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<pre><a name="line-1"></a><span class='hs-comment'>{-# OPTIONS -w #-}</span>
<a name="line-2"></a>
<a name="line-3"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-4"></a><span class='hs-comment'>--</span>
<a name="line-5"></a><span class='hs-comment'>-- Generating machine code (instruction selection)</span>
<a name="line-6"></a><span class='hs-comment'>--</span>
<a name="line-7"></a><span class='hs-comment'>-- (c) The University of Glasgow 1996-2004</span>
<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>
<a name="line-11"></a><span class='hs-comment'>-- This is a big module, but, if you pay attention to</span>
<a name="line-12"></a><span class='hs-comment'>-- (a) the sectioning, (b) the type signatures, and</span>
<a name="line-13"></a><span class='hs-comment'>-- (c) the #if blah_TARGET_ARCH} things, the</span>
<a name="line-14"></a><span class='hs-comment'>-- structure should not be too overwhelming.</span>
<a name="line-15"></a>
<a name="line-16"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>PPC</span><span class='hs-varop'>.</span><span class='hs-conid'>CodeGen</span> <span class='hs-layout'>(</span>
<a name="line-17"></a> <span class='hs-varid'>cmmTopCodeGen</span><span class='hs-layout'>,</span>
<a name="line-18"></a> <span class='hs-conid'>InstrBlock</span>
<a name="line-19"></a><span class='hs-layout'>)</span>
<a name="line-20"></a>
<a name="line-21"></a><span class='hs-keyword'>where</span>
<a name="line-22"></a>
<a name="line-23"></a><span class='hs-cpp'>#include "HsVersions.h"</span>
<a name="line-24"></a><span class='hs-cpp'>#include "nativeGen/NCG.h"</span>
<a name="line-25"></a><span class='hs-cpp'>#include "../includes/MachDeps.h"</span>
<a name="line-26"></a>
<a name="line-27"></a><span class='hs-comment'>-- NCG stuff:</span>
<a name="line-28"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>PPC</span><span class='hs-varop'>.</span><span class='hs-conid'>Instr</span>
<a name="line-29"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>PPC</span><span class='hs-varop'>.</span><span class='hs-conid'>Cond</span>
<a name="line-30"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>PPC</span><span class='hs-varop'>.</span><span class='hs-conid'>Regs</span>
<a name="line-31"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>PPC</span><span class='hs-varop'>.</span><span class='hs-conid'>RegInfo</span>
<a name="line-32"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>NCGMonad</span>
<a name="line-33"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Instruction</span>
<a name="line-34"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>PIC</span>
<a name="line-35"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Size</span>
<a name="line-36"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>RegClass</span>
<a name="line-37"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Reg</span>
<a name="line-38"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>TargetReg</span>
<a name="line-39"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Platform</span>
<a name="line-40"></a>
<a name="line-41"></a><span class='hs-comment'>-- Our intermediate code:</span>
<a name="line-42"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>BlockId</span>
<a name="line-43"></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-44"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Cmm</span>
<a name="line-45"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>CLabel</span>
<a name="line-46"></a>
<a name="line-47"></a><span class='hs-comment'>-- The rest:</span>
<a name="line-48"></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-49"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>OrdList</span>
<a name="line-50"></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-51"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Outputable</span>
<a name="line-52"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>DynFlags</span>
<a name="line-53"></a>
<a name="line-54"></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-55"></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-56"></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-57"></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-58"></a>
<a name="line-59"></a><span class='hs-cpp'>#if darwin_TARGET_OS || linux_TARGET_OS</span>
<a name="line-60"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>BasicTypes</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-cpp'>#endif</span>
<a name="line-63"></a>
<a name="line-64"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-65"></a><span class='hs-comment'>-- Top-level of the instruction selector</span>
<a name="line-66"></a>
<a name="line-67"></a><span class='hs-comment'>-- | 'InstrBlock's are the insn sequences generated by the insn selectors.</span>
<a name="line-68"></a><span class='hs-comment'>-- They are really trees of insns to facilitate fast appending, where a</span>
<a name="line-69"></a><span class='hs-comment'>-- left-to-right traversal (pre-order?) yields the insns in the correct</span>
<a name="line-70"></a><span class='hs-comment'>-- order.</span>
<a name="line-71"></a>
<a name="line-72"></a><a name="cmmTopCodeGen"></a><span class='hs-definition'>cmmTopCodeGen</span>
<a name="line-73"></a> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DynFlags</span>
<a name="line-74"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>RawCmmTop</span>
<a name="line-75"></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-76"></a>
<a name="line-77"></a><span class='hs-definition'>cmmTopCodeGen</span> <span class='hs-varid'>dflags</span> <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-78"></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-79"></a> <span class='hs-varid'>picBaseMb</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getPicBaseMaybeNat</span>
<a name="line-80"></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'>$</span> <span class='hs-varid'>concat</span> <span class='hs-varid'>nat_blocks</span><span class='hs-layout'>)</span>
<a name="line-81"></a> <span class='hs-varid'>tops</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>proc</span> <span class='hs-conop'>:</span> <span class='hs-varid'>concat</span> <span class='hs-varid'>statics</span>
<a name="line-82"></a> <span class='hs-varid'>os</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>platformOS</span> <span class='hs-varop'>$</span> <span class='hs-varid'>targetPlatform</span> <span class='hs-varid'>dflags</span>
<a name="line-83"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>picBaseMb</span> <span class='hs-keyword'>of</span>
<a name="line-84"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>picBase</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>initializePicBase_ppc</span> <span class='hs-conid'>ArchPPC</span> <span class='hs-varid'>os</span> <span class='hs-varid'>picBase</span> <span class='hs-varid'>tops</span>
<a name="line-85"></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-86"></a>
<a name="line-87"></a><span class='hs-definition'>cmmTopCodeGen</span> <span class='hs-varid'>dflags</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-88"></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-89"></a>
<a name="line-90"></a><a name="basicBlockCodeGen"></a><span class='hs-definition'>basicBlockCodeGen</span>
<a name="line-91"></a> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmBasicBlock</span>
<a name="line-92"></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-93"></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-94"></a>
<a name="line-95"></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-96"></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-97"></a> <span class='hs-comment'>-- code generation may introduce new basic block boundaries, which</span>
<a name="line-98"></a> <span class='hs-comment'>-- are indicated by the NEWBLOCK instruction. We must split up the</span>
<a name="line-99"></a> <span class='hs-comment'>-- instruction stream into basic blocks again. Also, we extract</span>
<a name="line-100"></a> <span class='hs-comment'>-- LDATAs here too.</span>
<a name="line-101"></a> <span class='hs-keyword'>let</span>
<a name="line-102"></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-103"></a>
<a name="line-104"></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-105"></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-106"></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-107"></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-108"></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-109"></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-110"></a> <span class='hs-comment'>-- in</span>
<a name="line-111"></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-112"></a>
<a name="line-113"></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-114"></a><span class='hs-definition'>stmtsToInstrs</span> <span class='hs-varid'>stmts</span>
<a name="line-115"></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-116"></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-117"></a>
<a name="line-118"></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-119"></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-120"></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-121"></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-122"></a>
<a name="line-123"></a> <span class='hs-conid'>CmmAssign</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>src</span>
<a name="line-124"></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-125"></a><span class='hs-cpp'>#if WORD_SIZE_IN_BITS==32</span>
<a name="line-126"></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-127"></a><span class='hs-cpp'>#endif</span>
<a name="line-128"></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-129"></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-130"></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-131"></a>
<a name="line-132"></a> <span class='hs-conid'>CmmStore</span> <span class='hs-varid'>addr</span> <span class='hs-varid'>src</span>
<a name="line-133"></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-134"></a><span class='hs-cpp'>#if WORD_SIZE_IN_BITS==32</span>
<a name="line-135"></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-136"></a><span class='hs-cpp'>#endif</span>
<a name="line-137"></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-138"></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-139"></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-140"></a>
<a name="line-141"></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-142"></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-143"></a>
<a name="line-144"></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-145"></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-146"></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-147"></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-148"></a> <span class='hs-conid'>CmmReturn</span> <span class='hs-varid'>params</span> <span class='hs-keyglyph'>-></span>
<a name="line-149"></a> <span class='hs-varid'>panic</span> <span class='hs-str'>"stmtToInstrs: return statement should have been cps'd away"</span>
<a name="line-150"></a>
<a name="line-151"></a>
<a name="line-152"></a><a name="InstrBlock"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-153"></a><a name="InstrBlock"></a><span class='hs-comment'>-- | 'InstrBlock's are the insn sequences generated by the insn selectors.</span>
<a name="line-154"></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-155"></a><a name="InstrBlock"></a><span class='hs-comment'>-- left-to-right traversal yields the insns in the correct order.</span>
<a name="line-156"></a><a name="InstrBlock"></a><span class='hs-comment'>--</span>
<a name="line-157"></a><a name="InstrBlock"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>InstrBlock</span>
<a name="line-158"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>OrdList</span> <span class='hs-conid'>Instr</span>
<a name="line-159"></a>
<a name="line-160"></a>
<a name="line-161"></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-162"></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-163"></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-164"></a><a name="Register"></a><span class='hs-comment'>-- register to put it in.</span>
<a name="line-165"></a><a name="Register"></a><span class='hs-comment'>--</span>
<a name="line-166"></a><a name="Register"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Register</span>
<a name="line-167"></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-168"></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-169"></a>
<a name="line-170"></a>
<a name="line-171"></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-172"></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-173"></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-174"></a>
<a name="line-175"></a>
<a name="line-176"></a><a name="getRegisterReg"></a><span class='hs-comment'>-- | Grab the Reg for a CmmReg</span>
<a name="line-177"></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-178"></a>
<a name="line-179"></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-180"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>RegVirtual</span> <span class='hs-varop'>$</span> <span class='hs-varid'>mkVirtualReg</span> <span class='hs-varid'>u</span> <span class='hs-layout'>(</span><span class='hs-varid'>cmmTypeSize</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span>
<a name="line-181"></a>
<a name="line-182"></a><span class='hs-definition'>getRegisterReg</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmGlobal</span> <span class='hs-varid'>mid</span><span class='hs-layout'>)</span>
<a name="line-183"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>get_GlobalReg_reg_or_addr</span> <span class='hs-varid'>mid</span> <span class='hs-keyword'>of</span>
<a name="line-184"></a> <span class='hs-conid'>Left</span> <span class='hs-varid'>reg</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>reg</span>
<a name="line-185"></a> <span class='hs-sel'>_other</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>pprPanic</span> <span class='hs-str'>"getRegisterReg-memory"</span> <span class='hs-layout'>(</span><span class='hs-varid'>ppr</span> <span class='hs-varop'>$</span> <span class='hs-conid'>CmmGlobal</span> <span class='hs-varid'>mid</span><span class='hs-layout'>)</span>
<a name="line-186"></a> <span class='hs-comment'>-- By this stage, the only MagicIds remaining should be the</span>
<a name="line-187"></a> <span class='hs-comment'>-- ones which map to a real machine register on this</span>
<a name="line-188"></a> <span class='hs-comment'>-- platform. Hence ...</span>
<a name="line-189"></a>
<a name="line-190"></a>
<a name="line-191"></a><span class='hs-comment'>{-
<a name="line-192"></a>Now, given a tree (the argument to an CmmLoad) that references memory,
<a name="line-193"></a>produce a suitable addressing mode.
<a name="line-194"></a>
<a name="line-195"></a>A Rule of the Game (tm) for Amodes: use of the addr bit must
<a name="line-196"></a>immediately follow use of the code part, since the code part puts
<a name="line-197"></a>values in registers which the addr then refers to. So you can't put
<a name="line-198"></a>anything in between, lest it overwrite some of those registers. If
<a name="line-199"></a>you need to do some other computation between the code part and use of
<a name="line-200"></a>the addr bit, first store the effective address from the amode in a
<a name="line-201"></a>temporary, then do the other computation, and then use the temporary:
<a name="line-202"></a>
<a name="line-203"></a> code
<a name="line-204"></a> LEA amode, tmp
<a name="line-205"></a> ... other computation ...
<a name="line-206"></a> ... (tmp) ...
<a name="line-207"></a>-}</span>
<a name="line-208"></a>
<a name="line-209"></a>
<a name="line-210"></a><a name="is32BitInteger"></a><span class='hs-comment'>-- | Check whether an integer will fit in 32 bits.</span>
<a name="line-211"></a><span class='hs-comment'>-- A CmmInt is intended to be truncated to the appropriate </span>
<a name="line-212"></a><span class='hs-comment'>-- number of bits, so here we truncate it to Int64. This is</span>
<a name="line-213"></a><span class='hs-comment'>-- important because e.g. -1 as a CmmInt might be either</span>
<a name="line-214"></a><span class='hs-comment'>-- -1 or 18446744073709551615.</span>
<a name="line-215"></a><span class='hs-comment'>--</span>
<a name="line-216"></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-217"></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-218"></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-219"></a>
<a name="line-220"></a>
<a name="line-221"></a><a name="jumpTableEntry"></a><span class='hs-comment'>-- | Convert a BlockId to some CmmStatic data</span>
<a name="line-222"></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-223"></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-224"></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-225"></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-226"></a>
<a name="line-227"></a>
<a name="line-228"></a>
<a name="line-229"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-230"></a><span class='hs-comment'>-- General things for putting together code sequences</span>
<a name="line-231"></a>
<a name="line-232"></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-233"></a><span class='hs-comment'>-- CmmExprs into CmmRegOff?</span>
<a name="line-234"></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-235"></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-236"></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-237"></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-238"></a>
<a name="line-239"></a><span class='hs-definition'>mangleIndexTree</span> <span class='hs-keyword'>_</span>
<a name="line-240"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>panic</span> <span class='hs-str'>"PPC.CodeGen.mangleIndexTree: no match"</span>
<a name="line-241"></a>
<a name="line-242"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-243"></a><span class='hs-comment'>-- Code gen for 64-bit arithmetic on 32-bit platforms</span>
<a name="line-244"></a>
<a name="line-245"></a><span class='hs-comment'>{-
<a name="line-246"></a>Simple support for generating 64-bit code (ie, 64 bit values and 64
<a name="line-247"></a>bit assignments) on 32-bit platforms. Unlike the main code generator
<a name="line-248"></a>we merely shoot for generating working code as simply as possible, and
<a name="line-249"></a>pay little attention to code quality. Specifically, there is no
<a name="line-250"></a>attempt to deal cleverly with the fixed-vs-floating register
<a name="line-251"></a>distinction; all values are generated into (pairs of) floating
<a name="line-252"></a>registers, even if this would mean some redundant reg-reg moves as a
<a name="line-253"></a>result. Only one of the VRegUniques is returned, since it will be
<a name="line-254"></a>of the VRegUniqueLo form, and the upper-half VReg can be determined
<a name="line-255"></a>by applying getHiVRegFromLo to it.
<a name="line-256"></a>-}</span>
<a name="line-257"></a>
<a name="line-258"></a><a name="ChildCode64"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>ChildCode64</span> <span class='hs-comment'>-- a.k.a "Register64"</span>
<a name="line-259"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ChildCode64</span>
<a name="line-260"></a> <span class='hs-conid'>InstrBlock</span> <span class='hs-comment'>-- code</span>
<a name="line-261"></a> <span class='hs-conid'>Reg</span> <span class='hs-comment'>-- the lower 32-bit temporary which contains the</span>
<a name="line-262"></a> <span class='hs-comment'>-- result; use getHiVRegFromLo to find the other</span>
<a name="line-263"></a> <span class='hs-comment'>-- VRegUnique. Rules of this simplified insn</span>
<a name="line-264"></a> <span class='hs-comment'>-- selection game are therefore that the returned</span>
<a name="line-265"></a> <span class='hs-comment'>-- Reg may be modified</span>
<a name="line-266"></a>
<a name="line-267"></a>
<a name="line-268"></a><a name="getSomeReg"></a><span class='hs-comment'>-- | The dual to getAnyReg: compute an expression into a register, but</span>
<a name="line-269"></a><span class='hs-comment'>-- we don't mind which one it is.</span>
<a name="line-270"></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-271"></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-272"></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-273"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>r</span> <span class='hs-keyword'>of</span>
<a name="line-274"></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-275"></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-276"></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-277"></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-278"></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-279"></a>
<a name="line-280"></a><a name="getI64Amodes"></a><span class='hs-definition'>getI64Amodes</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'>AddrMode</span><span class='hs-layout'>,</span> <span class='hs-conid'>AddrMode</span><span class='hs-layout'>,</span> <span class='hs-conid'>InstrBlock</span><span class='hs-layout'>)</span>
<a name="line-281"></a><span class='hs-definition'>getI64Amodes</span> <span class='hs-varid'>addrTree</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-282"></a> <span class='hs-conid'>Amode</span> <span class='hs-varid'>hi_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-283"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>addrOffset</span> <span class='hs-varid'>hi_addr</span> <span class='hs-num'>4</span> <span class='hs-keyword'>of</span>
<a name="line-284"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>lo_addr</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>hi_addr</span><span class='hs-layout'>,</span> <span class='hs-varid'>lo_addr</span><span class='hs-layout'>,</span> <span class='hs-varid'>addr_code</span><span class='hs-layout'>)</span>
<a name="line-285"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-layout'>(</span><span class='hs-varid'>hi_ptr</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'>addrTree</span>
<a name="line-286"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>AddrRegImm</span> <span class='hs-varid'>hi_ptr</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-287"></a> <span class='hs-conid'>AddrRegImm</span> <span class='hs-varid'>hi_ptr</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-num'>4</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-288"></a> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-289"></a>
<a name="line-290"></a>
<a name="line-291"></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-292"></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-293"></a> <span class='hs-layout'>(</span><span class='hs-varid'>hi_addr</span><span class='hs-layout'>,</span> <span class='hs-varid'>lo_addr</span><span class='hs-layout'>,</span> <span class='hs-varid'>addr_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getI64Amodes</span> <span class='hs-varid'>addrTree</span>
<a name="line-294"></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-295"></a> <span class='hs-keyword'>let</span>
<a name="line-296"></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-297"></a>
<a name="line-298"></a> <span class='hs-comment'>-- Big-endian store</span>
<a name="line-299"></a> <span class='hs-varid'>mov_hi</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ST</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>rhi</span> <span class='hs-varid'>hi_addr</span>
<a name="line-300"></a> <span class='hs-varid'>mov_lo</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ST</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>rlo</span> <span class='hs-varid'>lo_addr</span>
<a name="line-301"></a> <span class='hs-comment'>-- in</span>
<a name="line-302"></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-303"></a>
<a name="line-304"></a>
<a name="line-305"></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-306"></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-307"></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-308"></a> <span class='hs-keyword'>let</span>
<a name="line-309"></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-310"></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-311"></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-312"></a> <span class='hs-varid'>mov_lo</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>MR</span> <span class='hs-varid'>r_dst_lo</span> <span class='hs-varid'>r_src_lo</span>
<a name="line-313"></a> <span class='hs-varid'>mov_hi</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>MR</span> <span class='hs-varid'>r_dst_hi</span> <span class='hs-varid'>r_src_hi</span>
<a name="line-314"></a> <span class='hs-comment'>-- in</span>
<a name="line-315"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span>
<a name="line-316"></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-317"></a> <span class='hs-layout'>)</span>
<a name="line-318"></a>
<a name="line-319"></a><span class='hs-definition'>assignReg_I64Code</span> <span class='hs-varid'>lvalue</span> <span class='hs-varid'>valueTree</span>
<a name="line-320"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>panic</span> <span class='hs-str'>"assignReg_I64Code(powerpc): invalid lvalue"</span>
<a name="line-321"></a>
<a name="line-322"></a>
<a name="line-323"></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-324"></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-325"></a> <span class='hs-layout'>(</span><span class='hs-varid'>hi_addr</span><span class='hs-layout'>,</span> <span class='hs-varid'>lo_addr</span><span class='hs-layout'>,</span> <span class='hs-varid'>addr_code</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getI64Amodes</span> <span class='hs-varid'>addrTree</span>
<a name="line-326"></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-327"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>mov_hi</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>LD</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>rhi</span> <span class='hs-varid'>hi_addr</span>
<a name="line-328"></a> <span class='hs-varid'>mov_lo</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>LD</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>rlo</span> <span class='hs-varid'>lo_addr</span>
<a name="line-329"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <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-330"></a> <span class='hs-varid'>rlo</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'>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-333"></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-334"></a>
<a name="line-335"></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-336"></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-337"></a> <span class='hs-keyword'>let</span>
<a name="line-338"></a> <span class='hs-varid'>half0</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'>Word16</span><span class='hs-layout'>)</span>
<a name="line-339"></a> <span class='hs-varid'>half1</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'>16</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word16</span><span class='hs-layout'>)</span>
<a name="line-340"></a> <span class='hs-varid'>half2</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'>Word16</span><span class='hs-layout'>)</span>
<a name="line-341"></a> <span class='hs-varid'>half3</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'>48</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word16</span><span class='hs-layout'>)</span>
<a name="line-342"></a>
<a name="line-343"></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-344"></a> <span class='hs-conid'>LIS</span> <span class='hs-varid'>rlo</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-varid'>half1</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-345"></a> <span class='hs-conid'>OR</span> <span class='hs-varid'>rlo</span> <span class='hs-varid'>rlo</span> <span class='hs-layout'>(</span><span class='hs-conid'>RIImm</span> <span class='hs-varop'>$</span> <span class='hs-conid'>ImmInt</span> <span class='hs-varid'>half0</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-346"></a> <span class='hs-conid'>LIS</span> <span class='hs-varid'>rhi</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-varid'>half3</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-347"></a> <span class='hs-conid'>OR</span> <span class='hs-varid'>rlo</span> <span class='hs-varid'>rlo</span> <span class='hs-layout'>(</span><span class='hs-conid'>RIImm</span> <span class='hs-varop'>$</span> <span class='hs-conid'>ImmInt</span> <span class='hs-varid'>half2</span><span class='hs-layout'>)</span>
<a name="line-348"></a> <span class='hs-keyglyph'>]</span>
<a name="line-349"></a> <span class='hs-comment'>-- in</span>
<a name="line-350"></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-351"></a>
<a name="line-352"></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-353"></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-354"></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-355"></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-356"></a> <span class='hs-keyword'>let</span>
<a name="line-357"></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-358"></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-359"></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-360"></a> <span class='hs-varid'>code2</span> <span class='hs-varop'>`appOL`</span>
<a name="line-361"></a> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span> <span class='hs-conid'>ADDC</span> <span class='hs-varid'>rlo</span> <span class='hs-varid'>r1lo</span> <span class='hs-varid'>r2lo</span><span class='hs-layout'>,</span>
<a name="line-362"></a> <span class='hs-conid'>ADDE</span> <span class='hs-varid'>rhi</span> <span class='hs-varid'>r1hi</span> <span class='hs-varid'>r2hi</span> <span class='hs-keyglyph'>]</span>
<a name="line-363"></a> <span class='hs-comment'>-- in</span>
<a name="line-364"></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-365"></a>
<a name="line-366"></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-conid'>W32</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-367"></a> <span class='hs-layout'>(</span><span class='hs-varid'>expr_reg</span><span class='hs-layout'>,</span><span class='hs-varid'>expr_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-368"></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-369"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>mov_hi</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>LI</span> <span class='hs-varid'>rhi</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span>
<a name="line-370"></a> <span class='hs-varid'>mov_lo</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>MR</span> <span class='hs-varid'>rlo</span> <span class='hs-varid'>expr_reg</span>
<a name="line-371"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>ChildCode64</span> <span class='hs-layout'>(</span><span class='hs-varid'>expr_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-372"></a> <span class='hs-varid'>rlo</span>
<a name="line-373"></a><span class='hs-definition'>iselExpr64</span> <span class='hs-varid'>expr</span>
<a name="line-374"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pprPanic</span> <span class='hs-str'>"iselExpr64(powerpc)"</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-375"></a>
<a name="line-376"></a>
<a name="line-377"></a>
<a name="line-378"></a><a name="getRegister"></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-379"></a>
<a name="line-380"></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-381"></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-382"></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-383"></a>
<a name="line-384"></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-385"></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-386"></a>
<a name="line-387"></a>
<a name="line-388"></a><span class='hs-cpp'>#if WORD_SIZE_IN_BITS==32</span>
<a name="line-389"></a> <span class='hs-comment'>-- for 32-bit architectuers, support some 64 -> 32 bit conversions:</span>
<a name="line-390"></a> <span class='hs-comment'>-- TO_W_(x), TO_W_(x >> 32)</span>
<a name="line-391"></a>
<a name="line-392"></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-393"></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-394"></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-395"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Fixed</span> <span class='hs-conid'>II32</span> <span class='hs-layout'>(</span><span class='hs-varid'>getHiVRegFromLo</span> <span class='hs-varid'>rlo</span><span class='hs-layout'>)</span> <span class='hs-varid'>code</span>
<a name="line-396"></a>
<a name="line-397"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W64</span> <span class='hs-conid'>W32</span><span class='hs-layout'>)</span>
<a name="line-398"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_U_Shr</span> <span class='hs-conid'>W64</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span><span class='hs-conid'>CmmLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-num'>32</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-399"></a> <span class='hs-conid'>ChildCode64</span> <span class='hs-varid'>code</span> <span class='hs-varid'>rlo</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>iselExpr64</span> <span class='hs-varid'>x</span>
<a name="line-400"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</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-401"></a>
<a name="line-402"></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-403"></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-404"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Fixed</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>rlo</span> <span class='hs-varid'>code</span>
<a name="line-405"></a>
<a name="line-406"></a><span class='hs-definition'>getRegister</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W64</span> <span class='hs-conid'>W32</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-407"></a> <span class='hs-conid'>ChildCode64</span> <span class='hs-varid'>code</span> <span class='hs-varid'>rlo</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>iselExpr64</span> <span class='hs-varid'>x</span>
<a name="line-408"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</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-409"></a>
<a name="line-410"></a><span class='hs-cpp'>#endif</span>
<a name="line-411"></a>
<a name="line-412"></a>
<a name="line-413"></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-414"></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-415"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-416"></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'>mem</span>
<a name="line-417"></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-conid'>ASSERT</span><span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>targetClassOfReg</span> <span class='hs-varid'>dst</span> <span class='hs-varop'>==</span> <span class='hs-conid'>RcDouble</span><span class='hs-layout'>)</span> <span class='hs-varop'>==</span> <span class='hs-varid'>isFloatType</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span>
<a name="line-418"></a> <span class='hs-varid'>addr_code</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>LD</span> <span class='hs-varid'>size</span> <span class='hs-varid'>dst</span> <span class='hs-varid'>addr</span>
<a name="line-419"></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-420"></a> <span class='hs-keyword'>where</span> <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-421"></a>
<a name="line-422"></a><span class='hs-comment'>-- catch simple cases of zero- or sign-extended load</span>
<a name="line-423"></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'>mem</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-424"></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'>mem</span>
<a name="line-425"></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-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>dst</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>addr_code</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>LD</span> <span class='hs-conid'>II8</span> <span class='hs-varid'>dst</span> <span class='hs-varid'>addr</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-426"></a>
<a name="line-427"></a><span class='hs-comment'>-- Note: there is no Load Byte Arithmetic instruction, so no signed case here</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'>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'>mem</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-430"></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'>mem</span>
<a name="line-431"></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-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>dst</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>addr_code</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>LD</span> <span class='hs-conid'>II16</span> <span class='hs-varid'>dst</span> <span class='hs-varid'>addr</span><span class='hs-layout'>)</span><span class='hs-layout'>)</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'>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'>mem</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-434"></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'>mem</span>
<a name="line-435"></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-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>dst</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>addr_code</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>LA</span> <span class='hs-conid'>II16</span> <span class='hs-varid'>dst</span> <span class='hs-varid'>addr</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-436"></a>
<a name="line-437"></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-438"></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-439"></a> <span class='hs-conid'>MO_Not</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>triv_ucode_int</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>NOT</span>
<a name="line-440"></a>
<a name="line-441"></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_float</span> <span class='hs-varid'>w</span> <span class='hs-conid'>FNEG</span>
<a name="line-442"></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_int</span> <span class='hs-varid'>w</span> <span class='hs-conid'>NEG</span>
<a name="line-443"></a>
<a name="line-444"></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'>trivialUCode</span> <span class='hs-conid'>FF32</span> <span class='hs-conid'>FRSP</span> <span class='hs-varid'>x</span>
<a name="line-445"></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-446"></a>
<a name="line-447"></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-448"></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-449"></a>
<a name="line-450"></a> <span class='hs-conid'>MO_SS_Conv</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span>
<a name="line-451"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>from</span> <span class='hs-varop'>==</span> <span class='hs-varid'>to</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'>to</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span>
<a name="line-452"></a>
<a name="line-453"></a> <span class='hs-comment'>-- narrowing is a nop: we treat the high bits as undefined</span>
<a name="line-454"></a> <span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W32</span> <span class='hs-varid'>to</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'>to</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span>
<a name="line-455"></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'>conversionNop</span> <span class='hs-conid'>II8</span> <span class='hs-varid'>x</span>
<a name="line-456"></a> <span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W8</span> <span class='hs-varid'>to</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>triv_ucode_int</span> <span class='hs-varid'>to</span> <span class='hs-layout'>(</span><span class='hs-conid'>EXTS</span> <span class='hs-conid'>II8</span><span class='hs-layout'>)</span>
<a name="line-457"></a> <span class='hs-conid'>MO_SS_Conv</span> <span class='hs-conid'>W16</span> <span class='hs-varid'>to</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>triv_ucode_int</span> <span class='hs-varid'>to</span> <span class='hs-layout'>(</span><span class='hs-conid'>EXTS</span> <span class='hs-conid'>II16</span><span class='hs-layout'>)</span>
<a name="line-458"></a>
<a name="line-459"></a> <span class='hs-conid'>MO_UU_Conv</span> <span class='hs-varid'>from</span> <span class='hs-varid'>to</span>
<a name="line-460"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>from</span> <span class='hs-varop'>==</span> <span class='hs-varid'>to</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'>to</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span>
<a name="line-461"></a> <span class='hs-comment'>-- narrowing is a nop: we treat the high bits as undefined</span>
<a name="line-462"></a> <span class='hs-conid'>MO_UU_Conv</span> <span class='hs-conid'>W32</span> <span class='hs-varid'>to</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'>to</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span>
<a name="line-463"></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'>conversionNop</span> <span class='hs-conid'>II8</span> <span class='hs-varid'>x</span>
<a name="line-464"></a> <span class='hs-conid'>MO_UU_Conv</span> <span class='hs-conid'>W8</span> <span class='hs-varid'>to</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialCode</span> <span class='hs-varid'>to</span> <span class='hs-conid'>False</span> <span class='hs-conid'>AND</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'>255</span> <span class='hs-conid'>W32</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-465"></a> <span class='hs-conid'>MO_UU_Conv</span> <span class='hs-conid'>W16</span> <span class='hs-varid'>to</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialCode</span> <span class='hs-varid'>to</span> <span class='hs-conid'>False</span> <span class='hs-conid'>AND</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'>65535</span> <span class='hs-conid'>W32</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-466"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>panic</span> <span class='hs-str'>"PPC.CodeGen.getRegister: no match"</span>
<a name="line-467"></a>
<a name="line-468"></a> <span class='hs-keyword'>where</span>
<a name="line-469"></a> <span class='hs-varid'>triv_ucode_int</span> <span class='hs-varid'>width</span> <span class='hs-varid'>instr</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>trivialUCode</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'>x</span>
<a name="line-470"></a> <span class='hs-varid'>triv_ucode_float</span> <span class='hs-varid'>width</span> <span class='hs-varid'>instr</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>trivialUCode</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-varid'>instr</span> <span class='hs-varid'>x</span>
<a name="line-471"></a>
<a name="line-472"></a> <span class='hs-varid'>conversionNop</span> <span class='hs-varid'>new_size</span> <span class='hs-varid'>expr</span>
<a name="line-473"></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-474"></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-475"></a>
<a name="line-476"></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-layout'>,</span> <span class='hs-varid'>y</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- dyadic PrimOps</span>
<a name="line-477"></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-478"></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-479"></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-480"></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-481"></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-482"></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-483"></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-484"></a>
<a name="line-485"></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-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-486"></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-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-487"></a>
<a name="line-488"></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-layout'>(</span><span class='hs-varid'>extendSExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendSExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-489"></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-layout'>(</span><span class='hs-varid'>extendSExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendSExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-490"></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-layout'>(</span><span class='hs-varid'>extendSExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendSExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-491"></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-layout'>(</span><span class='hs-varid'>extendSExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendSExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-492"></a>
<a name="line-493"></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-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-494"></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-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-495"></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-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-496"></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-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-497"></a>
<a name="line-498"></a> <span class='hs-conid'>MO_F_Add</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>triv_float</span> <span class='hs-varid'>w</span> <span class='hs-conid'>FADD</span>
<a name="line-499"></a> <span class='hs-conid'>MO_F_Sub</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>triv_float</span> <span class='hs-varid'>w</span> <span class='hs-conid'>FSUB</span>
<a name="line-500"></a> <span class='hs-conid'>MO_F_Mul</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>triv_float</span> <span class='hs-varid'>w</span> <span class='hs-conid'>FMUL</span>
<a name="line-501"></a> <span class='hs-conid'>MO_F_Quot</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>triv_float</span> <span class='hs-varid'>w</span> <span class='hs-conid'>FDIV</span>
<a name="line-502"></a>
<a name="line-503"></a> <span class='hs-comment'>-- optimize addition with 32-bit immediate</span>
<a name="line-504"></a> <span class='hs-comment'>-- (needed for PIC)</span>
<a name="line-505"></a> <span class='hs-conid'>MO_Add</span> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span>
<a name="line-506"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>y</span> <span class='hs-keyword'>of</span>
<a name="line-507"></a> <span class='hs-conid'>CmmLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-varid'>imm</span> <span class='hs-varid'>immrep</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>makeImmediate</span> <span class='hs-conid'>W32</span> <span class='hs-conid'>True</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-varid'>imm</span><span class='hs-layout'>)</span>
<a name="line-508"></a> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialCode</span> <span class='hs-conid'>W32</span> <span class='hs-conid'>True</span> <span class='hs-conid'>ADD</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-varop'>$</span> <span class='hs-conid'>CmmInt</span> <span class='hs-varid'>imm</span> <span class='hs-varid'>immrep</span><span class='hs-layout'>)</span>
<a name="line-509"></a> <span class='hs-conid'>CmmLit</span> <span class='hs-varid'>lit</span>
<a name="line-510"></a> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-511"></a> <span class='hs-layout'>(</span><span class='hs-varid'>src</span><span class='hs-layout'>,</span> <span class='hs-varid'>srcCode</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-512"></a> <span class='hs-keyword'>let</span> <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-513"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>srcCode</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-514"></a> <span class='hs-conid'>ADDIS</span> <span class='hs-varid'>dst</span> <span class='hs-varid'>src</span> <span class='hs-layout'>(</span><span class='hs-conid'>HA</span> <span class='hs-varid'>imm</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-515"></a> <span class='hs-conid'>ADD</span> <span class='hs-varid'>dst</span> <span class='hs-varid'>dst</span> <span class='hs-layout'>(</span><span class='hs-conid'>RIImm</span> <span class='hs-layout'>(</span><span class='hs-conid'>LO</span> <span class='hs-varid'>imm</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-516"></a> <span class='hs-keyglyph'>]</span>
<a name="line-517"></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-518"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialCode</span> <span class='hs-conid'>W32</span> <span class='hs-conid'>True</span> <span class='hs-conid'>ADD</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-519"></a>
<a name="line-520"></a> <span class='hs-conid'>MO_Add</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialCode</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>True</span> <span class='hs-conid'>ADD</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-521"></a> <span class='hs-conid'>MO_Sub</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span>
<a name="line-522"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>y</span> <span class='hs-keyword'>of</span> <span class='hs-comment'>-- subfi ('substract from' with immediate) doesn't exist</span>
<a name="line-523"></a> <span class='hs-conid'>CmmLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-varid'>imm</span> <span class='hs-varid'>immrep</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>makeImmediate</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>True</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-varid'>imm</span><span class='hs-layout'>)</span>
<a name="line-524"></a> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialCode</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>True</span> <span class='hs-conid'>ADD</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmLit</span> <span class='hs-varop'>$</span> <span class='hs-conid'>CmmInt</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-varid'>imm</span><span class='hs-layout'>)</span> <span class='hs-varid'>immrep</span><span class='hs-layout'>)</span>
<a name="line-525"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialCodeNoImm'</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-conid'>SUBF</span> <span class='hs-varid'>y</span> <span class='hs-varid'>x</span>
<a name="line-526"></a>
<a name="line-527"></a> <span class='hs-conid'>MO_Mul</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialCode</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>True</span> <span class='hs-conid'>MULLW</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-528"></a>
<a name="line-529"></a> <span class='hs-conid'>MO_S_MulMayOflo</span> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialCodeNoImm'</span> <span class='hs-conid'>II32</span> <span class='hs-conid'>MULLW_MayOflo</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-530"></a>
<a name="line-531"></a> <span class='hs-conid'>MO_S_MulMayOflo</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>panic</span> <span class='hs-str'>"S_MulMayOflo (rep /= II32): not implemented"</span>
<a name="line-532"></a> <span class='hs-conid'>MO_U_MulMayOflo</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>panic</span> <span class='hs-str'>"U_MulMayOflo: not implemented"</span>
<a name="line-533"></a>
<a name="line-534"></a> <span class='hs-conid'>MO_S_Quot</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialCodeNoImm'</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-conid'>DIVW</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendSExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendSExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-535"></a> <span class='hs-conid'>MO_U_Quot</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialCodeNoImm'</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-conid'>DIVWU</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-536"></a>
<a name="line-537"></a> <span class='hs-conid'>MO_S_Rem</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>remainderCode</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>DIVW</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendSExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendSExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-538"></a> <span class='hs-conid'>MO_U_Rem</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>remainderCode</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>DIVWU</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-539"></a>
<a name="line-540"></a> <span class='hs-conid'>MO_And</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialCode</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>False</span> <span class='hs-conid'>AND</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-541"></a> <span class='hs-conid'>MO_Or</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialCode</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>False</span> <span class='hs-conid'>OR</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-542"></a> <span class='hs-conid'>MO_Xor</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialCode</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>False</span> <span class='hs-conid'>XOR</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-543"></a>
<a name="line-544"></a> <span class='hs-conid'>MO_Shl</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialCode</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>False</span> <span class='hs-conid'>SLW</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-545"></a> <span class='hs-conid'>MO_S_Shr</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialCode</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>False</span> <span class='hs-conid'>SRAW</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendSExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varid'>y</span>
<a name="line-546"></a> <span class='hs-conid'>MO_U_Shr</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trivialCode</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>False</span> <span class='hs-conid'>SRW</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varid'>y</span>
<a name="line-547"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>panic</span> <span class='hs-str'>"PPC.CodeGen.getRegister: no match"</span>
<a name="line-548"></a>
<a name="line-549"></a> <span class='hs-keyword'>where</span>
<a name="line-550"></a> <span class='hs-varid'>triv_float</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Width</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'>Reg</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><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>Register</span>
<a name="line-551"></a> <span class='hs-varid'>triv_float</span> <span class='hs-varid'>width</span> <span class='hs-varid'>instr</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>trivialCodeNoImm</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-varid'>instr</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-552"></a>
<a name="line-553"></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-varid'>i</span> <span class='hs-varid'>rep</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-554"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>imm</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>makeImmediate</span> <span class='hs-varid'>rep</span> <span class='hs-conid'>True</span> <span class='hs-varid'>i</span>
<a name="line-555"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span>
<a name="line-556"></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'>LI</span> <span class='hs-varid'>dst</span> <span class='hs-varid'>imm</span><span class='hs-layout'>)</span>
<a name="line-557"></a> <span class='hs-keyword'>in</span>
<a name="line-558"></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'>rep</span><span class='hs-layout'>)</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-559"></a>
<a name="line-560"></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'>frep</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-561"></a> <span class='hs-varid'>lbl</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewLabelNat</span>
<a name="line-562"></a> <span class='hs-varid'>dflags</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getDynFlagsNat</span>
<a name="line-563"></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-564"></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-565"></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'>frep</span>
<a name="line-566"></a> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span>
<a name="line-567"></a> <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-568"></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'>frep</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-569"></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> <span class='hs-conid'>LD</span> <span class='hs-varid'>size</span> <span class='hs-varid'>dst</span> <span class='hs-varid'>addr</span><span class='hs-layout'>)</span>
<a name="line-570"></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-571"></a>
<a name="line-572"></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-573"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cmmLitType</span> <span class='hs-varid'>lit</span>
<a name="line-574"></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-575"></a> <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-576"></a> <span class='hs-conid'>LIS</span> <span class='hs-varid'>dst</span> <span class='hs-layout'>(</span><span class='hs-conid'>HA</span> <span class='hs-varid'>imm</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-577"></a> <span class='hs-conid'>ADD</span> <span class='hs-varid'>dst</span> <span class='hs-varid'>dst</span> <span class='hs-layout'>(</span><span class='hs-conid'>RIImm</span> <span class='hs-layout'>(</span><span class='hs-conid'>LO</span> <span class='hs-varid'>imm</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-578"></a> <span class='hs-keyglyph'>]</span>
<a name="line-579"></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-layout'>(</span><span class='hs-varid'>cmmTypeSize</span> <span class='hs-varid'>rep</span><span class='hs-layout'>)</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-580"></a>
<a name="line-581"></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(ppc)"</span> <span class='hs-layout'>(</span><span class='hs-varid'>pprExpr</span> <span class='hs-varid'>other</span><span class='hs-layout'>)</span>
<a name="line-582"></a>
<a name="line-583"></a> <span class='hs-comment'>-- extend?Rep: wrap integer expression of type rep</span>
<a name="line-584"></a> <span class='hs-comment'>-- in a conversion to II32</span>
<a name="line-585"></a><a name="extendSExpr"></a><span class='hs-definition'>extendSExpr</span> <span class='hs-conid'>W32</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span>
<a name="line-586"></a><span class='hs-definition'>extendSExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_SS_Conv</span> <span class='hs-varid'>rep</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>
<a name="line-587"></a><a name="extendUExpr"></a><span class='hs-definition'>extendUExpr</span> <span class='hs-conid'>W32</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span>
<a name="line-588"></a><span class='hs-definition'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CmmMachOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>MO_UU_Conv</span> <span class='hs-varid'>rep</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>
<a name="line-589"></a>
<a name="line-590"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-591"></a><span class='hs-comment'>-- The 'Amode' type: Memory addressing modes passed up the tree.</span>
<a name="line-592"></a>
<a name="line-593"></a><a name="Amode"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Amode</span>
<a name="line-594"></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-595"></a>
<a name="line-596"></a><span class='hs-comment'>{-
<a name="line-597"></a>Now, given a tree (the argument to an CmmLoad) that references memory,
<a name="line-598"></a>produce a suitable addressing mode.
<a name="line-599"></a>
<a name="line-600"></a>A Rule of the Game (tm) for Amodes: use of the addr bit must
<a name="line-601"></a>immediately follow use of the code part, since the code part puts
<a name="line-602"></a>values in registers which the addr then refers to. So you can't put
<a name="line-603"></a>anything in between, lest it overwrite some of those registers. If
<a name="line-604"></a>you need to do some other computation between the code part and use of
<a name="line-605"></a>the addr bit, first store the effective address from the amode in a
<a name="line-606"></a>temporary, then do the other computation, and then use the temporary:
<a name="line-607"></a>
<a name="line-608"></a> code
<a name="line-609"></a> LEA amode, tmp
<a name="line-610"></a> ... other computation ...
<a name="line-611"></a> ... (tmp) ...
<a name="line-612"></a>-}</span>
<a name="line-613"></a>
<a name="line-614"></a><a name="getAmode"></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-615"></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-616"></a>
<a name="line-617"></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-conid'>W32</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-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-618"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>off</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>makeImmediate</span> <span class='hs-conid'>W32</span> <span class='hs-conid'>True</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-varid'>i</span><span class='hs-layout'>)</span>
<a name="line-619"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-620"></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'>x</span>
<a name="line-621"></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'>AddrRegImm</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>off</span><span class='hs-layout'>)</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-622"></a>
<a name="line-623"></a>
<a name="line-624"></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'>W32</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-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-625"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>off</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>makeImmediate</span> <span class='hs-conid'>W32</span> <span class='hs-conid'>True</span> <span class='hs-varid'>i</span>
<a name="line-626"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-627"></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'>x</span>
<a name="line-628"></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'>AddrRegImm</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>off</span><span class='hs-layout'>)</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-629"></a>
<a name="line-630"></a> <span class='hs-comment'>-- optimize addition with 32-bit immediate</span>
<a name="line-631"></a> <span class='hs-comment'>-- (needed for PIC)</span>
<a name="line-632"></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'>W32</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>
<a name="line-633"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-634"></a> <span class='hs-varid'>tmp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegNat</span> <span class='hs-conid'>II32</span>
<a name="line-635"></a> <span class='hs-layout'>(</span><span class='hs-varid'>src</span><span class='hs-layout'>,</span> <span class='hs-varid'>srcCode</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-636"></a> <span class='hs-keyword'>let</span> <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-637"></a> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>srcCode</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>ADDIS</span> <span class='hs-varid'>tmp</span> <span class='hs-varid'>src</span> <span class='hs-layout'>(</span><span class='hs-conid'>HA</span> <span class='hs-varid'>imm</span><span class='hs-layout'>)</span>
<a name="line-638"></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'>AddrRegImm</span> <span class='hs-varid'>tmp</span> <span class='hs-layout'>(</span><span class='hs-conid'>LO</span> <span class='hs-varid'>imm</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-639"></a>
<a name="line-640"></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>
<a name="line-641"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-642"></a> <span class='hs-varid'>tmp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegNat</span> <span class='hs-conid'>II32</span>
<a name="line-643"></a> <span class='hs-keyword'>let</span> <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-644"></a> <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'>LIS</span> <span class='hs-varid'>tmp</span> <span class='hs-layout'>(</span><span class='hs-conid'>HA</span> <span class='hs-varid'>imm</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-645"></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'>AddrRegImm</span> <span class='hs-varid'>tmp</span> <span class='hs-layout'>(</span><span class='hs-conid'>LO</span> <span class='hs-varid'>imm</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-646"></a>
<a name="line-647"></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'>W32</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-648"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-649"></a> <span class='hs-layout'>(</span><span class='hs-varid'>regX</span><span class='hs-layout'>,</span> <span class='hs-varid'>codeX</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-650"></a> <span class='hs-layout'>(</span><span class='hs-varid'>regY</span><span class='hs-layout'>,</span> <span class='hs-varid'>codeY</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-651"></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'>AddrRegReg</span> <span class='hs-varid'>regX</span> <span class='hs-varid'>regY</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>codeX</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>codeY</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-652"></a>
<a name="line-653"></a><span class='hs-definition'>getAmode</span> <span class='hs-varid'>other</span>
<a name="line-654"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-655"></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'>other</span>
<a name="line-656"></a> <span class='hs-keyword'>let</span>
<a name="line-657"></a> <span class='hs-varid'>off</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ImmInt</span> <span class='hs-num'>0</span>
<a name="line-658"></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'>AddrRegImm</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>off</span><span class='hs-layout'>)</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-659"></a>
<a name="line-660"></a>
<a name="line-661"></a>
<a name="line-662"></a><a name="CondCode"></a><span class='hs-comment'>-- The 'CondCode' type: Condition codes passed up the tree.</span>
<a name="line-663"></a><a name="CondCode"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>CondCode</span>
<a name="line-664"></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-665"></a>
<a name="line-666"></a><span class='hs-comment'>-- Set up a condition code for a conditional branch.</span>
<a name="line-667"></a>
<a name="line-668"></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-669"></a>
<a name="line-670"></a><span class='hs-comment'>-- almost the same as everywhere else - but we need to</span>
<a name="line-671"></a><span class='hs-comment'>-- extend small integers to 32 bit first</span>
<a name="line-672"></a>
<a name="line-673"></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-674"></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-675"></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-676"></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-677"></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-678"></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-679"></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-680"></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-681"></a>
<a name="line-682"></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-683"></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-684"></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-685"></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-686"></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-687"></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-688"></a>
<a name="line-689"></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-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-690"></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-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-691"></a>
<a name="line-692"></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-layout'>(</span><span class='hs-varid'>extendSExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendSExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-693"></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-layout'>(</span><span class='hs-varid'>extendSExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendSExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-694"></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-layout'>(</span><span class='hs-varid'>extendSExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendSExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-695"></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-layout'>(</span><span class='hs-varid'>extendSExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendSExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-696"></a>
<a name="line-697"></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-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-698"></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-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-699"></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-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-700"></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-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>extendUExpr</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-701"></a>
<a name="line-702"></a> <span class='hs-varid'>other</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>pprPanic</span> <span class='hs-str'>"getCondCode(powerpc)"</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-703"></a>
<a name="line-704"></a><span class='hs-definition'>getCondCode</span> <span class='hs-varid'>other</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>panic</span> <span class='hs-str'>"getCondCode(2)(powerpc)"</span>
<a name="line-705"></a>
<a name="line-706"></a>
<a name="line-707"></a>
<a name="line-708"></a><span class='hs-comment'>-- @cond(Int|Flt)Code@: Turn a boolean expression into a condition, to be</span>
<a name="line-709"></a><span class='hs-comment'>-- passed back up the tree.</span>
<a name="line-710"></a>
<a name="line-711"></a><a name="condIntCode"></a><span class='hs-definition'>condIntCode</span><span class='hs-layout'>,</span> <span class='hs-varid'>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-712"></a>
<a name="line-713"></a><span class='hs-comment'>-- ###FIXME: I16 and I8!</span>
<a name="line-714"></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-varid'>y</span> <span class='hs-varid'>rep</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-715"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>src2</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>makeImmediate</span> <span class='hs-varid'>rep</span> <span class='hs-layout'>(</span><span class='hs-varid'>not</span> <span class='hs-varop'>$</span> <span class='hs-varid'>condUnsigned</span> <span class='hs-varid'>cond</span><span class='hs-layout'>)</span> <span class='hs-varid'>y</span>
<a name="line-716"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-717"></a> <span class='hs-layout'>(</span><span class='hs-varid'>src1</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'>x</span>
<a name="line-718"></a> <span class='hs-keyword'>let</span>
<a name="line-719"></a> <span class='hs-varid'>code'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>code</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-720"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>if</span> <span class='hs-varid'>condUnsigned</span> <span class='hs-varid'>cond</span> <span class='hs-keyword'>then</span> <span class='hs-conid'>CMPL</span> <span class='hs-keyword'>else</span> <span class='hs-conid'>CMP</span><span class='hs-layout'>)</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>src1</span> <span class='hs-layout'>(</span><span class='hs-conid'>RIImm</span> <span class='hs-varid'>src2</span><span class='hs-layout'>)</span>
<a name="line-721"></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-722"></a>
<a name="line-723"></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-724"></a> <span class='hs-layout'>(</span><span class='hs-varid'>src1</span><span class='hs-layout'>,</span> <span class='hs-varid'>code1</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-725"></a> <span class='hs-layout'>(</span><span class='hs-varid'>src2</span><span class='hs-layout'>,</span> <span class='hs-varid'>code2</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-726"></a> <span class='hs-keyword'>let</span>
<a name="line-727"></a> <span class='hs-varid'>code'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>code1</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>code2</span> <span class='hs-varop'>`snocOL`</span>
<a name="line-728"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>if</span> <span class='hs-varid'>condUnsigned</span> <span class='hs-varid'>cond</span> <span class='hs-keyword'>then</span> <span class='hs-conid'>CMPL</span> <span class='hs-keyword'>else</span> <span class='hs-conid'>CMP</span><span class='hs-layout'>)</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>src1</span> <span class='hs-layout'>(</span><span class='hs-conid'>RIReg</span> <span class='hs-varid'>src2</span><span class='hs-layout'>)</span>
<a name="line-729"></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-730"></a>
<a name="line-731"></a><a name="condFltCode"></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-732"></a> <span class='hs-layout'>(</span><span class='hs-varid'>src1</span><span class='hs-layout'>,</span> <span class='hs-varid'>code1</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-733"></a> <span class='hs-layout'>(</span><span class='hs-varid'>src2</span><span class='hs-layout'>,</span> <span class='hs-varid'>code2</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-734"></a> <span class='hs-keyword'>let</span>
<a name="line-735"></a> <span class='hs-varid'>code'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>code1</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>code2</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>FCMP</span> <span class='hs-varid'>src1</span> <span class='hs-varid'>src2</span>
<a name="line-736"></a> <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> <span class='hs-comment'>-- twiddle CR to handle unordered case</span>
<a name="line-737"></a> <span class='hs-conid'>GE</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>code'</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>CRNOR</span> <span class='hs-varid'>ltbit</span> <span class='hs-varid'>eqbit</span> <span class='hs-varid'>gtbit</span>
<a name="line-738"></a> <span class='hs-conid'>LE</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>code'</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>CRNOR</span> <span class='hs-varid'>gtbit</span> <span class='hs-varid'>eqbit</span> <span class='hs-varid'>ltbit</span>
<a name="line-739"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>code'</span>
<a name="line-740"></a> <span class='hs-keyword'>where</span>
<a name="line-741"></a> <span class='hs-varid'>ltbit</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>0</span> <span class='hs-layout'>;</span> <span class='hs-varid'>eqbit</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>2</span> <span class='hs-layout'>;</span> <span class='hs-varid'>gtbit</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>1</span>
<a name="line-742"></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-varid'>cond</span> <span class='hs-varid'>code''</span><span class='hs-layout'>)</span>
<a name="line-743"></a>
<a name="line-744"></a>
<a name="line-745"></a>
<a name="line-746"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-747"></a><span class='hs-comment'>-- Generating assignments</span>
<a name="line-748"></a>
<a name="line-749"></a><span class='hs-comment'>-- Assignments are really at the heart of the whole code generation</span>
<a name="line-750"></a><span class='hs-comment'>-- business. Almost all top-level nodes of any real importance are</span>
<a name="line-751"></a><span class='hs-comment'>-- assignments, which correspond to loads, stores, or register</span>
<a name="line-752"></a><span class='hs-comment'>-- transfers. If we're really lucky, some of the register transfers</span>
<a name="line-753"></a><span class='hs-comment'>-- will go away, because we can use the destination register to</span>
<a name="line-754"></a><span class='hs-comment'>-- complete the code generation for the right hand side. This only</span>
<a name="line-755"></a><span class='hs-comment'>-- fails when the right hand side is forced into a fixed register</span>
<a name="line-756"></a><span class='hs-comment'>-- (e.g. the result of a call).</span>
<a name="line-757"></a>
<a name="line-758"></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-759"></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-760"></a>
<a name="line-761"></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-762"></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-763"></a>
<a name="line-764"></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-765"></a> <span class='hs-layout'>(</span><span class='hs-varid'>srcReg</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'>src</span>
<a name="line-766"></a> <span class='hs-conid'>Amode</span> <span class='hs-varid'>dstAddr</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-767"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>addr_code</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>ST</span> <span class='hs-varid'>pk</span> <span class='hs-varid'>srcReg</span> <span class='hs-varid'>dstAddr</span>
<a name="line-768"></a>
<a name="line-769"></a><span class='hs-comment'>-- dst is a reg, but src could be anything</span>
<a name="line-770"></a><span class='hs-definition'>assignReg_IntCode</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>src</span>
<a name="line-771"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-772"></a> <span class='hs-varid'>r</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getRegister</span> <span class='hs-varid'>src</span>
<a name="line-773"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>r</span> <span class='hs-keyword'>of</span>
<a name="line-774"></a> <span class='hs-conid'>Any</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>code</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>code</span> <span class='hs-varid'>dst</span>
<a name="line-775"></a> <span class='hs-conid'>Fixed</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>freg</span> <span class='hs-varid'>fcode</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fcode</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>MR</span> <span class='hs-varid'>dst</span> <span class='hs-varid'>freg</span>
<a name="line-776"></a> <span class='hs-keyword'>where</span>
<a name="line-777"></a> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getRegisterReg</span> <span class='hs-varid'>reg</span>
<a name="line-778"></a>
<a name="line-779"></a>
<a name="line-780"></a>
<a name="line-781"></a><span class='hs-comment'>-- Easy, isn't it?</span>
<a name="line-782"></a><span class='hs-definition'>assignMem_FltCode</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>assignMem_IntCode</span>
<a name="line-783"></a><span class='hs-definition'>assignReg_FltCode</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>assignReg_IntCode</span>
<a name="line-784"></a>
<a name="line-785"></a>
<a name="line-786"></a>
<a name="line-787"></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-788"></a>
<a name="line-789"></a><span class='hs-definition'>genJump</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>
<a name="line-790"></a> <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-varop'>$</span> <span class='hs-conid'>JMP</span> <span class='hs-varid'>lbl</span><span class='hs-layout'>)</span>
<a name="line-791"></a>
<a name="line-792"></a><span class='hs-definition'>genJump</span> <span class='hs-varid'>tree</span>
<a name="line-793"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-794"></a> <span class='hs-layout'>(</span><span class='hs-varid'>target</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'>tree</span>
<a name="line-795"></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'>MTCTR</span> <span class='hs-varid'>target</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>BCTR</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span>
<a name="line-796"></a>
<a name="line-797"></a>
<a name="line-798"></a><a name="genBranch"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-799"></a><span class='hs-comment'>-- Unconditional branches</span>
<a name="line-800"></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-801"></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-802"></a>
<a name="line-803"></a>
<a name="line-804"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-805"></a><span class='hs-comment'>-- Conditional jumps</span>
<a name="line-806"></a>
<a name="line-807"></a><span class='hs-comment'>{-
<a name="line-808"></a>Conditional jumps are always to local labels, so we can use branch
<a name="line-809"></a>instructions. We peek at the arguments to decide what kind of
<a name="line-810"></a>comparison to do.
<a name="line-811"></a>
<a name="line-812"></a>SPARC: First, we have to ensure that the condition codes are set
<a name="line-813"></a>according to the supplied comparison operation. We generate slightly
<a name="line-814"></a>different code for floating point comparisons, because a floating
<a name="line-815"></a>point operation cannot directly precede a @BF@. We assume the worst
<a name="line-816"></a>and fill that slot with a @NOP@.
<a name="line-817"></a>
<a name="line-818"></a>SPARC: Do not fill the delay slots here; you will confuse the register
<a name="line-819"></a>allocator.
<a name="line-820"></a>-}</span>
<a name="line-821"></a>
<a name="line-822"></a>
<a name="line-823"></a><a name="genCondJump"></a><span class='hs-definition'>genCondJump</span>
<a name="line-824"></a> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>BlockId</span> <span class='hs-comment'>-- the branch target</span>
<a name="line-825"></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-826"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>InstrBlock</span>
<a name="line-827"></a>
<a name="line-828"></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-829"></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-830"></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'>BCC</span> <span class='hs-varid'>cond</span> <span class='hs-varid'>id</span><span class='hs-layout'>)</span>
<a name="line-831"></a>
<a name="line-832"></a>
<a name="line-833"></a>
<a name="line-834"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-835"></a><span class='hs-comment'>-- Generating C calls</span>
<a name="line-836"></a>
<a name="line-837"></a><span class='hs-comment'>-- Now the biggest nightmare---calls. Most of the nastiness is buried in</span>
<a name="line-838"></a><span class='hs-comment'>-- @get_arg@, which moves the arguments to the correct registers/stack</span>
<a name="line-839"></a><span class='hs-comment'>-- locations. Apart from that, the code is easy.</span>
<a name="line-840"></a><span class='hs-comment'>-- </span>
<a name="line-841"></a><span class='hs-comment'>-- (If applicable) Do not fill the delay slots here; you will confuse the</span>
<a name="line-842"></a><span class='hs-comment'>-- register allocator.</span>
<a name="line-843"></a>
<a name="line-844"></a><a name="genCCall"></a><span class='hs-definition'>genCCall</span>
<a name="line-845"></a> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmCallTarget</span> <span class='hs-comment'>-- function to call</span>
<a name="line-846"></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-847"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>HintedCmmActuals</span> <span class='hs-comment'>-- arguments (of mixed type)</span>
<a name="line-848"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>InstrBlock</span>
<a name="line-849"></a>
<a name="line-850"></a>
<a name="line-851"></a><span class='hs-cpp'>#if darwin_TARGET_OS || linux_TARGET_OS</span>
<a name="line-852"></a><span class='hs-comment'>{-
<a name="line-853"></a> The PowerPC calling convention for Darwin/Mac OS X
<a name="line-854"></a> is described in Apple's document
<a name="line-855"></a> "Inside Mac OS X - Mach-O Runtime Architecture".
<a name="line-856"></a>
<a name="line-857"></a> PowerPC Linux uses the System V Release 4 Calling Convention
<a name="line-858"></a> for PowerPC. It is described in the
<a name="line-859"></a> "System V Application Binary Interface PowerPC Processor Supplement".
<a name="line-860"></a>
<a name="line-861"></a> Both conventions are similar:
<a name="line-862"></a> Parameters may be passed in general-purpose registers starting at r3, in
<a name="line-863"></a> floating point registers starting at f1, or on the stack.
<a name="line-864"></a>
<a name="line-865"></a> But there are substantial differences:
<a name="line-866"></a> * The number of registers used for parameter passing and the exact set of
<a name="line-867"></a> nonvolatile registers differs (see MachRegs.lhs).
<a name="line-868"></a> * On Darwin, stack space is always reserved for parameters, even if they are
<a name="line-869"></a> passed in registers. The called routine may choose to save parameters from
<a name="line-870"></a> registers to the corresponding space on the stack.
<a name="line-871"></a> * On Darwin, a corresponding amount of GPRs is skipped when a floating point
<a name="line-872"></a> parameter is passed in an FPR.
<a name="line-873"></a> * SysV insists on either passing I64 arguments on the stack, or in two GPRs,
<a name="line-874"></a> starting with an odd-numbered GPR. It may skip a GPR to achieve this.
<a name="line-875"></a> Darwin just treats an I64 like two separate II32s (high word first).
<a name="line-876"></a> * I64 and FF64 arguments are 8-byte aligned on the stack for SysV, but only
<a name="line-877"></a> 4-byte aligned like everything else on Darwin.
<a name="line-878"></a> * The SysV spec claims that FF32 is represented as FF64 on the stack. GCC on
<a name="line-879"></a> PowerPC Linux does not agree, so neither do we.
<a name="line-880"></a>
<a name="line-881"></a> According to both conventions, The parameter area should be part of the
<a name="line-882"></a> caller's stack frame, allocated in the caller's prologue code (large enough
<a name="line-883"></a> to hold the parameter lists for all called routines). The NCG already
<a name="line-884"></a> uses the stack for register spilling, leaving 64 bytes free at the top.
<a name="line-885"></a> If we need a larger parameter area than that, we just allocate a new stack
<a name="line-886"></a> frame just before ccalling.
<a name="line-887"></a>-}</span>
<a name="line-888"></a>
<a name="line-889"></a>
<a name="line-890"></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>
<a name="line-891"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>unitOL</span> <span class='hs-conid'>LWSYNC</span>
<a name="line-892"></a>
<a name="line-893"></a><span class='hs-definition'>genCCall</span> <span class='hs-varid'>target</span> <span class='hs-varid'>dest_regs</span> <span class='hs-varid'>argsAndHints</span>
<a name="line-894"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ASSERT</span> <span class='hs-layout'>(</span><span class='hs-varid'>not</span> <span class='hs-varop'>$</span> <span class='hs-varid'>any</span> <span class='hs-layout'>(</span><span class='hs-varop'>`elem`</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>II8</span><span class='hs-layout'>,</span><span class='hs-conid'>II16</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>cmmTypeSize</span> <span class='hs-varid'>argReps</span><span class='hs-layout'>)</span>
<a name="line-895"></a> <span class='hs-comment'>-- we rely on argument promotion in the codeGen</span>
<a name="line-896"></a> <span class='hs-keyword'>do</span>
<a name="line-897"></a> <span class='hs-layout'>(</span><span class='hs-varid'>finalStack</span><span class='hs-layout'>,</span><span class='hs-varid'>passArgumentsCode</span><span class='hs-layout'>,</span><span class='hs-varid'>usedRegs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>passArguments</span>
<a name="line-898"></a> <span class='hs-layout'>(</span><span class='hs-varid'>zip</span> <span class='hs-varid'>args</span> <span class='hs-varid'>argReps</span><span class='hs-layout'>)</span>
<a name="line-899"></a> <span class='hs-varid'>allArgRegs</span> <span class='hs-varid'>allFPArgRegs</span>
<a name="line-900"></a> <span class='hs-varid'>initialStackOffset</span>
<a name="line-901"></a> <span class='hs-layout'>(</span><span class='hs-varid'>toOL</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <span class='hs-conid'>[]</span>
<a name="line-902"></a>
<a name="line-903"></a> <span class='hs-layout'>(</span><span class='hs-varid'>labelOrExpr</span><span class='hs-layout'>,</span> <span class='hs-varid'>reduceToFF32</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>target</span> <span class='hs-keyword'>of</span>
<a name="line-904"></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> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Left</span> <span class='hs-varid'>lbl</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span>
<a name="line-905"></a> <span class='hs-conid'>CmmCallee</span> <span class='hs-varid'>expr</span> <span class='hs-varid'>conv</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Right</span> <span class='hs-varid'>expr</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span>
<a name="line-906"></a> <span class='hs-conid'>CmmPrim</span> <span class='hs-varid'>mop</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>outOfLineFloatOp</span> <span class='hs-varid'>mop</span>
<a name="line-907"></a>
<a name="line-908"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>codeBefore</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>move_sp_down</span> <span class='hs-varid'>finalStack</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>passArgumentsCode</span>
<a name="line-909"></a> <span class='hs-varid'>codeAfter</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>move_sp_up</span> <span class='hs-varid'>finalStack</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>moveResult</span> <span class='hs-varid'>reduceToFF32</span>
<a name="line-910"></a>
<a name="line-911"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>labelOrExpr</span> <span class='hs-keyword'>of</span>
<a name="line-912"></a> <span class='hs-conid'>Left</span> <span class='hs-varid'>lbl</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-913"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span> <span class='hs-varid'>codeBefore</span>
<a name="line-914"></a> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>BL</span> <span class='hs-varid'>lbl</span> <span class='hs-varid'>usedRegs</span>
<a name="line-915"></a> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>codeAfter</span><span class='hs-layout'>)</span>
<a name="line-916"></a> <span class='hs-conid'>Right</span> <span class='hs-varid'>dyn</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-917"></a> <span class='hs-layout'>(</span><span class='hs-varid'>dynReg</span><span class='hs-layout'>,</span> <span class='hs-varid'>dynCode</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSomeReg</span> <span class='hs-varid'>dyn</span>
<a name="line-918"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span> <span class='hs-varid'>dynCode</span>
<a name="line-919"></a> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>MTCTR</span> <span class='hs-varid'>dynReg</span>
<a name="line-920"></a> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>codeBefore</span>
<a name="line-921"></a> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>BCTRL</span> <span class='hs-varid'>usedRegs</span>
<a name="line-922"></a> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>codeAfter</span><span class='hs-layout'>)</span>
<a name="line-923"></a> <span class='hs-keyword'>where</span>
<a name="line-924"></a><span class='hs-cpp'>#if darwin_TARGET_OS</span>
<a name="line-925"></a> <span class='hs-varid'>initialStackOffset</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>24</span>
<a name="line-926"></a> <span class='hs-comment'>-- size of linkage area + size of arguments, in bytes </span>
<a name="line-927"></a> <span class='hs-varid'>stackDelta</span> <span class='hs-sel'>_finalStack</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>roundTo</span> <span class='hs-num'>16</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-num'>24</span> <span class='hs-varop'>+</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>max</span> <span class='hs-num'>32</span> <span class='hs-varop'>$</span> <span class='hs-varid'>sum</span> <span class='hs-varop'>$</span>
<a name="line-928"></a> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>widthInBytes</span> <span class='hs-varop'>.</span> <span class='hs-varid'>typeWidth</span><span class='hs-layout'>)</span> <span class='hs-varid'>argReps</span>
<a name="line-929"></a><span class='hs-cpp'>#elif linux_TARGET_OS</span>
<a name="line-930"></a> <span class='hs-varid'>initialStackOffset</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>8</span>
<a name="line-931"></a> <span class='hs-varid'>stackDelta</span> <span class='hs-varid'>finalStack</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>roundTo</span> <span class='hs-num'>16</span> <span class='hs-varid'>finalStack</span>
<a name="line-932"></a><span class='hs-cpp'>#endif</span>
<a name="line-933"></a> <span class='hs-varid'>args</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>hintlessCmm</span> <span class='hs-varid'>argsAndHints</span>
<a name="line-934"></a> <span class='hs-varid'>argReps</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>cmmExprType</span> <span class='hs-varid'>args</span>
<a name="line-935"></a>
<a name="line-936"></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-937"></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-938"></a>
<a name="line-939"></a> <span class='hs-varid'>move_sp_down</span> <span class='hs-varid'>finalStack</span>
<a name="line-940"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>delta</span> <span class='hs-varop'>></span> <span class='hs-num'>64</span> <span class='hs-keyglyph'>=</span>
<a name="line-941"></a> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>STU</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>sp</span> <span class='hs-layout'>(</span><span class='hs-conid'>AddrRegImm</span> <span class='hs-varid'>sp</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-varid'>delta</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-942"></a> <span class='hs-conid'>DELTA</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-varid'>delta</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-943"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>nilOL</span>
<a name="line-944"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>delta</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>stackDelta</span> <span class='hs-varid'>finalStack</span>
<a name="line-945"></a> <span class='hs-varid'>move_sp_up</span> <span class='hs-varid'>finalStack</span>
<a name="line-946"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>delta</span> <span class='hs-varop'>></span> <span class='hs-num'>64</span> <span class='hs-keyglyph'>=</span>
<a name="line-947"></a> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>ADD</span> <span class='hs-varid'>sp</span> <span class='hs-varid'>sp</span> <span class='hs-layout'>(</span><span class='hs-conid'>RIImm</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-varid'>delta</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-948"></a> <span class='hs-conid'>DELTA</span> <span class='hs-num'>0</span><span class='hs-keyglyph'>]</span>
<a name="line-949"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>nilOL</span>
<a name="line-950"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>delta</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>stackDelta</span> <span class='hs-varid'>finalStack</span>
<a name="line-951"></a>
<a name="line-952"></a>
<a name="line-953"></a> <span class='hs-varid'>passArguments</span> <span class='hs-conid'>[]</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>stackOffset</span> <span class='hs-varid'>accumCode</span> <span class='hs-varid'>accumUsed</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>stackOffset</span><span class='hs-layout'>,</span> <span class='hs-varid'>accumCode</span><span class='hs-layout'>,</span> <span class='hs-varid'>accumUsed</span><span class='hs-layout'>)</span>
<a name="line-954"></a> <span class='hs-varid'>passArguments</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>arg</span><span class='hs-layout'>,</span><span class='hs-varid'>arg_ty</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'>gprs</span> <span class='hs-varid'>fprs</span> <span class='hs-varid'>stackOffset</span>
<a name="line-955"></a> <span class='hs-varid'>accumCode</span> <span class='hs-varid'>accumUsed</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isWord64</span> <span class='hs-varid'>arg_ty</span> <span class='hs-keyglyph'>=</span>
<a name="line-956"></a> <span class='hs-keyword'>do</span>
<a name="line-957"></a> <span class='hs-conid'>ChildCode64</span> <span class='hs-varid'>code</span> <span class='hs-varid'>vr_lo</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>iselExpr64</span> <span class='hs-varid'>arg</span>
<a name="line-958"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>vr_hi</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getHiVRegFromLo</span> <span class='hs-varid'>vr_lo</span>
<a name="line-959"></a>
<a name="line-960"></a><span class='hs-cpp'>#if darwin_TARGET_OS </span>
<a name="line-961"></a> <span class='hs-varid'>passArguments</span> <span class='hs-varid'>args</span>
<a name="line-962"></a> <span class='hs-layout'>(</span><span class='hs-varid'>drop</span> <span class='hs-num'>2</span> <span class='hs-varid'>gprs</span><span class='hs-layout'>)</span>
<a name="line-963"></a> <span class='hs-varid'>fprs</span>
<a name="line-964"></a> <span class='hs-layout'>(</span><span class='hs-varid'>stackOffset</span><span class='hs-varop'>+</span><span class='hs-num'>8</span><span class='hs-layout'>)</span>
<a name="line-965"></a> <span class='hs-layout'>(</span><span class='hs-varid'>accumCode</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>code</span>
<a name="line-966"></a> <span class='hs-varop'>`snocOL`</span> <span class='hs-varid'>storeWord</span> <span class='hs-varid'>vr_hi</span> <span class='hs-varid'>gprs</span> <span class='hs-varid'>stackOffset</span>
<a name="line-967"></a> <span class='hs-varop'>`snocOL`</span> <span class='hs-varid'>storeWord</span> <span class='hs-varid'>vr_lo</span> <span class='hs-layout'>(</span><span class='hs-varid'>drop</span> <span class='hs-num'>1</span> <span class='hs-varid'>gprs</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>stackOffset</span><span class='hs-varop'>+</span><span class='hs-num'>4</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-968"></a> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>take</span> <span class='hs-num'>2</span> <span class='hs-varid'>gprs</span><span class='hs-layout'>)</span> <span class='hs-varop'>++</span> <span class='hs-varid'>accumUsed</span><span class='hs-layout'>)</span>
<a name="line-969"></a> <span class='hs-keyword'>where</span>
<a name="line-970"></a> <span class='hs-varid'>storeWord</span> <span class='hs-varid'>vr</span> <span class='hs-layout'>(</span><span class='hs-varid'>gpr</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-varid'>offset</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>MR</span> <span class='hs-varid'>gpr</span> <span class='hs-varid'>vr</span>
<a name="line-971"></a> <span class='hs-varid'>storeWord</span> <span class='hs-varid'>vr</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>offset</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ST</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>vr</span> <span class='hs-layout'>(</span><span class='hs-conid'>AddrRegImm</span> <span class='hs-varid'>sp</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-varid'>offset</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-972"></a>
<a name="line-973"></a><span class='hs-cpp'>#elif linux_TARGET_OS</span>
<a name="line-974"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>stackOffset'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>roundTo</span> <span class='hs-num'>8</span> <span class='hs-varid'>stackOffset</span>
<a name="line-975"></a> <span class='hs-varid'>stackCode</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>accumCode</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>code</span>
<a name="line-976"></a> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>ST</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>vr_hi</span> <span class='hs-layout'>(</span><span class='hs-conid'>AddrRegImm</span> <span class='hs-varid'>sp</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-varid'>stackOffset'</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-977"></a> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>ST</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>vr_lo</span> <span class='hs-layout'>(</span><span class='hs-conid'>AddrRegImm</span> <span class='hs-varid'>sp</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-layout'>(</span><span class='hs-varid'>stackOffset'</span><span class='hs-varop'>+</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-978"></a> <span class='hs-varid'>regCode</span> <span class='hs-varid'>hireg</span> <span class='hs-varid'>loreg</span> <span class='hs-keyglyph'>=</span>
<a name="line-979"></a> <span class='hs-varid'>accumCode</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>code</span>
<a name="line-980"></a> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>MR</span> <span class='hs-varid'>hireg</span> <span class='hs-varid'>vr_hi</span>
<a name="line-981"></a> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>MR</span> <span class='hs-varid'>loreg</span> <span class='hs-varid'>vr_lo</span>
<a name="line-982"></a>
<a name="line-983"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>gprs</span> <span class='hs-keyword'>of</span>
<a name="line-984"></a> <span class='hs-varid'>hireg</span> <span class='hs-conop'>:</span> <span class='hs-varid'>loreg</span> <span class='hs-conop'>:</span> <span class='hs-varid'>regs</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>even</span> <span class='hs-layout'>(</span><span class='hs-varid'>length</span> <span class='hs-varid'>gprs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span>
<a name="line-985"></a> <span class='hs-varid'>passArguments</span> <span class='hs-varid'>args</span> <span class='hs-varid'>regs</span> <span class='hs-varid'>fprs</span> <span class='hs-varid'>stackOffset</span>
<a name="line-986"></a> <span class='hs-layout'>(</span><span class='hs-varid'>regCode</span> <span class='hs-varid'>hireg</span> <span class='hs-varid'>loreg</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>hireg</span> <span class='hs-conop'>:</span> <span class='hs-varid'>loreg</span> <span class='hs-conop'>:</span> <span class='hs-varid'>accumUsed</span><span class='hs-layout'>)</span>
<a name="line-987"></a> <span class='hs-sel'>_skipped</span> <span class='hs-conop'>:</span> <span class='hs-varid'>hireg</span> <span class='hs-conop'>:</span> <span class='hs-varid'>loreg</span> <span class='hs-conop'>:</span> <span class='hs-varid'>regs</span> <span class='hs-keyglyph'>-></span>
<a name="line-988"></a> <span class='hs-varid'>passArguments</span> <span class='hs-varid'>args</span> <span class='hs-varid'>regs</span> <span class='hs-varid'>fprs</span> <span class='hs-varid'>stackOffset</span>
<a name="line-989"></a> <span class='hs-layout'>(</span><span class='hs-varid'>regCode</span> <span class='hs-varid'>hireg</span> <span class='hs-varid'>loreg</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>hireg</span> <span class='hs-conop'>:</span> <span class='hs-varid'>loreg</span> <span class='hs-conop'>:</span> <span class='hs-varid'>accumUsed</span><span class='hs-layout'>)</span>
<a name="line-990"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-comment'>-- only one or no regs left</span>
<a name="line-991"></a> <span class='hs-varid'>passArguments</span> <span class='hs-varid'>args</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>fprs</span> <span class='hs-layout'>(</span><span class='hs-varid'>stackOffset'</span><span class='hs-varop'>+</span><span class='hs-num'>8</span><span class='hs-layout'>)</span>
<a name="line-992"></a> <span class='hs-varid'>stackCode</span> <span class='hs-varid'>accumUsed</span>
<a name="line-993"></a><span class='hs-cpp'>#endif</span>
<a name="line-994"></a>
<a name="line-995"></a> <span class='hs-varid'>passArguments</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>arg</span><span class='hs-layout'>,</span><span class='hs-varid'>rep</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'>gprs</span> <span class='hs-varid'>fprs</span> <span class='hs-varid'>stackOffset</span> <span class='hs-varid'>accumCode</span> <span class='hs-varid'>accumUsed</span>
<a name="line-996"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>reg</span> <span class='hs-conop'>:</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>regs</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-997"></a> <span class='hs-varid'>register</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getRegister</span> <span class='hs-varid'>arg</span>
<a name="line-998"></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'>register</span> <span class='hs-keyword'>of</span>
<a name="line-999"></a> <span class='hs-conid'>Fixed</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>freg</span> <span class='hs-varid'>fcode</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fcode</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>MR</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>freg</span>
<a name="line-1000"></a> <span class='hs-conid'>Any</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>acode</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>acode</span> <span class='hs-varid'>reg</span>
<a name="line-1001"></a> <span class='hs-varid'>passArguments</span> <span class='hs-varid'>args</span>
<a name="line-1002"></a> <span class='hs-layout'>(</span><span class='hs-varid'>drop</span> <span class='hs-varid'>nGprs</span> <span class='hs-varid'>gprs</span><span class='hs-layout'>)</span>
<a name="line-1003"></a> <span class='hs-layout'>(</span><span class='hs-varid'>drop</span> <span class='hs-varid'>nFprs</span> <span class='hs-varid'>fprs</span><span class='hs-layout'>)</span>
<a name="line-1004"></a><span class='hs-cpp'>#if darwin_TARGET_OS</span>
<a name="line-1005"></a> <span class='hs-comment'>-- The Darwin ABI requires that we reserve stack slots for register parameters</span>
<a name="line-1006"></a> <span class='hs-layout'>(</span><span class='hs-varid'>stackOffset</span> <span class='hs-varop'>+</span> <span class='hs-varid'>stackBytes</span><span class='hs-layout'>)</span>
<a name="line-1007"></a><span class='hs-cpp'>#elif linux_TARGET_OS</span>
<a name="line-1008"></a> <span class='hs-comment'>-- ... the SysV ABI doesn't.</span>
<a name="line-1009"></a> <span class='hs-varid'>stackOffset</span>
<a name="line-1010"></a><span class='hs-cpp'>#endif</span>
<a name="line-1011"></a> <span class='hs-layout'>(</span><span class='hs-varid'>accumCode</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-1012"></a> <span class='hs-layout'>(</span><span class='hs-varid'>reg</span> <span class='hs-conop'>:</span> <span class='hs-varid'>accumUsed</span><span class='hs-layout'>)</span>
<a name="line-1013"></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-1014"></a> <span class='hs-layout'>(</span><span class='hs-varid'>vr</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'>arg</span>
<a name="line-1015"></a> <span class='hs-varid'>passArguments</span> <span class='hs-varid'>args</span>
<a name="line-1016"></a> <span class='hs-layout'>(</span><span class='hs-varid'>drop</span> <span class='hs-varid'>nGprs</span> <span class='hs-varid'>gprs</span><span class='hs-layout'>)</span>
<a name="line-1017"></a> <span class='hs-layout'>(</span><span class='hs-varid'>drop</span> <span class='hs-varid'>nFprs</span> <span class='hs-varid'>fprs</span><span class='hs-layout'>)</span>
<a name="line-1018"></a> <span class='hs-layout'>(</span><span class='hs-varid'>stackOffset'</span> <span class='hs-varop'>+</span> <span class='hs-varid'>stackBytes</span><span class='hs-layout'>)</span>
<a name="line-1019"></a> <span class='hs-layout'>(</span><span class='hs-varid'>accumCode</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>code</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-conid'>ST</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-varid'>vr</span> <span class='hs-varid'>stackSlot</span><span class='hs-layout'>)</span>
<a name="line-1020"></a> <span class='hs-varid'>accumUsed</span>
<a name="line-1021"></a> <span class='hs-keyword'>where</span>
<a name="line-1022"></a><span class='hs-cpp'>#if darwin_TARGET_OS</span>
<a name="line-1023"></a> <span class='hs-comment'>-- stackOffset is at least 4-byte aligned</span>
<a name="line-1024"></a> <span class='hs-comment'>-- The Darwin ABI is happy with that.</span>
<a name="line-1025"></a> <span class='hs-varid'>stackOffset'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>stackOffset</span>
<a name="line-1026"></a><span class='hs-cpp'>#else</span>
<a name="line-1027"></a> <span class='hs-comment'>-- ... the SysV ABI requires 8-byte alignment for doubles.</span>
<a name="line-1028"></a> <span class='hs-varid'>stackOffset'</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isFloatType</span> <span class='hs-varid'>rep</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>typeWidth</span> <span class='hs-varid'>rep</span> <span class='hs-varop'>==</span> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>=</span>
<a name="line-1029"></a> <span class='hs-varid'>roundTo</span> <span class='hs-num'>8</span> <span class='hs-varid'>stackOffset</span>
<a name="line-1030"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>stackOffset</span>
<a name="line-1031"></a><span class='hs-cpp'>#endif</span>
<a name="line-1032"></a> <span class='hs-varid'>stackSlot</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>AddrRegImm</span> <span class='hs-varid'>sp</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-varid'>stackOffset'</span><span class='hs-layout'>)</span>
<a name="line-1033"></a> <span class='hs-layout'>(</span><span class='hs-varid'>nGprs</span><span class='hs-layout'>,</span> <span class='hs-varid'>nFprs</span><span class='hs-layout'>,</span> <span class='hs-varid'>stackBytes</span><span class='hs-layout'>,</span> <span class='hs-varid'>regs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>cmmTypeSize</span> <span class='hs-varid'>rep</span> <span class='hs-keyword'>of</span>
<a name="line-1034"></a> <span class='hs-conid'>II32</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-layout'>,</span> <span class='hs-num'>0</span><span class='hs-layout'>,</span> <span class='hs-num'>4</span><span class='hs-layout'>,</span> <span class='hs-varid'>gprs</span><span class='hs-layout'>)</span>
<a name="line-1035"></a><span class='hs-cpp'>#if darwin_TARGET_OS</span>
<a name="line-1036"></a> <span class='hs-comment'>-- The Darwin ABI requires that we skip a corresponding number of GPRs when</span>
<a name="line-1037"></a> <span class='hs-comment'>-- we use the FPRs.</span>
<a name="line-1038"></a> <span class='hs-conid'>FF32</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-layout'>,</span> <span class='hs-num'>1</span><span class='hs-layout'>,</span> <span class='hs-num'>4</span><span class='hs-layout'>,</span> <span class='hs-varid'>fprs</span><span class='hs-layout'>)</span>
<a name="line-1039"></a> <span class='hs-conid'>FF64</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-num'>2</span><span class='hs-layout'>,</span> <span class='hs-num'>1</span><span class='hs-layout'>,</span> <span class='hs-num'>8</span><span class='hs-layout'>,</span> <span class='hs-varid'>fprs</span><span class='hs-layout'>)</span>
<a name="line-1040"></a><span class='hs-cpp'>#elif linux_TARGET_OS</span>
<a name="line-1041"></a> <span class='hs-comment'>-- ... the SysV ABI doesn't.</span>
<a name="line-1042"></a> <span class='hs-conid'>FF32</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-layout'>,</span> <span class='hs-num'>1</span><span class='hs-layout'>,</span> <span class='hs-num'>4</span><span class='hs-layout'>,</span> <span class='hs-varid'>fprs</span><span class='hs-layout'>)</span>
<a name="line-1043"></a> <span class='hs-conid'>FF64</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-layout'>,</span> <span class='hs-num'>1</span><span class='hs-layout'>,</span> <span class='hs-num'>8</span><span class='hs-layout'>,</span> <span class='hs-varid'>fprs</span><span class='hs-layout'>)</span>
<a name="line-1044"></a><span class='hs-cpp'>#endif</span>
<a name="line-1045"></a>
<a name="line-1046"></a> <span class='hs-varid'>moveResult</span> <span class='hs-varid'>reduceToFF32</span> <span class='hs-keyglyph'>=</span>
<a name="line-1047"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>dest_regs</span> <span class='hs-keyword'>of</span>
<a name="line-1048"></a> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>nilOL</span>
<a name="line-1049"></a> <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-1050"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>reduceToFF32</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>isFloat32</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'>FRSP</span> <span class='hs-varid'>r_dest</span> <span class='hs-varid'>f1</span><span class='hs-layout'>)</span>
<a name="line-1051"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isFloat32</span> <span class='hs-varid'>rep</span> <span class='hs-varop'>||</span> <span class='hs-varid'>isFloat64</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'>MR</span> <span class='hs-varid'>r_dest</span> <span class='hs-varid'>f1</span><span class='hs-layout'>)</span>
<a name="line-1052"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isWord64</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>MR</span> <span class='hs-layout'>(</span><span class='hs-varid'>getHiVRegFromLo</span> <span class='hs-varid'>r_dest</span><span class='hs-layout'>)</span> <span class='hs-varid'>r3</span><span class='hs-layout'>,</span>
<a name="line-1053"></a> <span class='hs-conid'>MR</span> <span class='hs-varid'>r_dest</span> <span class='hs-varid'>r4</span><span class='hs-keyglyph'>]</span>
<a name="line-1054"></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'>MR</span> <span class='hs-varid'>r_dest</span> <span class='hs-varid'>r3</span><span class='hs-layout'>)</span>
<a name="line-1055"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>rep</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cmmRegType</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-1056"></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-1057"></a>
<a name="line-1058"></a> <span class='hs-varid'>outOfLineFloatOp</span> <span class='hs-varid'>mop</span> <span class='hs-keyglyph'>=</span>
<a name="line-1059"></a> <span class='hs-keyword'>do</span>
<a name="line-1060"></a> <span class='hs-varid'>dflags</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getDynFlagsNat</span>
<a name="line-1061"></a> <span class='hs-varid'>mopExpr</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-varop'>$</span>
<a name="line-1062"></a> <span class='hs-varid'>mkForeignLabel</span> <span class='hs-varid'>functionName</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>True</span> <span class='hs-conid'>IsFunction</span>
<a name="line-1063"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>mopLabelOrExpr</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>mopExpr</span> <span class='hs-keyword'>of</span>
<a name="line-1064"></a> <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-keyglyph'>-></span> <span class='hs-conid'>Left</span> <span class='hs-varid'>lbl</span>
<a name="line-1065"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Right</span> <span class='hs-varid'>mopExpr</span>
<a name="line-1066"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>mopLabelOrExpr</span><span class='hs-layout'>,</span> <span class='hs-varid'>reduce</span><span class='hs-layout'>)</span>
<a name="line-1067"></a> <span class='hs-keyword'>where</span>
<a name="line-1068"></a> <span class='hs-layout'>(</span><span class='hs-varid'>functionName</span><span class='hs-layout'>,</span> <span class='hs-varid'>reduce</span><span class='hs-layout'>)</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-1069"></a> <span class='hs-conid'>MO_F32_Exp</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"exp"</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span>
<a name="line-1070"></a> <span class='hs-conid'>MO_F32_Log</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"log"</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span>
<a name="line-1071"></a> <span class='hs-conid'>MO_F32_Sqrt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"sqrt"</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span>
<a name="line-1072"></a>
<a name="line-1073"></a> <span class='hs-conid'>MO_F32_Sin</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"sin"</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span>
<a name="line-1074"></a> <span class='hs-conid'>MO_F32_Cos</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"cos"</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span>
<a name="line-1075"></a> <span class='hs-conid'>MO_F32_Tan</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"tan"</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span>
<a name="line-1076"></a>
<a name="line-1077"></a> <span class='hs-conid'>MO_F32_Asin</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"asin"</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span>
<a name="line-1078"></a> <span class='hs-conid'>MO_F32_Acos</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"acos"</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span>
<a name="line-1079"></a> <span class='hs-conid'>MO_F32_Atan</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"atan"</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span>
<a name="line-1080"></a>
<a name="line-1081"></a> <span class='hs-conid'>MO_F32_Sinh</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"sinh"</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span>
<a name="line-1082"></a> <span class='hs-conid'>MO_F32_Cosh</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"cosh"</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span>
<a name="line-1083"></a> <span class='hs-conid'>MO_F32_Tanh</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"tanh"</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span>
<a name="line-1084"></a> <span class='hs-conid'>MO_F32_Pwr</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"pow"</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span>
<a name="line-1085"></a>
<a name="line-1086"></a> <span class='hs-conid'>MO_F64_Exp</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"exp"</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span>
<a name="line-1087"></a> <span class='hs-conid'>MO_F64_Log</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"log"</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span>
<a name="line-1088"></a> <span class='hs-conid'>MO_F64_Sqrt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"sqrt"</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span>
<a name="line-1089"></a>
<a name="line-1090"></a> <span class='hs-conid'>MO_F64_Sin</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"sin"</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span>
<a name="line-1091"></a> <span class='hs-conid'>MO_F64_Cos</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"cos"</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span>
<a name="line-1092"></a> <span class='hs-conid'>MO_F64_Tan</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"tan"</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span>
<a name="line-1093"></a>
<a name="line-1094"></a> <span class='hs-conid'>MO_F64_Asin</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"asin"</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span>
<a name="line-1095"></a> <span class='hs-conid'>MO_F64_Acos</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"acos"</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span>
<a name="line-1096"></a> <span class='hs-conid'>MO_F64_Atan</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"atan"</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span>
<a name="line-1097"></a>
<a name="line-1098"></a> <span class='hs-conid'>MO_F64_Sinh</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"sinh"</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span>
<a name="line-1099"></a> <span class='hs-conid'>MO_F64_Cosh</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"cosh"</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span>
<a name="line-1100"></a> <span class='hs-conid'>MO_F64_Tanh</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"tanh"</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span>
<a name="line-1101"></a> <span class='hs-conid'>MO_F64_Pwr</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>fsLit</span> <span class='hs-str'>"pow"</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span>
<a name="line-1102"></a> <span class='hs-varid'>other</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>pprPanic</span> <span class='hs-str'>"genCCall(ppc): unknown callish op"</span>
<a name="line-1103"></a> <span class='hs-layout'>(</span><span class='hs-varid'>pprCallishMachOp</span> <span class='hs-varid'>other</span><span class='hs-layout'>)</span>
<a name="line-1104"></a>
<a name="line-1105"></a><span class='hs-cpp'>#else /* darwin_TARGET_OS || linux_TARGET_OS */</span>
<a name="line-1106"></a><span class='hs-definition'>genCCall</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>panic</span> <span class='hs-str'>"PPC.CodeGen.genCCall: not defined for this os"</span>
<a name="line-1107"></a><span class='hs-cpp'>#endif </span>
<a name="line-1108"></a>
<a name="line-1109"></a>
<a name="line-1110"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-1111"></a><span class='hs-comment'>-- Generating a table-branch</span>
<a name="line-1112"></a>
<a name="line-1113"></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-1114"></a><span class='hs-definition'>genSwitch</span> <span class='hs-varid'>expr</span> <span class='hs-varid'>ids</span>
<a name="line-1115"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>opt_PIC</span>
<a name="line-1116"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1117"></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-1118"></a> <span class='hs-varid'>tmp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegNat</span> <span class='hs-conid'>II32</span>
<a name="line-1119"></a> <span class='hs-varid'>lbl</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewLabelNat</span>
<a name="line-1120"></a> <span class='hs-varid'>dflags</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getDynFlagsNat</span>
<a name="line-1121"></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-1122"></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-1123"></a> <span class='hs-keyword'>let</span>
<a name="line-1124"></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-1125"></a>
<a name="line-1126"></a> <span class='hs-varid'>jumpTableEntryRel</span> <span class='hs-conid'>Nothing</span>
<a name="line-1127"></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-1128"></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-1129"></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-1130"></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-1131"></a>
<a name="line-1132"></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-1133"></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-1134"></a> <span class='hs-conid'>SLW</span> <span class='hs-varid'>tmp</span> <span class='hs-varid'>reg</span> <span class='hs-layout'>(</span><span class='hs-conid'>RIImm</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-num'>2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1135"></a> <span class='hs-conid'>LD</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>tmp</span> <span class='hs-layout'>(</span><span class='hs-conid'>AddrRegReg</span> <span class='hs-varid'>tableReg</span> <span class='hs-varid'>tmp</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1136"></a> <span class='hs-conid'>ADD</span> <span class='hs-varid'>tmp</span> <span class='hs-varid'>tmp</span> <span class='hs-layout'>(</span><span class='hs-conid'>RIReg</span> <span class='hs-varid'>tableReg</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1137"></a> <span class='hs-conid'>MTCTR</span> <span class='hs-varid'>tmp</span><span class='hs-layout'>,</span>
<a name="line-1138"></a> <span class='hs-conid'>BCTR</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-1139"></a> <span class='hs-keyglyph'>]</span>
<a name="line-1140"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>code</span>
<a name="line-1141"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>
<a name="line-1142"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1143"></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-1144"></a> <span class='hs-varid'>tmp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegNat</span> <span class='hs-conid'>II32</span>
<a name="line-1145"></a> <span class='hs-varid'>lbl</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewLabelNat</span>
<a name="line-1146"></a> <span class='hs-keyword'>let</span>
<a name="line-1147"></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-1148"></a>
<a name="line-1149"></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-1150"></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-1151"></a> <span class='hs-conid'>SLW</span> <span class='hs-varid'>tmp</span> <span class='hs-varid'>reg</span> <span class='hs-layout'>(</span><span class='hs-conid'>RIImm</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-num'>2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1152"></a> <span class='hs-conid'>ADDIS</span> <span class='hs-varid'>tmp</span> <span class='hs-varid'>tmp</span> <span class='hs-layout'>(</span><span class='hs-conid'>HA</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>
<a name="line-1153"></a> <span class='hs-conid'>LD</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>tmp</span> <span class='hs-layout'>(</span><span class='hs-conid'>AddrRegImm</span> <span class='hs-varid'>tmp</span> <span class='hs-layout'>(</span><span class='hs-conid'>LO</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>
<a name="line-1154"></a> <span class='hs-conid'>MTCTR</span> <span class='hs-varid'>tmp</span><span class='hs-layout'>,</span>
<a name="line-1155"></a> <span class='hs-conid'>BCTR</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-1156"></a> <span class='hs-keyglyph'>]</span>
<a name="line-1157"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>code</span>
<a name="line-1158"></a>
<a name="line-1159"></a>
<a name="line-1160"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-1161"></a><span class='hs-comment'>-- 'condIntReg' and 'condFltReg': condition codes into registers</span>
<a name="line-1162"></a>
<a name="line-1163"></a><span class='hs-comment'>-- Turn those condition codes into integers now (when they appear on</span>
<a name="line-1164"></a><span class='hs-comment'>-- the right hand side of an assignment).</span>
<a name="line-1165"></a><span class='hs-comment'>-- </span>
<a name="line-1166"></a><span class='hs-comment'>-- (If applicable) Do not fill the delay slots here; you will confuse the</span>
<a name="line-1167"></a><span class='hs-comment'>-- register allocator.</span>
<a name="line-1168"></a>
<a name="line-1169"></a><a name="condIntReg"></a><span class='hs-definition'>condIntReg</span><span class='hs-layout'>,</span> <span class='hs-varid'>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-1170"></a>
<a name="line-1171"></a><a name="condReg"></a><span class='hs-definition'>condReg</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>CondCode</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>Register</span>
<a name="line-1172"></a><span class='hs-definition'>condReg</span> <span class='hs-varid'>getCond</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1173"></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'>getCond</span>
<a name="line-1174"></a> <span class='hs-keyword'>let</span>
<a name="line-1175"></a><span class='hs-comment'>{- code dst = cond_code `appOL` toOL [
<a name="line-1176"></a> BCC cond lbl1,
<a name="line-1177"></a> LI dst (ImmInt 0),
<a name="line-1178"></a> BCC ALWAYS lbl2,
<a name="line-1179"></a> NEWBLOCK lbl1,
<a name="line-1180"></a> LI dst (ImmInt 1),
<a name="line-1181"></a> BCC ALWAYS lbl2,
<a name="line-1182"></a> NEWBLOCK lbl2
<a name="line-1183"></a> ]-}</span>
<a name="line-1184"></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>
<a name="line-1185"></a> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>negate_code</span>
<a name="line-1186"></a> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-1187"></a> <span class='hs-conid'>MFCR</span> <span class='hs-varid'>dst</span><span class='hs-layout'>,</span>
<a name="line-1188"></a> <span class='hs-conid'>RLWINM</span> <span class='hs-varid'>dst</span> <span class='hs-varid'>dst</span> <span class='hs-layout'>(</span><span class='hs-varid'>bit</span> <span class='hs-varop'>+</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-num'>31</span> <span class='hs-num'>31</span>
<a name="line-1189"></a> <span class='hs-keyglyph'>]</span>
<a name="line-1190"></a>
<a name="line-1191"></a> <span class='hs-varid'>negate_code</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>do_negate</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unitOL</span> <span class='hs-layout'>(</span><span class='hs-conid'>CRNOR</span> <span class='hs-varid'>bit</span> <span class='hs-varid'>bit</span> <span class='hs-varid'>bit</span><span class='hs-layout'>)</span>
<a name="line-1192"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>nilOL</span>
<a name="line-1193"></a>
<a name="line-1194"></a> <span class='hs-layout'>(</span><span class='hs-varid'>bit</span><span class='hs-layout'>,</span> <span class='hs-varid'>do_negate</span><span class='hs-layout'>)</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-1195"></a> <span class='hs-conid'>LTT</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span>
<a name="line-1196"></a> <span class='hs-conid'>LE</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span>
<a name="line-1197"></a> <span class='hs-conid'>EQQ</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-num'>2</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span>
<a name="line-1198"></a> <span class='hs-conid'>GE</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span>
<a name="line-1199"></a> <span class='hs-conid'>GTT</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span>
<a name="line-1200"></a>
<a name="line-1201"></a> <span class='hs-conid'>NE</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-num'>2</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span>
<a name="line-1202"></a>
<a name="line-1203"></a> <span class='hs-conid'>LU</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span>
<a name="line-1204"></a> <span class='hs-conid'>LEU</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span>
<a name="line-1205"></a> <span class='hs-conid'>GEU</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span>
<a name="line-1206"></a> <span class='hs-conid'>GU</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span>
<a name="line-1207"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>panic</span> <span class='hs-str'>"PPC.CodeGen.codeReg: no match"</span>
<a name="line-1208"></a>
<a name="line-1209"></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-1210"></a>
<a name="line-1211"></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-varid'>condReg</span> <span class='hs-layout'>(</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><span class='hs-layout'>)</span>
<a name="line-1212"></a><a name="condFltReg"></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-varid'>condReg</span> <span class='hs-layout'>(</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><span class='hs-layout'>)</span>
<a name="line-1213"></a>
<a name="line-1214"></a>
<a name="line-1215"></a>
<a name="line-1216"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-1217"></a><span class='hs-comment'>-- 'trivial*Code': deal with trivial instructions</span>
<a name="line-1218"></a>
<a name="line-1219"></a><span class='hs-comment'>-- Trivial (dyadic: 'trivialCode', floating-point: 'trivialFCode',</span>
<a name="line-1220"></a><span class='hs-comment'>-- unary: 'trivialUCode', unary fl-pt:'trivialUFCode') instructions.</span>
<a name="line-1221"></a><span class='hs-comment'>-- Only look for constants on the right hand side, because that's</span>
<a name="line-1222"></a><span class='hs-comment'>-- where the generic optimizer will have put them.</span>
<a name="line-1223"></a>
<a name="line-1224"></a><span class='hs-comment'>-- Similarly, for unary instructions, we don't have to worry about</span>
<a name="line-1225"></a><span class='hs-comment'>-- matching an StInt as the argument, because genericOpt will already</span>
<a name="line-1226"></a><span class='hs-comment'>-- have handled the constant-folding.</span>
<a name="line-1227"></a>
<a name="line-1228"></a>
<a name="line-1229"></a>
<a name="line-1230"></a><span class='hs-comment'>{-
<a name="line-1231"></a>Wolfgang's PowerPC version of The Rules:
<a name="line-1232"></a>
<a name="line-1233"></a>A slightly modified version of The Rules to take advantage of the fact
<a name="line-1234"></a>that PowerPC instructions work on all registers and don't implicitly
<a name="line-1235"></a>clobber any fixed registers.
<a name="line-1236"></a>
<a name="line-1237"></a>* The only expression for which getRegister returns Fixed is (CmmReg reg).
<a name="line-1238"></a>
<a name="line-1239"></a>* If getRegister returns Any, then the code it generates may modify only:
<a name="line-1240"></a> (a) fresh temporaries
<a name="line-1241"></a> (b) the destination register
<a name="line-1242"></a> It may *not* modify global registers, unless the global
<a name="line-1243"></a> register happens to be the destination register.
<a name="line-1244"></a> It may not clobber any other registers. In fact, only ccalls clobber any
<a name="line-1245"></a> fixed registers.
<a name="line-1246"></a> Also, it may not modify the counter register (used by genCCall).
<a name="line-1247"></a>
<a name="line-1248"></a> Corollary: If a getRegister for a subexpression returns Fixed, you need
<a name="line-1249"></a> not move it to a fresh temporary before evaluating the next subexpression.
<a name="line-1250"></a> The Fixed register won't be modified.
<a name="line-1251"></a> Therefore, we don't need a counterpart for the x86's getStableReg on PPC.
<a name="line-1252"></a>
<a name="line-1253"></a>* SDM's First Rule is valid for PowerPC, too: subexpressions can depend on
<a name="line-1254"></a> the value of the destination register.
<a name="line-1255"></a>-}</span>
<a name="line-1256"></a>
<a name="line-1257"></a><a name="trivialCode"></a><span class='hs-definition'>trivialCode</span>
<a name="line-1258"></a> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Width</span>
<a name="line-1259"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-1260"></a> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</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'>RI</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Instr</span><span class='hs-layout'>)</span>
<a name="line-1261"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span>
<a name="line-1262"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span>
<a name="line-1263"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>Register</span>
<a name="line-1264"></a>
<a name="line-1265"></a><span class='hs-definition'>trivialCode</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>signed</span> <span class='hs-varid'>instr</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-1266"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>imm</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>makeImmediate</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>signed</span> <span class='hs-varid'>y</span>
<a name="line-1267"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1268"></a> <span class='hs-layout'>(</span><span class='hs-varid'>src1</span><span class='hs-layout'>,</span> <span class='hs-varid'>code1</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-1269"></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'>code1</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-varid'>instr</span> <span class='hs-varid'>dst</span> <span class='hs-varid'>src1</span> <span class='hs-layout'>(</span><span class='hs-conid'>RIImm</span> <span class='hs-varid'>imm</span><span class='hs-layout'>)</span>
<a name="line-1270"></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'>rep</span><span class='hs-layout'>)</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-1271"></a>
<a name="line-1272"></a><span class='hs-definition'>trivialCode</span> <span class='hs-varid'>rep</span> <span class='hs-keyword'>_</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-1273"></a> <span class='hs-layout'>(</span><span class='hs-varid'>src1</span><span class='hs-layout'>,</span> <span class='hs-varid'>code1</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-1274"></a> <span class='hs-layout'>(</span><span class='hs-varid'>src2</span><span class='hs-layout'>,</span> <span class='hs-varid'>code2</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-1275"></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'>code1</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>code2</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-varid'>instr</span> <span class='hs-varid'>dst</span> <span class='hs-varid'>src1</span> <span class='hs-layout'>(</span><span class='hs-conid'>RIReg</span> <span class='hs-varid'>src2</span><span class='hs-layout'>)</span>
<a name="line-1276"></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'>rep</span><span class='hs-layout'>)</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-1277"></a>
<a name="line-1278"></a><a name="trivialCodeNoImm'"></a><span class='hs-definition'>trivialCodeNoImm'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Size</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</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'>Reg</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Instr</span><span class='hs-layout'>)</span>
<a name="line-1279"></a> <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-1280"></a><span class='hs-definition'>trivialCodeNoImm'</span> <span class='hs-varid'>size</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-1281"></a> <span class='hs-layout'>(</span><span class='hs-varid'>src1</span><span class='hs-layout'>,</span> <span class='hs-varid'>code1</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-1282"></a> <span class='hs-layout'>(</span><span class='hs-varid'>src2</span><span class='hs-layout'>,</span> <span class='hs-varid'>code2</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-1283"></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'>code1</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>code2</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-varid'>instr</span> <span class='hs-varid'>dst</span> <span class='hs-varid'>src1</span> <span class='hs-varid'>src2</span>
<a name="line-1284"></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-1285"></a>
<a name="line-1286"></a><a name="trivialCodeNoImm"></a><span class='hs-definition'>trivialCodeNoImm</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Size</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'>Reg</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><span class='hs-layout'>)</span>
<a name="line-1287"></a> <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-1288"></a><span class='hs-definition'>trivialCodeNoImm</span> <span class='hs-varid'>size</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-varid'>trivialCodeNoImm'</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-1289"></a>
<a name="line-1290"></a>
<a name="line-1291"></a><a name="trivialUCode"></a><span class='hs-definition'>trivialUCode</span>
<a name="line-1292"></a> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Size</span>
<a name="line-1293"></a> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</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><span class='hs-layout'>)</span>
<a name="line-1294"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmmExpr</span>
<a name="line-1295"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NatM</span> <span class='hs-conid'>Register</span>
<a name="line-1296"></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-1297"></a> <span class='hs-layout'>(</span><span class='hs-varid'>src</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'>x</span>
<a name="line-1298"></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'>code</span> <span class='hs-varop'>`snocOL`</span> <span class='hs-varid'>instr</span> <span class='hs-varid'>dst</span> <span class='hs-varid'>src</span>
<a name="line-1299"></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-1300"></a>
<a name="line-1301"></a><span class='hs-comment'>-- There is no "remainder" instruction on the PPC, so we have to do</span>
<a name="line-1302"></a><span class='hs-comment'>-- it the hard way.</span>
<a name="line-1303"></a><span class='hs-comment'>-- The "div" parameter is the division instruction to use (DIVW or DIVWU)</span>
<a name="line-1304"></a>
<a name="line-1305"></a><a name="remainderCode"></a><span class='hs-definition'>remainderCode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Width</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</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'>Reg</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Instr</span><span class='hs-layout'>)</span>
<a name="line-1306"></a> <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-1307"></a><span class='hs-definition'>remainderCode</span> <span class='hs-varid'>rep</span> <span class='hs-varid'>div</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-1308"></a> <span class='hs-layout'>(</span><span class='hs-varid'>src1</span><span class='hs-layout'>,</span> <span class='hs-varid'>code1</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-1309"></a> <span class='hs-layout'>(</span><span class='hs-varid'>src2</span><span class='hs-layout'>,</span> <span class='hs-varid'>code2</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-1310"></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'>code1</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>code2</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-1311"></a> <span class='hs-varid'>div</span> <span class='hs-varid'>dst</span> <span class='hs-varid'>src1</span> <span class='hs-varid'>src2</span><span class='hs-layout'>,</span>
<a name="line-1312"></a> <span class='hs-conid'>MULLW</span> <span class='hs-varid'>dst</span> <span class='hs-varid'>dst</span> <span class='hs-layout'>(</span><span class='hs-conid'>RIReg</span> <span class='hs-varid'>src2</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1313"></a> <span class='hs-conid'>SUBF</span> <span class='hs-varid'>dst</span> <span class='hs-varid'>dst</span> <span class='hs-varid'>src1</span>
<a name="line-1314"></a> <span class='hs-keyglyph'>]</span>
<a name="line-1315"></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'>rep</span><span class='hs-layout'>)</span> <span class='hs-varid'>code</span><span class='hs-layout'>)</span>
<a name="line-1316"></a>
<a name="line-1317"></a>
<a name="line-1318"></a><a name="coerceInt2FP"></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-1319"></a><span class='hs-definition'>coerceInt2FP</span> <span class='hs-varid'>fromRep</span> <span class='hs-varid'>toRep</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1320"></a> <span class='hs-layout'>(</span><span class='hs-varid'>src</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'>x</span>
<a name="line-1321"></a> <span class='hs-varid'>lbl</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewLabelNat</span>
<a name="line-1322"></a> <span class='hs-varid'>itmp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegNat</span> <span class='hs-conid'>II32</span>
<a name="line-1323"></a> <span class='hs-varid'>ftmp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegNat</span> <span class='hs-conid'>FF64</span>
<a name="line-1324"></a> <span class='hs-varid'>dflags</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getDynFlagsNat</span>
<a name="line-1325"></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-1326"></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-1327"></a> <span class='hs-keyword'>let</span>
<a name="line-1328"></a> <span class='hs-varid'>code'</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>maybe_exts</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-1329"></a> <span class='hs-conid'>LDATA</span> <span class='hs-conid'>ReadOnlyData</span>
<a name="line-1330"></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-1331"></a> <span class='hs-conid'>CmmStaticLit</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmInt</span> <span class='hs-num'>0x43300000</span> <span class='hs-conid'>W32</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1332"></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-keyglyph'>]</span><span class='hs-layout'>,</span>
<a name="line-1333"></a> <span class='hs-conid'>XORIS</span> <span class='hs-varid'>itmp</span> <span class='hs-varid'>src</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-num'>0x8000</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1334"></a> <span class='hs-conid'>ST</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>itmp</span> <span class='hs-layout'>(</span><span class='hs-varid'>spRel</span> <span class='hs-num'>3</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1335"></a> <span class='hs-conid'>LIS</span> <span class='hs-varid'>itmp</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-num'>0x4330</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1336"></a> <span class='hs-conid'>ST</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>itmp</span> <span class='hs-layout'>(</span><span class='hs-varid'>spRel</span> <span class='hs-num'>2</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1337"></a> <span class='hs-conid'>LD</span> <span class='hs-conid'>FF64</span> <span class='hs-varid'>ftmp</span> <span class='hs-layout'>(</span><span class='hs-varid'>spRel</span> <span class='hs-num'>2</span><span class='hs-layout'>)</span>
<a name="line-1338"></a> <span class='hs-keyglyph'>]</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>addr_code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-1339"></a> <span class='hs-conid'>LD</span> <span class='hs-conid'>FF64</span> <span class='hs-varid'>dst</span> <span class='hs-varid'>addr</span><span class='hs-layout'>,</span>
<a name="line-1340"></a> <span class='hs-conid'>FSUB</span> <span class='hs-conid'>FF64</span> <span class='hs-varid'>dst</span> <span class='hs-varid'>ftmp</span> <span class='hs-varid'>dst</span>
<a name="line-1341"></a> <span class='hs-keyglyph'>]</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>maybe_frsp</span> <span class='hs-varid'>dst</span>
<a name="line-1342"></a>
<a name="line-1343"></a> <span class='hs-varid'>maybe_exts</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>fromRep</span> <span class='hs-keyword'>of</span>
<a name="line-1344"></a> <span class='hs-conid'>W8</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>unitOL</span> <span class='hs-varop'>$</span> <span class='hs-conid'>EXTS</span> <span class='hs-conid'>II8</span> <span class='hs-varid'>src</span> <span class='hs-varid'>src</span>
<a name="line-1345"></a> <span class='hs-conid'>W16</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>unitOL</span> <span class='hs-varop'>$</span> <span class='hs-conid'>EXTS</span> <span class='hs-conid'>II16</span> <span class='hs-varid'>src</span> <span class='hs-varid'>src</span>
<a name="line-1346"></a> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>nilOL</span>
<a name="line-1347"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>panic</span> <span class='hs-str'>"PPC.CodeGen.coerceInt2FP: no match"</span>
<a name="line-1348"></a>
<a name="line-1349"></a> <span class='hs-varid'>maybe_frsp</span> <span class='hs-varid'>dst</span>
<a name="line-1350"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>toRep</span> <span class='hs-keyword'>of</span>
<a name="line-1351"></a> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>unitOL</span> <span class='hs-varop'>$</span> <span class='hs-conid'>FRSP</span> <span class='hs-varid'>dst</span> <span class='hs-varid'>dst</span>
<a name="line-1352"></a> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>nilOL</span>
<a name="line-1353"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>panic</span> <span class='hs-str'>"PPC.CodeGen.coerceInt2FP: no match"</span>
<a name="line-1354"></a>
<a name="line-1355"></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'>toRep</span><span class='hs-layout'>)</span> <span class='hs-varid'>code'</span><span class='hs-layout'>)</span>
<a name="line-1356"></a>
<a name="line-1357"></a><a name="coerceFP2Int"></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-1358"></a><span class='hs-definition'>coerceFP2Int</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>toRep</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1359"></a> <span class='hs-comment'>-- the reps don't really matter: F*->FF64 and II32->I* are no-ops</span>
<a name="line-1360"></a> <span class='hs-layout'>(</span><span class='hs-varid'>src</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'>x</span>
<a name="line-1361"></a> <span class='hs-varid'>tmp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNewRegNat</span> <span class='hs-conid'>FF64</span>
<a name="line-1362"></a> <span class='hs-keyword'>let</span>
<a name="line-1363"></a> <span class='hs-varid'>code'</span> <span class='hs-varid'>dst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>code</span> <span class='hs-varop'>`appOL`</span> <span class='hs-varid'>toOL</span> <span class='hs-keyglyph'>[</span>
<a name="line-1364"></a> <span class='hs-comment'>-- convert to int in FP reg</span>
<a name="line-1365"></a> <span class='hs-conid'>FCTIWZ</span> <span class='hs-varid'>tmp</span> <span class='hs-varid'>src</span><span class='hs-layout'>,</span>
<a name="line-1366"></a> <span class='hs-comment'>-- store value (64bit) from FP to stack</span>
<a name="line-1367"></a> <span class='hs-conid'>ST</span> <span class='hs-conid'>FF64</span> <span class='hs-varid'>tmp</span> <span class='hs-layout'>(</span><span class='hs-varid'>spRel</span> <span class='hs-num'>2</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-1368"></a> <span class='hs-comment'>-- read low word of value (high word is undefined)</span>
<a name="line-1369"></a> <span class='hs-conid'>LD</span> <span class='hs-conid'>II32</span> <span class='hs-varid'>dst</span> <span class='hs-layout'>(</span><span class='hs-varid'>spRel</span> <span class='hs-num'>3</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-1370"></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'>toRep</span><span class='hs-layout'>)</span> <span class='hs-varid'>code'</span><span class='hs-layout'>)</span>
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