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<pre><a name="line-1"></a><span class='hs-comment'>{-# OPTIONS -w #-}</span>
<a name="line-2"></a><span class='hs-comment'>-- The above warning supression flag is a temporary kludge.</span>
<a name="line-3"></a><span class='hs-comment'>-- While working on this module you are encouraged to remove it and fix</span>
<a name="line-4"></a><span class='hs-comment'>-- any warnings in the module. See</span>
<a name="line-5"></a><span class='hs-comment'>-- <a href="http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings">http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings</a></span>
<a name="line-6"></a><span class='hs-comment'>-- for details</span>
<a name="line-7"></a>
<a name="line-8"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-9"></a><span class='hs-comment'>--</span>
<a name="line-10"></a><span class='hs-comment'>-- Generating machine code (instruction selection)</span>
<a name="line-11"></a><span class='hs-comment'>--</span>
<a name="line-12"></a><span class='hs-comment'>-- (c) The University of Glasgow 1996-2004</span>
<a name="line-13"></a><span class='hs-comment'>--</span>
<a name="line-14"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-15"></a>
<a name="line-16"></a><span class='hs-comment'>-- This is a big module, but, if you pay attention to</span>
<a name="line-17"></a><span class='hs-comment'>-- (a) the sectioning, (b) the type signatures, and</span>
<a name="line-18"></a><span class='hs-comment'>-- (c) the #if blah_TARGET_ARCH} things, the</span>
<a name="line-19"></a><span class='hs-comment'>-- structure should not be too overwhelming.</span>
<a name="line-20"></a>
<a name="line-21"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>X86</span><span class='hs-varop'>.</span><span class='hs-conid'>CodeGen</span> <span class='hs-layout'>(</span>
<a name="line-22"></a> <span class='hs-varid'>cmmTopCodeGen</span><span class='hs-layout'>,</span>
<a name="line-23"></a> <span class='hs-conid'>InstrBlock</span>
<a name="line-24"></a><span class='hs-layout'>)</span>
<a name="line-25"></a>
<a name="line-26"></a><span class='hs-keyword'>where</span>
<a name="line-27"></a>
<a name="line-28"></a><span class='hs-cpp'>#include "HsVersions.h"</span>
<a name="line-29"></a><span class='hs-cpp'>#include "nativeGen/NCG.h"</span>
<a name="line-30"></a><span class='hs-cpp'>#include "../includes/MachDeps.h"</span>
<a name="line-31"></a>
<a name="line-32"></a><span class='hs-comment'>-- NCG stuff:</span>
<a name="line-33"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>X86</span><span class='hs-varop'>.</span><span class='hs-conid'>Instr</span>
<a name="line-34"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>X86</span><span class='hs-varop'>.</span><span class='hs-conid'>Cond</span>
<a name="line-35"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>X86</span><span class='hs-varop'>.</span><span class='hs-conid'>Regs</span>
<a name="line-36"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>X86</span><span class='hs-varop'>.</span><span class='hs-conid'>RegInfo</span>
<a name="line-37"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>X86</span><span class='hs-varop'>.</span><span class='hs-conid'>Ppr</span>
<a name="line-38"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Instruction</span>
<a name="line-39"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>PIC</span>
<a name="line-40"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>NCGMonad</span>
<a name="line-41"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Size</span>
<a name="line-42"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Reg</span>
<a name="line-43"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>RegClass</span>
<a name="line-44"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Platform</span>
<a name="line-45"></a>
<a name="line-46"></a><span class='hs-comment'>-- Our intermediate code:</span>
<a name="line-47"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>BasicTypes</span>
<a name="line-48"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>BlockId</span>
<a name="line-49"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>PprCmm</span> <span class='hs-layout'>(</span> <span class='hs-varid'>pprExpr</span> <span class='hs-layout'>)</span>
<a name="line-50"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Cmm</span>
<a name="line-51"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>CLabel</span>
<a name="line-52"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>ClosureInfo</span> <span class='hs-layout'>(</span> <span class='hs-conid'>C_SRT</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-53"></a>
<a name="line-54"></a><span class='hs-comment'>-- The rest:</span>
<a name="line-55"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>StaticFlags</span> <span class='hs-layout'>(</span> <span class='hs-varid'>opt_PIC</span> <span class='hs-layout'>)</span>
<a name="line-56"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>ForeignCall</span> <span class='hs-layout'>(</span> <span class='hs-conid'>CCallConv</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-57"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>OrdList</span>
<a name="line-58"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Pretty</span>
<a name="line-59"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Outputable</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>O</span>
<a name="line-60"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Outputable</span>
<a name="line-61"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>FastString</span>
<a name="line-62"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>FastBool</span> <span class='hs-layout'>(</span> <span class='hs-varid'>isFastTrue</span> <span class='hs-layout'>)</span>
<a name="line-63"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Constants</span> <span class='hs-layout'>(</span> <span class='hs-varid'>wORD_SIZE</span> <span class='hs-layout'>)</span>
<a name="line-64"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>DynFlags</span>
<a name="line-65"></a>
<a name="line-66"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Debug</span><span class='hs-varop'>.</span><span class='hs-conid'>Trace</span> <span class='hs-layout'>(</span> <span class='hs-varid'>trace</span> <span class='hs-layout'>)</span>
<a name="line-67"></a>
<a name="line-68"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span> <span class='hs-layout'>(</span> <span class='hs-varid'>mapAndUnzipM</span> <span class='hs-layout'>)</span>
<a name="line-69"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span> <span class='hs-varid'>fromJust</span> <span class='hs-layout'>)</span>
<a name="line-70"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Bits</span>
<a name="line-71"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Word</span>
<a name="line-72"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Int</span>
<a name="line-73"></a>
<a name="line-74"></a>
<a name="line-75"></a><a name="cmmTopCodeGen"></a><span class='hs-definition'>cmmTopCodeGen</span>
<a name="line-76"></a> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DynFlags</span>
<a name="line-77"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>RawCmmTop</span>
<a name="line-78"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>NatCmmTop</span> <span class='hs-conid'>Instr</span><span class='hs-keyglyph'>]</span>
<a name="line-79"></a>
<a name="line-80"></a><span class='hs-definition'>cmmTopCodeGen</span> <span class='hs-varid'>dynflags</span>
<a name="line-81"></a> <span class='hs-layout'>(</span><span class='hs-conid'>CmmProc</span> <span class='hs-varid'>info</span> <span class='hs-varid'>lab</span> <span class='hs-varid'>params</span> <span class='hs-layout'>(</span><span class='hs-conid'>ListGraph</span> <span class='hs-varid'>blocks</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-82"></a> <span class='hs-layout'>(</span><span class='hs-varid'>nat_blocks</span><span class='hs-layout'>,</span><span class='hs-varid'>statics</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapAndUnzipM</span> <span class='hs-varid'>basicBlockCodeGen</span> <span class='hs-varid'>blocks</span>
<a name="line-83"></a> <span class='hs-varid'>picBaseMb</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getPicBaseMaybeNat</span>
<a name="line-84"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>proc</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CmmProc</span> <span class='hs-varid'>info</span> <span class='hs-varid'>lab</span> <span class='hs-varid'>params</span> <span class='hs-layout'>(</span><span class='hs-conid'>ListGraph</span> <span class='hs-varop'>$</span> <span class='hs-varid'>concat</span> <span class='hs-varid'>nat_blocks</span><span class='hs-layout'>)</span>
<a name="line-85"></a> <span class='hs-varid'>tops</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>proc</span> <span class='hs-conop'>:</span> <span class='hs-varid'>concat</span> <span class='hs-varid'>statics</span>
<a name="line-86"></a> <span class='hs-varid'>os</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>platformOS</span> <span class='hs-varop'>$</span> <span class='hs-varid'>targetPlatform</span> <span class='hs-varid'>dynflags</span>
<a name="line-87"></a>
<a name="line-88"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>picBaseMb</span> <span class='hs-keyword'>of</span>
<a name="line-89"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>picBase</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>initializePicBase_x86</span> <span class='hs-conid'>ArchX86</span> <span class='hs-varid'>os</span> <span class='hs-varid'>picBase</span> <span class='hs-varid'>tops</span>
<a name="line-90"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varid'>tops</span>
<a name="line-91"></a>
<a name="line-92"></a><span class='hs-definition'>cmmTopCodeGen</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmData</span> <span class='hs-varid'>sec</span> <span class='hs-varid'>dat</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-93"></a> <span class='hs-varid'>return</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmData</span> <span class='hs-varid'>sec</span> <span class='hs-varid'>dat</span><span class='hs-keyglyph'>]</span> <span class='hs-comment'>-- no translation, we just use CmmStatic</span>
<a name="line-94"></a>
<a name="line-95"></a>
<a name="line-96"></a><a name="basicBlockCodeGen"></a><span class='hs-definition'>basicBlockCodeGen</span>
<a name="line-97"></a> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmBasicBlock</span>
<a name="line-98"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-layout'>(</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>NatBasicBlock</span> <span class='hs-conid'>Instr</span><span class='hs-keyglyph'>]</span>
<a name="line-99"></a> <span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>NatCmmTop</span> <span class='hs-conid'>Instr</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-100"></a>
<a name="line-101"></a><span class='hs-definition'>basicBlockCodeGen</span> <span class='hs-layout'>(</span><span class='hs-conid'>BasicBlock</span> <span class='hs-varid'>id</span> <span class='hs-varid'>stmts</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-102"></a> <span class='hs-varid'>instrs</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>stmtsToInstrs</span> <span class='hs-varid'>stmts</span>
<a name="line-103"></a> <span class='hs-comment'>-- code generation may introduce new basic block boundaries, which</span>
<a name="line-104"></a> <span class='hs-comment'>-- are indicated by the NEWBLOCK instruction. We must split up the</span>
<a name="line-105"></a> <span class='hs-comment'>-- instruction stream into basic blocks again. Also, we extract</span>
<a name="line-106"></a> <span class='hs-comment'>-- LDATAs here too.</span>
<a name="line-107"></a> <span class='hs-keyword'>let</span>
<a name="line-108"></a> <span class='hs-layout'>(</span><span class='hs-varid'>top</span><span class='hs-layout'>,</span><span class='hs-varid'>other_blocks</span><span class='hs-layout'>,</span><span class='hs-varid'>statics</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldrOL</span> <span class='hs-varid'>mkBlocks</span> <span class='hs-layout'>(</span><span class='hs-conid'>[]</span><span class='hs-layout'>,</span><span class='hs-conid'>[]</span><span class='hs-layout'>,</span><span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <span class='hs-varid'>instrs</span>
<a name="line-109"></a>
<a name="line-110"></a> <span class='hs-varid'>mkBlocks</span> <span class='hs-layout'>(</span><span class='hs-conid'>NEWBLOCK</span> <span class='hs-varid'>id</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>instrs</span><span class='hs-layout'>,</span><span class='hs-varid'>blocks</span><span class='hs-layout'>,</span><span class='hs-varid'>statics</span><span class='hs-layout'>)</span>
<a name="line-111"></a> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>[]</span><span class='hs-layout'>,</span> <span class='hs-conid'>BasicBlock</span> <span class='hs-varid'>id</span> <span class='hs-varid'>instrs</span> <span class='hs-conop'>:</span> <span class='hs-varid'>blocks</span><span class='hs-layout'>,</span> <span class='hs-varid'>statics</span><span class='hs-layout'>)</span>
<a name="line-112"></a> <span class='hs-varid'>mkBlocks</span> <span class='hs-layout'>(</span><span class='hs-conid'>LDATA</span> <span class='hs-varid'>sec</span> <span class='hs-varid'>dat</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>instrs</span><span class='hs-layout'>,</span><span class='hs-varid'>blocks</span><span class='hs-layout'>,</span><span class='hs-varid'>statics</span><span class='hs-layout'>)</span>
<a name="line-113"></a> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>instrs</span><span class='hs-layout'>,</span> <span class='hs-varid'>blocks</span><span class='hs-layout'>,</span> <span class='hs-conid'>CmmData</span> <span class='hs-varid'>sec</span> <span class='hs-varid'>dat</span><span class='hs-conop'>:</span><span class='hs-varid'>statics</span><span class='hs-layout'>)</span>
<a name="line-114"></a> <span class='hs-varid'>mkBlocks</span> <span class='hs-varid'>instr</span> <span class='hs-layout'>(</span><span class='hs-varid'>instrs</span><span class='hs-layout'>,</span><span class='hs-varid'>blocks</span><span class='hs-layout'>,</span><span class='hs-varid'>statics</span><span class='hs-layout'>)</span>
<a name="line-115"></a> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>instr</span><span class='hs-conop'>:</span><span class='hs-varid'>instrs</span><span class='hs-layout'>,</span> <span class='hs-varid'>blocks</span><span class='hs-layout'>,</span> <span class='hs-varid'>statics</span><span class='hs-layout'>)</span>
<a name="line-116"></a> <span class='hs-comment'>-- in</span>
<a name="line-117"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>BasicBlock</span> <span class='hs-varid'>id</span> <span class='hs-varid'>top</span> <span class='hs-conop'>:</span> <span class='hs-varid'>other_blocks</span><span class='hs-layout'>,</span> <span class='hs-varid'>statics</span><span class='hs-layout'>)</span>
<a name="line-118"></a>
<a name="line-119"></a>
<a name="line-120"></a><a name="stmtsToInstrs"></a><span class='hs-definition'>stmtsToInstrs</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmStmt</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>InstrBlock</span>
<a name="line-121"></a><span class='hs-definition'>stmtsToInstrs</span> <span class='hs-varid'>stmts</span>
<a name="line-122"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>instrss</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-varid'>stmtToInstrs</span> <span class='hs-varid'>stmts</span>
<a name="line-123"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>concatOL</span> <span class='hs-varid'>instrss</span><span class='hs-layout'>)</span>
<a name="line-124"></a>
<a name="line-125"></a>
<a name="line-126"></a><a name="stmtToInstrs"></a><span class='hs-definition'>stmtToInstrs</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmStmt</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>InstrBlock</span>
<a name="line-127"></a><span class='hs-definition'>stmtToInstrs</span> <span class='hs-varid'>stmt</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>stmt</span> <span class='hs-keyword'>of</span>
<a name="line-128"></a> <span class='hs-conid'>CmmNop</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varid'>nilOL</span>
<a name="line-129"></a> <span class='hs-conid'>CmmComment</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>unitOL</span> <span class='hs-layout'>(</span><span class='hs-conid'>COMMENT</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-130"></a>
<a name="line-131"></a> <span class='hs-conid'>CmmAssign</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>src</span>
<a name="line-132"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isFloatType</span> <span class='hs-varid'>ty</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>assignReg_FltCode</span> <span class='hs-varid'>size</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>src</span>
<a name="line-133"></a><span class='hs-cpp'>#if WORD_SIZE_IN_BITS==32</span>
<a name="line-134"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isWord64</span> <span class='hs-varid'>ty</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>assignReg_I64Code</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>src</span>
<a name="line-135"></a><span class='hs-cpp'>#endif</span>
<a name="line-136"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>assignReg_IntCode</span> <span class='hs-varid'>size</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>src</span>
<a name="line-137"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>ty</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cmmRegType</span> <span class='hs-varid'>reg</span>
<a name="line-138"></a> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cmmTypeSize</span> <span class='hs-varid'>ty</span>
<a name="line-139"></a>
<a name="line-140"></a> <span class='hs-conid'>CmmStore</span> <span class='hs-varid'>addr</span> <span class='hs-varid'>src</span>
<a name="line-141"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isFloatType</span> <span class='hs-varid'>ty</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>assignMem_FltCode</span> <span class='hs-varid'>size</span> <span class='hs-varid'>addr</span> <span class='hs-varid'>src</span>
<a name="line-142"></a><span class='hs-cpp'>#if WORD_SIZE_IN_BITS==32</span>
<a name="line-143"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isWord64</span> <span class='hs-varid'>ty</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>assignMem_I64Code</span> <span class='hs-varid'>addr</span> <span class='hs-varid'>src</span>
<a name="line-144"></a><span class='hs-cpp'>#endif</span>
<a name="line-145"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>assignMem_IntCode</span> <span class='hs-varid'>size</span> <span class='hs-varid'>addr</span> <span class='hs-varid'>src</span>
<a name="line-146"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>ty</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cmmExprType</span> <span class='hs-varid'>src</span>
<a name="line-147"></a> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cmmTypeSize</span> <span class='hs-varid'>ty</span>
<a name="line-148"></a>
<a name="line-149"></a> <span class='hs-conid'>CmmCall</span> <span class='hs-varid'>target</span> <span class='hs-varid'>result_regs</span> <span class='hs-varid'>args</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span>
<a name="line-150"></a> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>genCCall</span> <span class='hs-varid'>target</span> <span class='hs-varid'>result_regs</span> <span class='hs-varid'>args</span>
<a name="line-151"></a>
<a name="line-152"></a> <span class='hs-conid'>CmmBranch</span> <span class='hs-varid'>id</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>genBranch</span> <span class='hs-varid'>id</span>
<a name="line-153"></a> <span class='hs-conid'>CmmCondBranch</span> <span class='hs-varid'>arg</span> <span class='hs-varid'>id</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>genCondJump</span> <span class='hs-varid'>id</span> <span class='hs-varid'>arg</span>
<a name="line-154"></a> <span class='hs-conid'>CmmSwitch</span> <span class='hs-varid'>arg</span> <span class='hs-varid'>ids</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>genSwitch</span> <span class='hs-varid'>arg</span> <span class='hs-varid'>ids</span>
<a name="line-155"></a> <span class='hs-conid'>CmmJump</span> <span class='hs-varid'>arg</span> <span class='hs-varid'>params</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>genJump</span> <span class='hs-varid'>arg</span>
<a name="line-156"></a> <span class='hs-conid'>CmmReturn</span> <span class='hs-varid'>params</span> <span class='hs-keyglyph'>-></span>
<a name="line-157"></a> <span class='hs-varid'>panic</span> <span class='hs-str'>"stmtToInstrs: return statement should have been cps'd away"</span>
<a name="line-158"></a>
<a name="line-159"></a>
<a name="line-160"></a><a name="InstrBlock"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-161"></a><a name="InstrBlock"></a><span class='hs-comment'>-- | 'InstrBlock's are the insn sequences generated by the insn selectors.</span>
<a name="line-162"></a><a name="InstrBlock"></a><span class='hs-comment'>-- They are really trees of insns to facilitate fast appending, where a</span>
<a name="line-163"></a><a name="InstrBlock"></a><span class='hs-comment'>-- left-to-right traversal yields the insns in the correct order.</span>
<a name="line-164"></a><a name="InstrBlock"></a><span class='hs-comment'>--</span>
<a name="line-165"></a><a name="InstrBlock"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>InstrBlock</span>
<a name="line-166"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>OrdList</span> <span class='hs-conid'>Instr</span>
<a name="line-167"></a>
<a name="line-168"></a>
<a name="line-169"></a><a name="CondCode"></a><span class='hs-comment'>-- | Condition codes passed up the tree.</span>
<a name="line-170"></a><a name="CondCode"></a><span class='hs-comment'>--</span>
<a name="line-171"></a><a name="CondCode"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>CondCode</span>
<a name="line-172"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CondCode</span> <span class='hs-conid'>Bool</span> <span class='hs-conid'>Cond</span> <span class='hs-conid'>InstrBlock</span>
<a name="line-173"></a>
<a name="line-174"></a>
<a name="line-175"></a><a name="ChildCode64"></a><span class='hs-comment'>-- | a.k.a "Register64"</span>
<a name="line-176"></a><a name="ChildCode64"></a><span class='hs-comment'>-- Reg is the lower 32-bit temporary which contains the result. </span>
<a name="line-177"></a><a name="ChildCode64"></a><span class='hs-comment'>-- Use getHiVRegFromLo to find the other VRegUnique. </span>
<a name="line-178"></a><a name="ChildCode64"></a><span class='hs-comment'>--</span>
<a name="line-179"></a><a name="ChildCode64"></a><span class='hs-comment'>-- Rules of this simplified insn selection game are therefore that</span>
<a name="line-180"></a><a name="ChildCode64"></a><span class='hs-comment'>-- the returned Reg may be modified</span>
<a name="line-181"></a><a name="ChildCode64"></a><span class='hs-comment'>--</span>
<a name="line-182"></a><a name="ChildCode64"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>ChildCode64</span>
<a name="line-183"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ChildCode64</span>
<a name="line-184"></a> <span class='hs-conid'>InstrBlock</span>
<a name="line-185"></a> <span class='hs-conid'>Reg</span>
<a name="line-186"></a>
<a name="line-187"></a>
<a name="line-188"></a><a name="Register"></a><span class='hs-comment'>-- | Register's passed up the tree. If the stix code forces the register</span>
<a name="line-189"></a><a name="Register"></a><span class='hs-comment'>-- to live in a pre-decided machine register, it comes out as @Fixed@;</span>
<a name="line-190"></a><a name="Register"></a><span class='hs-comment'>-- otherwise, it comes out as @Any@, and the parent can decide which</span>
<a name="line-191"></a><a name="Register"></a><span class='hs-comment'>-- register to put it in.</span>
<a name="line-192"></a><a name="Register"></a><span class='hs-comment'>--</span>
<a name="line-193"></a><a name="Register"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Register</span>
<a name="line-194"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Fixed</span> <span class='hs-conid'>Size</span> <span class='hs-conid'>Reg</span> <span class='hs-conid'>InstrBlock</span>
<a name="line-195"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Any</span> <span class='hs-conid'>Size</span> <span class='hs-layout'>(</span><span class='hs-conid'>Reg</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>InstrBlock</span><span class='hs-layout'>)</span>
<a name="line-196"></a>
<a name="line-197"></a>
<a name="line-198"></a><a name="swizzleRegisterRep"></a><span class='hs-definition'>swizzleRegisterRep</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Register</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Size</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Register</span>
<a name="line-199"></a><span class='hs-definition'>swizzleRegisterRep</span> <span class='hs-layout'>(</span><span class='hs-conid'>Fixed</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Fixed</span> <span class='hs-varid'>size</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>code</span>
<a name="line-200"></a><span class='hs-definition'>swizzleRegisterRep</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>codefn</span><span class='hs-layout'>)</span> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Any</span> <span class='hs-varid'>size</span> <span class='hs-varid'>codefn</span>
<a name="line-201"></a>
<a name="line-202"></a>
<a name="line-203"></a><a name="getRegisterReg"></a><span class='hs-comment'>-- | Grab the Reg for a CmmReg</span>
<a name="line-204"></a><span class='hs-definition'>getRegisterReg</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmReg</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Reg</span>
<a name="line-205"></a>
<a name="line-206"></a><span class='hs-definition'>getRegisterReg</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLocal</span> <span class='hs-layout'>(</span><span class='hs-conid'>LocalReg</span> <span class='hs-varid'>u</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-207"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>RegVirtual</span> <span class='hs-varop'>$</span> <span class='hs-varid'>mkVirtualReg</span> <span class='hs-varid'>u</span> <span class='hs-layout'>(</span><span class='hs-varid'>cmmTypeSize</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span>
<a name="line-208"></a>
<a name="line-209"></a><span class='hs-definition'>getRegisterReg</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmGlobal</span> <span class='hs-varid'>mid</span><span class='hs-layout'>)</span>
<a name="line-210"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>get_GlobalReg_reg_or_addr</span> <span class='hs-varid'>mid</span> <span class='hs-keyword'>of</span>
<a name="line-211"></a> <span class='hs-conid'>Left</span> <span class='hs-varid'>reg</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>RegReal</span> <span class='hs-varop'>$</span> <span class='hs-varid'>reg</span>
<a name="line-212"></a> <span class='hs-sel'>_other</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>pprPanic</span> <span class='hs-str'>"getRegisterReg-memory"</span> <span class='hs-layout'>(</span><span class='hs-varid'>ppr</span> <span class='hs-varop'>$</span> <span class='hs-conid'>CmmGlobal</span> <span class='hs-varid'>mid</span><span class='hs-layout'>)</span>
<a name="line-213"></a> <span class='hs-comment'>-- By this stage, the only MagicIds remaining should be the</span>
<a name="line-214"></a> <span class='hs-comment'>-- ones which map to a real machine register on this</span>
<a name="line-215"></a> <span class='hs-comment'>-- platform. Hence ...</span>
<a name="line-216"></a>
<a name="line-217"></a>
<a name="line-218"></a><a name="Amode"></a><span class='hs-comment'>-- | Memory addressing modes passed up the tree.</span>
<a name="line-219"></a><a name="Amode"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Amode</span>
<a name="line-220"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Amode</span> <span class='hs-conid'>AddrMode</span> <span class='hs-conid'>InstrBlock</span>
<a name="line-221"></a>
<a name="line-222"></a><span class='hs-comment'>{-
<a name="line-223"></a>Now, given a tree (the argument to an CmmLoad) that references memory,
<a name="line-224"></a>produce a suitable addressing mode.
<a name="line-225"></a>
<a name="line-226"></a>A Rule of the Game (tm) for Amodes: use of the addr bit must
<a name="line-227"></a>immediately follow use of the code part, since the code part puts
<a name="line-228"></a>values in registers which the addr then refers to. So you can't put
<a name="line-229"></a>anything in between, lest it overwrite some of those registers. If
<a name="line-230"></a>you need to do some other computation between the code part and use of
<a name="line-231"></a>the addr bit, first store the effective address from the amode in a
<a name="line-232"></a>temporary, then do the other computation, and then use the temporary:
<a name="line-233"></a>
<a name="line-234"></a> code
<a name="line-235"></a> LEA amode, tmp
<a name="line-236"></a> ... other computation ...
<a name="line-237"></a> ... (tmp) ...
<a name="line-238"></a>-}</span>
<a name="line-239"></a>
<a name="line-240"></a>
<a name="line-241"></a><a name="is32BitInteger"></a><span class='hs-comment'>-- | Check whether an integer will fit in 32 bits.</span>
<a name="line-242"></a><span class='hs-comment'>-- A CmmInt is intended to be truncated to the appropriate </span>
<a name="line-243"></a><span class='hs-comment'>-- number of bits, so here we truncate it to Int64. This is</span>
<a name="line-244"></a><span class='hs-comment'>-- important because e.g. -1 as a CmmInt might be either</span>
<a name="line-245"></a><span class='hs-comment'>-- -1 or 18446744073709551615.</span>
<a name="line-246"></a><span class='hs-comment'>--</span>
<a name="line-247"></a><span class='hs-definition'>is32BitInteger</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Integer</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-248"></a><span class='hs-definition'>is32BitInteger</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>i64</span> <span class='hs-varop'><=</span> <span class='hs-num'>0x7fffffff</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>i64</span> <span class='hs-varop'>>=</span> <span class='hs-comment'>-</span><span class='hs-num'>0x80000000</span>
<a name="line-249"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>i64</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int64</span>
<a name="line-250"></a>
<a name="line-251"></a>
<a name="line-252"></a><a name="jumpTableEntry"></a><span class='hs-comment'>-- | Convert a BlockId to some CmmStatic data</span>
<a name="line-253"></a><span class='hs-definition'>jumpTableEntry</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>BlockId</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmStatic</span>
<a name="line-254"></a><span class='hs-definition'>jumpTableEntry</span> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CmmStaticLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-num'>0</span> <span class='hs-varid'>wordWidth</span><span class='hs-layout'>)</span>
<a name="line-255"></a><span class='hs-definition'>jumpTableEntry</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>BlockId</span> <span class='hs-varid'>id</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CmmStaticLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLabel</span> <span class='hs-varid'>blockLabel</span><span class='hs-layout'>)</span>
<a name="line-256"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>blockLabel</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mkAsmTempLabel</span> <span class='hs-varid'>id</span>
<a name="line-257"></a>
<a name="line-258"></a>
<a name="line-259"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-260"></a><span class='hs-comment'>-- General things for putting together code sequences</span>
<a name="line-261"></a>
<a name="line-262"></a><a name="mangleIndexTree"></a><span class='hs-comment'>-- Expand CmmRegOff. ToDo: should we do it this way around, or convert</span>
<a name="line-263"></a><span class='hs-comment'>-- CmmExprs into CmmRegOff?</span>
<a name="line-264"></a><span class='hs-definition'>mangleIndexTree</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span>
<a name="line-265"></a><span class='hs-definition'>mangleIndexTree</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmRegOff</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>off</span><span class='hs-layout'>)</span>
<a name="line-266"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_Add</span> <span class='hs-varid'>width</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmReg</span> <span class='hs-varid'>reg</span><span class='hs-layout'>,</span> <span class='hs-conid'>CmmLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>off</span><span class='hs-layout'>)</span> <span class='hs-varid'>width</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-267"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>width</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>typeWidth</span> <span class='hs-layout'>(</span><span class='hs-varid'>cmmRegType</span> <span class='hs-varid'>reg</span><span class='hs-layout'>)</span>
<a name="line-268"></a>
<a name="line-269"></a><a name="getSomeReg"></a><span class='hs-comment'>-- | The dual to getAnyReg: compute an expression into a register, but</span>
<a name="line-270"></a><span class='hs-comment'>-- we don't mind which one it is.</span>
<a name="line-271"></a><span class='hs-definition'>getSomeReg</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-layout'>(</span><span class='hs-conid'>Reg</span><span class='hs-layout'>,</span> <span class='hs-conid'>InstrBlock</span><span class='hs-layout'>)</span>
<a name="line-272"></a><span class='hs-definition'>getSomeReg</span> <span class='hs-varid'>expr</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-273"></a> <span class='hs-varid'>r</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getRegister</span> <span class='hs-varid'>expr</span>
<a name="line-274"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>r</span> <span class='hs-keyword'>of</span>
<a name="line-275"></a> <span class='hs-conid'>Any</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-276"></a> <span class='hs-varid'>tmp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegNat</span> <span class='hs-varid'>rep</span>
<a name="line-277"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>tmp</span><span class='hs-layout'>,</span> <span class='hs-varid'>code</span> <span class='hs-varid'>tmp</span><span class='hs-layout'>)</span>
<a name="line-278"></a> <span class='hs-conid'>Fixed</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>-></span>
<a name="line-279"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-280"></a>
<a name="line-281"></a>
<a name="line-282"></a>
<a name="line-283"></a>
<a name="line-284"></a>
<a name="line-285"></a><a name="assignMem_I64Code"></a><span class='hs-definition'>assignMem_I64Code</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>InstrBlock</span>
<a name="line-286"></a><span class='hs-definition'>assignMem_I64Code</span> <span class='hs-varid'>addrTree</span> <span class='hs-varid'>valueTree</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-287"></a> <span class='hs-conid'>Amode</span> <span class='hs-varid'>addr</span> <span class='hs-varid'>addr_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAmode</span> <span class='hs-varid'>addrTree</span>
<a name="line-288"></a> <span class='hs-conid'>ChildCode64</span> <span class='hs-varid'>vcode</span> <span class='hs-varid'>rlo</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>iselExpr64</span> <span class='hs-varid'>valueTree</span>
<a name="line-289"></a> <span class='hs-keyword'>let</span>
<a name="line-290"></a> <span class='hs-varid'>rhi</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getHiVRegFromLo</span> <span class='hs-varid'>rlo</span>
<a name="line-291"></a>
<a name="line-292"></a> <span class='hs-comment'>-- Little-endian store</span>
<a name="line-293"></a> <span class='hs-varid'>mov_lo</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>MOV</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>rlo</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-varid'>addr</span><span class='hs-layout'>)</span>
<a name="line-294"></a> <span class='hs-varid'>mov_hi</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>MOV</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>rhi</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromJust</span> <span class='hs-layout'>(</span><span class='hs-varid'>addrOffset</span> <span class='hs-varid'>addr</span> <span class='hs-num'>4</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-295"></a> <span class='hs-comment'>-- in</span>
<a name="line-296"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>vcode</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>addr_code</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-varid'>mov_lo</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-varid'>mov_hi</span><span class='hs-layout'>)</span>
<a name="line-297"></a>
<a name="line-298"></a>
<a name="line-299"></a><a name="assignReg_I64Code"></a><span class='hs-definition'>assignReg_I64Code</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmReg</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>InstrBlock</span>
<a name="line-300"></a><span class='hs-definition'>assignReg_I64Code</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLocal</span> <span class='hs-layout'>(</span><span class='hs-conid'>LocalReg</span> <span class='hs-varid'>u_dst</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>valueTree</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-301"></a> <span class='hs-conid'>ChildCode64</span> <span class='hs-varid'>vcode</span> <span class='hs-varid'>r_src_lo</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>iselExpr64</span> <span class='hs-varid'>valueTree</span>
<a name="line-302"></a> <span class='hs-keyword'>let</span>
<a name="line-303"></a> <span class='hs-varid'>r_dst_lo</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>RegVirtual</span> <span class='hs-varop'>$</span> <span class='hs-varid'>mkVirtualReg</span> <span class='hs-varid'>u_dst</span> <span class='hs-conid'>II32</span>
<a name="line-304"></a> <span class='hs-varid'>r_dst_hi</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getHiVRegFromLo</span> <span class='hs-varid'>r_dst_lo</span>
<a name="line-305"></a> <span class='hs-varid'>r_src_hi</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getHiVRegFromLo</span> <span class='hs-varid'>r_src_lo</span>
<a name="line-306"></a> <span class='hs-varid'>mov_lo</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>MOV</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>r_src_lo</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>r_dst_lo</span><span class='hs-layout'>)</span>
<a name="line-307"></a> <span class='hs-varid'>mov_hi</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>MOV</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>r_src_hi</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>r_dst_hi</span><span class='hs-layout'>)</span>
<a name="line-308"></a> <span class='hs-comment'>-- in</span>
<a name="line-309"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span>
<a name="line-310"></a> <span class='hs-varid'>vcode</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-varid'>mov_lo</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-varid'>mov_hi</span>
<a name="line-311"></a> <span class='hs-layout'>)</span>
<a name="line-312"></a>
<a name="line-313"></a><span class='hs-definition'>assignReg_I64Code</span> <span class='hs-varid'>lvalue</span> <span class='hs-varid'>valueTree</span>
<a name="line-314"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>panic</span> <span class='hs-str'>"assignReg_I64Code(i386): invalid lvalue"</span>
<a name="line-315"></a>
<a name="line-316"></a>
<a name="line-317"></a>
<a name="line-318"></a>
<a name="line-319"></a><a name="iselExpr64"></a><span class='hs-definition'>iselExpr64</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>ChildCode64</span>
<a name="line-320"></a><span class='hs-definition'>iselExpr64</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-varid'>i</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-321"></a> <span class='hs-layout'>(</span><span class='hs-varid'>rlo</span><span class='hs-layout'>,</span><span class='hs-varid'>rhi</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegPairNat</span> <span class='hs-conid'>II32</span>
<a name="line-322"></a> <span class='hs-keyword'>let</span>
<a name="line-323"></a> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word32</span><span class='hs-layout'>)</span>
<a name="line-324"></a> <span class='hs-varid'>q</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>i</span> <span class='hs-varop'>`shiftR`</span> <span class='hs-num'>32</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word32</span><span class='hs-layout'>)</span>
<a name="line-325"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-326"></a> <span class='hs-conid'>MOV</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpImm</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInteger</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>rlo</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-327"></a> <span class='hs-conid'>MOV</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpImm</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInteger</span> <span class='hs-varid'>q</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>rhi</span><span class='hs-layout'>)</span>
<a name="line-328"></a> <span class='hs-keyglyph'>]</span>
<a name="line-329"></a> <span class='hs-comment'>-- in</span>
<a name="line-330"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>ChildCode64</span> <span class='hs-varid'>code</span> <span class='hs-varid'>rlo</span><span class='hs-layout'>)</span>
<a name="line-331"></a>
<a name="line-332"></a><span class='hs-definition'>iselExpr64</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLoad</span> <span class='hs-varid'>addrTree</span> <span class='hs-varid'>ty</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isWord64</span> <span class='hs-varid'>ty</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-333"></a> <span class='hs-conid'>Amode</span> <span class='hs-varid'>addr</span> <span class='hs-varid'>addr_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAmode</span> <span class='hs-varid'>addrTree</span>
<a name="line-334"></a> <span class='hs-layout'>(</span><span class='hs-varid'>rlo</span><span class='hs-layout'>,</span><span class='hs-varid'>rhi</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegPairNat</span> <span class='hs-conid'>II32</span>
<a name="line-335"></a> <span class='hs-keyword'>let</span>
<a name="line-336"></a> <span class='hs-varid'>mov_lo</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>MOV</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-varid'>addr</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>rlo</span><span class='hs-layout'>)</span>
<a name="line-337"></a> <span class='hs-varid'>mov_hi</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>MOV</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromJust</span> <span class='hs-layout'>(</span><span class='hs-varid'>addrOffset</span> <span class='hs-varid'>addr</span> <span class='hs-num'>4</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>rhi</span><span class='hs-layout'>)</span>
<a name="line-338"></a> <span class='hs-comment'>-- in</span>
<a name="line-339"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span>
<a name="line-340"></a> <span class='hs-conid'>ChildCode64</span> <span class='hs-layout'>(</span><span class='hs-varid'>addr_code</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-varid'>mov_lo</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-varid'>mov_hi</span><span class='hs-layout'>)</span>
<a name="line-341"></a> <span class='hs-varid'>rlo</span>
<a name="line-342"></a> <span class='hs-layout'>)</span>
<a name="line-343"></a>
<a name="line-344"></a><span class='hs-definition'>iselExpr64</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmReg</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLocal</span> <span class='hs-layout'>(</span><span class='hs-conid'>LocalReg</span> <span class='hs-varid'>vu</span> <span class='hs-varid'>ty</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isWord64</span> <span class='hs-varid'>ty</span>
<a name="line-345"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>ChildCode64</span> <span class='hs-varid'>nilOL</span> <span class='hs-layout'>(</span><span class='hs-conid'>RegVirtual</span> <span class='hs-varop'>$</span> <span class='hs-varid'>mkVirtualReg</span> <span class='hs-varid'>vu</span> <span class='hs-conid'>II32</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-346"></a>
<a name="line-347"></a><span class='hs-comment'>-- we handle addition, but rather badly</span>
<a name="line-348"></a><span class='hs-definition'>iselExpr64</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_Add</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>e1</span><span class='hs-layout'>,</span> <span class='hs-conid'>CmmLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-varid'>i</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-349"></a> <span class='hs-conid'>ChildCode64</span> <span class='hs-varid'>code1</span> <span class='hs-varid'>r1lo</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>iselExpr64</span> <span class='hs-varid'>e1</span>
<a name="line-350"></a> <span class='hs-layout'>(</span><span class='hs-varid'>rlo</span><span class='hs-layout'>,</span><span class='hs-varid'>rhi</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegPairNat</span> <span class='hs-conid'>II32</span>
<a name="line-351"></a> <span class='hs-keyword'>let</span>
<a name="line-352"></a> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word32</span><span class='hs-layout'>)</span>
<a name="line-353"></a> <span class='hs-varid'>q</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>i</span> <span class='hs-varop'>`shiftR`</span> <span class='hs-num'>32</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word32</span><span class='hs-layout'>)</span>
<a name="line-354"></a> <span class='hs-varid'>r1hi</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getHiVRegFromLo</span> <span class='hs-varid'>r1lo</span>
<a name="line-355"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>code1</span> <span class='hs-varop'>`appOL`</span>
<a name="line-356"></a> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span> <span class='hs-conid'>MOV</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>r1lo</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>rlo</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-357"></a> <span class='hs-conid'>ADD</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpImm</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInteger</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>rlo</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-358"></a> <span class='hs-conid'>MOV</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>r1hi</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>rhi</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-359"></a> <span class='hs-conid'>ADC</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpImm</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInteger</span> <span class='hs-varid'>q</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>rhi</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>]</span>
<a name="line-360"></a> <span class='hs-comment'>-- in</span>
<a name="line-361"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>ChildCode64</span> <span class='hs-varid'>code</span> <span class='hs-varid'>rlo</span><span class='hs-layout'>)</span>
<a name="line-362"></a>
<a name="line-363"></a><span class='hs-definition'>iselExpr64</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_Add</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>e1</span><span class='hs-layout'>,</span><span class='hs-varid'>e2</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-364"></a> <span class='hs-conid'>ChildCode64</span> <span class='hs-varid'>code1</span> <span class='hs-varid'>r1lo</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>iselExpr64</span> <span class='hs-varid'>e1</span>
<a name="line-365"></a> <span class='hs-conid'>ChildCode64</span> <span class='hs-varid'>code2</span> <span class='hs-varid'>r2lo</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>iselExpr64</span> <span class='hs-varid'>e2</span>
<a name="line-366"></a> <span class='hs-layout'>(</span><span class='hs-varid'>rlo</span><span class='hs-layout'>,</span><span class='hs-varid'>rhi</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegPairNat</span> <span class='hs-conid'>II32</span>
<a name="line-367"></a> <span class='hs-keyword'>let</span>
<a name="line-368"></a> <span class='hs-varid'>r1hi</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getHiVRegFromLo</span> <span class='hs-varid'>r1lo</span>
<a name="line-369"></a> <span class='hs-varid'>r2hi</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getHiVRegFromLo</span> <span class='hs-varid'>r2lo</span>
<a name="line-370"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>code1</span> <span class='hs-varop'>`appOL`</span>
<a name="line-371"></a> <span class='hs-varid'>code2</span> <span class='hs-varop'>`appOL`</span>
<a name="line-372"></a> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span> <span class='hs-conid'>MOV</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>r1lo</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>rlo</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-373"></a> <span class='hs-conid'>ADD</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>r2lo</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>rlo</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-374"></a> <span class='hs-conid'>MOV</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>r1hi</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>rhi</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-375"></a> <span class='hs-conid'>ADC</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>r2hi</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>rhi</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>]</span>
<a name="line-376"></a> <span class='hs-comment'>-- in</span>
<a name="line-377"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>ChildCode64</span> <span class='hs-varid'>code</span> <span class='hs-varid'>rlo</span><span class='hs-layout'>)</span>
<a name="line-378"></a>
<a name="line-379"></a><span class='hs-definition'>iselExpr64</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_UU_Conv</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>W64</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>expr</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-380"></a> <span class='hs-varid'>fn</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAnyReg</span> <span class='hs-varid'>expr</span>
<a name="line-381"></a> <span class='hs-varid'>r_dst_lo</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegNat</span> <span class='hs-conid'>II32</span>
<a name="line-382"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>r_dst_hi</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getHiVRegFromLo</span> <span class='hs-varid'>r_dst_lo</span>
<a name="line-383"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fn</span> <span class='hs-varid'>r_dst_lo</span>
<a name="line-384"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span>
<a name="line-385"></a> <span class='hs-conid'>ChildCode64</span> <span class='hs-layout'>(</span><span class='hs-varid'>code</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-386"></a> <span class='hs-conid'>MOV</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpImm</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>r_dst_hi</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-387"></a> <span class='hs-varid'>r_dst_lo</span>
<a name="line-388"></a> <span class='hs-layout'>)</span>
<a name="line-389"></a>
<a name="line-390"></a><span class='hs-definition'>iselExpr64</span> <span class='hs-varid'>expr</span>
<a name="line-391"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pprPanic</span> <span class='hs-str'>"iselExpr64(i386)"</span> <span class='hs-layout'>(</span><span class='hs-varid'>ppr</span> <span class='hs-varid'>expr</span><span class='hs-layout'>)</span>
<a name="line-392"></a>
<a name="line-393"></a>
<a name="line-394"></a>
<a name="line-395"></a><a name="getRegister"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-396"></a><span class='hs-definition'>getRegister</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>Register</span>
<a name="line-397"></a>
<a name="line-398"></a><span class='hs-cpp'>#if !x86_64_TARGET_ARCH</span>
<a name="line-399"></a> <span class='hs-comment'>-- on x86_64, we have %rip for PicBaseReg, but it's not a full-featured</span>
<a name="line-400"></a> <span class='hs-comment'>-- register, it can only be used for rip-relative addressing.</span>
<a name="line-401"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmReg</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmGlobal</span> <span class='hs-conid'>PicBaseReg</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-402"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-403"></a> <span class='hs-varid'>reg</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getPicBaseNat</span> <span class='hs-varid'>archWordSize</span>
<a name="line-404"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Fixed</span> <span class='hs-varid'>archWordSize</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>nilOL</span><span class='hs-layout'>)</span>
<a name="line-405"></a><span class='hs-cpp'>#endif</span>
<a name="line-406"></a>
<a name="line-407"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmReg</span> <span class='hs-varid'>reg</span><span class='hs-layout'>)</span>
<a name="line-408"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Fixed</span> <span class='hs-layout'>(</span><span class='hs-varid'>cmmTypeSize</span> <span class='hs-layout'>(</span><span class='hs-varid'>cmmRegType</span> <span class='hs-varid'>reg</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-409"></a> <span class='hs-layout'>(</span><span class='hs-varid'>getRegisterReg</span> <span class='hs-varid'>reg</span><span class='hs-layout'>)</span> <span class='hs-varid'>nilOL</span><span class='hs-layout'>)</span>
<a name="line-410"></a>
<a name="line-411"></a><span class='hs-definition'>getRegister</span> <span class='hs-varid'>tree</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>CmmRegOff</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span>
<a name="line-412"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-varid'>mangleIndexTree</span> <span class='hs-varid'>tree</span><span class='hs-layout'>)</span>
<a name="line-413"></a>
<a name="line-414"></a>
<a name="line-415"></a><span class='hs-cpp'>#if WORD_SIZE_IN_BITS==32</span>
<a name="line-416"></a> <span class='hs-comment'>-- for 32-bit architectuers, support some 64 -> 32 bit conversions:</span>
<a name="line-417"></a> <span class='hs-comment'>-- TO_W_(x), TO_W_(x >> 32)</span>
<a name="line-418"></a>
<a name="line-419"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_UU_Conv</span> <span class='hs-conid'>W64</span> <span class='hs-conid'>W32</span><span class='hs-layout'>)</span>
<a name="line-420"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_U_Shr</span> <span class='hs-conid'>W64</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span><span class='hs-conid'>CmmLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-num'>32</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-421"></a> <span class='hs-conid'>ChildCode64</span> <span class='hs-varid'>code</span> <span class='hs-varid'>rlo</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>iselExpr64</span> <span class='hs-varid'>x</span>
<a name="line-422"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Fixed</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-varid'>getHiVRegFromLo</span> <span class='hs-varid'>rlo</span><span class='hs-layout'>)</span> <span class='hs-varid'>code</span>
<a name="line-423"></a>
<a name="line-424"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W64</span> <span class='hs-conid'>W32</span><span class='hs-layout'>)</span>
<a name="line-425"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_U_Shr</span> <span class='hs-conid'>W64</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span><span class='hs-conid'>CmmLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-num'>32</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-426"></a> <span class='hs-conid'>ChildCode64</span> <span class='hs-varid'>code</span> <span class='hs-varid'>rlo</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>iselExpr64</span> <span class='hs-varid'>x</span>
<a name="line-427"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Fixed</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-varid'>getHiVRegFromLo</span> <span class='hs-varid'>rlo</span><span class='hs-layout'>)</span> <span class='hs-varid'>code</span>
<a name="line-428"></a>
<a name="line-429"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_UU_Conv</span> <span class='hs-conid'>W64</span> <span class='hs-conid'>W32</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-430"></a> <span class='hs-conid'>ChildCode64</span> <span class='hs-varid'>code</span> <span class='hs-varid'>rlo</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>iselExpr64</span> <span class='hs-varid'>x</span>
<a name="line-431"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Fixed</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>rlo</span> <span class='hs-varid'>code</span>
<a name="line-432"></a>
<a name="line-433"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W64</span> <span class='hs-conid'>W32</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-434"></a> <span class='hs-conid'>ChildCode64</span> <span class='hs-varid'>code</span> <span class='hs-varid'>rlo</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>iselExpr64</span> <span class='hs-varid'>x</span>
<a name="line-435"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Fixed</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>rlo</span> <span class='hs-varid'>code</span>
<a name="line-436"></a>
<a name="line-437"></a><span class='hs-cpp'>#endif</span>
<a name="line-438"></a>
<a name="line-439"></a>
<a name="line-440"></a>
<a name="line-441"></a>
<a name="line-442"></a><span class='hs-cpp'>#if i386_TARGET_ARCH</span>
<a name="line-443"></a>
<a name="line-444"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmFloat</span> <span class='hs-varid'>f</span> <span class='hs-conid'>W32</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-445"></a> <span class='hs-varid'>lbl</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewLabelNat</span>
<a name="line-446"></a> <span class='hs-varid'>dflags</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getDynFlagsNat</span>
<a name="line-447"></a> <span class='hs-varid'>dynRef</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>cmmMakeDynamicReference</span> <span class='hs-varid'>dflags</span> <span class='hs-varid'>addImportNat</span> <span class='hs-conid'>DataReference</span> <span class='hs-varid'>lbl</span>
<a name="line-448"></a> <span class='hs-conid'>Amode</span> <span class='hs-varid'>addr</span> <span class='hs-varid'>addr_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAmode</span> <span class='hs-varid'>dynRef</span>
<a name="line-449"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span>
<a name="line-450"></a> <span class='hs-conid'>LDATA</span> <span class='hs-conid'>ReadOnlyData</span>
<a name="line-451"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmDataLabel</span> <span class='hs-varid'>lbl</span><span class='hs-layout'>,</span>
<a name="line-452"></a> <span class='hs-conid'>CmmStaticLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmFloat</span> <span class='hs-varid'>f</span> <span class='hs-conid'>W32</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-453"></a> <span class='hs-varop'>`consOL`</span> <span class='hs-layout'>(</span><span class='hs-varid'>addr_code</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-454"></a> <span class='hs-conid'>GLD</span> <span class='hs-conid'>FF32</span> <span class='hs-varid'>addr</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span>
<a name="line-455"></a> <span class='hs-comment'>-- in</span>
<a name="line-456"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-conid'>FF32</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-457"></a>
<a name="line-458"></a>
<a name="line-459"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmFloat</span> <span class='hs-varid'>d</span> <span class='hs-conid'>W64</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-460"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>d</span> <span class='hs-varop'>==</span> <span class='hs-num'>0.0</span>
<a name="line-461"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unitOL</span> <span class='hs-layout'>(</span><span class='hs-conid'>GLDZ</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span>
<a name="line-462"></a> <span class='hs-keyword'>in</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-conid'>FF64</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-463"></a>
<a name="line-464"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>d</span> <span class='hs-varop'>==</span> <span class='hs-num'>1.0</span>
<a name="line-465"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unitOL</span> <span class='hs-layout'>(</span><span class='hs-conid'>GLD1</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span>
<a name="line-466"></a> <span class='hs-keyword'>in</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-conid'>FF64</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-467"></a>
<a name="line-468"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-469"></a> <span class='hs-varid'>lbl</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewLabelNat</span>
<a name="line-470"></a> <span class='hs-varid'>dflags</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getDynFlagsNat</span>
<a name="line-471"></a> <span class='hs-varid'>dynRef</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>cmmMakeDynamicReference</span> <span class='hs-varid'>dflags</span> <span class='hs-varid'>addImportNat</span> <span class='hs-conid'>DataReference</span> <span class='hs-varid'>lbl</span>
<a name="line-472"></a> <span class='hs-conid'>Amode</span> <span class='hs-varid'>addr</span> <span class='hs-varid'>addr_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAmode</span> <span class='hs-varid'>dynRef</span>
<a name="line-473"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span>
<a name="line-474"></a> <span class='hs-conid'>LDATA</span> <span class='hs-conid'>ReadOnlyData</span>
<a name="line-475"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmDataLabel</span> <span class='hs-varid'>lbl</span><span class='hs-layout'>,</span>
<a name="line-476"></a> <span class='hs-conid'>CmmStaticLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmFloat</span> <span class='hs-varid'>d</span> <span class='hs-conid'>W64</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-477"></a> <span class='hs-varop'>`consOL`</span> <span class='hs-layout'>(</span><span class='hs-varid'>addr_code</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-478"></a> <span class='hs-conid'>GLD</span> <span class='hs-conid'>FF64</span> <span class='hs-varid'>addr</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span>
<a name="line-479"></a> <span class='hs-comment'>-- in</span>
<a name="line-480"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-conid'>FF64</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-481"></a>
<a name="line-482"></a><span class='hs-cpp'>#endif /* i386_TARGET_ARCH */</span>
<a name="line-483"></a>
<a name="line-484"></a>
<a name="line-485"></a>
<a name="line-486"></a>
<a name="line-487"></a><span class='hs-cpp'>#if x86_64_TARGET_ARCH</span>
<a name="line-488"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmFloat</span> <span class='hs-num'>0.0</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-489"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>floatSize</span> <span class='hs-varid'>w</span>
<a name="line-490"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unitOL</span> <span class='hs-layout'>(</span><span class='hs-conid'>XOR</span> <span class='hs-varid'>size</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-491"></a> <span class='hs-comment'>-- I don't know why there are xorpd, xorps, and pxor instructions.</span>
<a name="line-492"></a> <span class='hs-comment'>-- They all appear to do the same thing --SDM</span>
<a name="line-493"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-varid'>size</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-494"></a>
<a name="line-495"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmFloat</span> <span class='hs-varid'>f</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-496"></a> <span class='hs-varid'>lbl</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewLabelNat</span>
<a name="line-497"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-498"></a> <span class='hs-conid'>LDATA</span> <span class='hs-conid'>ReadOnlyData</span>
<a name="line-499"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmDataLabel</span> <span class='hs-varid'>lbl</span><span class='hs-layout'>,</span>
<a name="line-500"></a> <span class='hs-conid'>CmmStaticLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmFloat</span> <span class='hs-varid'>f</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span>
<a name="line-501"></a> <span class='hs-conid'>MOV</span> <span class='hs-varid'>size</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-layout'>(</span><span class='hs-varid'>ripRel</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmCLbl</span> <span class='hs-varid'>lbl</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span>
<a name="line-502"></a> <span class='hs-keyglyph'>]</span>
<a name="line-503"></a> <span class='hs-comment'>-- in</span>
<a name="line-504"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-varid'>size</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-505"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>floatSize</span> <span class='hs-varid'>w</span>
<a name="line-506"></a>
<a name="line-507"></a><span class='hs-cpp'>#endif /* x86_64_TARGET_ARCH */</span>
<a name="line-508"></a>
<a name="line-509"></a>
<a name="line-510"></a>
<a name="line-511"></a>
<a name="line-512"></a>
<a name="line-513"></a><span class='hs-comment'>-- catch simple cases of zero- or sign-extended load</span>
<a name="line-514"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_UU_Conv</span> <span class='hs-conid'>W8</span> <span class='hs-conid'>W32</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmLoad</span> <span class='hs-varid'>addr</span> <span class='hs-keyword'>_</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-515"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>intLoadCode</span> <span class='hs-layout'>(</span><span class='hs-conid'>MOVZxL</span> <span class='hs-conid'>II8</span><span class='hs-layout'>)</span> <span class='hs-varid'>addr</span>
<a name="line-516"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-517"></a>
<a name="line-518"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W8</span> <span class='hs-conid'>W32</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmLoad</span> <span class='hs-varid'>addr</span> <span class='hs-keyword'>_</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-519"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>intLoadCode</span> <span class='hs-layout'>(</span><span class='hs-conid'>MOVSxL</span> <span class='hs-conid'>II8</span><span class='hs-layout'>)</span> <span class='hs-varid'>addr</span>
<a name="line-520"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-521"></a>
<a name="line-522"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_UU_Conv</span> <span class='hs-conid'>W16</span> <span class='hs-conid'>W32</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmLoad</span> <span class='hs-varid'>addr</span> <span class='hs-keyword'>_</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-523"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>intLoadCode</span> <span class='hs-layout'>(</span><span class='hs-conid'>MOVZxL</span> <span class='hs-conid'>II16</span><span class='hs-layout'>)</span> <span class='hs-varid'>addr</span>
<a name="line-524"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-525"></a>
<a name="line-526"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W16</span> <span class='hs-conid'>W32</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmLoad</span> <span class='hs-varid'>addr</span> <span class='hs-keyword'>_</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-527"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>intLoadCode</span> <span class='hs-layout'>(</span><span class='hs-conid'>MOVSxL</span> <span class='hs-conid'>II16</span><span class='hs-layout'>)</span> <span class='hs-varid'>addr</span>
<a name="line-528"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-529"></a>
<a name="line-530"></a>
<a name="line-531"></a><span class='hs-cpp'>#if x86_64_TARGET_ARCH</span>
<a name="line-532"></a>
<a name="line-533"></a><span class='hs-comment'>-- catch simple cases of zero- or sign-extended load</span>
<a name="line-534"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_UU_Conv</span> <span class='hs-conid'>W8</span> <span class='hs-conid'>W64</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmLoad</span> <span class='hs-varid'>addr</span> <span class='hs-keyword'>_</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-535"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>intLoadCode</span> <span class='hs-layout'>(</span><span class='hs-conid'>MOVZxL</span> <span class='hs-conid'>II8</span><span class='hs-layout'>)</span> <span class='hs-varid'>addr</span>
<a name="line-536"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-conid'>II64</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-537"></a>
<a name="line-538"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W8</span> <span class='hs-conid'>W64</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmLoad</span> <span class='hs-varid'>addr</span> <span class='hs-keyword'>_</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-539"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>intLoadCode</span> <span class='hs-layout'>(</span><span class='hs-conid'>MOVSxL</span> <span class='hs-conid'>II8</span><span class='hs-layout'>)</span> <span class='hs-varid'>addr</span>
<a name="line-540"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-conid'>II64</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-541"></a>
<a name="line-542"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_UU_Conv</span> <span class='hs-conid'>W16</span> <span class='hs-conid'>W64</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmLoad</span> <span class='hs-varid'>addr</span> <span class='hs-keyword'>_</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-543"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>intLoadCode</span> <span class='hs-layout'>(</span><span class='hs-conid'>MOVZxL</span> <span class='hs-conid'>II16</span><span class='hs-layout'>)</span> <span class='hs-varid'>addr</span>
<a name="line-544"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-conid'>II64</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-545"></a>
<a name="line-546"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W16</span> <span class='hs-conid'>W64</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmLoad</span> <span class='hs-varid'>addr</span> <span class='hs-keyword'>_</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-547"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>intLoadCode</span> <span class='hs-layout'>(</span><span class='hs-conid'>MOVSxL</span> <span class='hs-conid'>II16</span><span class='hs-layout'>)</span> <span class='hs-varid'>addr</span>
<a name="line-548"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-conid'>II64</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-549"></a>
<a name="line-550"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_UU_Conv</span> <span class='hs-conid'>W32</span> <span class='hs-conid'>W64</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmLoad</span> <span class='hs-varid'>addr</span> <span class='hs-keyword'>_</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-551"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>intLoadCode</span> <span class='hs-layout'>(</span><span class='hs-conid'>MOV</span> <span class='hs-conid'>II32</span><span class='hs-layout'>)</span> <span class='hs-varid'>addr</span> <span class='hs-comment'>-- 32-bit loads zero-extend</span>
<a name="line-552"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-conid'>II64</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-553"></a>
<a name="line-554"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W32</span> <span class='hs-conid'>W64</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmLoad</span> <span class='hs-varid'>addr</span> <span class='hs-keyword'>_</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-555"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>intLoadCode</span> <span class='hs-layout'>(</span><span class='hs-conid'>MOVSxL</span> <span class='hs-conid'>II32</span><span class='hs-layout'>)</span> <span class='hs-varid'>addr</span>
<a name="line-556"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-conid'>II64</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-557"></a>
<a name="line-558"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_Add</span> <span class='hs-conid'>W64</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmReg</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmGlobal</span> <span class='hs-conid'>PicBaseReg</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-559"></a> <span class='hs-conid'>CmmLit</span> <span class='hs-varid'>displacement</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-560"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Any</span> <span class='hs-conid'>II64</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>dst</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>unitOL</span> <span class='hs-varop'>$</span>
<a name="line-561"></a> <span class='hs-conid'>LEA</span> <span class='hs-conid'>II64</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-layout'>(</span><span class='hs-varid'>ripRel</span> <span class='hs-layout'>(</span><span class='hs-varid'>litToImm</span> <span class='hs-varid'>displacement</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-562"></a>
<a name="line-563"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_F_Neg</span> <span class='hs-conid'>W32</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-564"></a> <span class='hs-varid'>x_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAnyReg</span> <span class='hs-varid'>x</span>
<a name="line-565"></a> <span class='hs-varid'>lbl</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewLabelNat</span>
<a name="line-566"></a> <span class='hs-keyword'>let</span>
<a name="line-567"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x_code</span> <span class='hs-varid'>dst</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-568"></a> <span class='hs-comment'>-- This is how gcc does it, so it can't be that bad:</span>
<a name="line-569"></a> <span class='hs-conid'>LDATA</span> <span class='hs-conid'>ReadOnlyData16</span> <span class='hs-keyglyph'>[</span>
<a name="line-570"></a> <span class='hs-conid'>CmmAlign</span> <span class='hs-num'>16</span><span class='hs-layout'>,</span>
<a name="line-571"></a> <span class='hs-conid'>CmmDataLabel</span> <span class='hs-varid'>lbl</span><span class='hs-layout'>,</span>
<a name="line-572"></a> <span class='hs-conid'>CmmStaticLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-num'>0x80000000</span> <span class='hs-conid'>W32</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-573"></a> <span class='hs-conid'>CmmStaticLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-num'>0</span> <span class='hs-conid'>W32</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-574"></a> <span class='hs-conid'>CmmStaticLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-num'>0</span> <span class='hs-conid'>W32</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-575"></a> <span class='hs-conid'>CmmStaticLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-num'>0</span> <span class='hs-conid'>W32</span><span class='hs-layout'>)</span>
<a name="line-576"></a> <span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span>
<a name="line-577"></a> <span class='hs-conid'>XOR</span> <span class='hs-conid'>FF32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-layout'>(</span><span class='hs-varid'>ripRel</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmCLbl</span> <span class='hs-varid'>lbl</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span>
<a name="line-578"></a> <span class='hs-comment'>-- xorps, so we need the 128-bit constant</span>
<a name="line-579"></a> <span class='hs-comment'>-- ToDo: rip-relative</span>
<a name="line-580"></a> <span class='hs-keyglyph'>]</span>
<a name="line-581"></a> <span class='hs-comment'>--</span>
<a name="line-582"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-conid'>FF32</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-583"></a>
<a name="line-584"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_F_Neg</span> <span class='hs-conid'>W64</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-585"></a> <span class='hs-varid'>x_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAnyReg</span> <span class='hs-varid'>x</span>
<a name="line-586"></a> <span class='hs-varid'>lbl</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewLabelNat</span>
<a name="line-587"></a> <span class='hs-keyword'>let</span>
<a name="line-588"></a> <span class='hs-comment'>-- This is how gcc does it, so it can't be that bad:</span>
<a name="line-589"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x_code</span> <span class='hs-varid'>dst</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-590"></a> <span class='hs-conid'>LDATA</span> <span class='hs-conid'>ReadOnlyData16</span> <span class='hs-keyglyph'>[</span>
<a name="line-591"></a> <span class='hs-conid'>CmmAlign</span> <span class='hs-num'>16</span><span class='hs-layout'>,</span>
<a name="line-592"></a> <span class='hs-conid'>CmmDataLabel</span> <span class='hs-varid'>lbl</span><span class='hs-layout'>,</span>
<a name="line-593"></a> <span class='hs-conid'>CmmStaticLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-num'>0x8000000000000000</span> <span class='hs-conid'>W64</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-594"></a> <span class='hs-conid'>CmmStaticLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-num'>0</span> <span class='hs-conid'>W64</span><span class='hs-layout'>)</span>
<a name="line-595"></a> <span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span>
<a name="line-596"></a> <span class='hs-comment'>-- gcc puts an unpck here. Wonder if we need it.</span>
<a name="line-597"></a> <span class='hs-conid'>XOR</span> <span class='hs-conid'>FF64</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-layout'>(</span><span class='hs-varid'>ripRel</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmCLbl</span> <span class='hs-varid'>lbl</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span>
<a name="line-598"></a> <span class='hs-comment'>-- xorpd, so we need the 128-bit constant</span>
<a name="line-599"></a> <span class='hs-keyglyph'>]</span>
<a name="line-600"></a> <span class='hs-comment'>--</span>
<a name="line-601"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-conid'>FF64</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-602"></a>
<a name="line-603"></a><span class='hs-cpp'>#endif /* x86_64_TARGET_ARCH */</span>
<a name="line-604"></a>
<a name="line-605"></a>
<a name="line-606"></a>
<a name="line-607"></a>
<a name="line-608"></a>
<a name="line-609"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-varid'>mop</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- unary MachOps</span>
<a name="line-610"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>mop</span> <span class='hs-keyword'>of</span>
<a name="line-611"></a><span class='hs-cpp'>#if i386_TARGET_ARCH</span>
<a name="line-612"></a> <span class='hs-conid'>MO_F_Neg</span> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialUFCode</span> <span class='hs-conid'>FF32</span> <span class='hs-layout'>(</span><span class='hs-conid'>GNEG</span> <span class='hs-conid'>FF32</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span>
<a name="line-613"></a> <span class='hs-conid'>MO_F_Neg</span> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialUFCode</span> <span class='hs-conid'>FF64</span> <span class='hs-layout'>(</span><span class='hs-conid'>GNEG</span> <span class='hs-conid'>FF64</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span>
<a name="line-614"></a><span class='hs-cpp'>#endif</span>
<a name="line-615"></a>
<a name="line-616"></a> <span class='hs-conid'>MO_S_Neg</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>triv_ucode</span> <span class='hs-conid'>NEGI</span> <span class='hs-layout'>(</span><span class='hs-varid'>intSize</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span>
<a name="line-617"></a> <span class='hs-conid'>MO_F_Neg</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>triv_ucode</span> <span class='hs-conid'>NEGI</span> <span class='hs-layout'>(</span><span class='hs-varid'>floatSize</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span>
<a name="line-618"></a> <span class='hs-conid'>MO_Not</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>triv_ucode</span> <span class='hs-conid'>NOT</span> <span class='hs-layout'>(</span><span class='hs-varid'>intSize</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span>
<a name="line-619"></a>
<a name="line-620"></a> <span class='hs-comment'>-- Nop conversions</span>
<a name="line-621"></a> <span class='hs-conid'>MO_UU_Conv</span> <span class='hs-conid'>W32</span> <span class='hs-conid'>W8</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>toI8Reg</span> <span class='hs-conid'>W32</span> <span class='hs-varid'>x</span>
<a name="line-622"></a> <span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W32</span> <span class='hs-conid'>W8</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>toI8Reg</span> <span class='hs-conid'>W32</span> <span class='hs-varid'>x</span>
<a name="line-623"></a> <span class='hs-conid'>MO_UU_Conv</span> <span class='hs-conid'>W16</span> <span class='hs-conid'>W8</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>toI8Reg</span> <span class='hs-conid'>W16</span> <span class='hs-varid'>x</span>
<a name="line-624"></a> <span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W16</span> <span class='hs-conid'>W8</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>toI8Reg</span> <span class='hs-conid'>W16</span> <span class='hs-varid'>x</span>
<a name="line-625"></a> <span class='hs-conid'>MO_UU_Conv</span> <span class='hs-conid'>W32</span> <span class='hs-conid'>W16</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>toI16Reg</span> <span class='hs-conid'>W32</span> <span class='hs-varid'>x</span>
<a name="line-626"></a> <span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W32</span> <span class='hs-conid'>W16</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>toI16Reg</span> <span class='hs-conid'>W32</span> <span class='hs-varid'>x</span>
<a name="line-627"></a>
<a name="line-628"></a><span class='hs-cpp'>#if x86_64_TARGET_ARCH</span>
<a name="line-629"></a> <span class='hs-conid'>MO_UU_Conv</span> <span class='hs-conid'>W64</span> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>conversionNop</span> <span class='hs-conid'>II64</span> <span class='hs-varid'>x</span>
<a name="line-630"></a> <span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W64</span> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>conversionNop</span> <span class='hs-conid'>II64</span> <span class='hs-varid'>x</span>
<a name="line-631"></a> <span class='hs-conid'>MO_UU_Conv</span> <span class='hs-conid'>W64</span> <span class='hs-conid'>W16</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>toI16Reg</span> <span class='hs-conid'>W64</span> <span class='hs-varid'>x</span>
<a name="line-632"></a> <span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W64</span> <span class='hs-conid'>W16</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>toI16Reg</span> <span class='hs-conid'>W64</span> <span class='hs-varid'>x</span>
<a name="line-633"></a> <span class='hs-conid'>MO_UU_Conv</span> <span class='hs-conid'>W64</span> <span class='hs-conid'>W8</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>toI8Reg</span> <span class='hs-conid'>W64</span> <span class='hs-varid'>x</span>
<a name="line-634"></a> <span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W64</span> <span class='hs-conid'>W8</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>toI8Reg</span> <span class='hs-conid'>W64</span> <span class='hs-varid'>x</span>
<a name="line-635"></a><span class='hs-cpp'>#endif</span>
<a name="line-636"></a>
<a name="line-637"></a> <span class='hs-conid'>MO_UU_Conv</span> <span class='hs-varid'>rep1</span> <span class='hs-varid'>rep2</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>rep1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>rep2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>conversionNop</span> <span class='hs-layout'>(</span><span class='hs-varid'>intSize</span> <span class='hs-varid'>rep1</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span>
<a name="line-638"></a> <span class='hs-conid'>MO_SS_Conv</span> <span class='hs-varid'>rep1</span> <span class='hs-varid'>rep2</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>rep1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>rep2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>conversionNop</span> <span class='hs-layout'>(</span><span class='hs-varid'>intSize</span> <span class='hs-varid'>rep1</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span>
<a name="line-639"></a>
<a name="line-640"></a> <span class='hs-comment'>-- widenings</span>
<a name="line-641"></a> <span class='hs-conid'>MO_UU_Conv</span> <span class='hs-conid'>W8</span> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>integerExtend</span> <span class='hs-conid'>W8</span> <span class='hs-conid'>W32</span> <span class='hs-conid'>MOVZxL</span> <span class='hs-varid'>x</span>
<a name="line-642"></a> <span class='hs-conid'>MO_UU_Conv</span> <span class='hs-conid'>W16</span> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>integerExtend</span> <span class='hs-conid'>W16</span> <span class='hs-conid'>W32</span> <span class='hs-conid'>MOVZxL</span> <span class='hs-varid'>x</span>
<a name="line-643"></a> <span class='hs-conid'>MO_UU_Conv</span> <span class='hs-conid'>W8</span> <span class='hs-conid'>W16</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>integerExtend</span> <span class='hs-conid'>W8</span> <span class='hs-conid'>W16</span> <span class='hs-conid'>MOVZxL</span> <span class='hs-varid'>x</span>
<a name="line-644"></a>
<a name="line-645"></a> <span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W8</span> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>integerExtend</span> <span class='hs-conid'>W8</span> <span class='hs-conid'>W32</span> <span class='hs-conid'>MOVSxL</span> <span class='hs-varid'>x</span>
<a name="line-646"></a> <span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W16</span> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>integerExtend</span> <span class='hs-conid'>W16</span> <span class='hs-conid'>W32</span> <span class='hs-conid'>MOVSxL</span> <span class='hs-varid'>x</span>
<a name="line-647"></a> <span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W8</span> <span class='hs-conid'>W16</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>integerExtend</span> <span class='hs-conid'>W8</span> <span class='hs-conid'>W16</span> <span class='hs-conid'>MOVSxL</span> <span class='hs-varid'>x</span>
<a name="line-648"></a>
<a name="line-649"></a><span class='hs-cpp'>#if x86_64_TARGET_ARCH</span>
<a name="line-650"></a> <span class='hs-conid'>MO_UU_Conv</span> <span class='hs-conid'>W8</span> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>integerExtend</span> <span class='hs-conid'>W8</span> <span class='hs-conid'>W64</span> <span class='hs-conid'>MOVZxL</span> <span class='hs-varid'>x</span>
<a name="line-651"></a> <span class='hs-conid'>MO_UU_Conv</span> <span class='hs-conid'>W16</span> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>integerExtend</span> <span class='hs-conid'>W16</span> <span class='hs-conid'>W64</span> <span class='hs-conid'>MOVZxL</span> <span class='hs-varid'>x</span>
<a name="line-652"></a> <span class='hs-conid'>MO_UU_Conv</span> <span class='hs-conid'>W32</span> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>integerExtend</span> <span class='hs-conid'>W32</span> <span class='hs-conid'>W64</span> <span class='hs-conid'>MOVZxL</span> <span class='hs-varid'>x</span>
<a name="line-653"></a> <span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W8</span> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>integerExtend</span> <span class='hs-conid'>W8</span> <span class='hs-conid'>W64</span> <span class='hs-conid'>MOVSxL</span> <span class='hs-varid'>x</span>
<a name="line-654"></a> <span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W16</span> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>integerExtend</span> <span class='hs-conid'>W16</span> <span class='hs-conid'>W64</span> <span class='hs-conid'>MOVSxL</span> <span class='hs-varid'>x</span>
<a name="line-655"></a> <span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W32</span> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>integerExtend</span> <span class='hs-conid'>W32</span> <span class='hs-conid'>W64</span> <span class='hs-conid'>MOVSxL</span> <span class='hs-varid'>x</span>
<a name="line-656"></a> <span class='hs-comment'>-- for 32-to-64 bit zero extension, amd64 uses an ordinary movl.</span>
<a name="line-657"></a> <span class='hs-comment'>-- However, we don't want the register allocator to throw it</span>
<a name="line-658"></a> <span class='hs-comment'>-- away as an unnecessary reg-to-reg move, so we keep it in</span>
<a name="line-659"></a> <span class='hs-comment'>-- the form of a movzl and print it as a movl later.</span>
<a name="line-660"></a><span class='hs-cpp'>#endif</span>
<a name="line-661"></a>
<a name="line-662"></a><span class='hs-cpp'>#if i386_TARGET_ARCH</span>
<a name="line-663"></a> <span class='hs-conid'>MO_FF_Conv</span> <span class='hs-conid'>W32</span> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>conversionNop</span> <span class='hs-conid'>FF64</span> <span class='hs-varid'>x</span>
<a name="line-664"></a> <span class='hs-conid'>MO_FF_Conv</span> <span class='hs-conid'>W64</span> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>conversionNop</span> <span class='hs-conid'>FF32</span> <span class='hs-varid'>x</span>
<a name="line-665"></a><span class='hs-cpp'>#else</span>
<a name="line-666"></a> <span class='hs-conid'>MO_FF_Conv</span> <span class='hs-conid'>W32</span> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>coerceFP2FP</span> <span class='hs-conid'>W64</span> <span class='hs-varid'>x</span>
<a name="line-667"></a> <span class='hs-conid'>MO_FF_Conv</span> <span class='hs-conid'>W64</span> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>coerceFP2FP</span> <span class='hs-conid'>W32</span> <span class='hs-varid'>x</span>
<a name="line-668"></a><span class='hs-cpp'>#endif</span>
<a name="line-669"></a>
<a name="line-670"></a> <span class='hs-conid'>MO_FS_Conv</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>coerceFP2Int</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span> <span class='hs-varid'>x</span>
<a name="line-671"></a> <span class='hs-conid'>MO_SF_Conv</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>coerceInt2FP</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span> <span class='hs-varid'>x</span>
<a name="line-672"></a>
<a name="line-673"></a> <span class='hs-varid'>other</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>pprPanic</span> <span class='hs-str'>"getRegister"</span> <span class='hs-layout'>(</span><span class='hs-varid'>pprMachOp</span> <span class='hs-varid'>mop</span><span class='hs-layout'>)</span>
<a name="line-674"></a> <span class='hs-keyword'>where</span>
<a name="line-675"></a> <span class='hs-varid'>triv_ucode</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Size</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Operand</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Instr</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Size</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>Register</span>
<a name="line-676"></a> <span class='hs-varid'>triv_ucode</span> <span class='hs-varid'>instr</span> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>trivialUCode</span> <span class='hs-varid'>size</span> <span class='hs-layout'>(</span><span class='hs-varid'>instr</span> <span class='hs-varid'>size</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span>
<a name="line-677"></a>
<a name="line-678"></a> <span class='hs-comment'>-- signed or unsigned extension.</span>
<a name="line-679"></a> <span class='hs-varid'>integerExtend</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Width</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Width</span>
<a name="line-680"></a> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Size</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Operand</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Operand</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Instr</span><span class='hs-layout'>)</span>
<a name="line-681"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>Register</span>
<a name="line-682"></a> <span class='hs-varid'>integerExtend</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span> <span class='hs-varid'>instr</span> <span class='hs-varid'>expr</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-683"></a> <span class='hs-layout'>(</span><span class='hs-varid'>reg</span><span class='hs-layout'>,</span><span class='hs-varid'>e_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>from</span> <span class='hs-varop'>==</span> <span class='hs-conid'>W8</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>getByteReg</span> <span class='hs-varid'>expr</span>
<a name="line-684"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-varid'>expr</span>
<a name="line-685"></a> <span class='hs-keyword'>let</span>
<a name="line-686"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span>
<a name="line-687"></a> <span class='hs-varid'>e_code</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-688"></a> <span class='hs-varid'>instr</span> <span class='hs-layout'>(</span><span class='hs-varid'>intSize</span> <span class='hs-varid'>from</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>reg</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span>
<a name="line-689"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-layout'>(</span><span class='hs-varid'>intSize</span> <span class='hs-varid'>to</span><span class='hs-layout'>)</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-690"></a>
<a name="line-691"></a> <span class='hs-varid'>toI8Reg</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Width</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>Register</span>
<a name="line-692"></a> <span class='hs-varid'>toI8Reg</span> <span class='hs-varid'>new_rep</span> <span class='hs-varid'>expr</span>
<a name="line-693"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>codefn</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAnyReg</span> <span class='hs-varid'>expr</span>
<a name="line-694"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-layout'>(</span><span class='hs-varid'>intSize</span> <span class='hs-varid'>new_rep</span><span class='hs-layout'>)</span> <span class='hs-varid'>codefn</span><span class='hs-layout'>)</span>
<a name="line-695"></a> <span class='hs-comment'>-- HACK: use getAnyReg to get a byte-addressable register.</span>
<a name="line-696"></a> <span class='hs-comment'>-- If the source was a Fixed register, this will add the</span>
<a name="line-697"></a> <span class='hs-comment'>-- mov instruction to put it into the desired destination.</span>
<a name="line-698"></a> <span class='hs-comment'>-- We're assuming that the destination won't be a fixed</span>
<a name="line-699"></a> <span class='hs-comment'>-- non-byte-addressable register; it won't be, because all</span>
<a name="line-700"></a> <span class='hs-comment'>-- fixed registers are word-sized.</span>
<a name="line-701"></a>
<a name="line-702"></a> <span class='hs-varid'>toI16Reg</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toI8Reg</span> <span class='hs-comment'>-- for now</span>
<a name="line-703"></a>
<a name="line-704"></a> <span class='hs-varid'>conversionNop</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Size</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>Register</span>
<a name="line-705"></a> <span class='hs-varid'>conversionNop</span> <span class='hs-varid'>new_size</span> <span class='hs-varid'>expr</span>
<a name="line-706"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>e_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getRegister</span> <span class='hs-varid'>expr</span>
<a name="line-707"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>swizzleRegisterRep</span> <span class='hs-varid'>e_code</span> <span class='hs-varid'>new_size</span><span class='hs-layout'>)</span>
<a name="line-708"></a>
<a name="line-709"></a>
<a name="line-710"></a><span class='hs-definition'>getRegister</span> <span class='hs-varid'>e</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-varid'>mop</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-varid'>y</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- dyadic MachOps</span>
<a name="line-711"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>mop</span> <span class='hs-keyword'>of</span>
<a name="line-712"></a> <span class='hs-conid'>MO_F_Eq</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condFltReg</span> <span class='hs-conid'>EQQ</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-713"></a> <span class='hs-conid'>MO_F_Ne</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condFltReg</span> <span class='hs-conid'>NE</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-714"></a> <span class='hs-conid'>MO_F_Gt</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condFltReg</span> <span class='hs-conid'>GTT</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-715"></a> <span class='hs-conid'>MO_F_Ge</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condFltReg</span> <span class='hs-conid'>GE</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-716"></a> <span class='hs-conid'>MO_F_Lt</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condFltReg</span> <span class='hs-conid'>LTT</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-717"></a> <span class='hs-conid'>MO_F_Le</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condFltReg</span> <span class='hs-conid'>LE</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-718"></a>
<a name="line-719"></a> <span class='hs-conid'>MO_Eq</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condIntReg</span> <span class='hs-conid'>EQQ</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-720"></a> <span class='hs-conid'>MO_Ne</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condIntReg</span> <span class='hs-conid'>NE</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-721"></a>
<a name="line-722"></a> <span class='hs-conid'>MO_S_Gt</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condIntReg</span> <span class='hs-conid'>GTT</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-723"></a> <span class='hs-conid'>MO_S_Ge</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condIntReg</span> <span class='hs-conid'>GE</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-724"></a> <span class='hs-conid'>MO_S_Lt</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condIntReg</span> <span class='hs-conid'>LTT</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-725"></a> <span class='hs-conid'>MO_S_Le</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condIntReg</span> <span class='hs-conid'>LE</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-726"></a>
<a name="line-727"></a> <span class='hs-conid'>MO_U_Gt</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condIntReg</span> <span class='hs-conid'>GU</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-728"></a> <span class='hs-conid'>MO_U_Ge</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condIntReg</span> <span class='hs-conid'>GEU</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-729"></a> <span class='hs-conid'>MO_U_Lt</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condIntReg</span> <span class='hs-conid'>LU</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-730"></a> <span class='hs-conid'>MO_U_Le</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condIntReg</span> <span class='hs-conid'>LEU</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-731"></a>
<a name="line-732"></a><span class='hs-cpp'>#if i386_TARGET_ARCH</span>
<a name="line-733"></a> <span class='hs-conid'>MO_F_Add</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialFCode</span> <span class='hs-varid'>w</span> <span class='hs-conid'>GADD</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-734"></a> <span class='hs-conid'>MO_F_Sub</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialFCode</span> <span class='hs-varid'>w</span> <span class='hs-conid'>GSUB</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-735"></a> <span class='hs-conid'>MO_F_Quot</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialFCode</span> <span class='hs-varid'>w</span> <span class='hs-conid'>GDIV</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-736"></a> <span class='hs-conid'>MO_F_Mul</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialFCode</span> <span class='hs-varid'>w</span> <span class='hs-conid'>GMUL</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-737"></a><span class='hs-cpp'>#endif</span>
<a name="line-738"></a>
<a name="line-739"></a><span class='hs-cpp'>#if x86_64_TARGET_ARCH</span>
<a name="line-740"></a> <span class='hs-conid'>MO_F_Add</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialFCode</span> <span class='hs-varid'>w</span> <span class='hs-conid'>ADD</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-741"></a> <span class='hs-conid'>MO_F_Sub</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialFCode</span> <span class='hs-varid'>w</span> <span class='hs-conid'>SUB</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-742"></a> <span class='hs-conid'>MO_F_Quot</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialFCode</span> <span class='hs-varid'>w</span> <span class='hs-conid'>FDIV</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-743"></a> <span class='hs-conid'>MO_F_Mul</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialFCode</span> <span class='hs-varid'>w</span> <span class='hs-conid'>MUL</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-744"></a><span class='hs-cpp'>#endif</span>
<a name="line-745"></a>
<a name="line-746"></a> <span class='hs-conid'>MO_Add</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>add_code</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-747"></a> <span class='hs-conid'>MO_Sub</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>sub_code</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-748"></a>
<a name="line-749"></a> <span class='hs-conid'>MO_S_Quot</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>div_code</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>True</span> <span class='hs-conid'>True</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-750"></a> <span class='hs-conid'>MO_S_Rem</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>div_code</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>True</span> <span class='hs-conid'>False</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-751"></a> <span class='hs-conid'>MO_U_Quot</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>div_code</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>False</span> <span class='hs-conid'>True</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-752"></a> <span class='hs-conid'>MO_U_Rem</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>div_code</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>False</span> <span class='hs-conid'>False</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-753"></a>
<a name="line-754"></a> <span class='hs-conid'>MO_S_MulMayOflo</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>imulMayOflo</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-755"></a>
<a name="line-756"></a> <span class='hs-conid'>MO_Mul</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>triv_op</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>IMUL</span>
<a name="line-757"></a> <span class='hs-conid'>MO_And</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>triv_op</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>AND</span>
<a name="line-758"></a> <span class='hs-conid'>MO_Or</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>triv_op</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>OR</span>
<a name="line-759"></a> <span class='hs-conid'>MO_Xor</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>triv_op</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>XOR</span>
<a name="line-760"></a>
<a name="line-761"></a> <span class='hs-comment'>{- Shift ops on x86s have constraints on their source, it
<a name="line-762"></a> either has to be Imm, CL or 1
<a name="line-763"></a> => trivialCode is not restrictive enough (sigh.)
<a name="line-764"></a> -}</span>
<a name="line-765"></a> <span class='hs-conid'>MO_Shl</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>shift_code</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>SHL</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-comment'>{-False-}</span>
<a name="line-766"></a> <span class='hs-conid'>MO_U_Shr</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>shift_code</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>SHR</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-comment'>{-False-}</span>
<a name="line-767"></a> <span class='hs-conid'>MO_S_Shr</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>shift_code</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>SAR</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-comment'>{-False-}</span>
<a name="line-768"></a>
<a name="line-769"></a> <span class='hs-varid'>other</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>pprPanic</span> <span class='hs-str'>"getRegister(x86) - binary CmmMachOp (1)"</span> <span class='hs-layout'>(</span><span class='hs-varid'>pprMachOp</span> <span class='hs-varid'>mop</span><span class='hs-layout'>)</span>
<a name="line-770"></a> <span class='hs-keyword'>where</span>
<a name="line-771"></a> <span class='hs-comment'>--------------------</span>
<a name="line-772"></a> <span class='hs-varid'>triv_op</span> <span class='hs-varid'>width</span> <span class='hs-varid'>instr</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>trivialCode</span> <span class='hs-varid'>width</span> <span class='hs-varid'>op</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>op</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-773"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>op</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>instr</span> <span class='hs-layout'>(</span><span class='hs-varid'>intSize</span> <span class='hs-varid'>width</span><span class='hs-layout'>)</span>
<a name="line-774"></a>
<a name="line-775"></a> <span class='hs-varid'>imulMayOflo</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Width</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>Register</span>
<a name="line-776"></a> <span class='hs-varid'>imulMayOflo</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-777"></a> <span class='hs-layout'>(</span><span class='hs-varid'>a_reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>a_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNonClobberedReg</span> <span class='hs-varid'>a</span>
<a name="line-778"></a> <span class='hs-varid'>b_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAnyReg</span> <span class='hs-varid'>b</span>
<a name="line-779"></a> <span class='hs-keyword'>let</span>
<a name="line-780"></a> <span class='hs-varid'>shift_amt</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>rep</span> <span class='hs-keyword'>of</span>
<a name="line-781"></a> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>31</span>
<a name="line-782"></a> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>63</span>
<a name="line-783"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>panic</span> <span class='hs-str'>"shift_amt"</span>
<a name="line-784"></a>
<a name="line-785"></a> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>intSize</span> <span class='hs-varid'>rep</span>
<a name="line-786"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>a_code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>b_code</span> <span class='hs-varid'>eax</span> <span class='hs-varop'>`appOL`</span>
<a name="line-787"></a> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-788"></a> <span class='hs-conid'>IMUL2</span> <span class='hs-varid'>size</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>a_reg</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- result in %edx:%eax</span>
<a name="line-789"></a> <span class='hs-conid'>SAR</span> <span class='hs-varid'>size</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpImm</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-varid'>shift_amt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>eax</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-790"></a> <span class='hs-comment'>-- sign extend lower part</span>
<a name="line-791"></a> <span class='hs-conid'>SUB</span> <span class='hs-varid'>size</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>edx</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>eax</span><span class='hs-layout'>)</span>
<a name="line-792"></a> <span class='hs-comment'>-- compare against upper</span>
<a name="line-793"></a> <span class='hs-comment'>-- eax==0 if high part == sign extended low part</span>
<a name="line-794"></a> <span class='hs-keyglyph'>]</span>
<a name="line-795"></a> <span class='hs-comment'>-- in</span>
<a name="line-796"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Fixed</span> <span class='hs-varid'>size</span> <span class='hs-varid'>eax</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-797"></a>
<a name="line-798"></a> <span class='hs-comment'>--------------------</span>
<a name="line-799"></a> <span class='hs-varid'>shift_code</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Width</span>
<a name="line-800"></a> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Size</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Operand</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Operand</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Instr</span><span class='hs-layout'>)</span>
<a name="line-801"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span>
<a name="line-802"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span>
<a name="line-803"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>Register</span>
<a name="line-804"></a>
<a name="line-805"></a> <span class='hs-comment'>{- Case1: shift length as immediate -}</span>
<a name="line-806"></a> <span class='hs-varid'>shift_code</span> <span class='hs-varid'>width</span> <span class='hs-varid'>instr</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-807"></a> <span class='hs-varid'>x_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAnyReg</span> <span class='hs-varid'>x</span>
<a name="line-808"></a> <span class='hs-keyword'>let</span>
<a name="line-809"></a> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>intSize</span> <span class='hs-varid'>width</span>
<a name="line-810"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span>
<a name="line-811"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x_code</span> <span class='hs-varid'>dst</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-812"></a> <span class='hs-varid'>instr</span> <span class='hs-varid'>size</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpImm</span> <span class='hs-layout'>(</span><span class='hs-varid'>litToImm</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span>
<a name="line-813"></a> <span class='hs-comment'>-- in</span>
<a name="line-814"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-varid'>size</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-815"></a>
<a name="line-816"></a> <span class='hs-comment'>{- Case2: shift length is complex (non-immediate)
<a name="line-817"></a> * y must go in %ecx.
<a name="line-818"></a> * we cannot do y first *and* put its result in %ecx, because
<a name="line-819"></a> %ecx might be clobbered by x.
<a name="line-820"></a> * if we do y second, then x cannot be
<a name="line-821"></a> in a clobbered reg. Also, we cannot clobber x's reg
<a name="line-822"></a> with the instruction itself.
<a name="line-823"></a> * so we can either:
<a name="line-824"></a> - do y first, put its result in a fresh tmp, then copy it to %ecx later
<a name="line-825"></a> - do y second and put its result into %ecx. x gets placed in a fresh
<a name="line-826"></a> tmp. This is likely to be better, becuase the reg alloc can
<a name="line-827"></a> eliminate this reg->reg move here (it won't eliminate the other one,
<a name="line-828"></a> because the move is into the fixed %ecx).
<a name="line-829"></a> -}</span>
<a name="line-830"></a> <span class='hs-varid'>shift_code</span> <span class='hs-varid'>width</span> <span class='hs-varid'>instr</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-comment'>{-amount-}</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-831"></a> <span class='hs-varid'>x_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAnyReg</span> <span class='hs-varid'>x</span>
<a name="line-832"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>intSize</span> <span class='hs-varid'>width</span>
<a name="line-833"></a> <span class='hs-varid'>tmp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegNat</span> <span class='hs-varid'>size</span>
<a name="line-834"></a> <span class='hs-varid'>y_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAnyReg</span> <span class='hs-varid'>y</span>
<a name="line-835"></a> <span class='hs-keyword'>let</span>
<a name="line-836"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x_code</span> <span class='hs-varid'>tmp</span> <span class='hs-varop'>`appOL`</span>
<a name="line-837"></a> <span class='hs-varid'>y_code</span> <span class='hs-varid'>ecx</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-838"></a> <span class='hs-varid'>instr</span> <span class='hs-varid'>size</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>ecx</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tmp</span><span class='hs-layout'>)</span>
<a name="line-839"></a> <span class='hs-comment'>-- in</span>
<a name="line-840"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Fixed</span> <span class='hs-varid'>size</span> <span class='hs-varid'>tmp</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-841"></a>
<a name="line-842"></a> <span class='hs-comment'>--------------------</span>
<a name="line-843"></a> <span class='hs-varid'>add_code</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Width</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>Register</span>
<a name="line-844"></a> <span class='hs-varid'>add_code</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-varid'>y</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-845"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>is32BitInteger</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>add_int</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-846"></a> <span class='hs-varid'>add_code</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>trivialCode</span> <span class='hs-varid'>rep</span> <span class='hs-layout'>(</span><span class='hs-conid'>ADD</span> <span class='hs-varid'>size</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>ADD</span> <span class='hs-varid'>size</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-847"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>intSize</span> <span class='hs-varid'>rep</span>
<a name="line-848"></a>
<a name="line-849"></a> <span class='hs-comment'>--------------------</span>
<a name="line-850"></a> <span class='hs-varid'>sub_code</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Width</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>Register</span>
<a name="line-851"></a> <span class='hs-varid'>sub_code</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-varid'>y</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-852"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>is32BitInteger</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>add_int</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-853"></a> <span class='hs-varid'>sub_code</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>trivialCode</span> <span class='hs-varid'>rep</span> <span class='hs-layout'>(</span><span class='hs-conid'>SUB</span> <span class='hs-layout'>(</span><span class='hs-varid'>intSize</span> <span class='hs-varid'>rep</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-854"></a>
<a name="line-855"></a> <span class='hs-comment'>-- our three-operand add instruction:</span>
<a name="line-856"></a> <span class='hs-varid'>add_int</span> <span class='hs-varid'>width</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-857"></a> <span class='hs-layout'>(</span><span class='hs-varid'>x_reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>x_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-varid'>x</span>
<a name="line-858"></a> <span class='hs-keyword'>let</span>
<a name="line-859"></a> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>intSize</span> <span class='hs-varid'>width</span>
<a name="line-860"></a> <span class='hs-varid'>imm</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ImmInt</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromInteger</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-861"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span>
<a name="line-862"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x_code</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-863"></a> <span class='hs-conid'>LEA</span> <span class='hs-varid'>size</span>
<a name="line-864"></a> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-layout'>(</span><span class='hs-conid'>AddrBaseIndex</span> <span class='hs-layout'>(</span><span class='hs-conid'>EABaseReg</span> <span class='hs-varid'>x_reg</span><span class='hs-layout'>)</span> <span class='hs-conid'>EAIndexNone</span> <span class='hs-varid'>imm</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-865"></a> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span>
<a name="line-866"></a> <span class='hs-comment'>-- </span>
<a name="line-867"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-varid'>size</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-868"></a>
<a name="line-869"></a> <span class='hs-comment'>----------------------</span>
<a name="line-870"></a> <span class='hs-varid'>div_code</span> <span class='hs-varid'>width</span> <span class='hs-varid'>signed</span> <span class='hs-varid'>quotient</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-871"></a> <span class='hs-layout'>(</span><span class='hs-varid'>y_op</span><span class='hs-layout'>,</span> <span class='hs-varid'>y_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getRegOrMem</span> <span class='hs-varid'>y</span> <span class='hs-comment'>-- cannot be clobbered</span>
<a name="line-872"></a> <span class='hs-varid'>x_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAnyReg</span> <span class='hs-varid'>x</span>
<a name="line-873"></a> <span class='hs-keyword'>let</span>
<a name="line-874"></a> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>intSize</span> <span class='hs-varid'>width</span>
<a name="line-875"></a> <span class='hs-varid'>widen</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>signed</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CLTD</span> <span class='hs-varid'>size</span>
<a name="line-876"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>XOR</span> <span class='hs-varid'>size</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>edx</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>edx</span><span class='hs-layout'>)</span>
<a name="line-877"></a>
<a name="line-878"></a> <span class='hs-varid'>instr</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>signed</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>IDIV</span>
<a name="line-879"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DIV</span>
<a name="line-880"></a>
<a name="line-881"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>y_code</span> <span class='hs-varop'>`appOL`</span>
<a name="line-882"></a> <span class='hs-varid'>x_code</span> <span class='hs-varid'>eax</span> <span class='hs-varop'>`appOL`</span>
<a name="line-883"></a> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>widen</span><span class='hs-layout'>,</span> <span class='hs-varid'>instr</span> <span class='hs-varid'>size</span> <span class='hs-varid'>y_op</span><span class='hs-keyglyph'>]</span>
<a name="line-884"></a>
<a name="line-885"></a> <span class='hs-varid'>result</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>quotient</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>eax</span>
<a name="line-886"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>edx</span>
<a name="line-887"></a>
<a name="line-888"></a> <span class='hs-comment'>-- in</span>
<a name="line-889"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Fixed</span> <span class='hs-varid'>size</span> <span class='hs-varid'>result</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-890"></a>
<a name="line-891"></a>
<a name="line-892"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLoad</span> <span class='hs-varid'>mem</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span>
<a name="line-893"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isFloatType</span> <span class='hs-varid'>pk</span>
<a name="line-894"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-895"></a> <span class='hs-conid'>Amode</span> <span class='hs-varid'>src</span> <span class='hs-varid'>mem_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAmode</span> <span class='hs-varid'>mem</span>
<a name="line-896"></a> <span class='hs-keyword'>let</span>
<a name="line-897"></a> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cmmTypeSize</span> <span class='hs-varid'>pk</span>
<a name="line-898"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mem_code</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-899"></a> <span class='hs-conid'>IF_ARCH_i386</span><span class='hs-layout'>(</span><span class='hs-conid'>GLD</span> <span class='hs-varid'>size</span> <span class='hs-varid'>src</span> <span class='hs-varid'>dst</span><span class='hs-layout'>,</span>
<a name="line-900"></a> <span class='hs-conid'>MOV</span> <span class='hs-varid'>size</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-varid'>src</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-901"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-varid'>size</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-902"></a>
<a name="line-903"></a><span class='hs-cpp'>#if i386_TARGET_ARCH</span>
<a name="line-904"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLoad</span> <span class='hs-varid'>mem</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span>
<a name="line-905"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>isWord64</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span>
<a name="line-906"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-907"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>intLoadCode</span> <span class='hs-varid'>instr</span> <span class='hs-varid'>mem</span>
<a name="line-908"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-varid'>size</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-909"></a> <span class='hs-keyword'>where</span>
<a name="line-910"></a> <span class='hs-varid'>width</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>typeWidth</span> <span class='hs-varid'>pk</span>
<a name="line-911"></a> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>intSize</span> <span class='hs-varid'>width</span>
<a name="line-912"></a> <span class='hs-varid'>instr</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>width</span> <span class='hs-keyword'>of</span>
<a name="line-913"></a> <span class='hs-conid'>W8</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>MOVZxL</span> <span class='hs-conid'>II8</span>
<a name="line-914"></a> <span class='hs-sel'>_other</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>MOV</span> <span class='hs-varid'>size</span>
<a name="line-915"></a> <span class='hs-comment'>-- We always zero-extend 8-bit loads, if we</span>
<a name="line-916"></a> <span class='hs-comment'>-- can't think of anything better. This is because</span>
<a name="line-917"></a> <span class='hs-comment'>-- we can't guarantee access to an 8-bit variant of every register</span>
<a name="line-918"></a> <span class='hs-comment'>-- (esi and edi don't have 8-bit variants), so to make things</span>
<a name="line-919"></a> <span class='hs-comment'>-- simpler we do our 8-bit arithmetic with full 32-bit registers.</span>
<a name="line-920"></a><span class='hs-cpp'>#endif</span>
<a name="line-921"></a>
<a name="line-922"></a><span class='hs-cpp'>#if x86_64_TARGET_ARCH</span>
<a name="line-923"></a><span class='hs-comment'>-- Simpler memory load code on x86_64</span>
<a name="line-924"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLoad</span> <span class='hs-varid'>mem</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span>
<a name="line-925"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-926"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>intLoadCode</span> <span class='hs-layout'>(</span><span class='hs-conid'>MOV</span> <span class='hs-varid'>size</span><span class='hs-layout'>)</span> <span class='hs-varid'>mem</span>
<a name="line-927"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-varid'>size</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-928"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>intSize</span> <span class='hs-varop'>$</span> <span class='hs-varid'>typeWidth</span> <span class='hs-varid'>pk</span>
<a name="line-929"></a><span class='hs-cpp'>#endif</span>
<a name="line-930"></a>
<a name="line-931"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-num'>0</span> <span class='hs-varid'>width</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-932"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span>
<a name="line-933"></a> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>intSize</span> <span class='hs-varid'>width</span>
<a name="line-934"></a>
<a name="line-935"></a> <span class='hs-comment'>-- x86_64: 32-bit xor is one byte shorter, and zero-extends to 64 bits</span>
<a name="line-936"></a> <span class='hs-varid'>adj_size</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>size</span> <span class='hs-keyword'>of</span> <span class='hs-conid'>II64</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>II32</span><span class='hs-layout'>;</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>size</span>
<a name="line-937"></a> <span class='hs-varid'>size1</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>IF_ARCH_i386</span><span class='hs-layout'>(</span> <span class='hs-varid'>size</span><span class='hs-layout'>,</span> <span class='hs-varid'>adj_size</span> <span class='hs-layout'>)</span>
<a name="line-938"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span>
<a name="line-939"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unitOL</span> <span class='hs-layout'>(</span><span class='hs-conid'>XOR</span> <span class='hs-varid'>size1</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-940"></a> <span class='hs-keyword'>in</span>
<a name="line-941"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-varid'>size</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-942"></a>
<a name="line-943"></a><span class='hs-cpp'>#if x86_64_TARGET_ARCH</span>
<a name="line-944"></a> <span class='hs-comment'>-- optimisation for loading small literals on x86_64: take advantage</span>
<a name="line-945"></a> <span class='hs-comment'>-- of the automatic zero-extension from 32 to 64 bits, because the 32-bit</span>
<a name="line-946"></a> <span class='hs-comment'>-- instruction forms are shorter.</span>
<a name="line-947"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span>
<a name="line-948"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isWord64</span> <span class='hs-layout'>(</span><span class='hs-varid'>cmmLitType</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>isBigLit</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span>
<a name="line-949"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span>
<a name="line-950"></a> <span class='hs-varid'>imm</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>litToImm</span> <span class='hs-varid'>lit</span>
<a name="line-951"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unitOL</span> <span class='hs-layout'>(</span><span class='hs-conid'>MOV</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpImm</span> <span class='hs-varid'>imm</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-952"></a> <span class='hs-keyword'>in</span>
<a name="line-953"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-conid'>II64</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-954"></a> <span class='hs-keyword'>where</span>
<a name="line-955"></a> <span class='hs-varid'>isBigLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-varid'>i</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>i</span> <span class='hs-varop'><</span> <span class='hs-num'>0</span> <span class='hs-varop'>||</span> <span class='hs-varid'>i</span> <span class='hs-varop'>></span> <span class='hs-num'>0xffffffff</span>
<a name="line-956"></a> <span class='hs-varid'>isBigLit</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-957"></a> <span class='hs-comment'>-- note1: not the same as (not.is32BitLit), because that checks for</span>
<a name="line-958"></a> <span class='hs-comment'>-- signed literals that fit in 32 bits, but we want unsigned</span>
<a name="line-959"></a> <span class='hs-comment'>-- literals here.</span>
<a name="line-960"></a> <span class='hs-comment'>-- note2: all labels are small, because we're assuming the</span>
<a name="line-961"></a> <span class='hs-comment'>-- small memory model (see gcc docs, -mcmodel=small).</span>
<a name="line-962"></a><span class='hs-cpp'>#endif</span>
<a name="line-963"></a>
<a name="line-964"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span>
<a name="line-965"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span>
<a name="line-966"></a> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cmmTypeSize</span> <span class='hs-layout'>(</span><span class='hs-varid'>cmmLitType</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span>
<a name="line-967"></a> <span class='hs-varid'>imm</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>litToImm</span> <span class='hs-varid'>lit</span>
<a name="line-968"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unitOL</span> <span class='hs-layout'>(</span><span class='hs-conid'>MOV</span> <span class='hs-varid'>size</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpImm</span> <span class='hs-varid'>imm</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-969"></a> <span class='hs-keyword'>in</span>
<a name="line-970"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-varid'>size</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-971"></a>
<a name="line-972"></a><span class='hs-definition'>getRegister</span> <span class='hs-varid'>other</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pprPanic</span> <span class='hs-str'>"getRegister(x86)"</span> <span class='hs-layout'>(</span><span class='hs-varid'>ppr</span> <span class='hs-varid'>other</span><span class='hs-layout'>)</span>
<a name="line-973"></a>
<a name="line-974"></a>
<a name="line-975"></a><a name="intLoadCode"></a><span class='hs-definition'>intLoadCode</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Operand</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Operand</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Instr</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span>
<a name="line-976"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-layout'>(</span><span class='hs-conid'>Reg</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>InstrBlock</span><span class='hs-layout'>)</span>
<a name="line-977"></a><span class='hs-definition'>intLoadCode</span> <span class='hs-varid'>instr</span> <span class='hs-varid'>mem</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-978"></a> <span class='hs-conid'>Amode</span> <span class='hs-varid'>src</span> <span class='hs-varid'>mem_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAmode</span> <span class='hs-varid'>mem</span>
<a name="line-979"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>dst</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>mem_code</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-varid'>instr</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-varid'>src</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-980"></a>
<a name="line-981"></a><a name="getAnyReg"></a><span class='hs-comment'>-- Compute an expression into *any* register, adding the appropriate</span>
<a name="line-982"></a><span class='hs-comment'>-- move instruction if necessary.</span>
<a name="line-983"></a><span class='hs-definition'>getAnyReg</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-layout'>(</span><span class='hs-conid'>Reg</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>InstrBlock</span><span class='hs-layout'>)</span>
<a name="line-984"></a><span class='hs-definition'>getAnyReg</span> <span class='hs-varid'>expr</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-985"></a> <span class='hs-varid'>r</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getRegister</span> <span class='hs-varid'>expr</span>
<a name="line-986"></a> <span class='hs-varid'>anyReg</span> <span class='hs-varid'>r</span>
<a name="line-987"></a>
<a name="line-988"></a><a name="anyReg"></a><span class='hs-definition'>anyReg</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Register</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-layout'>(</span><span class='hs-conid'>Reg</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>InstrBlock</span><span class='hs-layout'>)</span>
<a name="line-989"></a><span class='hs-definition'>anyReg</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varid'>code</span>
<a name="line-990"></a><span class='hs-definition'>anyReg</span> <span class='hs-layout'>(</span><span class='hs-conid'>Fixed</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>fcode</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>dst</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fcode</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-varid'>reg2reg</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span>
<a name="line-991"></a>
<a name="line-992"></a><a name="getByteReg"></a><span class='hs-comment'>-- A bit like getSomeReg, but we want a reg that can be byte-addressed.</span>
<a name="line-993"></a><span class='hs-comment'>-- Fixed registers might not be byte-addressable, so we make sure we've</span>
<a name="line-994"></a><span class='hs-comment'>-- got a temporary, inserting an extra reg copy if necessary.</span>
<a name="line-995"></a><span class='hs-definition'>getByteReg</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-layout'>(</span><span class='hs-conid'>Reg</span><span class='hs-layout'>,</span> <span class='hs-conid'>InstrBlock</span><span class='hs-layout'>)</span>
<a name="line-996"></a><span class='hs-cpp'>#if x86_64_TARGET_ARCH</span>
<a name="line-997"></a><span class='hs-definition'>getByteReg</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-comment'>-- all regs are byte-addressable on x86_64</span>
<a name="line-998"></a><span class='hs-cpp'>#else</span>
<a name="line-999"></a><span class='hs-definition'>getByteReg</span> <span class='hs-varid'>expr</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1000"></a> <span class='hs-varid'>r</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getRegister</span> <span class='hs-varid'>expr</span>
<a name="line-1001"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>r</span> <span class='hs-keyword'>of</span>
<a name="line-1002"></a> <span class='hs-conid'>Any</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-1003"></a> <span class='hs-varid'>tmp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegNat</span> <span class='hs-varid'>rep</span>
<a name="line-1004"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>tmp</span><span class='hs-layout'>,</span> <span class='hs-varid'>code</span> <span class='hs-varid'>tmp</span><span class='hs-layout'>)</span>
<a name="line-1005"></a> <span class='hs-conid'>Fixed</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>code</span>
<a name="line-1006"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isVirtualReg</span> <span class='hs-varid'>reg</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>reg</span><span class='hs-layout'>,</span><span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-1007"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-1008"></a> <span class='hs-varid'>tmp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegNat</span> <span class='hs-varid'>rep</span>
<a name="line-1009"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>tmp</span><span class='hs-layout'>,</span> <span class='hs-varid'>code</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-varid'>reg2reg</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>tmp</span><span class='hs-layout'>)</span>
<a name="line-1010"></a> <span class='hs-comment'>-- ToDo: could optimise slightly by checking for byte-addressable</span>
<a name="line-1011"></a> <span class='hs-comment'>-- real registers, but that will happen very rarely if at all.</span>
<a name="line-1012"></a><span class='hs-cpp'>#endif</span>
<a name="line-1013"></a>
<a name="line-1014"></a><a name="getNonClobberedReg"></a><span class='hs-comment'>-- Another variant: this time we want the result in a register that cannot</span>
<a name="line-1015"></a><span class='hs-comment'>-- be modified by code to evaluate an arbitrary expression.</span>
<a name="line-1016"></a><span class='hs-definition'>getNonClobberedReg</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-layout'>(</span><span class='hs-conid'>Reg</span><span class='hs-layout'>,</span> <span class='hs-conid'>InstrBlock</span><span class='hs-layout'>)</span>
<a name="line-1017"></a><span class='hs-definition'>getNonClobberedReg</span> <span class='hs-varid'>expr</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1018"></a> <span class='hs-varid'>r</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getRegister</span> <span class='hs-varid'>expr</span>
<a name="line-1019"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>r</span> <span class='hs-keyword'>of</span>
<a name="line-1020"></a> <span class='hs-conid'>Any</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-1021"></a> <span class='hs-varid'>tmp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegNat</span> <span class='hs-varid'>rep</span>
<a name="line-1022"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>tmp</span><span class='hs-layout'>,</span> <span class='hs-varid'>code</span> <span class='hs-varid'>tmp</span><span class='hs-layout'>)</span>
<a name="line-1023"></a> <span class='hs-conid'>Fixed</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>code</span>
<a name="line-1024"></a> <span class='hs-comment'>-- only free regs can be clobbered</span>
<a name="line-1025"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>RegReal</span> <span class='hs-layout'>(</span><span class='hs-conid'>RealRegSingle</span> <span class='hs-varid'>rr</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>reg</span>
<a name="line-1026"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>isFastTrue</span> <span class='hs-layout'>(</span><span class='hs-varid'>freeReg</span> <span class='hs-varid'>rr</span><span class='hs-layout'>)</span>
<a name="line-1027"></a> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-1028"></a> <span class='hs-varid'>tmp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegNat</span> <span class='hs-varid'>rep</span>
<a name="line-1029"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>tmp</span><span class='hs-layout'>,</span> <span class='hs-varid'>code</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-varid'>reg2reg</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>tmp</span><span class='hs-layout'>)</span>
<a name="line-1030"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-></span>
<a name="line-1031"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-1032"></a>
<a name="line-1033"></a><a name="reg2reg"></a><span class='hs-definition'>reg2reg</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Size</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Reg</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Reg</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Instr</span>
<a name="line-1034"></a><span class='hs-definition'>reg2reg</span> <span class='hs-varid'>size</span> <span class='hs-varid'>src</span> <span class='hs-varid'>dst</span>
<a name="line-1035"></a><span class='hs-cpp'>#if i386_TARGET_ARCH</span>
<a name="line-1036"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isFloatSize</span> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>GMOV</span> <span class='hs-varid'>src</span> <span class='hs-varid'>dst</span>
<a name="line-1037"></a><span class='hs-cpp'>#endif</span>
<a name="line-1038"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>MOV</span> <span class='hs-varid'>size</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>src</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span>
<a name="line-1039"></a>
<a name="line-1040"></a>
<a name="line-1041"></a>
<a name="line-1042"></a><a name="getAmode"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-1043"></a><span class='hs-definition'>getAmode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>Amode</span>
<a name="line-1044"></a><span class='hs-definition'>getAmode</span> <span class='hs-varid'>tree</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>CmmRegOff</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getAmode</span> <span class='hs-layout'>(</span><span class='hs-varid'>mangleIndexTree</span> <span class='hs-varid'>tree</span><span class='hs-layout'>)</span>
<a name="line-1045"></a>
<a name="line-1046"></a><span class='hs-cpp'>#if x86_64_TARGET_ARCH</span>
<a name="line-1047"></a>
<a name="line-1048"></a><span class='hs-definition'>getAmode</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_Add</span> <span class='hs-conid'>W64</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmReg</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmGlobal</span> <span class='hs-conid'>PicBaseReg</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1049"></a> <span class='hs-conid'>CmmLit</span> <span class='hs-varid'>displacement</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-1050"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Amode</span> <span class='hs-layout'>(</span><span class='hs-varid'>ripRel</span> <span class='hs-layout'>(</span><span class='hs-varid'>litToImm</span> <span class='hs-varid'>displacement</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>nilOL</span>
<a name="line-1051"></a>
<a name="line-1052"></a><span class='hs-cpp'>#endif</span>
<a name="line-1053"></a>
<a name="line-1054"></a>
<a name="line-1055"></a><span class='hs-comment'>-- This is all just ridiculous, since it carefully undoes </span>
<a name="line-1056"></a><span class='hs-comment'>-- what mangleIndexTree has just done.</span>
<a name="line-1057"></a><span class='hs-definition'>getAmode</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_Sub</span> <span class='hs-varid'>rep</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-conid'>CmmLit</span> <span class='hs-varid'>lit</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-varid'>i</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-1058"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>is32BitLit</span> <span class='hs-varid'>lit</span>
<a name="line-1059"></a> <span class='hs-comment'>-- ASSERT(rep == II32)???</span>
<a name="line-1060"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-layout'>(</span><span class='hs-varid'>x_reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>x_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-varid'>x</span>
<a name="line-1061"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>off</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ImmInt</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-layout'>(</span><span class='hs-varid'>fromInteger</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1062"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Amode</span> <span class='hs-layout'>(</span><span class='hs-conid'>AddrBaseIndex</span> <span class='hs-layout'>(</span><span class='hs-conid'>EABaseReg</span> <span class='hs-varid'>x_reg</span><span class='hs-layout'>)</span> <span class='hs-conid'>EAIndexNone</span> <span class='hs-varid'>off</span><span class='hs-layout'>)</span> <span class='hs-varid'>x_code</span><span class='hs-layout'>)</span>
<a name="line-1063"></a>
<a name="line-1064"></a><span class='hs-definition'>getAmode</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_Add</span> <span class='hs-varid'>rep</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-conid'>CmmLit</span> <span class='hs-varid'>lit</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-varid'>i</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-1065"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>is32BitLit</span> <span class='hs-varid'>lit</span>
<a name="line-1066"></a> <span class='hs-comment'>-- ASSERT(rep == II32)???</span>
<a name="line-1067"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-layout'>(</span><span class='hs-varid'>x_reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>x_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-varid'>x</span>
<a name="line-1068"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>off</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ImmInt</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromInteger</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span>
<a name="line-1069"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Amode</span> <span class='hs-layout'>(</span><span class='hs-conid'>AddrBaseIndex</span> <span class='hs-layout'>(</span><span class='hs-conid'>EABaseReg</span> <span class='hs-varid'>x_reg</span><span class='hs-layout'>)</span> <span class='hs-conid'>EAIndexNone</span> <span class='hs-varid'>off</span><span class='hs-layout'>)</span> <span class='hs-varid'>x_code</span><span class='hs-layout'>)</span>
<a name="line-1070"></a>
<a name="line-1071"></a><span class='hs-comment'>-- Turn (lit1 << n + lit2) into (lit2 + lit1 << n) so it will be </span>
<a name="line-1072"></a><span class='hs-comment'>-- recognised by the next rule.</span>
<a name="line-1073"></a><span class='hs-definition'>getAmode</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_Add</span> <span class='hs-varid'>rep</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_Shl</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1074"></a> <span class='hs-varid'>b</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-1075"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getAmode</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_Add</span> <span class='hs-varid'>rep</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>b</span><span class='hs-layout'>,</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-1076"></a>
<a name="line-1077"></a><span class='hs-definition'>getAmode</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_Add</span> <span class='hs-varid'>rep</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_Shl</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span>
<a name="line-1078"></a> <span class='hs-keyglyph'>[</span><span class='hs-varid'>y</span><span class='hs-layout'>,</span> <span class='hs-conid'>CmmLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-varid'>shift</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-1079"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>shift</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-varop'>||</span> <span class='hs-varid'>shift</span> <span class='hs-varop'>==</span> <span class='hs-num'>1</span> <span class='hs-varop'>||</span> <span class='hs-varid'>shift</span> <span class='hs-varop'>==</span> <span class='hs-num'>2</span> <span class='hs-varop'>||</span> <span class='hs-varid'>shift</span> <span class='hs-varop'>==</span> <span class='hs-num'>3</span>
<a name="line-1080"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x86_complex_amode</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-varid'>shift</span> <span class='hs-num'>0</span>
<a name="line-1081"></a>
<a name="line-1082"></a><span class='hs-definition'>getAmode</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_Add</span> <span class='hs-varid'>rep</span><span class='hs-layout'>)</span>
<a name="line-1083"></a> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_Add</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span>
<a name="line-1084"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_Shl</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>y</span><span class='hs-layout'>,</span> <span class='hs-conid'>CmmLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-varid'>shift</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span>
<a name="line-1085"></a> <span class='hs-conid'>CmmLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-varid'>offset</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-1086"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>shift</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-varop'>||</span> <span class='hs-varid'>shift</span> <span class='hs-varop'>==</span> <span class='hs-num'>1</span> <span class='hs-varop'>||</span> <span class='hs-varid'>shift</span> <span class='hs-varop'>==</span> <span class='hs-num'>2</span> <span class='hs-varop'>||</span> <span class='hs-varid'>shift</span> <span class='hs-varop'>==</span> <span class='hs-num'>3</span>
<a name="line-1087"></a> <span class='hs-varop'>&&</span> <span class='hs-varid'>is32BitInteger</span> <span class='hs-varid'>offset</span>
<a name="line-1088"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x86_complex_amode</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-varid'>shift</span> <span class='hs-varid'>offset</span>
<a name="line-1089"></a>
<a name="line-1090"></a><span class='hs-definition'>getAmode</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_Add</span> <span class='hs-varid'>rep</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span><span class='hs-varid'>y</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-1091"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x86_complex_amode</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-num'>0</span> <span class='hs-num'>0</span>
<a name="line-1092"></a>
<a name="line-1093"></a><span class='hs-definition'>getAmode</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>is32BitLit</span> <span class='hs-varid'>lit</span>
<a name="line-1094"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Amode</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmAddr</span> <span class='hs-layout'>(</span><span class='hs-varid'>litToImm</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span> <span class='hs-varid'>nilOL</span><span class='hs-layout'>)</span>
<a name="line-1095"></a>
<a name="line-1096"></a><span class='hs-definition'>getAmode</span> <span class='hs-varid'>expr</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1097"></a> <span class='hs-layout'>(</span><span class='hs-varid'>reg</span><span class='hs-layout'>,</span><span class='hs-varid'>code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-varid'>expr</span>
<a name="line-1098"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Amode</span> <span class='hs-layout'>(</span><span class='hs-conid'>AddrBaseIndex</span> <span class='hs-layout'>(</span><span class='hs-conid'>EABaseReg</span> <span class='hs-varid'>reg</span><span class='hs-layout'>)</span> <span class='hs-conid'>EAIndexNone</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-1099"></a>
<a name="line-1100"></a>
<a name="line-1101"></a><a name="x86_complex_amode"></a><span class='hs-definition'>x86_complex_amode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Integer</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Integer</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>Amode</span>
<a name="line-1102"></a><span class='hs-definition'>x86_complex_amode</span> <span class='hs-varid'>base</span> <span class='hs-varid'>index</span> <span class='hs-varid'>shift</span> <span class='hs-varid'>offset</span>
<a name="line-1103"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-layout'>(</span><span class='hs-varid'>x_reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>x_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNonClobberedReg</span> <span class='hs-varid'>base</span>
<a name="line-1104"></a> <span class='hs-comment'>-- x must be in a temp, because it has to stay live over y_code</span>
<a name="line-1105"></a> <span class='hs-comment'>-- we could compre x_reg and y_reg and do something better here...</span>
<a name="line-1106"></a> <span class='hs-layout'>(</span><span class='hs-varid'>y_reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>y_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-varid'>index</span>
<a name="line-1107"></a> <span class='hs-keyword'>let</span>
<a name="line-1108"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x_code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>y_code</span>
<a name="line-1109"></a> <span class='hs-varid'>base</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>shift</span> <span class='hs-keyword'>of</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>1</span><span class='hs-layout'>;</span> <span class='hs-num'>1</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>2</span><span class='hs-layout'>;</span> <span class='hs-num'>2</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>4</span><span class='hs-layout'>;</span> <span class='hs-num'>3</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>8</span>
<a name="line-1110"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Amode</span> <span class='hs-layout'>(</span><span class='hs-conid'>AddrBaseIndex</span> <span class='hs-layout'>(</span><span class='hs-conid'>EABaseReg</span> <span class='hs-varid'>x_reg</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>EAIndex</span> <span class='hs-varid'>y_reg</span> <span class='hs-varid'>base</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>offset</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1111"></a> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-1112"></a>
<a name="line-1113"></a>
<a name="line-1114"></a>
<a name="line-1115"></a>
<a name="line-1116"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-1117"></a><span class='hs-comment'>-- getOperand: sometimes any operand will do.</span>
<a name="line-1118"></a>
<a name="line-1119"></a><span class='hs-comment'>-- getNonClobberedOperand: the value of the operand will remain valid across</span>
<a name="line-1120"></a><span class='hs-comment'>-- the computation of an arbitrary expression, unless the expression</span>
<a name="line-1121"></a><span class='hs-comment'>-- is computed directly into a register which the operand refers to</span>
<a name="line-1122"></a><span class='hs-comment'>-- (see trivialCode where this function is used for an example).</span>
<a name="line-1123"></a>
<a name="line-1124"></a><a name="getNonClobberedOperand"></a><span class='hs-definition'>getNonClobberedOperand</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-layout'>(</span><span class='hs-conid'>Operand</span><span class='hs-layout'>,</span> <span class='hs-conid'>InstrBlock</span><span class='hs-layout'>)</span>
<a name="line-1125"></a><span class='hs-cpp'>#if x86_64_TARGET_ARCH</span>
<a name="line-1126"></a><span class='hs-definition'>getNonClobberedOperand</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span>
<a name="line-1127"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isSuitableFloatingPointLit</span> <span class='hs-varid'>lit</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1128"></a> <span class='hs-varid'>lbl</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewLabelNat</span>
<a name="line-1129"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unitOL</span> <span class='hs-layout'>(</span><span class='hs-conid'>LDATA</span> <span class='hs-conid'>ReadOnlyData</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmDataLabel</span> <span class='hs-varid'>lbl</span><span class='hs-layout'>,</span>
<a name="line-1130"></a> <span class='hs-conid'>CmmStaticLit</span> <span class='hs-varid'>lit</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-1131"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-layout'>(</span><span class='hs-varid'>ripRel</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmCLbl</span> <span class='hs-varid'>lbl</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-1132"></a><span class='hs-cpp'>#endif</span>
<a name="line-1133"></a><span class='hs-definition'>getNonClobberedOperand</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span>
<a name="line-1134"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>is32BitLit</span> <span class='hs-varid'>lit</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>isFloatType</span> <span class='hs-layout'>(</span><span class='hs-varid'>cmmLitType</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-1135"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpImm</span> <span class='hs-layout'>(</span><span class='hs-varid'>litToImm</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>nilOL</span><span class='hs-layout'>)</span>
<a name="line-1136"></a><span class='hs-definition'>getNonClobberedOperand</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLoad</span> <span class='hs-varid'>mem</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span>
<a name="line-1137"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>IF_ARCH_i386</span><span class='hs-layout'>(</span><span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>isFloatType</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>isWord64</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1138"></a> <span class='hs-conid'>Amode</span> <span class='hs-varid'>src</span> <span class='hs-varid'>mem_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAmode</span> <span class='hs-varid'>mem</span>
<a name="line-1139"></a> <span class='hs-layout'>(</span><span class='hs-varid'>src'</span><span class='hs-layout'>,</span><span class='hs-varid'>save_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span>
<a name="line-1140"></a> <span class='hs-keyword'>if</span> <span class='hs-layout'>(</span><span class='hs-varid'>amodeCouldBeClobbered</span> <span class='hs-varid'>src</span><span class='hs-layout'>)</span>
<a name="line-1141"></a> <span class='hs-keyword'>then</span> <span class='hs-keyword'>do</span>
<a name="line-1142"></a> <span class='hs-varid'>tmp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegNat</span> <span class='hs-varid'>archWordSize</span>
<a name="line-1143"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>AddrBaseIndex</span> <span class='hs-layout'>(</span><span class='hs-conid'>EABaseReg</span> <span class='hs-varid'>tmp</span><span class='hs-layout'>)</span> <span class='hs-conid'>EAIndexNone</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1144"></a> <span class='hs-varid'>unitOL</span> <span class='hs-layout'>(</span><span class='hs-conid'>LEA</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-varid'>src</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tmp</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1145"></a> <span class='hs-keyword'>else</span>
<a name="line-1146"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>src</span><span class='hs-layout'>,</span> <span class='hs-varid'>nilOL</span><span class='hs-layout'>)</span>
<a name="line-1147"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-varid'>src'</span><span class='hs-layout'>,</span> <span class='hs-varid'>save_code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>mem_code</span><span class='hs-layout'>)</span>
<a name="line-1148"></a><span class='hs-definition'>getNonClobberedOperand</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1149"></a> <span class='hs-layout'>(</span><span class='hs-varid'>reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNonClobberedReg</span> <span class='hs-varid'>e</span>
<a name="line-1150"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-1151"></a>
<a name="line-1152"></a><a name="amodeCouldBeClobbered"></a><span class='hs-definition'>amodeCouldBeClobbered</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AddrMode</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-1153"></a><span class='hs-definition'>amodeCouldBeClobbered</span> <span class='hs-varid'>amode</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>any</span> <span class='hs-varid'>regClobbered</span> <span class='hs-layout'>(</span><span class='hs-varid'>addrModeRegs</span> <span class='hs-varid'>amode</span><span class='hs-layout'>)</span>
<a name="line-1154"></a>
<a name="line-1155"></a><a name="regClobbered"></a><span class='hs-definition'>regClobbered</span> <span class='hs-layout'>(</span><span class='hs-conid'>RegReal</span> <span class='hs-layout'>(</span><span class='hs-conid'>RealRegSingle</span> <span class='hs-varid'>rr</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>isFastTrue</span> <span class='hs-layout'>(</span><span class='hs-varid'>freeReg</span> <span class='hs-varid'>rr</span><span class='hs-layout'>)</span>
<a name="line-1156"></a><span class='hs-definition'>regClobbered</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-1157"></a>
<a name="line-1158"></a><a name="getOperand"></a><span class='hs-comment'>-- getOperand: the operand is not required to remain valid across the</span>
<a name="line-1159"></a><span class='hs-comment'>-- computation of an arbitrary expression.</span>
<a name="line-1160"></a><span class='hs-definition'>getOperand</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-layout'>(</span><span class='hs-conid'>Operand</span><span class='hs-layout'>,</span> <span class='hs-conid'>InstrBlock</span><span class='hs-layout'>)</span>
<a name="line-1161"></a><span class='hs-cpp'>#if x86_64_TARGET_ARCH</span>
<a name="line-1162"></a><span class='hs-definition'>getOperand</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span>
<a name="line-1163"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isSuitableFloatingPointLit</span> <span class='hs-varid'>lit</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1164"></a> <span class='hs-varid'>lbl</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewLabelNat</span>
<a name="line-1165"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unitOL</span> <span class='hs-layout'>(</span><span class='hs-conid'>LDATA</span> <span class='hs-conid'>ReadOnlyData</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmDataLabel</span> <span class='hs-varid'>lbl</span><span class='hs-layout'>,</span>
<a name="line-1166"></a> <span class='hs-conid'>CmmStaticLit</span> <span class='hs-varid'>lit</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-1167"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-layout'>(</span><span class='hs-varid'>ripRel</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmCLbl</span> <span class='hs-varid'>lbl</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-1168"></a><span class='hs-cpp'>#endif</span>
<a name="line-1169"></a><span class='hs-definition'>getOperand</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span>
<a name="line-1170"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>is32BitLit</span> <span class='hs-varid'>lit</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>isFloatType</span> <span class='hs-layout'>(</span><span class='hs-varid'>cmmLitType</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1171"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpImm</span> <span class='hs-layout'>(</span><span class='hs-varid'>litToImm</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>nilOL</span><span class='hs-layout'>)</span>
<a name="line-1172"></a><span class='hs-definition'>getOperand</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLoad</span> <span class='hs-varid'>mem</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span>
<a name="line-1173"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>IF_ARCH_i386</span><span class='hs-layout'>(</span><span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>isFloatType</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>isWord64</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1174"></a> <span class='hs-conid'>Amode</span> <span class='hs-varid'>src</span> <span class='hs-varid'>mem_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAmode</span> <span class='hs-varid'>mem</span>
<a name="line-1175"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-varid'>src</span><span class='hs-layout'>,</span> <span class='hs-varid'>mem_code</span><span class='hs-layout'>)</span>
<a name="line-1176"></a><span class='hs-definition'>getOperand</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1177"></a> <span class='hs-layout'>(</span><span class='hs-varid'>reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-varid'>e</span>
<a name="line-1178"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-1179"></a>
<a name="line-1180"></a><a name="isOperand"></a><span class='hs-definition'>isOperand</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-1181"></a><span class='hs-definition'>isOperand</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLoad</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-1182"></a><span class='hs-definition'>isOperand</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>is32BitLit</span> <span class='hs-varid'>lit</span>
<a name="line-1183"></a> <span class='hs-varop'>||</span> <span class='hs-varid'>isSuitableFloatingPointLit</span> <span class='hs-varid'>lit</span>
<a name="line-1184"></a><span class='hs-definition'>isOperand</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-1185"></a>
<a name="line-1186"></a><a name="isSuitableFloatingPointLit"></a><span class='hs-comment'>-- if we want a floating-point literal as an operand, we can</span>
<a name="line-1187"></a><span class='hs-comment'>-- use it directly from memory. However, if the literal is</span>
<a name="line-1188"></a><span class='hs-comment'>-- zero, we're better off generating it into a register using</span>
<a name="line-1189"></a><span class='hs-comment'>-- xor.</span>
<a name="line-1190"></a><span class='hs-definition'>isSuitableFloatingPointLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmFloat</span> <span class='hs-varid'>f</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-varop'>/=</span> <span class='hs-num'>0.0</span>
<a name="line-1191"></a><span class='hs-definition'>isSuitableFloatingPointLit</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-1192"></a>
<a name="line-1193"></a><a name="getRegOrMem"></a><span class='hs-definition'>getRegOrMem</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-layout'>(</span><span class='hs-conid'>Operand</span><span class='hs-layout'>,</span> <span class='hs-conid'>InstrBlock</span><span class='hs-layout'>)</span>
<a name="line-1194"></a><span class='hs-definition'>getRegOrMem</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLoad</span> <span class='hs-varid'>mem</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span>
<a name="line-1195"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>IF_ARCH_i386</span><span class='hs-layout'>(</span><span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>isFloatType</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>isWord64</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1196"></a> <span class='hs-conid'>Amode</span> <span class='hs-varid'>src</span> <span class='hs-varid'>mem_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAmode</span> <span class='hs-varid'>mem</span>
<a name="line-1197"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-varid'>src</span><span class='hs-layout'>,</span> <span class='hs-varid'>mem_code</span><span class='hs-layout'>)</span>
<a name="line-1198"></a><span class='hs-definition'>getRegOrMem</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1199"></a> <span class='hs-layout'>(</span><span class='hs-varid'>reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNonClobberedReg</span> <span class='hs-varid'>e</span>
<a name="line-1200"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-1201"></a>
<a name="line-1202"></a><span class='hs-cpp'>#if x86_64_TARGET_ARCH</span>
<a name="line-1203"></a><a name="is32BitLit"></a><span class='hs-definition'>is32BitLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-varid'>i</span> <span class='hs-conid'>W64</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>is32BitInteger</span> <span class='hs-varid'>i</span>
<a name="line-1204"></a> <span class='hs-comment'>-- assume that labels are in the range 0-2^31-1: this assumes the</span>
<a name="line-1205"></a> <span class='hs-comment'>-- small memory model (see gcc docs, -mcmodel=small).</span>
<a name="line-1206"></a><span class='hs-cpp'>#endif</span>
<a name="line-1207"></a><span class='hs-definition'>is32BitLit</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-1208"></a>
<a name="line-1209"></a>
<a name="line-1210"></a>
<a name="line-1211"></a>
<a name="line-1212"></a><span class='hs-comment'>-- Set up a condition code for a conditional branch.</span>
<a name="line-1213"></a>
<a name="line-1214"></a><a name="getCondCode"></a><span class='hs-definition'>getCondCode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>CondCode</span>
<a name="line-1215"></a>
<a name="line-1216"></a><span class='hs-comment'>-- yes, they really do seem to want exactly the same!</span>
<a name="line-1217"></a>
<a name="line-1218"></a><span class='hs-definition'>getCondCode</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-varid'>mop</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-varid'>y</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-1219"></a> <span class='hs-keyglyph'>=</span>
<a name="line-1220"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>mop</span> <span class='hs-keyword'>of</span>
<a name="line-1221"></a> <span class='hs-conid'>MO_F_Eq</span> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condFltCode</span> <span class='hs-conid'>EQQ</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-1222"></a> <span class='hs-conid'>MO_F_Ne</span> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condFltCode</span> <span class='hs-conid'>NE</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-1223"></a> <span class='hs-conid'>MO_F_Gt</span> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condFltCode</span> <span class='hs-conid'>GTT</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-1224"></a> <span class='hs-conid'>MO_F_Ge</span> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condFltCode</span> <span class='hs-conid'>GE</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-1225"></a> <span class='hs-conid'>MO_F_Lt</span> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condFltCode</span> <span class='hs-conid'>LTT</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-1226"></a> <span class='hs-conid'>MO_F_Le</span> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condFltCode</span> <span class='hs-conid'>LE</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-1227"></a>
<a name="line-1228"></a> <span class='hs-conid'>MO_F_Eq</span> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condFltCode</span> <span class='hs-conid'>EQQ</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-1229"></a> <span class='hs-conid'>MO_F_Ne</span> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condFltCode</span> <span class='hs-conid'>NE</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-1230"></a> <span class='hs-conid'>MO_F_Gt</span> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condFltCode</span> <span class='hs-conid'>GTT</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-1231"></a> <span class='hs-conid'>MO_F_Ge</span> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condFltCode</span> <span class='hs-conid'>GE</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-1232"></a> <span class='hs-conid'>MO_F_Lt</span> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condFltCode</span> <span class='hs-conid'>LTT</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-1233"></a> <span class='hs-conid'>MO_F_Le</span> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condFltCode</span> <span class='hs-conid'>LE</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-1234"></a>
<a name="line-1235"></a> <span class='hs-conid'>MO_Eq</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condIntCode</span> <span class='hs-conid'>EQQ</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-1236"></a> <span class='hs-conid'>MO_Ne</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condIntCode</span> <span class='hs-conid'>NE</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-1237"></a>
<a name="line-1238"></a> <span class='hs-conid'>MO_S_Gt</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condIntCode</span> <span class='hs-conid'>GTT</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-1239"></a> <span class='hs-conid'>MO_S_Ge</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condIntCode</span> <span class='hs-conid'>GE</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-1240"></a> <span class='hs-conid'>MO_S_Lt</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condIntCode</span> <span class='hs-conid'>LTT</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-1241"></a> <span class='hs-conid'>MO_S_Le</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condIntCode</span> <span class='hs-conid'>LE</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-1242"></a>
<a name="line-1243"></a> <span class='hs-conid'>MO_U_Gt</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condIntCode</span> <span class='hs-conid'>GU</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-1244"></a> <span class='hs-conid'>MO_U_Ge</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condIntCode</span> <span class='hs-conid'>GEU</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-1245"></a> <span class='hs-conid'>MO_U_Lt</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condIntCode</span> <span class='hs-conid'>LU</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-1246"></a> <span class='hs-conid'>MO_U_Le</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>condIntCode</span> <span class='hs-conid'>LEU</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-1247"></a>
<a name="line-1248"></a> <span class='hs-varid'>other</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>pprPanic</span> <span class='hs-str'>"getCondCode(x86,x86_64,sparc)"</span> <span class='hs-layout'>(</span><span class='hs-varid'>ppr</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-varid'>mop</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span><span class='hs-varid'>y</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1249"></a>
<a name="line-1250"></a><span class='hs-definition'>getCondCode</span> <span class='hs-varid'>other</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pprPanic</span> <span class='hs-str'>"getCondCode(2)(x86,sparc)"</span> <span class='hs-layout'>(</span><span class='hs-varid'>ppr</span> <span class='hs-varid'>other</span><span class='hs-layout'>)</span>
<a name="line-1251"></a>
<a name="line-1252"></a>
<a name="line-1253"></a>
<a name="line-1254"></a>
<a name="line-1255"></a><span class='hs-comment'>-- @cond(Int|Flt)Code@: Turn a boolean expression into a condition, to be</span>
<a name="line-1256"></a><span class='hs-comment'>-- passed back up the tree.</span>
<a name="line-1257"></a>
<a name="line-1258"></a><a name="condIntCode"></a><span class='hs-definition'>condIntCode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Cond</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>CondCode</span>
<a name="line-1259"></a>
<a name="line-1260"></a><span class='hs-comment'>-- memory vs immediate</span>
<a name="line-1261"></a><span class='hs-definition'>condIntCode</span> <span class='hs-varid'>cond</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLoad</span> <span class='hs-varid'>x</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>is32BitLit</span> <span class='hs-varid'>lit</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1262"></a> <span class='hs-conid'>Amode</span> <span class='hs-varid'>x_addr</span> <span class='hs-varid'>x_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAmode</span> <span class='hs-varid'>x</span>
<a name="line-1263"></a> <span class='hs-keyword'>let</span>
<a name="line-1264"></a> <span class='hs-varid'>imm</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>litToImm</span> <span class='hs-varid'>lit</span>
<a name="line-1265"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x_code</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-1266"></a> <span class='hs-conid'>CMP</span> <span class='hs-layout'>(</span><span class='hs-varid'>cmmTypeSize</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpImm</span> <span class='hs-varid'>imm</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-varid'>x_addr</span><span class='hs-layout'>)</span>
<a name="line-1267"></a> <span class='hs-comment'>--</span>
<a name="line-1268"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>CondCode</span> <span class='hs-conid'>False</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-1269"></a>
<a name="line-1270"></a><span class='hs-comment'>-- anything vs zero, using a mask</span>
<a name="line-1271"></a><span class='hs-comment'>-- TODO: Add some sanity checking!!!!</span>
<a name="line-1272"></a><span class='hs-definition'>condIntCode</span> <span class='hs-varid'>cond</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_And</span> <span class='hs-varid'>rep</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span><span class='hs-varid'>o2</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-num'>0</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1273"></a> <span class='hs-keyglyph'>|</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-varid'>lit</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-varid'>mask</span> <span class='hs-varid'>pk2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>o2</span><span class='hs-layout'>,</span> <span class='hs-varid'>is32BitLit</span> <span class='hs-varid'>lit</span>
<a name="line-1274"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1275"></a> <span class='hs-layout'>(</span><span class='hs-varid'>x_reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>x_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-varid'>x</span>
<a name="line-1276"></a> <span class='hs-keyword'>let</span>
<a name="line-1277"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x_code</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-1278"></a> <span class='hs-conid'>TEST</span> <span class='hs-layout'>(</span><span class='hs-varid'>intSize</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpImm</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInteger</span> <span class='hs-varid'>mask</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>x_reg</span><span class='hs-layout'>)</span>
<a name="line-1279"></a> <span class='hs-comment'>--</span>
<a name="line-1280"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>CondCode</span> <span class='hs-conid'>False</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-1281"></a>
<a name="line-1282"></a><span class='hs-comment'>-- anything vs zero</span>
<a name="line-1283"></a><span class='hs-definition'>condIntCode</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-num'>0</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1284"></a> <span class='hs-layout'>(</span><span class='hs-varid'>x_reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>x_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-varid'>x</span>
<a name="line-1285"></a> <span class='hs-keyword'>let</span>
<a name="line-1286"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x_code</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-1287"></a> <span class='hs-conid'>TEST</span> <span class='hs-layout'>(</span><span class='hs-varid'>intSize</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>x_reg</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>x_reg</span><span class='hs-layout'>)</span>
<a name="line-1288"></a> <span class='hs-comment'>--</span>
<a name="line-1289"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>CondCode</span> <span class='hs-conid'>False</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-1290"></a>
<a name="line-1291"></a><span class='hs-comment'>-- anything vs operand</span>
<a name="line-1292"></a><span class='hs-definition'>condIntCode</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isOperand</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1293"></a> <span class='hs-layout'>(</span><span class='hs-varid'>x_reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>x_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNonClobberedReg</span> <span class='hs-varid'>x</span>
<a name="line-1294"></a> <span class='hs-layout'>(</span><span class='hs-varid'>y_op</span><span class='hs-layout'>,</span> <span class='hs-varid'>y_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getOperand</span> <span class='hs-varid'>y</span>
<a name="line-1295"></a> <span class='hs-keyword'>let</span>
<a name="line-1296"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x_code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>y_code</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-1297"></a> <span class='hs-conid'>CMP</span> <span class='hs-layout'>(</span><span class='hs-varid'>cmmTypeSize</span> <span class='hs-layout'>(</span><span class='hs-varid'>cmmExprType</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>y_op</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>x_reg</span><span class='hs-layout'>)</span>
<a name="line-1298"></a> <span class='hs-comment'>-- in</span>
<a name="line-1299"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>CondCode</span> <span class='hs-conid'>False</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-1300"></a>
<a name="line-1301"></a><span class='hs-comment'>-- anything vs anything</span>
<a name="line-1302"></a><span class='hs-definition'>condIntCode</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1303"></a> <span class='hs-layout'>(</span><span class='hs-varid'>y_reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>y_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNonClobberedReg</span> <span class='hs-varid'>y</span>
<a name="line-1304"></a> <span class='hs-layout'>(</span><span class='hs-varid'>x_op</span><span class='hs-layout'>,</span> <span class='hs-varid'>x_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getRegOrMem</span> <span class='hs-varid'>x</span>
<a name="line-1305"></a> <span class='hs-keyword'>let</span>
<a name="line-1306"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>y_code</span> <span class='hs-varop'>`appOL`</span>
<a name="line-1307"></a> <span class='hs-varid'>x_code</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-1308"></a> <span class='hs-conid'>CMP</span> <span class='hs-layout'>(</span><span class='hs-varid'>cmmTypeSize</span> <span class='hs-layout'>(</span><span class='hs-varid'>cmmExprType</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>y_reg</span><span class='hs-layout'>)</span> <span class='hs-varid'>x_op</span>
<a name="line-1309"></a> <span class='hs-comment'>-- in</span>
<a name="line-1310"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>CondCode</span> <span class='hs-conid'>False</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-1311"></a>
<a name="line-1312"></a>
<a name="line-1313"></a>
<a name="line-1314"></a><a name="condFltCode"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-1315"></a><span class='hs-definition'>condFltCode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Cond</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>CondCode</span>
<a name="line-1316"></a>
<a name="line-1317"></a><span class='hs-cpp'>#if i386_TARGET_ARCH</span>
<a name="line-1318"></a><span class='hs-definition'>condFltCode</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-1319"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ASSERT</span><span class='hs-layout'>(</span><span class='hs-varid'>cond</span> <span class='hs-varop'>`elem`</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-conid'>EQQ</span><span class='hs-layout'>,</span> <span class='hs-conid'>NE</span><span class='hs-layout'>,</span> <span class='hs-conid'>LE</span><span class='hs-layout'>,</span> <span class='hs-conid'>LTT</span><span class='hs-layout'>,</span> <span class='hs-conid'>GE</span><span class='hs-layout'>,</span> <span class='hs-conid'>GTT</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyword'>do</span>
<a name="line-1320"></a> <span class='hs-layout'>(</span><span class='hs-varid'>x_reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>x_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNonClobberedReg</span> <span class='hs-varid'>x</span>
<a name="line-1321"></a> <span class='hs-layout'>(</span><span class='hs-varid'>y_reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>y_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-varid'>y</span>
<a name="line-1322"></a> <span class='hs-keyword'>let</span>
<a name="line-1323"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x_code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>y_code</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-1324"></a> <span class='hs-conid'>GCMP</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>x_reg</span> <span class='hs-varid'>y_reg</span>
<a name="line-1325"></a> <span class='hs-comment'>-- The GCMP insn does the test and sets the zero flag if comparable</span>
<a name="line-1326"></a> <span class='hs-comment'>-- and true. Hence we always supply EQQ as the condition to test.</span>
<a name="line-1327"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>CondCode</span> <span class='hs-conid'>True</span> <span class='hs-conid'>EQQ</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-1328"></a>
<a name="line-1329"></a><span class='hs-cpp'>#elif x86_64_TARGET_ARCH</span>
<a name="line-1330"></a><span class='hs-comment'>-- in the SSE2 comparison ops (ucomiss, ucomisd) the left arg may be</span>
<a name="line-1331"></a><span class='hs-comment'>-- an operand, but the right must be a reg. We can probably do better</span>
<a name="line-1332"></a><span class='hs-comment'>-- than this general case...</span>
<a name="line-1333"></a><span class='hs-definition'>condFltCode</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1334"></a> <span class='hs-layout'>(</span><span class='hs-varid'>x_reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>x_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNonClobberedReg</span> <span class='hs-varid'>x</span>
<a name="line-1335"></a> <span class='hs-layout'>(</span><span class='hs-varid'>y_op</span><span class='hs-layout'>,</span> <span class='hs-varid'>y_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getOperand</span> <span class='hs-varid'>y</span>
<a name="line-1336"></a> <span class='hs-keyword'>let</span>
<a name="line-1337"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x_code</span> <span class='hs-varop'>`appOL`</span>
<a name="line-1338"></a> <span class='hs-varid'>y_code</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-1339"></a> <span class='hs-conid'>CMP</span> <span class='hs-layout'>(</span><span class='hs-varid'>floatSize</span> <span class='hs-varop'>$</span> <span class='hs-varid'>cmmExprWidth</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varid'>y_op</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>x_reg</span><span class='hs-layout'>)</span>
<a name="line-1340"></a> <span class='hs-comment'>-- NB(1): we need to use the unsigned comparison operators on the</span>
<a name="line-1341"></a> <span class='hs-comment'>-- result of this comparison.</span>
<a name="line-1342"></a> <span class='hs-comment'>-- in</span>
<a name="line-1343"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>CondCode</span> <span class='hs-conid'>True</span> <span class='hs-layout'>(</span><span class='hs-varid'>condToUnsigned</span> <span class='hs-varid'>cond</span><span class='hs-layout'>)</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-1344"></a>
<a name="line-1345"></a><span class='hs-cpp'>#else</span>
<a name="line-1346"></a><span class='hs-definition'>condFltCode</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>panic</span> <span class='hs-str'>"X86.condFltCode: not defined"</span>
<a name="line-1347"></a>
<a name="line-1348"></a><span class='hs-cpp'>#endif</span>
<a name="line-1349"></a>
<a name="line-1350"></a>
<a name="line-1351"></a>
<a name="line-1352"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-1353"></a><span class='hs-comment'>-- Generating assignments</span>
<a name="line-1354"></a>
<a name="line-1355"></a><span class='hs-comment'>-- Assignments are really at the heart of the whole code generation</span>
<a name="line-1356"></a><span class='hs-comment'>-- business. Almost all top-level nodes of any real importance are</span>
<a name="line-1357"></a><span class='hs-comment'>-- assignments, which correspond to loads, stores, or register</span>
<a name="line-1358"></a><span class='hs-comment'>-- transfers. If we're really lucky, some of the register transfers</span>
<a name="line-1359"></a><span class='hs-comment'>-- will go away, because we can use the destination register to</span>
<a name="line-1360"></a><span class='hs-comment'>-- complete the code generation for the right hand side. This only</span>
<a name="line-1361"></a><span class='hs-comment'>-- fails when the right hand side is forced into a fixed register</span>
<a name="line-1362"></a><span class='hs-comment'>-- (e.g. the result of a call).</span>
<a name="line-1363"></a>
<a name="line-1364"></a><a name="assignMem_IntCode"></a><span class='hs-definition'>assignMem_IntCode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Size</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>InstrBlock</span>
<a name="line-1365"></a><a name="assignReg_IntCode"></a><span class='hs-definition'>assignReg_IntCode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Size</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmReg</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>InstrBlock</span>
<a name="line-1366"></a>
<a name="line-1367"></a><a name="assignMem_FltCode"></a><span class='hs-definition'>assignMem_FltCode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Size</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>InstrBlock</span>
<a name="line-1368"></a><a name="assignReg_FltCode"></a><span class='hs-definition'>assignReg_FltCode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Size</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmReg</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>InstrBlock</span>
<a name="line-1369"></a>
<a name="line-1370"></a>
<a name="line-1371"></a><span class='hs-comment'>-- integer assignment to memory</span>
<a name="line-1372"></a>
<a name="line-1373"></a><span class='hs-comment'>-- specific case of adding/subtracting an integer to a particular address.</span>
<a name="line-1374"></a><span class='hs-comment'>-- ToDo: catch other cases where we can use an operation directly on a memory </span>
<a name="line-1375"></a><span class='hs-comment'>-- address.</span>
<a name="line-1376"></a><span class='hs-definition'>assignMem_IntCode</span> <span class='hs-varid'>pk</span> <span class='hs-varid'>addr</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-varid'>op</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmLoad</span> <span class='hs-varid'>addr2</span> <span class='hs-keyword'>_</span><span class='hs-layout'>,</span>
<a name="line-1377"></a> <span class='hs-conid'>CmmLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-varid'>i</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-1378"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>addr</span> <span class='hs-varop'>==</span> <span class='hs-varid'>addr2</span><span class='hs-layout'>,</span> <span class='hs-varid'>pk</span> <span class='hs-varop'>/=</span> <span class='hs-conid'>II64</span> <span class='hs-varop'>||</span> <span class='hs-varid'>is32BitInteger</span> <span class='hs-varid'>i</span><span class='hs-layout'>,</span>
<a name="line-1379"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>instr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>check</span> <span class='hs-varid'>op</span>
<a name="line-1380"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-conid'>Amode</span> <span class='hs-varid'>amode</span> <span class='hs-varid'>code_addr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAmode</span> <span class='hs-varid'>addr</span>
<a name="line-1381"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>code_addr</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-1382"></a> <span class='hs-varid'>instr</span> <span class='hs-varid'>pk</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpImm</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-varid'>amode</span><span class='hs-layout'>)</span>
<a name="line-1383"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>code</span>
<a name="line-1384"></a> <span class='hs-keyword'>where</span>
<a name="line-1385"></a> <span class='hs-varid'>check</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_Add</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span> <span class='hs-conid'>ADD</span>
<a name="line-1386"></a> <span class='hs-varid'>check</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_Sub</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span> <span class='hs-conid'>SUB</span>
<a name="line-1387"></a> <span class='hs-varid'>check</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-1388"></a> <span class='hs-comment'>-- ToDo: more?</span>
<a name="line-1389"></a>
<a name="line-1390"></a><span class='hs-comment'>-- general case</span>
<a name="line-1391"></a><span class='hs-definition'>assignMem_IntCode</span> <span class='hs-varid'>pk</span> <span class='hs-varid'>addr</span> <span class='hs-varid'>src</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1392"></a> <span class='hs-conid'>Amode</span> <span class='hs-varid'>addr</span> <span class='hs-varid'>code_addr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAmode</span> <span class='hs-varid'>addr</span>
<a name="line-1393"></a> <span class='hs-layout'>(</span><span class='hs-varid'>code_src</span><span class='hs-layout'>,</span> <span class='hs-varid'>op_src</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>get_op_RI</span> <span class='hs-varid'>src</span>
<a name="line-1394"></a> <span class='hs-keyword'>let</span>
<a name="line-1395"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>code_src</span> <span class='hs-varop'>`appOL`</span>
<a name="line-1396"></a> <span class='hs-varid'>code_addr</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-1397"></a> <span class='hs-conid'>MOV</span> <span class='hs-varid'>pk</span> <span class='hs-varid'>op_src</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-varid'>addr</span><span class='hs-layout'>)</span>
<a name="line-1398"></a> <span class='hs-comment'>-- NOTE: op_src is stable, so it will still be valid</span>
<a name="line-1399"></a> <span class='hs-comment'>-- after code_addr. This may involve the introduction </span>
<a name="line-1400"></a> <span class='hs-comment'>-- of an extra MOV to a temporary register, but we hope</span>
<a name="line-1401"></a> <span class='hs-comment'>-- the register allocator will get rid of it.</span>
<a name="line-1402"></a> <span class='hs-comment'>--</span>
<a name="line-1403"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>code</span>
<a name="line-1404"></a> <span class='hs-keyword'>where</span>
<a name="line-1405"></a> <span class='hs-varid'>get_op_RI</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-layout'>(</span><span class='hs-conid'>InstrBlock</span><span class='hs-layout'>,</span><span class='hs-conid'>Operand</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- code, operator</span>
<a name="line-1406"></a> <span class='hs-varid'>get_op_RI</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>is32BitLit</span> <span class='hs-varid'>lit</span>
<a name="line-1407"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>nilOL</span><span class='hs-layout'>,</span> <span class='hs-conid'>OpImm</span> <span class='hs-layout'>(</span><span class='hs-varid'>litToImm</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1408"></a> <span class='hs-varid'>get_op_RI</span> <span class='hs-varid'>op</span>
<a name="line-1409"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-layout'>(</span><span class='hs-varid'>reg</span><span class='hs-layout'>,</span><span class='hs-varid'>code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNonClobberedReg</span> <span class='hs-varid'>op</span>
<a name="line-1410"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>code</span><span class='hs-layout'>,</span> <span class='hs-conid'>OpReg</span> <span class='hs-varid'>reg</span><span class='hs-layout'>)</span>
<a name="line-1411"></a>
<a name="line-1412"></a>
<a name="line-1413"></a><span class='hs-comment'>-- Assign; dst is a reg, rhs is mem</span>
<a name="line-1414"></a><span class='hs-definition'>assignReg_IntCode</span> <span class='hs-varid'>pk</span> <span class='hs-varid'>reg</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLoad</span> <span class='hs-varid'>src</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1415"></a> <span class='hs-varid'>load_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>intLoadCode</span> <span class='hs-layout'>(</span><span class='hs-conid'>MOV</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span> <span class='hs-varid'>src</span>
<a name="line-1416"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>load_code</span> <span class='hs-layout'>(</span><span class='hs-varid'>getRegisterReg</span> <span class='hs-varid'>reg</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1417"></a>
<a name="line-1418"></a><span class='hs-comment'>-- dst is a reg, but src could be anything</span>
<a name="line-1419"></a><span class='hs-definition'>assignReg_IntCode</span> <span class='hs-varid'>pk</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>src</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1420"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAnyReg</span> <span class='hs-varid'>src</span>
<a name="line-1421"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>code</span> <span class='hs-layout'>(</span><span class='hs-varid'>getRegisterReg</span> <span class='hs-varid'>reg</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1422"></a>
<a name="line-1423"></a>
<a name="line-1424"></a><span class='hs-comment'>-- Floating point assignment to memory</span>
<a name="line-1425"></a><span class='hs-definition'>assignMem_FltCode</span> <span class='hs-varid'>pk</span> <span class='hs-varid'>addr</span> <span class='hs-varid'>src</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1426"></a> <span class='hs-layout'>(</span><span class='hs-varid'>src_reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>src_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNonClobberedReg</span> <span class='hs-varid'>src</span>
<a name="line-1427"></a> <span class='hs-conid'>Amode</span> <span class='hs-varid'>addr</span> <span class='hs-varid'>addr_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAmode</span> <span class='hs-varid'>addr</span>
<a name="line-1428"></a> <span class='hs-keyword'>let</span>
<a name="line-1429"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>src_code</span> <span class='hs-varop'>`appOL`</span>
<a name="line-1430"></a> <span class='hs-varid'>addr_code</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-1431"></a> <span class='hs-conid'>IF_ARCH_i386</span><span class='hs-layout'>(</span><span class='hs-conid'>GST</span> <span class='hs-varid'>pk</span> <span class='hs-varid'>src_reg</span> <span class='hs-varid'>addr</span><span class='hs-layout'>,</span>
<a name="line-1432"></a> <span class='hs-conid'>MOV</span> <span class='hs-varid'>pk</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>src_reg</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-varid'>addr</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1433"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>code</span>
<a name="line-1434"></a>
<a name="line-1435"></a><span class='hs-comment'>-- Floating point assignment to a register/temporary</span>
<a name="line-1436"></a><span class='hs-definition'>assignReg_FltCode</span> <span class='hs-varid'>pk</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>src</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1437"></a> <span class='hs-varid'>src_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAnyReg</span> <span class='hs-varid'>src</span>
<a name="line-1438"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>src_code</span> <span class='hs-layout'>(</span><span class='hs-varid'>getRegisterReg</span> <span class='hs-varid'>reg</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1439"></a>
<a name="line-1440"></a>
<a name="line-1441"></a><a name="genJump"></a><span class='hs-definition'>genJump</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmExpr</span><span class='hs-comment'>{-the branch target-}</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>InstrBlock</span>
<a name="line-1442"></a>
<a name="line-1443"></a><span class='hs-definition'>genJump</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLoad</span> <span class='hs-varid'>mem</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1444"></a> <span class='hs-conid'>Amode</span> <span class='hs-varid'>target</span> <span class='hs-varid'>code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAmode</span> <span class='hs-varid'>mem</span>
<a name="line-1445"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>code</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>JMP</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-varid'>target</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1446"></a>
<a name="line-1447"></a><span class='hs-definition'>genJump</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1448"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>unitOL</span> <span class='hs-layout'>(</span><span class='hs-conid'>JMP</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpImm</span> <span class='hs-layout'>(</span><span class='hs-varid'>litToImm</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1449"></a>
<a name="line-1450"></a><span class='hs-definition'>genJump</span> <span class='hs-varid'>expr</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1451"></a> <span class='hs-layout'>(</span><span class='hs-varid'>reg</span><span class='hs-layout'>,</span><span class='hs-varid'>code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-varid'>expr</span>
<a name="line-1452"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>code</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>JMP</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>reg</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1453"></a>
<a name="line-1454"></a>
<a name="line-1455"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-1456"></a><span class='hs-comment'>-- Unconditional branches</span>
<a name="line-1457"></a>
<a name="line-1458"></a><a name="genBranch"></a><span class='hs-definition'>genBranch</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>BlockId</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>InstrBlock</span>
<a name="line-1459"></a><span class='hs-definition'>genBranch</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-varid'>toOL</span> <span class='hs-varop'>.</span> <span class='hs-varid'>mkJumpInstr</span>
<a name="line-1460"></a>
<a name="line-1461"></a>
<a name="line-1462"></a>
<a name="line-1463"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-1464"></a><span class='hs-comment'>-- Conditional jumps</span>
<a name="line-1465"></a>
<a name="line-1466"></a><span class='hs-comment'>{-
<a name="line-1467"></a>Conditional jumps are always to local labels, so we can use branch
<a name="line-1468"></a>instructions. We peek at the arguments to decide what kind of
<a name="line-1469"></a>comparison to do.
<a name="line-1470"></a>
<a name="line-1471"></a>I386: First, we have to ensure that the condition
<a name="line-1472"></a>codes are set according to the supplied comparison operation.
<a name="line-1473"></a>-}</span>
<a name="line-1474"></a>
<a name="line-1475"></a><a name="genCondJump"></a><span class='hs-definition'>genCondJump</span>
<a name="line-1476"></a> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>BlockId</span> <span class='hs-comment'>-- the branch target</span>
<a name="line-1477"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-comment'>-- the condition on which to branch</span>
<a name="line-1478"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>InstrBlock</span>
<a name="line-1479"></a>
<a name="line-1480"></a><span class='hs-cpp'>#if i386_TARGET_ARCH</span>
<a name="line-1481"></a><span class='hs-definition'>genCondJump</span> <span class='hs-varid'>id</span> <span class='hs-varid'>bool</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1482"></a> <span class='hs-conid'>CondCode</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getCondCode</span> <span class='hs-varid'>bool</span>
<a name="line-1483"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>code</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>JXX</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>id</span><span class='hs-layout'>)</span>
<a name="line-1484"></a>
<a name="line-1485"></a><span class='hs-cpp'>#elif x86_64_TARGET_ARCH</span>
<a name="line-1486"></a><span class='hs-definition'>genCondJump</span> <span class='hs-varid'>id</span> <span class='hs-varid'>bool</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1487"></a> <span class='hs-conid'>CondCode</span> <span class='hs-varid'>is_float</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>cond_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getCondCode</span> <span class='hs-varid'>bool</span>
<a name="line-1488"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>not</span> <span class='hs-varid'>is_float</span>
<a name="line-1489"></a> <span class='hs-keyword'>then</span>
<a name="line-1490"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>cond_code</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>JXX</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>id</span><span class='hs-layout'>)</span>
<a name="line-1491"></a> <span class='hs-keyword'>else</span> <span class='hs-keyword'>do</span>
<a name="line-1492"></a> <span class='hs-varid'>lbl</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getBlockIdNat</span>
<a name="line-1493"></a>
<a name="line-1494"></a> <span class='hs-comment'>-- see comment with condFltReg</span>
<a name="line-1495"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>cond</span> <span class='hs-keyword'>of</span>
<a name="line-1496"></a> <span class='hs-conid'>NE</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>or_unordered</span>
<a name="line-1497"></a> <span class='hs-conid'>GU</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>plain_test</span>
<a name="line-1498"></a> <span class='hs-conid'>GEU</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>plain_test</span>
<a name="line-1499"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>and_ordered</span>
<a name="line-1500"></a>
<a name="line-1501"></a> <span class='hs-varid'>plain_test</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unitOL</span> <span class='hs-layout'>(</span>
<a name="line-1502"></a> <span class='hs-conid'>JXX</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>id</span>
<a name="line-1503"></a> <span class='hs-layout'>)</span>
<a name="line-1504"></a> <span class='hs-varid'>or_unordered</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-1505"></a> <span class='hs-conid'>JXX</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>id</span><span class='hs-layout'>,</span>
<a name="line-1506"></a> <span class='hs-conid'>JXX</span> <span class='hs-conid'>PARITY</span> <span class='hs-varid'>id</span>
<a name="line-1507"></a> <span class='hs-keyglyph'>]</span>
<a name="line-1508"></a> <span class='hs-varid'>and_ordered</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-1509"></a> <span class='hs-conid'>JXX</span> <span class='hs-conid'>PARITY</span> <span class='hs-varid'>lbl</span><span class='hs-layout'>,</span>
<a name="line-1510"></a> <span class='hs-conid'>JXX</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>id</span><span class='hs-layout'>,</span>
<a name="line-1511"></a> <span class='hs-conid'>JXX</span> <span class='hs-conid'>ALWAYS</span> <span class='hs-varid'>lbl</span><span class='hs-layout'>,</span>
<a name="line-1512"></a> <span class='hs-conid'>NEWBLOCK</span> <span class='hs-varid'>lbl</span>
<a name="line-1513"></a> <span class='hs-keyglyph'>]</span>
<a name="line-1514"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>cond_code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-1515"></a>
<a name="line-1516"></a><span class='hs-cpp'>#else</span>
<a name="line-1517"></a><span class='hs-definition'>genCondJump</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>panic</span> <span class='hs-str'>"X86.genCondJump: not defined"</span>
<a name="line-1518"></a>
<a name="line-1519"></a><span class='hs-cpp'>#endif</span>
<a name="line-1520"></a>
<a name="line-1521"></a>
<a name="line-1522"></a>
<a name="line-1523"></a>
<a name="line-1524"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-1525"></a><span class='hs-comment'>-- Generating C calls</span>
<a name="line-1526"></a>
<a name="line-1527"></a><span class='hs-comment'>-- Now the biggest nightmare---calls. Most of the nastiness is buried in</span>
<a name="line-1528"></a><span class='hs-comment'>-- @get_arg@, which moves the arguments to the correct registers/stack</span>
<a name="line-1529"></a><span class='hs-comment'>-- locations. Apart from that, the code is easy.</span>
<a name="line-1530"></a><span class='hs-comment'>-- </span>
<a name="line-1531"></a><span class='hs-comment'>-- (If applicable) Do not fill the delay slots here; you will confuse the</span>
<a name="line-1532"></a><span class='hs-comment'>-- register allocator.</span>
<a name="line-1533"></a>
<a name="line-1534"></a><a name="genCCall"></a><span class='hs-definition'>genCCall</span>
<a name="line-1535"></a> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmCallTarget</span> <span class='hs-comment'>-- function to call</span>
<a name="line-1536"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>HintedCmmFormals</span> <span class='hs-comment'>-- where to put the result</span>
<a name="line-1537"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>HintedCmmActuals</span> <span class='hs-comment'>-- arguments (of mixed type)</span>
<a name="line-1538"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>InstrBlock</span>
<a name="line-1539"></a>
<a name="line-1540"></a><span class='hs-comment'>-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -</span>
<a name="line-1541"></a>
<a name="line-1542"></a><span class='hs-cpp'>#if i386_TARGET_ARCH</span>
<a name="line-1543"></a>
<a name="line-1544"></a><span class='hs-definition'>genCCall</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmPrim</span> <span class='hs-conid'>MO_WriteBarrier</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varid'>nilOL</span>
<a name="line-1545"></a> <span class='hs-comment'>-- write barrier compiles to no code on x86/x86-64; </span>
<a name="line-1546"></a> <span class='hs-comment'>-- we keep it this long in order to prevent earlier optimisations.</span>
<a name="line-1547"></a>
<a name="line-1548"></a><span class='hs-comment'>-- we only cope with a single result for foreign calls</span>
<a name="line-1549"></a><span class='hs-definition'>genCCall</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmPrim</span> <span class='hs-varid'>op</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmHinted</span> <span class='hs-varid'>r</span> <span class='hs-keyword'>_</span><span class='hs-keyglyph'>]</span> <span class='hs-varid'>args</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1550"></a> <span class='hs-varid'>l1</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewLabelNat</span>
<a name="line-1551"></a> <span class='hs-varid'>l2</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewLabelNat</span>
<a name="line-1552"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>op</span> <span class='hs-keyword'>of</span>
<a name="line-1553"></a> <span class='hs-conid'>MO_F32_Sqrt</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>actuallyInlineFloatOp</span> <span class='hs-conid'>GSQRT</span> <span class='hs-conid'>FF32</span> <span class='hs-varid'>args</span>
<a name="line-1554"></a> <span class='hs-conid'>MO_F64_Sqrt</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>actuallyInlineFloatOp</span> <span class='hs-conid'>GSQRT</span> <span class='hs-conid'>FF64</span> <span class='hs-varid'>args</span>
<a name="line-1555"></a>
<a name="line-1556"></a> <span class='hs-conid'>MO_F32_Sin</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>actuallyInlineFloatOp</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GSIN</span> <span class='hs-varid'>s</span> <span class='hs-varid'>l1</span> <span class='hs-varid'>l2</span><span class='hs-layout'>)</span> <span class='hs-conid'>FF32</span> <span class='hs-varid'>args</span>
<a name="line-1557"></a> <span class='hs-conid'>MO_F64_Sin</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>actuallyInlineFloatOp</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GSIN</span> <span class='hs-varid'>s</span> <span class='hs-varid'>l1</span> <span class='hs-varid'>l2</span><span class='hs-layout'>)</span> <span class='hs-conid'>FF64</span> <span class='hs-varid'>args</span>
<a name="line-1558"></a>
<a name="line-1559"></a> <span class='hs-conid'>MO_F32_Cos</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>actuallyInlineFloatOp</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GCOS</span> <span class='hs-varid'>s</span> <span class='hs-varid'>l1</span> <span class='hs-varid'>l2</span><span class='hs-layout'>)</span> <span class='hs-conid'>FF32</span> <span class='hs-varid'>args</span>
<a name="line-1560"></a> <span class='hs-conid'>MO_F64_Cos</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>actuallyInlineFloatOp</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GCOS</span> <span class='hs-varid'>s</span> <span class='hs-varid'>l1</span> <span class='hs-varid'>l2</span><span class='hs-layout'>)</span> <span class='hs-conid'>FF64</span> <span class='hs-varid'>args</span>
<a name="line-1561"></a>
<a name="line-1562"></a> <span class='hs-conid'>MO_F32_Tan</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>actuallyInlineFloatOp</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GTAN</span> <span class='hs-varid'>s</span> <span class='hs-varid'>l1</span> <span class='hs-varid'>l2</span><span class='hs-layout'>)</span> <span class='hs-conid'>FF32</span> <span class='hs-varid'>args</span>
<a name="line-1563"></a> <span class='hs-conid'>MO_F64_Tan</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>actuallyInlineFloatOp</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GTAN</span> <span class='hs-varid'>s</span> <span class='hs-varid'>l1</span> <span class='hs-varid'>l2</span><span class='hs-layout'>)</span> <span class='hs-conid'>FF64</span> <span class='hs-varid'>args</span>
<a name="line-1564"></a>
<a name="line-1565"></a> <span class='hs-varid'>other_op</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>outOfLineFloatOp</span> <span class='hs-varid'>op</span> <span class='hs-varid'>r</span> <span class='hs-varid'>args</span>
<a name="line-1566"></a> <span class='hs-keyword'>where</span>
<a name="line-1567"></a> <span class='hs-varid'>actuallyInlineFloatOp</span> <span class='hs-varid'>instr</span> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmHinted</span> <span class='hs-varid'>x</span> <span class='hs-keyword'>_</span><span class='hs-keyglyph'>]</span>
<a name="line-1568"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>res</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>trivialUFCode</span> <span class='hs-varid'>size</span> <span class='hs-layout'>(</span><span class='hs-varid'>instr</span> <span class='hs-varid'>size</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span>
<a name="line-1569"></a> <span class='hs-varid'>any</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>anyReg</span> <span class='hs-varid'>res</span>
<a name="line-1570"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>any</span> <span class='hs-layout'>(</span><span class='hs-varid'>getRegisterReg</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLocal</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1571"></a>
<a name="line-1572"></a><span class='hs-definition'>genCCall</span> <span class='hs-varid'>target</span> <span class='hs-varid'>dest_regs</span> <span class='hs-varid'>args</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1573"></a> <span class='hs-keyword'>let</span>
<a name="line-1574"></a> <span class='hs-varid'>sizes</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>arg_size</span> <span class='hs-varop'>.</span> <span class='hs-varid'>cmmExprType</span> <span class='hs-varop'>.</span> <span class='hs-varid'>hintlessCmm</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>reverse</span> <span class='hs-varid'>args</span><span class='hs-layout'>)</span>
<a name="line-1575"></a><span class='hs-cpp'>#if !darwin_TARGET_OS </span>
<a name="line-1576"></a> <span class='hs-varid'>tot_arg_size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sum</span> <span class='hs-varid'>sizes</span>
<a name="line-1577"></a><span class='hs-cpp'>#else</span>
<a name="line-1578"></a> <span class='hs-varid'>raw_arg_size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sum</span> <span class='hs-varid'>sizes</span>
<a name="line-1579"></a> <span class='hs-varid'>tot_arg_size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>roundTo</span> <span class='hs-num'>16</span> <span class='hs-varid'>raw_arg_size</span>
<a name="line-1580"></a> <span class='hs-varid'>arg_pad_size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>tot_arg_size</span> <span class='hs-comment'>-</span> <span class='hs-varid'>raw_arg_size</span>
<a name="line-1581"></a> <span class='hs-varid'>delta0</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getDeltaNat</span>
<a name="line-1582"></a> <span class='hs-varid'>setDeltaNat</span> <span class='hs-layout'>(</span><span class='hs-varid'>delta0</span> <span class='hs-comment'>-</span> <span class='hs-varid'>arg_pad_size</span><span class='hs-layout'>)</span>
<a name="line-1583"></a><span class='hs-cpp'>#endif</span>
<a name="line-1584"></a>
<a name="line-1585"></a> <span class='hs-varid'>push_codes</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-varid'>push_arg</span> <span class='hs-layout'>(</span><span class='hs-varid'>reverse</span> <span class='hs-varid'>args</span><span class='hs-layout'>)</span>
<a name="line-1586"></a> <span class='hs-varid'>delta</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getDeltaNat</span>
<a name="line-1587"></a>
<a name="line-1588"></a> <span class='hs-comment'>-- in</span>
<a name="line-1589"></a> <span class='hs-comment'>-- deal with static vs dynamic call targets</span>
<a name="line-1590"></a> <span class='hs-layout'>(</span><span class='hs-varid'>callinsns</span><span class='hs-layout'>,</span><span class='hs-varid'>cconv</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span>
<a name="line-1591"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>target</span> <span class='hs-keyword'>of</span>
<a name="line-1592"></a> <span class='hs-comment'>-- CmmPrim -> ...</span>
<a name="line-1593"></a> <span class='hs-conid'>CmmCallee</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLabel</span> <span class='hs-varid'>lbl</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>conv</span>
<a name="line-1594"></a> <span class='hs-keyglyph'>-></span> <span class='hs-comment'>-- ToDo: stdcall arg sizes</span>
<a name="line-1595"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>unitOL</span> <span class='hs-layout'>(</span><span class='hs-conid'>CALL</span> <span class='hs-layout'>(</span><span class='hs-conid'>Left</span> <span class='hs-varid'>fn_imm</span><span class='hs-layout'>)</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>conv</span><span class='hs-layout'>)</span>
<a name="line-1596"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>fn_imm</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ImmCLbl</span> <span class='hs-varid'>lbl</span>
<a name="line-1597"></a> <span class='hs-conid'>CmmCallee</span> <span class='hs-varid'>expr</span> <span class='hs-varid'>conv</span>
<a name="line-1598"></a> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-layout'>{</span> <span class='hs-layout'>(</span><span class='hs-varid'>dyn_c</span><span class='hs-layout'>,</span> <span class='hs-varid'>dyn_r</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>get_op</span> <span class='hs-varid'>expr</span>
<a name="line-1599"></a> <span class='hs-layout'>;</span> <span class='hs-conid'>ASSERT</span><span class='hs-layout'>(</span> <span class='hs-varid'>isWord32</span> <span class='hs-layout'>(</span><span class='hs-varid'>cmmExprType</span> <span class='hs-varid'>expr</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-1600"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>dyn_c</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>CALL</span> <span class='hs-layout'>(</span><span class='hs-conid'>Right</span> <span class='hs-varid'>dyn_r</span><span class='hs-layout'>)</span> <span class='hs-conid'>[]</span><span class='hs-layout'>,</span> <span class='hs-varid'>conv</span><span class='hs-layout'>)</span> <span class='hs-layout'>}</span>
<a name="line-1601"></a>
<a name="line-1602"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>push_code</span>
<a name="line-1603"></a><span class='hs-cpp'>#if darwin_TARGET_OS</span>
<a name="line-1604"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>arg_pad_size</span> <span class='hs-varop'>/=</span> <span class='hs-num'>0</span>
<a name="line-1605"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>SUB</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpImm</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-varid'>arg_pad_size</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>esp</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1606"></a> <span class='hs-conid'>DELTA</span> <span class='hs-layout'>(</span><span class='hs-varid'>delta0</span> <span class='hs-comment'>-</span> <span class='hs-varid'>arg_pad_size</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-1607"></a> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>concatOL</span> <span class='hs-varid'>push_codes</span>
<a name="line-1608"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>
<a name="line-1609"></a><span class='hs-cpp'>#endif</span>
<a name="line-1610"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>concatOL</span> <span class='hs-varid'>push_codes</span>
<a name="line-1611"></a> <span class='hs-varid'>call</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>callinsns</span> <span class='hs-varop'>`appOL`</span>
<a name="line-1612"></a> <span class='hs-varid'>toOL</span> <span class='hs-layout'>(</span>
<a name="line-1613"></a> <span class='hs-comment'>-- Deallocate parameters after call for ccall;</span>
<a name="line-1614"></a> <span class='hs-comment'>-- but not for stdcall (callee does it)</span>
<a name="line-1615"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>if</span> <span class='hs-varid'>cconv</span> <span class='hs-varop'>==</span> <span class='hs-conid'>StdCallConv</span> <span class='hs-varop'>||</span> <span class='hs-varid'>tot_arg_size</span><span class='hs-varop'>==</span><span class='hs-num'>0</span> <span class='hs-keyword'>then</span> <span class='hs-conid'>[]</span> <span class='hs-keyword'>else</span>
<a name="line-1616"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>ADD</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpImm</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-varid'>tot_arg_size</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>esp</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-1617"></a> <span class='hs-varop'>++</span>
<a name="line-1618"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DELTA</span> <span class='hs-layout'>(</span><span class='hs-varid'>delta</span> <span class='hs-varop'>+</span> <span class='hs-varid'>tot_arg_size</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-1619"></a> <span class='hs-layout'>)</span>
<a name="line-1620"></a> <span class='hs-comment'>-- in</span>
<a name="line-1621"></a> <span class='hs-varid'>setDeltaNat</span> <span class='hs-layout'>(</span><span class='hs-varid'>delta</span> <span class='hs-varop'>+</span> <span class='hs-varid'>tot_arg_size</span><span class='hs-layout'>)</span>
<a name="line-1622"></a>
<a name="line-1623"></a> <span class='hs-keyword'>let</span>
<a name="line-1624"></a> <span class='hs-comment'>-- assign the results, if necessary</span>
<a name="line-1625"></a> <span class='hs-varid'>assign_code</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>nilOL</span>
<a name="line-1626"></a> <span class='hs-varid'>assign_code</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmHinted</span> <span class='hs-varid'>dest</span> <span class='hs-sel'>_hint</span><span class='hs-keyglyph'>]</span>
<a name="line-1627"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isFloatType</span> <span class='hs-varid'>ty</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unitOL</span> <span class='hs-layout'>(</span><span class='hs-conid'>GMOV</span> <span class='hs-varid'>fake0</span> <span class='hs-varid'>r_dest</span><span class='hs-layout'>)</span>
<a name="line-1628"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isWord64</span> <span class='hs-varid'>ty</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>MOV</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>eax</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>r_dest</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1629"></a> <span class='hs-conid'>MOV</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>edx</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>r_dest_hi</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-1630"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unitOL</span> <span class='hs-layout'>(</span><span class='hs-conid'>MOV</span> <span class='hs-layout'>(</span><span class='hs-varid'>intSize</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>eax</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>r_dest</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1631"></a> <span class='hs-keyword'>where</span>
<a name="line-1632"></a> <span class='hs-varid'>ty</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>localRegType</span> <span class='hs-varid'>dest</span>
<a name="line-1633"></a> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>typeWidth</span> <span class='hs-varid'>ty</span>
<a name="line-1634"></a> <span class='hs-varid'>r_dest_hi</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getHiVRegFromLo</span> <span class='hs-varid'>r_dest</span>
<a name="line-1635"></a> <span class='hs-varid'>r_dest</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getRegisterReg</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLocal</span> <span class='hs-varid'>dest</span><span class='hs-layout'>)</span>
<a name="line-1636"></a> <span class='hs-varid'>assign_code</span> <span class='hs-varid'>many</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>panic</span> <span class='hs-str'>"genCCall.assign_code many"</span>
<a name="line-1637"></a>
<a name="line-1638"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>push_code</span> <span class='hs-varop'>`appOL`</span>
<a name="line-1639"></a> <span class='hs-varid'>call</span> <span class='hs-varop'>`appOL`</span>
<a name="line-1640"></a> <span class='hs-varid'>assign_code</span> <span class='hs-varid'>dest_regs</span><span class='hs-layout'>)</span>
<a name="line-1641"></a>
<a name="line-1642"></a> <span class='hs-keyword'>where</span>
<a name="line-1643"></a> <span class='hs-varid'>arg_size</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmType</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- Width in bytes</span>
<a name="line-1644"></a> <span class='hs-varid'>arg_size</span> <span class='hs-varid'>ty</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>widthInBytes</span> <span class='hs-layout'>(</span><span class='hs-varid'>typeWidth</span> <span class='hs-varid'>ty</span><span class='hs-layout'>)</span>
<a name="line-1645"></a>
<a name="line-1646"></a> <span class='hs-varid'>roundTo</span> <span class='hs-varid'>a</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>`mod`</span> <span class='hs-varid'>a</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span>
<a name="line-1647"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span> <span class='hs-varop'>+</span> <span class='hs-varid'>a</span> <span class='hs-comment'>-</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varop'>`mod`</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span>
<a name="line-1648"></a>
<a name="line-1649"></a>
<a name="line-1650"></a> <span class='hs-varid'>push_arg</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>HintedCmmActual</span> <span class='hs-comment'>{-current argument-}</span>
<a name="line-1651"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>InstrBlock</span> <span class='hs-comment'>-- code</span>
<a name="line-1652"></a>
<a name="line-1653"></a> <span class='hs-varid'>push_arg</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmHinted</span> <span class='hs-varid'>arg</span> <span class='hs-sel'>_hint</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- we don't need the hints on x86</span>
<a name="line-1654"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isWord64</span> <span class='hs-varid'>arg_ty</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1655"></a> <span class='hs-conid'>ChildCode64</span> <span class='hs-varid'>code</span> <span class='hs-varid'>r_lo</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>iselExpr64</span> <span class='hs-varid'>arg</span>
<a name="line-1656"></a> <span class='hs-varid'>delta</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getDeltaNat</span>
<a name="line-1657"></a> <span class='hs-varid'>setDeltaNat</span> <span class='hs-layout'>(</span><span class='hs-varid'>delta</span> <span class='hs-comment'>-</span> <span class='hs-num'>8</span><span class='hs-layout'>)</span>
<a name="line-1658"></a> <span class='hs-keyword'>let</span>
<a name="line-1659"></a> <span class='hs-varid'>r_hi</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getHiVRegFromLo</span> <span class='hs-varid'>r_lo</span>
<a name="line-1660"></a> <span class='hs-comment'>-- in</span>
<a name="line-1661"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span> <span class='hs-varid'>code</span> <span class='hs-varop'>`appOL`</span>
<a name="line-1662"></a> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PUSH</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>r_hi</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>DELTA</span> <span class='hs-layout'>(</span><span class='hs-varid'>delta</span> <span class='hs-comment'>-</span> <span class='hs-num'>4</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1663"></a> <span class='hs-conid'>PUSH</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>r_lo</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>DELTA</span> <span class='hs-layout'>(</span><span class='hs-varid'>delta</span> <span class='hs-comment'>-</span> <span class='hs-num'>8</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1664"></a> <span class='hs-conid'>DELTA</span> <span class='hs-layout'>(</span><span class='hs-varid'>delta</span><span class='hs-comment'>-</span><span class='hs-num'>8</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-1665"></a> <span class='hs-layout'>)</span>
<a name="line-1666"></a>
<a name="line-1667"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1668"></a> <span class='hs-layout'>(</span><span class='hs-varid'>code</span><span class='hs-layout'>,</span> <span class='hs-varid'>reg</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>get_op</span> <span class='hs-varid'>arg</span>
<a name="line-1669"></a> <span class='hs-varid'>delta</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getDeltaNat</span>
<a name="line-1670"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>arg_size</span> <span class='hs-varid'>arg_ty</span> <span class='hs-comment'>-- Byte size</span>
<a name="line-1671"></a> <span class='hs-varid'>setDeltaNat</span> <span class='hs-layout'>(</span><span class='hs-varid'>delta</span><span class='hs-comment'>-</span><span class='hs-varid'>size</span><span class='hs-layout'>)</span>
<a name="line-1672"></a> <span class='hs-keyword'>if</span> <span class='hs-layout'>(</span><span class='hs-varid'>isFloatType</span> <span class='hs-varid'>arg_ty</span><span class='hs-layout'>)</span>
<a name="line-1673"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>code</span> <span class='hs-varop'>`appOL`</span>
<a name="line-1674"></a> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>SUB</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpImm</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-varid'>size</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>esp</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1675"></a> <span class='hs-conid'>DELTA</span> <span class='hs-layout'>(</span><span class='hs-varid'>delta</span><span class='hs-comment'>-</span><span class='hs-varid'>size</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1676"></a> <span class='hs-conid'>GST</span> <span class='hs-layout'>(</span><span class='hs-varid'>floatSize</span> <span class='hs-layout'>(</span><span class='hs-varid'>typeWidth</span> <span class='hs-varid'>arg_ty</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1677"></a> <span class='hs-varid'>reg</span> <span class='hs-layout'>(</span><span class='hs-conid'>AddrBaseIndex</span> <span class='hs-layout'>(</span><span class='hs-conid'>EABaseReg</span> <span class='hs-varid'>esp</span><span class='hs-layout'>)</span>
<a name="line-1678"></a> <span class='hs-conid'>EAIndexNone</span>
<a name="line-1679"></a> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-1680"></a> <span class='hs-layout'>)</span>
<a name="line-1681"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>code</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-1682"></a> <span class='hs-conid'>PUSH</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>reg</span><span class='hs-layout'>)</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-1683"></a> <span class='hs-conid'>DELTA</span> <span class='hs-layout'>(</span><span class='hs-varid'>delta</span><span class='hs-comment'>-</span><span class='hs-varid'>size</span><span class='hs-layout'>)</span>
<a name="line-1684"></a> <span class='hs-layout'>)</span>
<a name="line-1685"></a> <span class='hs-keyword'>where</span>
<a name="line-1686"></a> <span class='hs-varid'>arg_ty</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cmmExprType</span> <span class='hs-varid'>arg</span>
<a name="line-1687"></a>
<a name="line-1688"></a> <span class='hs-comment'>------------</span>
<a name="line-1689"></a> <span class='hs-varid'>get_op</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-layout'>(</span><span class='hs-conid'>InstrBlock</span><span class='hs-layout'>,</span> <span class='hs-conid'>Reg</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- code, reg</span>
<a name="line-1690"></a> <span class='hs-varid'>get_op</span> <span class='hs-varid'>op</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1691"></a> <span class='hs-layout'>(</span><span class='hs-varid'>reg</span><span class='hs-layout'>,</span><span class='hs-varid'>code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-varid'>op</span>
<a name="line-1692"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>code</span><span class='hs-layout'>,</span> <span class='hs-varid'>reg</span><span class='hs-layout'>)</span>
<a name="line-1693"></a>
<a name="line-1694"></a><span class='hs-cpp'>#elif x86_64_TARGET_ARCH</span>
<a name="line-1695"></a>
<a name="line-1696"></a><span class='hs-definition'>genCCall</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmPrim</span> <span class='hs-conid'>MO_WriteBarrier</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varid'>nilOL</span>
<a name="line-1697"></a> <span class='hs-comment'>-- write barrier compiles to no code on x86/x86-64; </span>
<a name="line-1698"></a> <span class='hs-comment'>-- we keep it this long in order to prevent earlier optimisations.</span>
<a name="line-1699"></a>
<a name="line-1700"></a>
<a name="line-1701"></a><span class='hs-definition'>genCCall</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmPrim</span> <span class='hs-varid'>op</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmHinted</span> <span class='hs-varid'>r</span> <span class='hs-keyword'>_</span><span class='hs-keyglyph'>]</span> <span class='hs-varid'>args</span> <span class='hs-keyglyph'>=</span>
<a name="line-1702"></a> <span class='hs-varid'>outOfLineFloatOp</span> <span class='hs-varid'>op</span> <span class='hs-varid'>r</span> <span class='hs-varid'>args</span>
<a name="line-1703"></a>
<a name="line-1704"></a><span class='hs-definition'>genCCall</span> <span class='hs-varid'>target</span> <span class='hs-varid'>dest_regs</span> <span class='hs-varid'>args</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1705"></a>
<a name="line-1706"></a> <span class='hs-comment'>-- load up the register arguments</span>
<a name="line-1707"></a> <span class='hs-layout'>(</span><span class='hs-varid'>stack_args</span><span class='hs-layout'>,</span> <span class='hs-varid'>aregs</span><span class='hs-layout'>,</span> <span class='hs-varid'>fregs</span><span class='hs-layout'>,</span> <span class='hs-varid'>load_args_code</span><span class='hs-layout'>)</span>
<a name="line-1708"></a> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>load_args</span> <span class='hs-varid'>args</span> <span class='hs-varid'>allArgRegs</span> <span class='hs-varid'>allFPArgRegs</span> <span class='hs-varid'>nilOL</span>
<a name="line-1709"></a>
<a name="line-1710"></a> <span class='hs-keyword'>let</span>
<a name="line-1711"></a> <span class='hs-varid'>fp_regs_used</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reverse</span> <span class='hs-layout'>(</span><span class='hs-varid'>drop</span> <span class='hs-layout'>(</span><span class='hs-varid'>length</span> <span class='hs-varid'>fregs</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>reverse</span> <span class='hs-varid'>allFPArgRegs</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1712"></a> <span class='hs-varid'>int_regs_used</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reverse</span> <span class='hs-layout'>(</span><span class='hs-varid'>drop</span> <span class='hs-layout'>(</span><span class='hs-varid'>length</span> <span class='hs-varid'>aregs</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>reverse</span> <span class='hs-varid'>allArgRegs</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1713"></a> <span class='hs-varid'>arg_regs</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>eax</span><span class='hs-keyglyph'>]</span> <span class='hs-varop'>++</span> <span class='hs-varid'>int_regs_used</span> <span class='hs-varop'>++</span> <span class='hs-varid'>fp_regs_used</span>
<a name="line-1714"></a> <span class='hs-comment'>-- for annotating the call instruction with</span>
<a name="line-1715"></a>
<a name="line-1716"></a> <span class='hs-varid'>sse_regs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>length</span> <span class='hs-varid'>fp_regs_used</span>
<a name="line-1717"></a>
<a name="line-1718"></a> <span class='hs-varid'>tot_arg_size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>arg_size</span> <span class='hs-varop'>*</span> <span class='hs-varid'>length</span> <span class='hs-varid'>stack_args</span>
<a name="line-1719"></a>
<a name="line-1720"></a> <span class='hs-comment'>-- On entry to the called function, %rsp should be aligned</span>
<a name="line-1721"></a> <span class='hs-comment'>-- on a 16-byte boundary +8 (i.e. the first stack arg after</span>
<a name="line-1722"></a> <span class='hs-comment'>-- the return address is 16-byte aligned). In STG land</span>
<a name="line-1723"></a> <span class='hs-comment'>-- %rsp is kept 16-byte aligned (see StgCRun.c), so we just</span>
<a name="line-1724"></a> <span class='hs-comment'>-- need to make sure we push a multiple of 16-bytes of args,</span>
<a name="line-1725"></a> <span class='hs-comment'>-- plus the return address, to get the correct alignment.</span>
<a name="line-1726"></a> <span class='hs-comment'>-- Urg, this is hard. We need to feed the delta back into</span>
<a name="line-1727"></a> <span class='hs-comment'>-- the arg pushing code.</span>
<a name="line-1728"></a> <span class='hs-layout'>(</span><span class='hs-varid'>real_size</span><span class='hs-layout'>,</span> <span class='hs-varid'>adjust_rsp</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span>
<a name="line-1729"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>tot_arg_size</span> <span class='hs-varop'>`rem`</span> <span class='hs-num'>16</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span>
<a name="line-1730"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>tot_arg_size</span><span class='hs-layout'>,</span> <span class='hs-varid'>nilOL</span><span class='hs-layout'>)</span>
<a name="line-1731"></a> <span class='hs-keyword'>else</span> <span class='hs-keyword'>do</span> <span class='hs-comment'>-- we need to adjust...</span>
<a name="line-1732"></a> <span class='hs-varid'>delta</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getDeltaNat</span>
<a name="line-1733"></a> <span class='hs-varid'>setDeltaNat</span> <span class='hs-layout'>(</span><span class='hs-varid'>delta</span><span class='hs-comment'>-</span><span class='hs-num'>8</span><span class='hs-layout'>)</span>
<a name="line-1734"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>tot_arg_size</span><span class='hs-varop'>+</span><span class='hs-num'>8</span><span class='hs-layout'>,</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-1735"></a> <span class='hs-conid'>SUB</span> <span class='hs-conid'>II64</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpImm</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-num'>8</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>rsp</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1736"></a> <span class='hs-conid'>DELTA</span> <span class='hs-layout'>(</span><span class='hs-varid'>delta</span><span class='hs-comment'>-</span><span class='hs-num'>8</span><span class='hs-layout'>)</span>
<a name="line-1737"></a> <span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-1738"></a>
<a name="line-1739"></a> <span class='hs-comment'>-- push the stack args, right to left</span>
<a name="line-1740"></a> <span class='hs-varid'>push_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>push_args</span> <span class='hs-layout'>(</span><span class='hs-varid'>reverse</span> <span class='hs-varid'>stack_args</span><span class='hs-layout'>)</span> <span class='hs-varid'>nilOL</span>
<a name="line-1741"></a> <span class='hs-varid'>delta</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getDeltaNat</span>
<a name="line-1742"></a>
<a name="line-1743"></a> <span class='hs-comment'>-- deal with static vs dynamic call targets</span>
<a name="line-1744"></a> <span class='hs-layout'>(</span><span class='hs-varid'>callinsns</span><span class='hs-layout'>,</span><span class='hs-varid'>cconv</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span>
<a name="line-1745"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>target</span> <span class='hs-keyword'>of</span>
<a name="line-1746"></a> <span class='hs-comment'>-- CmmPrim -> ...</span>
<a name="line-1747"></a> <span class='hs-conid'>CmmCallee</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLabel</span> <span class='hs-varid'>lbl</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>conv</span>
<a name="line-1748"></a> <span class='hs-keyglyph'>-></span> <span class='hs-comment'>-- ToDo: stdcall arg sizes</span>
<a name="line-1749"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>unitOL</span> <span class='hs-layout'>(</span><span class='hs-conid'>CALL</span> <span class='hs-layout'>(</span><span class='hs-conid'>Left</span> <span class='hs-varid'>fn_imm</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg_regs</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>conv</span><span class='hs-layout'>)</span>
<a name="line-1750"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>fn_imm</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ImmCLbl</span> <span class='hs-varid'>lbl</span>
<a name="line-1751"></a> <span class='hs-conid'>CmmCallee</span> <span class='hs-varid'>expr</span> <span class='hs-varid'>conv</span>
<a name="line-1752"></a> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-layout'>(</span><span class='hs-varid'>dyn_r</span><span class='hs-layout'>,</span> <span class='hs-varid'>dyn_c</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-varid'>expr</span>
<a name="line-1753"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>dyn_c</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>CALL</span> <span class='hs-layout'>(</span><span class='hs-conid'>Right</span> <span class='hs-varid'>dyn_r</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg_regs</span><span class='hs-layout'>,</span> <span class='hs-varid'>conv</span><span class='hs-layout'>)</span>
<a name="line-1754"></a>
<a name="line-1755"></a> <span class='hs-keyword'>let</span>
<a name="line-1756"></a> <span class='hs-comment'>-- The x86_64 ABI requires us to set %al to the number of SSE</span>
<a name="line-1757"></a> <span class='hs-comment'>-- registers that contain arguments, if the called routine</span>
<a name="line-1758"></a> <span class='hs-comment'>-- is a varargs function. We don't know whether it's a</span>
<a name="line-1759"></a> <span class='hs-comment'>-- varargs function or not, so we have to assume it is.</span>
<a name="line-1760"></a> <span class='hs-comment'>--</span>
<a name="line-1761"></a> <span class='hs-comment'>-- It's not safe to omit this assignment, even if the number</span>
<a name="line-1762"></a> <span class='hs-comment'>-- of SSE regs in use is zero. If %al is larger than 8</span>
<a name="line-1763"></a> <span class='hs-comment'>-- on entry to a varargs function, seg faults ensue.</span>
<a name="line-1764"></a> <span class='hs-varid'>assign_eax</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unitOL</span> <span class='hs-layout'>(</span><span class='hs-conid'>MOV</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpImm</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>eax</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1765"></a>
<a name="line-1766"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>call</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>callinsns</span> <span class='hs-varop'>`appOL`</span>
<a name="line-1767"></a> <span class='hs-varid'>toOL</span> <span class='hs-layout'>(</span>
<a name="line-1768"></a> <span class='hs-comment'>-- Deallocate parameters after call for ccall;</span>
<a name="line-1769"></a> <span class='hs-comment'>-- but not for stdcall (callee does it)</span>
<a name="line-1770"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>if</span> <span class='hs-varid'>cconv</span> <span class='hs-varop'>==</span> <span class='hs-conid'>StdCallConv</span> <span class='hs-varop'>||</span> <span class='hs-varid'>real_size</span><span class='hs-varop'>==</span><span class='hs-num'>0</span> <span class='hs-keyword'>then</span> <span class='hs-conid'>[]</span> <span class='hs-keyword'>else</span>
<a name="line-1771"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>ADD</span> <span class='hs-layout'>(</span><span class='hs-varid'>intSize</span> <span class='hs-varid'>wordWidth</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpImm</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-varid'>real_size</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>esp</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-1772"></a> <span class='hs-varop'>++</span>
<a name="line-1773"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DELTA</span> <span class='hs-layout'>(</span><span class='hs-varid'>delta</span> <span class='hs-varop'>+</span> <span class='hs-varid'>real_size</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-1774"></a> <span class='hs-layout'>)</span>
<a name="line-1775"></a> <span class='hs-comment'>-- in</span>
<a name="line-1776"></a> <span class='hs-varid'>setDeltaNat</span> <span class='hs-layout'>(</span><span class='hs-varid'>delta</span> <span class='hs-varop'>+</span> <span class='hs-varid'>real_size</span><span class='hs-layout'>)</span>
<a name="line-1777"></a>
<a name="line-1778"></a> <span class='hs-keyword'>let</span>
<a name="line-1779"></a> <span class='hs-comment'>-- assign the results, if necessary</span>
<a name="line-1780"></a> <span class='hs-varid'>assign_code</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>nilOL</span>
<a name="line-1781"></a> <span class='hs-varid'>assign_code</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmHinted</span> <span class='hs-varid'>dest</span> <span class='hs-sel'>_hint</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>=</span>
<a name="line-1782"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>typeWidth</span> <span class='hs-varid'>rep</span> <span class='hs-keyword'>of</span>
<a name="line-1783"></a> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isFloatType</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>unitOL</span> <span class='hs-layout'>(</span><span class='hs-conid'>MOV</span> <span class='hs-layout'>(</span><span class='hs-varid'>floatSize</span> <span class='hs-conid'>W32</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>xmm0</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>r_dest</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1784"></a> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isFloatType</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>unitOL</span> <span class='hs-layout'>(</span><span class='hs-conid'>MOV</span> <span class='hs-layout'>(</span><span class='hs-varid'>floatSize</span> <span class='hs-conid'>W64</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>xmm0</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>r_dest</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1785"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>unitOL</span> <span class='hs-layout'>(</span><span class='hs-conid'>MOV</span> <span class='hs-layout'>(</span><span class='hs-varid'>cmmTypeSize</span> <span class='hs-varid'>rep</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>rax</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>r_dest</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1786"></a> <span class='hs-keyword'>where</span>
<a name="line-1787"></a> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>localRegType</span> <span class='hs-varid'>dest</span>
<a name="line-1788"></a> <span class='hs-varid'>r_dest</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getRegisterReg</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLocal</span> <span class='hs-varid'>dest</span><span class='hs-layout'>)</span>
<a name="line-1789"></a> <span class='hs-varid'>assign_code</span> <span class='hs-varid'>many</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>panic</span> <span class='hs-str'>"genCCall.assign_code many"</span>
<a name="line-1790"></a>
<a name="line-1791"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>load_args_code</span> <span class='hs-varop'>`appOL`</span>
<a name="line-1792"></a> <span class='hs-varid'>adjust_rsp</span> <span class='hs-varop'>`appOL`</span>
<a name="line-1793"></a> <span class='hs-varid'>push_code</span> <span class='hs-varop'>`appOL`</span>
<a name="line-1794"></a> <span class='hs-varid'>assign_eax</span> <span class='hs-varid'>sse_regs</span> <span class='hs-varop'>`appOL`</span>
<a name="line-1795"></a> <span class='hs-varid'>call</span> <span class='hs-varop'>`appOL`</span>
<a name="line-1796"></a> <span class='hs-varid'>assign_code</span> <span class='hs-varid'>dest_regs</span><span class='hs-layout'>)</span>
<a name="line-1797"></a>
<a name="line-1798"></a> <span class='hs-keyword'>where</span>
<a name="line-1799"></a> <span class='hs-varid'>arg_size</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>8</span> <span class='hs-comment'>-- always, at the mo</span>
<a name="line-1800"></a>
<a name="line-1801"></a> <span class='hs-varid'>load_args</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmHinted</span> <span class='hs-conid'>CmmExpr</span><span class='hs-keyglyph'>]</span>
<a name="line-1802"></a> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Reg</span><span class='hs-keyglyph'>]</span> <span class='hs-comment'>-- int regs avail for args</span>
<a name="line-1803"></a> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Reg</span><span class='hs-keyglyph'>]</span> <span class='hs-comment'>-- FP regs avail for args</span>
<a name="line-1804"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>InstrBlock</span>
<a name="line-1805"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmHinted</span> <span class='hs-conid'>CmmExpr</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span><span class='hs-keyglyph'>[</span><span class='hs-conid'>Reg</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span><span class='hs-keyglyph'>[</span><span class='hs-conid'>Reg</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span><span class='hs-conid'>InstrBlock</span><span class='hs-layout'>)</span>
<a name="line-1806"></a> <span class='hs-varid'>load_args</span> <span class='hs-varid'>args</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>args</span><span class='hs-layout'>,</span> <span class='hs-conid'>[]</span><span class='hs-layout'>,</span> <span class='hs-conid'>[]</span><span class='hs-layout'>,</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-1807"></a> <span class='hs-comment'>-- no more regs to use</span>
<a name="line-1808"></a> <span class='hs-varid'>load_args</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>aregs</span> <span class='hs-varid'>fregs</span> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>[]</span><span class='hs-layout'>,</span> <span class='hs-varid'>aregs</span><span class='hs-layout'>,</span> <span class='hs-varid'>fregs</span><span class='hs-layout'>,</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-1809"></a> <span class='hs-comment'>-- no more args to push</span>
<a name="line-1810"></a> <span class='hs-varid'>load_args</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>CmmHinted</span> <span class='hs-varid'>arg</span> <span class='hs-varid'>hint</span><span class='hs-layout'>)</span> <span class='hs-conop'>:</span> <span class='hs-varid'>rest</span><span class='hs-layout'>)</span> <span class='hs-varid'>aregs</span> <span class='hs-varid'>fregs</span> <span class='hs-varid'>code</span>
<a name="line-1811"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isFloatType</span> <span class='hs-varid'>arg_rep</span> <span class='hs-keyglyph'>=</span>
<a name="line-1812"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>fregs</span> <span class='hs-keyword'>of</span>
<a name="line-1813"></a> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>push_this_arg</span>
<a name="line-1814"></a> <span class='hs-layout'>(</span><span class='hs-varid'>r</span><span class='hs-conop'>:</span><span class='hs-varid'>rs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-1815"></a> <span class='hs-varid'>arg_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAnyReg</span> <span class='hs-varid'>arg</span>
<a name="line-1816"></a> <span class='hs-varid'>load_args</span> <span class='hs-varid'>rest</span> <span class='hs-varid'>aregs</span> <span class='hs-varid'>rs</span> <span class='hs-layout'>(</span><span class='hs-varid'>code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>arg_code</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span>
<a name="line-1817"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span>
<a name="line-1818"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>aregs</span> <span class='hs-keyword'>of</span>
<a name="line-1819"></a> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>push_this_arg</span>
<a name="line-1820"></a> <span class='hs-layout'>(</span><span class='hs-varid'>r</span><span class='hs-conop'>:</span><span class='hs-varid'>rs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-1821"></a> <span class='hs-varid'>arg_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAnyReg</span> <span class='hs-varid'>arg</span>
<a name="line-1822"></a> <span class='hs-varid'>load_args</span> <span class='hs-varid'>rest</span> <span class='hs-varid'>rs</span> <span class='hs-varid'>fregs</span> <span class='hs-layout'>(</span><span class='hs-varid'>code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>arg_code</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span>
<a name="line-1823"></a> <span class='hs-keyword'>where</span>
<a name="line-1824"></a> <span class='hs-varid'>arg_rep</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cmmExprType</span> <span class='hs-varid'>arg</span>
<a name="line-1825"></a>
<a name="line-1826"></a> <span class='hs-varid'>push_this_arg</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1827"></a> <span class='hs-layout'>(</span><span class='hs-varid'>args'</span><span class='hs-layout'>,</span><span class='hs-varid'>ars</span><span class='hs-layout'>,</span><span class='hs-varid'>frs</span><span class='hs-layout'>,</span><span class='hs-varid'>code'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>load_args</span> <span class='hs-varid'>rest</span> <span class='hs-varid'>aregs</span> <span class='hs-varid'>fregs</span> <span class='hs-varid'>code</span>
<a name="line-1828"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>CmmHinted</span> <span class='hs-varid'>arg</span> <span class='hs-varid'>hint</span><span class='hs-layout'>)</span><span class='hs-conop'>:</span><span class='hs-varid'>args'</span><span class='hs-layout'>,</span> <span class='hs-varid'>ars</span><span class='hs-layout'>,</span> <span class='hs-varid'>frs</span><span class='hs-layout'>,</span> <span class='hs-varid'>code'</span><span class='hs-layout'>)</span>
<a name="line-1829"></a>
<a name="line-1830"></a> <span class='hs-varid'>push_args</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varid'>code</span>
<a name="line-1831"></a> <span class='hs-varid'>push_args</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>CmmHinted</span> <span class='hs-varid'>arg</span> <span class='hs-varid'>hint</span><span class='hs-layout'>)</span><span class='hs-conop'>:</span><span class='hs-varid'>rest</span><span class='hs-layout'>)</span> <span class='hs-varid'>code</span>
<a name="line-1832"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isFloatType</span> <span class='hs-varid'>arg_rep</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1833"></a> <span class='hs-layout'>(</span><span class='hs-varid'>arg_reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>arg_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-varid'>arg</span>
<a name="line-1834"></a> <span class='hs-varid'>delta</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getDeltaNat</span>
<a name="line-1835"></a> <span class='hs-varid'>setDeltaNat</span> <span class='hs-layout'>(</span><span class='hs-varid'>delta</span><span class='hs-comment'>-</span><span class='hs-varid'>arg_size</span><span class='hs-layout'>)</span>
<a name="line-1836"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>code'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>arg_code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-1837"></a> <span class='hs-conid'>SUB</span> <span class='hs-layout'>(</span><span class='hs-varid'>intSize</span> <span class='hs-varid'>wordWidth</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpImm</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-varid'>arg_size</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>rsp</span><span class='hs-layout'>)</span> <span class='hs-layout'>,</span>
<a name="line-1838"></a> <span class='hs-conid'>DELTA</span> <span class='hs-layout'>(</span><span class='hs-varid'>delta</span><span class='hs-comment'>-</span><span class='hs-varid'>arg_size</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1839"></a> <span class='hs-conid'>MOV</span> <span class='hs-layout'>(</span><span class='hs-varid'>floatSize</span> <span class='hs-varid'>width</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>arg_reg</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-layout'>(</span><span class='hs-varid'>spRel</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-1840"></a> <span class='hs-varid'>push_args</span> <span class='hs-varid'>rest</span> <span class='hs-varid'>code'</span>
<a name="line-1841"></a>
<a name="line-1842"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1843"></a> <span class='hs-comment'>-- we only ever generate word-sized function arguments. Promotion</span>
<a name="line-1844"></a> <span class='hs-comment'>-- has already happened: our Int8# type is kept sign-extended</span>
<a name="line-1845"></a> <span class='hs-comment'>-- in an Int#, for example.</span>
<a name="line-1846"></a> <span class='hs-conid'>ASSERT</span><span class='hs-layout'>(</span><span class='hs-varid'>width</span> <span class='hs-varop'>==</span> <span class='hs-conid'>W64</span><span class='hs-layout'>)</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-1847"></a> <span class='hs-layout'>(</span><span class='hs-varid'>arg_op</span><span class='hs-layout'>,</span> <span class='hs-varid'>arg_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getOperand</span> <span class='hs-varid'>arg</span>
<a name="line-1848"></a> <span class='hs-varid'>delta</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getDeltaNat</span>
<a name="line-1849"></a> <span class='hs-varid'>setDeltaNat</span> <span class='hs-layout'>(</span><span class='hs-varid'>delta</span><span class='hs-comment'>-</span><span class='hs-varid'>arg_size</span><span class='hs-layout'>)</span>
<a name="line-1850"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>code'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>arg_code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-1851"></a> <span class='hs-conid'>PUSH</span> <span class='hs-conid'>II64</span> <span class='hs-varid'>arg_op</span><span class='hs-layout'>,</span>
<a name="line-1852"></a> <span class='hs-conid'>DELTA</span> <span class='hs-layout'>(</span><span class='hs-varid'>delta</span><span class='hs-comment'>-</span><span class='hs-varid'>arg_size</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-1853"></a> <span class='hs-varid'>push_args</span> <span class='hs-varid'>rest</span> <span class='hs-varid'>code'</span>
<a name="line-1854"></a> <span class='hs-keyword'>where</span>
<a name="line-1855"></a> <span class='hs-varid'>arg_rep</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cmmExprType</span> <span class='hs-varid'>arg</span>
<a name="line-1856"></a> <span class='hs-varid'>width</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>typeWidth</span> <span class='hs-varid'>arg_rep</span>
<a name="line-1857"></a>
<a name="line-1858"></a><span class='hs-cpp'>#else</span>
<a name="line-1859"></a><span class='hs-definition'>genCCall</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>panic</span> <span class='hs-str'>"X86.genCCAll: not defined"</span>
<a name="line-1860"></a>
<a name="line-1861"></a><span class='hs-cpp'>#endif /* x86_64_TARGET_ARCH */</span>
<a name="line-1862"></a>
<a name="line-1863"></a>
<a name="line-1864"></a>
<a name="line-1865"></a>
<a name="line-1866"></a><a name="outOfLineFloatOp"></a><span class='hs-definition'>outOfLineFloatOp</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CallishMachOp</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmFormal</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>HintedCmmActuals</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>InstrBlock</span>
<a name="line-1867"></a><span class='hs-definition'>outOfLineFloatOp</span> <span class='hs-varid'>mop</span> <span class='hs-varid'>res</span> <span class='hs-varid'>args</span>
<a name="line-1868"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1869"></a> <span class='hs-varid'>dflags</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getDynFlagsNat</span>
<a name="line-1870"></a> <span class='hs-varid'>targetExpr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>cmmMakeDynamicReference</span> <span class='hs-varid'>dflags</span> <span class='hs-varid'>addImportNat</span> <span class='hs-conid'>CallReference</span> <span class='hs-varid'>lbl</span>
<a name="line-1871"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>target</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CmmCallee</span> <span class='hs-varid'>targetExpr</span> <span class='hs-conid'>CCallConv</span>
<a name="line-1872"></a>
<a name="line-1873"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>isFloat64</span> <span class='hs-layout'>(</span><span class='hs-varid'>localRegType</span> <span class='hs-varid'>res</span><span class='hs-layout'>)</span>
<a name="line-1874"></a> <span class='hs-keyword'>then</span>
<a name="line-1875"></a> <span class='hs-varid'>stmtToInstrs</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmCall</span> <span class='hs-varid'>target</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmHinted</span> <span class='hs-varid'>res</span> <span class='hs-conid'>NoHint</span><span class='hs-keyglyph'>]</span> <span class='hs-varid'>args</span> <span class='hs-conid'>CmmUnsafe</span> <span class='hs-conid'>CmmMayReturn</span><span class='hs-layout'>)</span>
<a name="line-1876"></a> <span class='hs-keyword'>else</span> <span class='hs-keyword'>do</span>
<a name="line-1877"></a> <span class='hs-varid'>uq</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getUniqueNat</span>
<a name="line-1878"></a> <span class='hs-keyword'>let</span>
<a name="line-1879"></a> <span class='hs-varid'>tmp</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>LocalReg</span> <span class='hs-varid'>uq</span> <span class='hs-varid'>f64</span>
<a name="line-1880"></a> <span class='hs-comment'>-- in</span>
<a name="line-1881"></a> <span class='hs-varid'>code1</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>stmtToInstrs</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmCall</span> <span class='hs-varid'>target</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmHinted</span> <span class='hs-varid'>tmp</span> <span class='hs-conid'>NoHint</span><span class='hs-keyglyph'>]</span> <span class='hs-varid'>args</span> <span class='hs-conid'>CmmUnsafe</span> <span class='hs-conid'>CmmMayReturn</span><span class='hs-layout'>)</span>
<a name="line-1882"></a> <span class='hs-varid'>code2</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>stmtToInstrs</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmAssign</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLocal</span> <span class='hs-varid'>res</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmReg</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLocal</span> <span class='hs-varid'>tmp</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1883"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>code1</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>code2</span><span class='hs-layout'>)</span>
<a name="line-1884"></a> <span class='hs-keyword'>where</span>
<a name="line-1885"></a> <span class='hs-varid'>lbl</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mkForeignLabel</span> <span class='hs-varid'>fn</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>False</span> <span class='hs-conid'>IsFunction</span>
<a name="line-1886"></a>
<a name="line-1887"></a> <span class='hs-varid'>fn</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>mop</span> <span class='hs-keyword'>of</span>
<a name="line-1888"></a> <span class='hs-conid'>MO_F32_Sqrt</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"sqrtf"</span>
<a name="line-1889"></a> <span class='hs-conid'>MO_F32_Sin</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"sinf"</span>
<a name="line-1890"></a> <span class='hs-conid'>MO_F32_Cos</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"cosf"</span>
<a name="line-1891"></a> <span class='hs-conid'>MO_F32_Tan</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"tanf"</span>
<a name="line-1892"></a> <span class='hs-conid'>MO_F32_Exp</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"expf"</span>
<a name="line-1893"></a> <span class='hs-conid'>MO_F32_Log</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"logf"</span>
<a name="line-1894"></a>
<a name="line-1895"></a> <span class='hs-conid'>MO_F32_Asin</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"asinf"</span>
<a name="line-1896"></a> <span class='hs-conid'>MO_F32_Acos</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"acosf"</span>
<a name="line-1897"></a> <span class='hs-conid'>MO_F32_Atan</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"atanf"</span>
<a name="line-1898"></a>
<a name="line-1899"></a> <span class='hs-conid'>MO_F32_Sinh</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"sinhf"</span>
<a name="line-1900"></a> <span class='hs-conid'>MO_F32_Cosh</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"coshf"</span>
<a name="line-1901"></a> <span class='hs-conid'>MO_F32_Tanh</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"tanhf"</span>
<a name="line-1902"></a> <span class='hs-conid'>MO_F32_Pwr</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"powf"</span>
<a name="line-1903"></a>
<a name="line-1904"></a> <span class='hs-conid'>MO_F64_Sqrt</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"sqrt"</span>
<a name="line-1905"></a> <span class='hs-conid'>MO_F64_Sin</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"sin"</span>
<a name="line-1906"></a> <span class='hs-conid'>MO_F64_Cos</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"cos"</span>
<a name="line-1907"></a> <span class='hs-conid'>MO_F64_Tan</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"tan"</span>
<a name="line-1908"></a> <span class='hs-conid'>MO_F64_Exp</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"exp"</span>
<a name="line-1909"></a> <span class='hs-conid'>MO_F64_Log</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"log"</span>
<a name="line-1910"></a>
<a name="line-1911"></a> <span class='hs-conid'>MO_F64_Asin</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"asin"</span>
<a name="line-1912"></a> <span class='hs-conid'>MO_F64_Acos</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"acos"</span>
<a name="line-1913"></a> <span class='hs-conid'>MO_F64_Atan</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"atan"</span>
<a name="line-1914"></a>
<a name="line-1915"></a> <span class='hs-conid'>MO_F64_Sinh</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"sinh"</span>
<a name="line-1916"></a> <span class='hs-conid'>MO_F64_Cosh</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"cosh"</span>
<a name="line-1917"></a> <span class='hs-conid'>MO_F64_Tanh</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"tanh"</span>
<a name="line-1918"></a> <span class='hs-conid'>MO_F64_Pwr</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fsLit</span> <span class='hs-str'>"pow"</span>
<a name="line-1919"></a>
<a name="line-1920"></a>
<a name="line-1921"></a>
<a name="line-1922"></a>
<a name="line-1923"></a>
<a name="line-1924"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-1925"></a><span class='hs-comment'>-- Generating a table-branch</span>
<a name="line-1926"></a>
<a name="line-1927"></a><a name="genSwitch"></a><span class='hs-definition'>genSwitch</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Maybe</span> <span class='hs-conid'>BlockId</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>InstrBlock</span>
<a name="line-1928"></a>
<a name="line-1929"></a><span class='hs-definition'>genSwitch</span> <span class='hs-varid'>expr</span> <span class='hs-varid'>ids</span>
<a name="line-1930"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>opt_PIC</span>
<a name="line-1931"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1932"></a> <span class='hs-layout'>(</span><span class='hs-varid'>reg</span><span class='hs-layout'>,</span><span class='hs-varid'>e_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-varid'>expr</span>
<a name="line-1933"></a> <span class='hs-varid'>lbl</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewLabelNat</span>
<a name="line-1934"></a> <span class='hs-varid'>dflags</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getDynFlagsNat</span>
<a name="line-1935"></a> <span class='hs-varid'>dynRef</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>cmmMakeDynamicReference</span> <span class='hs-varid'>dflags</span> <span class='hs-varid'>addImportNat</span> <span class='hs-conid'>DataReference</span> <span class='hs-varid'>lbl</span>
<a name="line-1936"></a> <span class='hs-layout'>(</span><span class='hs-varid'>tableReg</span><span class='hs-layout'>,</span><span class='hs-varid'>t_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-varop'>$</span> <span class='hs-varid'>dynRef</span>
<a name="line-1937"></a> <span class='hs-keyword'>let</span>
<a name="line-1938"></a> <span class='hs-varid'>jumpTable</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>jumpTableEntryRel</span> <span class='hs-varid'>ids</span>
<a name="line-1939"></a>
<a name="line-1940"></a> <span class='hs-varid'>jumpTableEntryRel</span> <span class='hs-conid'>Nothing</span>
<a name="line-1941"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CmmStaticLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-num'>0</span> <span class='hs-varid'>wordWidth</span><span class='hs-layout'>)</span>
<a name="line-1942"></a> <span class='hs-varid'>jumpTableEntryRel</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>BlockId</span> <span class='hs-varid'>id</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1943"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CmmStaticLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLabelDiffOff</span> <span class='hs-varid'>blockLabel</span> <span class='hs-varid'>lbl</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span>
<a name="line-1944"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>blockLabel</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mkAsmTempLabel</span> <span class='hs-varid'>id</span>
<a name="line-1945"></a>
<a name="line-1946"></a> <span class='hs-varid'>op</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>OpAddr</span> <span class='hs-layout'>(</span><span class='hs-conid'>AddrBaseIndex</span> <span class='hs-layout'>(</span><span class='hs-conid'>EABaseReg</span> <span class='hs-varid'>tableReg</span><span class='hs-layout'>)</span>
<a name="line-1947"></a> <span class='hs-layout'>(</span><span class='hs-conid'>EAIndex</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>wORD_SIZE</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1948"></a>
<a name="line-1949"></a><span class='hs-cpp'>#if x86_64_TARGET_ARCH</span>
<a name="line-1950"></a><span class='hs-cpp'>#if darwin_TARGET_OS</span>
<a name="line-1951"></a> <span class='hs-comment'>-- on Mac OS X/x86_64, put the jump table in the text section</span>
<a name="line-1952"></a> <span class='hs-comment'>-- to work around a limitation of the linker.</span>
<a name="line-1953"></a> <span class='hs-comment'>-- ld64 is unable to handle the relocations for</span>
<a name="line-1954"></a> <span class='hs-comment'>-- .quad L1 - L0</span>
<a name="line-1955"></a> <span class='hs-comment'>-- if L0 is not preceded by a non-anonymous label in its section.</span>
<a name="line-1956"></a>
<a name="line-1957"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>e_code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>t_code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-1958"></a> <span class='hs-conid'>ADD</span> <span class='hs-layout'>(</span><span class='hs-varid'>intSize</span> <span class='hs-varid'>wordWidth</span><span class='hs-layout'>)</span> <span class='hs-varid'>op</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tableReg</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1959"></a> <span class='hs-conid'>JMP_TBL</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tableReg</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>id</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>id</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>ids</span> <span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span>
<a name="line-1960"></a> <span class='hs-conid'>LDATA</span> <span class='hs-conid'>Text</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmDataLabel</span> <span class='hs-varid'>lbl</span> <span class='hs-conop'>:</span> <span class='hs-varid'>jumpTable</span><span class='hs-layout'>)</span>
<a name="line-1961"></a> <span class='hs-keyglyph'>]</span>
<a name="line-1962"></a><span class='hs-cpp'>#else</span>
<a name="line-1963"></a> <span class='hs-comment'>-- HACK: On x86_64 binutils<2.17 is only able to generate PC32</span>
<a name="line-1964"></a> <span class='hs-comment'>-- relocations, hence we only get 32-bit offsets in the jump</span>
<a name="line-1965"></a> <span class='hs-comment'>-- table. As these offsets are always negative we need to properly</span>
<a name="line-1966"></a> <span class='hs-comment'>-- sign extend them to 64-bit. This hack should be removed in</span>
<a name="line-1967"></a> <span class='hs-comment'>-- conjunction with the hack in PprMach.hs/pprDataItem once</span>
<a name="line-1968"></a> <span class='hs-comment'>-- binutils 2.17 is standard.</span>
<a name="line-1969"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>e_code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>t_code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-1970"></a> <span class='hs-conid'>LDATA</span> <span class='hs-conid'>ReadOnlyData</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmDataLabel</span> <span class='hs-varid'>lbl</span> <span class='hs-conop'>:</span> <span class='hs-varid'>jumpTable</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1971"></a> <span class='hs-conid'>MOVSxL</span> <span class='hs-conid'>II32</span>
<a name="line-1972"></a> <span class='hs-layout'>(</span><span class='hs-conid'>OpAddr</span> <span class='hs-layout'>(</span><span class='hs-conid'>AddrBaseIndex</span> <span class='hs-layout'>(</span><span class='hs-conid'>EABaseReg</span> <span class='hs-varid'>tableReg</span><span class='hs-layout'>)</span>
<a name="line-1973"></a> <span class='hs-layout'>(</span><span class='hs-conid'>EAIndex</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>wORD_SIZE</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1974"></a> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>reg</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1975"></a> <span class='hs-conid'>ADD</span> <span class='hs-layout'>(</span><span class='hs-varid'>intSize</span> <span class='hs-varid'>wordWidth</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>reg</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tableReg</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1976"></a> <span class='hs-conid'>JMP_TBL</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tableReg</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>id</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>id</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>ids</span> <span class='hs-keyglyph'>]</span>
<a name="line-1977"></a> <span class='hs-keyglyph'>]</span>
<a name="line-1978"></a><span class='hs-cpp'>#endif</span>
<a name="line-1979"></a><span class='hs-cpp'>#else</span>
<a name="line-1980"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>e_code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>t_code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-1981"></a> <span class='hs-conid'>LDATA</span> <span class='hs-conid'>ReadOnlyData</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmDataLabel</span> <span class='hs-varid'>lbl</span> <span class='hs-conop'>:</span> <span class='hs-varid'>jumpTable</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1982"></a> <span class='hs-conid'>ADD</span> <span class='hs-layout'>(</span><span class='hs-varid'>intSize</span> <span class='hs-varid'>wordWidth</span><span class='hs-layout'>)</span> <span class='hs-varid'>op</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tableReg</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1983"></a> <span class='hs-conid'>JMP_TBL</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tableReg</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>id</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>id</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>ids</span> <span class='hs-keyglyph'>]</span>
<a name="line-1984"></a> <span class='hs-keyglyph'>]</span>
<a name="line-1985"></a><span class='hs-cpp'>#endif</span>
<a name="line-1986"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>code</span>
<a name="line-1987"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>
<a name="line-1988"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1989"></a> <span class='hs-layout'>(</span><span class='hs-varid'>reg</span><span class='hs-layout'>,</span><span class='hs-varid'>e_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-varid'>expr</span>
<a name="line-1990"></a> <span class='hs-varid'>lbl</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewLabelNat</span>
<a name="line-1991"></a> <span class='hs-keyword'>let</span>
<a name="line-1992"></a> <span class='hs-varid'>jumpTable</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>jumpTableEntry</span> <span class='hs-varid'>ids</span>
<a name="line-1993"></a> <span class='hs-varid'>op</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>OpAddr</span> <span class='hs-layout'>(</span><span class='hs-conid'>AddrBaseIndex</span> <span class='hs-conid'>EABaseNone</span> <span class='hs-layout'>(</span><span class='hs-conid'>EAIndex</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>wORD_SIZE</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmCLbl</span> <span class='hs-varid'>lbl</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1994"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>e_code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-1995"></a> <span class='hs-conid'>LDATA</span> <span class='hs-conid'>ReadOnlyData</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmDataLabel</span> <span class='hs-varid'>lbl</span> <span class='hs-conop'>:</span> <span class='hs-varid'>jumpTable</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1996"></a> <span class='hs-conid'>JMP_TBL</span> <span class='hs-varid'>op</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>id</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>id</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>ids</span> <span class='hs-keyglyph'>]</span>
<a name="line-1997"></a> <span class='hs-keyglyph'>]</span>
<a name="line-1998"></a> <span class='hs-comment'>-- in</span>
<a name="line-1999"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>code</span>
<a name="line-2000"></a>
<a name="line-2001"></a>
<a name="line-2002"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-2003"></a><span class='hs-comment'>-- 'condIntReg' and 'condFltReg': condition codes into registers</span>
<a name="line-2004"></a>
<a name="line-2005"></a><span class='hs-comment'>-- Turn those condition codes into integers now (when they appear on</span>
<a name="line-2006"></a><span class='hs-comment'>-- the right hand side of an assignment).</span>
<a name="line-2007"></a><span class='hs-comment'>-- </span>
<a name="line-2008"></a><span class='hs-comment'>-- (If applicable) Do not fill the delay slots here; you will confuse the</span>
<a name="line-2009"></a><span class='hs-comment'>-- register allocator.</span>
<a name="line-2010"></a>
<a name="line-2011"></a><a name="condIntReg"></a><span class='hs-definition'>condIntReg</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Cond</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>Register</span>
<a name="line-2012"></a>
<a name="line-2013"></a><span class='hs-definition'>condIntReg</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-2014"></a> <span class='hs-conid'>CondCode</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>cond_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>condIntCode</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-2015"></a> <span class='hs-varid'>tmp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegNat</span> <span class='hs-conid'>II8</span>
<a name="line-2016"></a> <span class='hs-keyword'>let</span>
<a name="line-2017"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cond_code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-2018"></a> <span class='hs-conid'>SETCC</span> <span class='hs-varid'>cond</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tmp</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-2019"></a> <span class='hs-conid'>MOVZxL</span> <span class='hs-conid'>II8</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tmp</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span>
<a name="line-2020"></a> <span class='hs-keyglyph'>]</span>
<a name="line-2021"></a> <span class='hs-comment'>-- in</span>
<a name="line-2022"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-2023"></a>
<a name="line-2024"></a>
<a name="line-2025"></a>
<a name="line-2026"></a><a name="condFltReg"></a><span class='hs-definition'>condFltReg</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Cond</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>Register</span>
<a name="line-2027"></a>
<a name="line-2028"></a><span class='hs-cpp'>#if i386_TARGET_ARCH</span>
<a name="line-2029"></a><span class='hs-definition'>condFltReg</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-2030"></a> <span class='hs-conid'>CondCode</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>cond_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>condFltCode</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-2031"></a> <span class='hs-varid'>tmp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegNat</span> <span class='hs-conid'>II8</span>
<a name="line-2032"></a> <span class='hs-keyword'>let</span>
<a name="line-2033"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cond_code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-2034"></a> <span class='hs-conid'>SETCC</span> <span class='hs-varid'>cond</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tmp</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-2035"></a> <span class='hs-conid'>MOVZxL</span> <span class='hs-conid'>II8</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tmp</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span>
<a name="line-2036"></a> <span class='hs-keyglyph'>]</span>
<a name="line-2037"></a> <span class='hs-comment'>-- in</span>
<a name="line-2038"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-2039"></a>
<a name="line-2040"></a><span class='hs-cpp'>#elif x86_64_TARGET_ARCH</span>
<a name="line-2041"></a><span class='hs-definition'>condFltReg</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-2042"></a> <span class='hs-conid'>CondCode</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>cond_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>condFltCode</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-2043"></a> <span class='hs-varid'>tmp1</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegNat</span> <span class='hs-varid'>archWordSize</span>
<a name="line-2044"></a> <span class='hs-varid'>tmp2</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegNat</span> <span class='hs-varid'>archWordSize</span>
<a name="line-2045"></a> <span class='hs-keyword'>let</span>
<a name="line-2046"></a> <span class='hs-comment'>-- We have to worry about unordered operands (eg. comparisons</span>
<a name="line-2047"></a> <span class='hs-comment'>-- against NaN). If the operands are unordered, the comparison</span>
<a name="line-2048"></a> <span class='hs-comment'>-- sets the parity flag, carry flag and zero flag.</span>
<a name="line-2049"></a> <span class='hs-comment'>-- All comparisons are supposed to return false for unordered</span>
<a name="line-2050"></a> <span class='hs-comment'>-- operands except for !=, which returns true.</span>
<a name="line-2051"></a> <span class='hs-comment'>--</span>
<a name="line-2052"></a> <span class='hs-comment'>-- Optimisation: we don't have to test the parity flag if we</span>
<a name="line-2053"></a> <span class='hs-comment'>-- know the test has already excluded the unordered case: eg ></span>
<a name="line-2054"></a> <span class='hs-comment'>-- and >= test for a zero carry flag, which can only occur for</span>
<a name="line-2055"></a> <span class='hs-comment'>-- ordered operands.</span>
<a name="line-2056"></a> <span class='hs-comment'>--</span>
<a name="line-2057"></a> <span class='hs-comment'>-- ToDo: by reversing comparisons we could avoid testing the</span>
<a name="line-2058"></a> <span class='hs-comment'>-- parity flag in more cases.</span>
<a name="line-2059"></a>
<a name="line-2060"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span>
<a name="line-2061"></a> <span class='hs-varid'>cond_code</span> <span class='hs-varop'>`appOL`</span>
<a name="line-2062"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>case</span> <span class='hs-varid'>cond</span> <span class='hs-keyword'>of</span>
<a name="line-2063"></a> <span class='hs-conid'>NE</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>or_unordered</span> <span class='hs-varid'>dst</span>
<a name="line-2064"></a> <span class='hs-conid'>GU</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>plain_test</span> <span class='hs-varid'>dst</span>
<a name="line-2065"></a> <span class='hs-conid'>GEU</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>plain_test</span> <span class='hs-varid'>dst</span>
<a name="line-2066"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>and_ordered</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span>
<a name="line-2067"></a>
<a name="line-2068"></a> <span class='hs-varid'>plain_test</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-2069"></a> <span class='hs-conid'>SETCC</span> <span class='hs-varid'>cond</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tmp1</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-2070"></a> <span class='hs-conid'>MOVZxL</span> <span class='hs-conid'>II8</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tmp1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span>
<a name="line-2071"></a> <span class='hs-keyglyph'>]</span>
<a name="line-2072"></a> <span class='hs-varid'>or_unordered</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-2073"></a> <span class='hs-conid'>SETCC</span> <span class='hs-varid'>cond</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tmp1</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-2074"></a> <span class='hs-conid'>SETCC</span> <span class='hs-conid'>PARITY</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tmp2</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-2075"></a> <span class='hs-conid'>OR</span> <span class='hs-conid'>II8</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tmp1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tmp2</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-2076"></a> <span class='hs-conid'>MOVZxL</span> <span class='hs-conid'>II8</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tmp2</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span>
<a name="line-2077"></a> <span class='hs-keyglyph'>]</span>
<a name="line-2078"></a> <span class='hs-varid'>and_ordered</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-2079"></a> <span class='hs-conid'>SETCC</span> <span class='hs-varid'>cond</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tmp1</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-2080"></a> <span class='hs-conid'>SETCC</span> <span class='hs-conid'>NOTPARITY</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tmp2</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-2081"></a> <span class='hs-conid'>AND</span> <span class='hs-conid'>II8</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tmp1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tmp2</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-2082"></a> <span class='hs-conid'>MOVZxL</span> <span class='hs-conid'>II8</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tmp2</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span>
<a name="line-2083"></a> <span class='hs-keyglyph'>]</span>
<a name="line-2084"></a> <span class='hs-comment'>-- in</span>
<a name="line-2085"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-2086"></a>
<a name="line-2087"></a><span class='hs-cpp'>#else</span>
<a name="line-2088"></a><span class='hs-definition'>condFltReg</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>panic</span> <span class='hs-str'>"X86.condFltReg: not defined"</span>
<a name="line-2089"></a>
<a name="line-2090"></a><span class='hs-cpp'>#endif</span>
<a name="line-2091"></a>
<a name="line-2092"></a>
<a name="line-2093"></a>
<a name="line-2094"></a>
<a name="line-2095"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-2096"></a><span class='hs-comment'>-- 'trivial*Code': deal with trivial instructions</span>
<a name="line-2097"></a>
<a name="line-2098"></a><span class='hs-comment'>-- Trivial (dyadic: 'trivialCode', floating-point: 'trivialFCode',</span>
<a name="line-2099"></a><span class='hs-comment'>-- unary: 'trivialUCode', unary fl-pt:'trivialUFCode') instructions.</span>
<a name="line-2100"></a><span class='hs-comment'>-- Only look for constants on the right hand side, because that's</span>
<a name="line-2101"></a><span class='hs-comment'>-- where the generic optimizer will have put them.</span>
<a name="line-2102"></a>
<a name="line-2103"></a><span class='hs-comment'>-- Similarly, for unary instructions, we don't have to worry about</span>
<a name="line-2104"></a><span class='hs-comment'>-- matching an StInt as the argument, because genericOpt will already</span>
<a name="line-2105"></a><span class='hs-comment'>-- have handled the constant-folding.</span>
<a name="line-2106"></a>
<a name="line-2107"></a>
<a name="line-2108"></a><span class='hs-comment'>{-
<a name="line-2109"></a>The Rules of the Game are:
<a name="line-2110"></a>
<a name="line-2111"></a>* You cannot assume anything about the destination register dst;
<a name="line-2112"></a> it may be anything, including a fixed reg.
<a name="line-2113"></a>
<a name="line-2114"></a>* You may compute an operand into a fixed reg, but you may not
<a name="line-2115"></a> subsequently change the contents of that fixed reg. If you
<a name="line-2116"></a> want to do so, first copy the value either to a temporary
<a name="line-2117"></a> or into dst. You are free to modify dst even if it happens
<a name="line-2118"></a> to be a fixed reg -- that's not your problem.
<a name="line-2119"></a>
<a name="line-2120"></a>* You cannot assume that a fixed reg will stay live over an
<a name="line-2121"></a> arbitrary computation. The same applies to the dst reg.
<a name="line-2122"></a>
<a name="line-2123"></a>* Temporary regs obtained from getNewRegNat are distinct from
<a name="line-2124"></a> each other and from all other regs, and stay live over
<a name="line-2125"></a> arbitrary computations.
<a name="line-2126"></a>
<a name="line-2127"></a>--------------------
<a name="line-2128"></a>
<a name="line-2129"></a>SDM's version of The Rules:
<a name="line-2130"></a>
<a name="line-2131"></a>* If getRegister returns Any, that means it can generate correct
<a name="line-2132"></a> code which places the result in any register, period. Even if that
<a name="line-2133"></a> register happens to be read during the computation.
<a name="line-2134"></a>
<a name="line-2135"></a> Corollary #1: this means that if you are generating code for an
<a name="line-2136"></a> operation with two arbitrary operands, you cannot assign the result
<a name="line-2137"></a> of the first operand into the destination register before computing
<a name="line-2138"></a> the second operand. The second operand might require the old value
<a name="line-2139"></a> of the destination register.
<a name="line-2140"></a>
<a name="line-2141"></a> Corollary #2: A function might be able to generate more efficient
<a name="line-2142"></a> code if it knows the destination register is a new temporary (and
<a name="line-2143"></a> therefore not read by any of the sub-computations).
<a name="line-2144"></a>
<a name="line-2145"></a>* If getRegister returns Any, then the code it generates may modify only:
<a name="line-2146"></a> (a) fresh temporaries
<a name="line-2147"></a> (b) the destination register
<a name="line-2148"></a> (c) known registers (eg. %ecx is used by shifts)
<a name="line-2149"></a> In particular, it may *not* modify global registers, unless the global
<a name="line-2150"></a> register happens to be the destination register.
<a name="line-2151"></a>-}</span>
<a name="line-2152"></a>
<a name="line-2153"></a><a name="trivialCode"></a><span class='hs-definition'>trivialCode</span> <span class='hs-varid'>width</span> <span class='hs-varid'>instr</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>revinstr</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-varid'>lit_a</span><span class='hs-layout'>)</span> <span class='hs-varid'>b</span>
<a name="line-2154"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>is32BitLit</span> <span class='hs-varid'>lit_a</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-2155"></a> <span class='hs-varid'>b_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAnyReg</span> <span class='hs-varid'>b</span>
<a name="line-2156"></a> <span class='hs-keyword'>let</span>
<a name="line-2157"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span>
<a name="line-2158"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>b_code</span> <span class='hs-varid'>dst</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-2159"></a> <span class='hs-varid'>revinstr</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpImm</span> <span class='hs-layout'>(</span><span class='hs-varid'>litToImm</span> <span class='hs-varid'>lit_a</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span>
<a name="line-2160"></a> <span class='hs-comment'>-- in</span>
<a name="line-2161"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-layout'>(</span><span class='hs-varid'>intSize</span> <span class='hs-varid'>width</span><span class='hs-layout'>)</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-2162"></a>
<a name="line-2163"></a><span class='hs-definition'>trivialCode</span> <span class='hs-varid'>width</span> <span class='hs-varid'>instr</span> <span class='hs-varid'>maybe_revinstr</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span>
<a name="line-2164"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>genTrivialCode</span> <span class='hs-layout'>(</span><span class='hs-varid'>intSize</span> <span class='hs-varid'>width</span><span class='hs-layout'>)</span> <span class='hs-varid'>instr</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span>
<a name="line-2165"></a>
<a name="line-2166"></a><a name="genTrivialCode"></a><span class='hs-comment'>-- This is re-used for floating pt instructions too.</span>
<a name="line-2167"></a><span class='hs-definition'>genTrivialCode</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>instr</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-2168"></a> <span class='hs-layout'>(</span><span class='hs-varid'>b_op</span><span class='hs-layout'>,</span> <span class='hs-varid'>b_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNonClobberedOperand</span> <span class='hs-varid'>b</span>
<a name="line-2169"></a> <span class='hs-varid'>a_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAnyReg</span> <span class='hs-varid'>a</span>
<a name="line-2170"></a> <span class='hs-varid'>tmp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegNat</span> <span class='hs-varid'>rep</span>
<a name="line-2171"></a> <span class='hs-keyword'>let</span>
<a name="line-2172"></a> <span class='hs-comment'>-- We want the value of b to stay alive across the computation of a.</span>
<a name="line-2173"></a> <span class='hs-comment'>-- But, we want to calculate a straight into the destination register,</span>
<a name="line-2174"></a> <span class='hs-comment'>-- because the instruction only has two operands (dst := dst `op` src).</span>
<a name="line-2175"></a> <span class='hs-comment'>-- The troublesome case is when the result of b is in the same register</span>
<a name="line-2176"></a> <span class='hs-comment'>-- as the destination reg. In this case, we have to save b in a</span>
<a name="line-2177"></a> <span class='hs-comment'>-- new temporary across the computation of a.</span>
<a name="line-2178"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span>
<a name="line-2179"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>dst</span> <span class='hs-varop'>`regClashesWithOp`</span> <span class='hs-varid'>b_op</span> <span class='hs-keyglyph'>=</span>
<a name="line-2180"></a> <span class='hs-varid'>b_code</span> <span class='hs-varop'>`appOL`</span>
<a name="line-2181"></a> <span class='hs-varid'>unitOL</span> <span class='hs-layout'>(</span><span class='hs-conid'>MOV</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>b_op</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tmp</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varop'>`appOL`</span>
<a name="line-2182"></a> <span class='hs-varid'>a_code</span> <span class='hs-varid'>dst</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-2183"></a> <span class='hs-varid'>instr</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>tmp</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span>
<a name="line-2184"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span>
<a name="line-2185"></a> <span class='hs-varid'>b_code</span> <span class='hs-varop'>`appOL`</span>
<a name="line-2186"></a> <span class='hs-varid'>a_code</span> <span class='hs-varid'>dst</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-2187"></a> <span class='hs-varid'>instr</span> <span class='hs-varid'>b_op</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span>
<a name="line-2188"></a> <span class='hs-comment'>-- in</span>
<a name="line-2189"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-2190"></a>
<a name="line-2191"></a><a name="regClashesWithOp"></a><span class='hs-definition'>reg</span> <span class='hs-varop'>`regClashesWithOp`</span> <span class='hs-conid'>OpReg</span> <span class='hs-varid'>reg2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reg</span> <span class='hs-varop'>==</span> <span class='hs-varid'>reg2</span>
<a name="line-2192"></a><a name="regClashesWithOp"></a><span class='hs-definition'>reg</span> <span class='hs-varop'>`regClashesWithOp`</span> <span class='hs-conid'>OpAddr</span> <span class='hs-varid'>amode</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>any</span> <span class='hs-layout'>(</span><span class='hs-varop'>==</span><span class='hs-varid'>reg</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>addrModeRegs</span> <span class='hs-varid'>amode</span><span class='hs-layout'>)</span>
<a name="line-2193"></a><a name="regClashesWithOp"></a><span class='hs-definition'>reg</span> <span class='hs-varop'>`regClashesWithOp`</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-2194"></a>
<a name="line-2195"></a><span class='hs-comment'>-----------</span>
<a name="line-2196"></a>
<a name="line-2197"></a><a name="trivialUCode"></a><span class='hs-definition'>trivialUCode</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>instr</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-2198"></a> <span class='hs-varid'>x_code</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getAnyReg</span> <span class='hs-varid'>x</span>
<a name="line-2199"></a> <span class='hs-keyword'>let</span>
<a name="line-2200"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span>
<a name="line-2201"></a> <span class='hs-varid'>x_code</span> <span class='hs-varid'>dst</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-2202"></a> <span class='hs-varid'>instr</span> <span class='hs-layout'>(</span><span class='hs-conid'>OpReg</span> <span class='hs-varid'>dst</span><span class='hs-layout'>)</span>
<a name="line-2203"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-2204"></a>
<a name="line-2205"></a><span class='hs-comment'>-----------</span>
<a name="line-2206"></a>
<a name="line-2207"></a><span class='hs-cpp'>#if i386_TARGET_ARCH</span>
<a name="line-2208"></a>
<a name="line-2209"></a><a name="trivialFCode"></a><span class='hs-definition'>trivialFCode</span> <span class='hs-varid'>width</span> <span class='hs-varid'>instr</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-2210"></a> <span class='hs-layout'>(</span><span class='hs-varid'>x_reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>x_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNonClobberedReg</span> <span class='hs-varid'>x</span> <span class='hs-comment'>-- these work for float regs too</span>
<a name="line-2211"></a> <span class='hs-layout'>(</span><span class='hs-varid'>y_reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>y_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-varid'>y</span>
<a name="line-2212"></a> <span class='hs-keyword'>let</span>
<a name="line-2213"></a> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>floatSize</span> <span class='hs-varid'>width</span>
<a name="line-2214"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span>
<a name="line-2215"></a> <span class='hs-varid'>x_code</span> <span class='hs-varop'>`appOL`</span>
<a name="line-2216"></a> <span class='hs-varid'>y_code</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-2217"></a> <span class='hs-varid'>instr</span> <span class='hs-varid'>size</span> <span class='hs-varid'>x_reg</span> <span class='hs-varid'>y_reg</span> <span class='hs-varid'>dst</span>
<a name="line-2218"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-varid'>size</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-2219"></a>
<a name="line-2220"></a><span class='hs-cpp'>#endif</span>
<a name="line-2221"></a>
<a name="line-2222"></a><span class='hs-cpp'>#if x86_64_TARGET_ARCH</span>
<a name="line-2223"></a><span class='hs-definition'>trivialFCode</span> <span class='hs-varid'>pk</span> <span class='hs-varid'>instr</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-2224"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>genTrivialCode</span> <span class='hs-varid'>size</span> <span class='hs-layout'>(</span><span class='hs-varid'>instr</span> <span class='hs-varid'>size</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-2225"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>floatSize</span> <span class='hs-varid'>pk</span>
<a name="line-2226"></a><span class='hs-cpp'>#endif</span>
<a name="line-2227"></a>
<a name="line-2228"></a><a name="trivialUFCode"></a><span class='hs-definition'>trivialUFCode</span> <span class='hs-varid'>size</span> <span class='hs-varid'>instr</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-2229"></a> <span class='hs-layout'>(</span><span class='hs-varid'>x_reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>x_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-varid'>x</span>
<a name="line-2230"></a> <span class='hs-keyword'>let</span>
<a name="line-2231"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span>
<a name="line-2232"></a> <span class='hs-varid'>x_code</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-2233"></a> <span class='hs-varid'>instr</span> <span class='hs-varid'>x_reg</span> <span class='hs-varid'>dst</span>
<a name="line-2234"></a> <span class='hs-comment'>-- in</span>
<a name="line-2235"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-varid'>size</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-2236"></a>
<a name="line-2237"></a>
<a name="line-2238"></a><a name="coerceInt2FP"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-2239"></a><span class='hs-definition'>coerceInt2FP</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Width</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Width</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>Register</span>
<a name="line-2240"></a>
<a name="line-2241"></a><span class='hs-cpp'>#if i386_TARGET_ARCH</span>
<a name="line-2242"></a><span class='hs-definition'>coerceInt2FP</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-2243"></a> <span class='hs-layout'>(</span><span class='hs-varid'>x_reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>x_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-varid'>x</span>
<a name="line-2244"></a> <span class='hs-keyword'>let</span>
<a name="line-2245"></a> <span class='hs-varid'>opc</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>to</span> <span class='hs-keyword'>of</span> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GITOF</span><span class='hs-layout'>;</span> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GITOD</span>
<a name="line-2246"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x_code</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-varid'>opc</span> <span class='hs-varid'>x_reg</span> <span class='hs-varid'>dst</span>
<a name="line-2247"></a> <span class='hs-comment'>-- ToDo: works for non-II32 reps?</span>
<a name="line-2248"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-layout'>(</span><span class='hs-varid'>floatSize</span> <span class='hs-varid'>to</span><span class='hs-layout'>)</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-2249"></a>
<a name="line-2250"></a><span class='hs-cpp'>#elif x86_64_TARGET_ARCH</span>
<a name="line-2251"></a><span class='hs-definition'>coerceInt2FP</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-2252"></a> <span class='hs-layout'>(</span><span class='hs-varid'>x_op</span><span class='hs-layout'>,</span> <span class='hs-varid'>x_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getOperand</span> <span class='hs-varid'>x</span> <span class='hs-comment'>-- ToDo: could be a safe operand</span>
<a name="line-2253"></a> <span class='hs-keyword'>let</span>
<a name="line-2254"></a> <span class='hs-varid'>opc</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>to</span> <span class='hs-keyword'>of</span> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CVTSI2SS</span><span class='hs-layout'>;</span> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CVTSI2SD</span>
<a name="line-2255"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x_code</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-varid'>opc</span> <span class='hs-varid'>x_op</span> <span class='hs-varid'>dst</span>
<a name="line-2256"></a> <span class='hs-comment'>-- in</span>
<a name="line-2257"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-layout'>(</span><span class='hs-varid'>floatSize</span> <span class='hs-varid'>to</span><span class='hs-layout'>)</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- works even if the destination rep is <II32</span>
<a name="line-2258"></a>
<a name="line-2259"></a><span class='hs-cpp'>#else</span>
<a name="line-2260"></a><span class='hs-definition'>coerceInt2FP</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>panic</span> <span class='hs-str'>"X86.coerceInt2FP: not defined"</span>
<a name="line-2261"></a>
<a name="line-2262"></a><span class='hs-cpp'>#endif</span>
<a name="line-2263"></a>
<a name="line-2264"></a>
<a name="line-2265"></a>
<a name="line-2266"></a>
<a name="line-2267"></a><a name="coerceFP2Int"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-2268"></a><span class='hs-definition'>coerceFP2Int</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Width</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Width</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>Register</span>
<a name="line-2269"></a>
<a name="line-2270"></a><span class='hs-cpp'>#if i386_TARGET_ARCH</span>
<a name="line-2271"></a><span class='hs-definition'>coerceFP2Int</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-2272"></a> <span class='hs-layout'>(</span><span class='hs-varid'>x_reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>x_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-varid'>x</span>
<a name="line-2273"></a> <span class='hs-keyword'>let</span>
<a name="line-2274"></a> <span class='hs-varid'>opc</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>from</span> <span class='hs-keyword'>of</span> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GFTOI</span><span class='hs-layout'>;</span> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GDTOI</span>
<a name="line-2275"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x_code</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-varid'>opc</span> <span class='hs-varid'>x_reg</span> <span class='hs-varid'>dst</span>
<a name="line-2276"></a> <span class='hs-comment'>-- ToDo: works for non-II32 reps?</span>
<a name="line-2277"></a> <span class='hs-comment'>-- in</span>
<a name="line-2278"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-layout'>(</span><span class='hs-varid'>intSize</span> <span class='hs-varid'>to</span><span class='hs-layout'>)</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-2279"></a>
<a name="line-2280"></a><span class='hs-cpp'>#elif x86_64_TARGET_ARCH</span>
<a name="line-2281"></a><span class='hs-definition'>coerceFP2Int</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-2282"></a> <span class='hs-layout'>(</span><span class='hs-varid'>x_op</span><span class='hs-layout'>,</span> <span class='hs-varid'>x_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getOperand</span> <span class='hs-varid'>x</span> <span class='hs-comment'>-- ToDo: could be a safe operand</span>
<a name="line-2283"></a> <span class='hs-keyword'>let</span>
<a name="line-2284"></a> <span class='hs-varid'>opc</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>from</span> <span class='hs-keyword'>of</span> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CVTTSS2SIQ</span><span class='hs-layout'>;</span> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CVTTSD2SIQ</span>
<a name="line-2285"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x_code</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-varid'>opc</span> <span class='hs-varid'>x_op</span> <span class='hs-varid'>dst</span>
<a name="line-2286"></a> <span class='hs-comment'>-- in</span>
<a name="line-2287"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-layout'>(</span><span class='hs-varid'>intSize</span> <span class='hs-varid'>to</span><span class='hs-layout'>)</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- works even if the destination rep is <II32</span>
<a name="line-2288"></a>
<a name="line-2289"></a><span class='hs-cpp'>#else</span>
<a name="line-2290"></a><span class='hs-definition'>coerceFP2Int</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>panic</span> <span class='hs-str'>"X86.coerceFP2Int: not defined"</span>
<a name="line-2291"></a>
<a name="line-2292"></a><span class='hs-cpp'>#endif</span>
<a name="line-2293"></a>
<a name="line-2294"></a>
<a name="line-2295"></a>
<a name="line-2296"></a>
<a name="line-2297"></a><a name="coerceFP2FP"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-2298"></a><span class='hs-definition'>coerceFP2FP</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Width</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>Register</span>
<a name="line-2299"></a>
<a name="line-2300"></a><span class='hs-cpp'>#if x86_64_TARGET_ARCH</span>
<a name="line-2301"></a><span class='hs-definition'>coerceFP2FP</span> <span class='hs-varid'>to</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-2302"></a> <span class='hs-layout'>(</span><span class='hs-varid'>x_reg</span><span class='hs-layout'>,</span> <span class='hs-varid'>x_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-varid'>x</span>
<a name="line-2303"></a> <span class='hs-keyword'>let</span>
<a name="line-2304"></a> <span class='hs-varid'>opc</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>to</span> <span class='hs-keyword'>of</span> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CVTSD2SS</span><span class='hs-layout'>;</span> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CVTSS2SD</span>
<a name="line-2305"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x_code</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-varid'>opc</span> <span class='hs-varid'>x_reg</span> <span class='hs-varid'>dst</span>
<a name="line-2306"></a> <span class='hs-comment'>-- in</span>
<a name="line-2307"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Any</span> <span class='hs-layout'>(</span><span class='hs-varid'>floatSize</span> <span class='hs-varid'>to</span><span class='hs-layout'>)</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-2308"></a>
<a name="line-2309"></a><span class='hs-cpp'>#else</span>
<a name="line-2310"></a><span class='hs-definition'>coerceFP2FP</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>panic</span> <span class='hs-str'>"X86.coerceFP2FP: not defined"</span>
<a name="line-2311"></a>
<a name="line-2312"></a><span class='hs-cpp'>#endif</span>
<a name="line-2313"></a>
<a name="line-2314"></a>
<a name="line-2315"></a>
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