<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html> <head> <!-- Generated by HsColour, http://www.cs.york.ac.uk/fp/darcs/hscolour/ --> <title>nativeGen/SPARC/CodeGen/Base.hs</title> <link type='text/css' rel='stylesheet' href='hscolour.css' /> </head> <body> <pre><a name="line-1"></a> <a name="line-2"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>SPARC</span><span class='hs-varop'>.</span><span class='hs-conid'>CodeGen</span><span class='hs-varop'>.</span><span class='hs-conid'>Base</span> <span class='hs-layout'>(</span> <a name="line-3"></a> <span class='hs-conid'>InstrBlock</span><span class='hs-layout'>,</span> <a name="line-4"></a> <span class='hs-conid'>CondCode</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <a name="line-5"></a> <span class='hs-conid'>ChildCode64</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <a name="line-6"></a> <span class='hs-conid'>Amode</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <a name="line-7"></a> <a name="line-8"></a> <span class='hs-conid'>Register</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <a name="line-9"></a> <span class='hs-varid'>setSizeOfRegister</span><span class='hs-layout'>,</span> <a name="line-10"></a> <a name="line-11"></a> <span class='hs-varid'>getRegisterReg</span><span class='hs-layout'>,</span> <a name="line-12"></a> <span class='hs-varid'>mangleIndexTree</span> <a name="line-13"></a><span class='hs-layout'>)</span> <a name="line-14"></a> <a name="line-15"></a><span class='hs-keyword'>where</span> <a name="line-16"></a> <a name="line-17"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>SPARC</span><span class='hs-varop'>.</span><span class='hs-conid'>Instr</span> <a name="line-18"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>SPARC</span><span class='hs-varop'>.</span><span class='hs-conid'>Cond</span> <a name="line-19"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>SPARC</span><span class='hs-varop'>.</span><span class='hs-conid'>AddrMode</span> <a name="line-20"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>SPARC</span><span class='hs-varop'>.</span><span class='hs-conid'>Regs</span> <a name="line-21"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Size</span> <a name="line-22"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Reg</span> <a name="line-23"></a> <a name="line-24"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Cmm</span> <a name="line-25"></a> <a name="line-26"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Outputable</span> <a name="line-27"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>OrdList</span> <a name="line-28"></a> <a name="line-29"></a><a name="InstrBlock"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-30"></a><a name="InstrBlock"></a><span class='hs-comment'>-- | 'InstrBlock's are the insn sequences generated by the insn selectors.</span> <a name="line-31"></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-32"></a><a name="InstrBlock"></a><span class='hs-comment'>-- left-to-right traversal yields the insns in the correct order.</span> <a name="line-33"></a><a name="InstrBlock"></a><span class='hs-comment'>--</span> <a name="line-34"></a><a name="InstrBlock"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>InstrBlock</span> <a name="line-35"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>OrdList</span> <span class='hs-conid'>Instr</span> <a name="line-36"></a> <a name="line-37"></a> <a name="line-38"></a><a name="CondCode"></a><span class='hs-comment'>-- | Condition codes passed up the tree.</span> <a name="line-39"></a><a name="CondCode"></a><span class='hs-comment'>--</span> <a name="line-40"></a><a name="CondCode"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>CondCode</span> <a name="line-41"></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-42"></a> <a name="line-43"></a> <a name="line-44"></a><a name="ChildCode64"></a><span class='hs-comment'>-- | a.k.a "Register64"</span> <a name="line-45"></a><a name="ChildCode64"></a><span class='hs-comment'>-- Reg is the lower 32-bit temporary which contains the result. </span> <a name="line-46"></a><a name="ChildCode64"></a><span class='hs-comment'>-- Use getHiVRegFromLo to find the other VRegUnique. </span> <a name="line-47"></a><a name="ChildCode64"></a><span class='hs-comment'>--</span> <a name="line-48"></a><a name="ChildCode64"></a><span class='hs-comment'>-- Rules of this simplified insn selection game are therefore that</span> <a name="line-49"></a><a name="ChildCode64"></a><span class='hs-comment'>-- the returned Reg may be modified</span> <a name="line-50"></a><a name="ChildCode64"></a><span class='hs-comment'>--</span> <a name="line-51"></a><a name="ChildCode64"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>ChildCode64</span> <a name="line-52"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ChildCode64</span> <a name="line-53"></a> <span class='hs-conid'>InstrBlock</span> <a name="line-54"></a> <span class='hs-conid'>Reg</span> <a name="line-55"></a> <a name="line-56"></a> <a name="line-57"></a><a name="Amode"></a><span class='hs-comment'>-- | Holds code that references a memory address.</span> <a name="line-58"></a><a name="Amode"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Amode</span> <a name="line-59"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Amode</span> <a name="line-60"></a> <span class='hs-comment'>-- the AddrMode we can use in the instruction </span> <a name="line-61"></a> <span class='hs-comment'>-- that does the real load\/store.</span> <a name="line-62"></a> <span class='hs-conid'>AddrMode</span> <a name="line-63"></a> <a name="line-64"></a> <span class='hs-comment'>-- other setup code we have to run first before we can use the</span> <a name="line-65"></a> <span class='hs-comment'>-- above AddrMode.</span> <a name="line-66"></a> <span class='hs-conid'>InstrBlock</span> <a name="line-67"></a> <a name="line-68"></a> <a name="line-69"></a> <a name="line-70"></a><a name="Register"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-71"></a><a name="Register"></a><span class='hs-comment'>-- | Code to produce a result into a register.</span> <a name="line-72"></a><a name="Register"></a><span class='hs-comment'>-- If the result must go in a specific register, it comes out as Fixed.</span> <a name="line-73"></a><a name="Register"></a><span class='hs-comment'>-- Otherwise, the parent can decide which register to put it in.</span> <a name="line-74"></a><a name="Register"></a><span class='hs-comment'>--</span> <a name="line-75"></a><a name="Register"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Register</span> <a name="line-76"></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-77"></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-78"></a> <a name="line-79"></a> <a name="line-80"></a><a name="setSizeOfRegister"></a><span class='hs-comment'>-- | Change the size field in a Register.</span> <a name="line-81"></a><span class='hs-definition'>setSizeOfRegister</span> <a name="line-82"></a> <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-83"></a> <a name="line-84"></a><span class='hs-definition'>setSizeOfRegister</span> <span class='hs-varid'>reg</span> <span class='hs-varid'>size</span> <a name="line-85"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>reg</span> <span class='hs-keyword'>of</span> <a name="line-86"></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> <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-87"></a> <span class='hs-conid'>Any</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>codefn</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-88"></a> <a name="line-89"></a> <a name="line-90"></a><a name="getRegisterReg"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span> <a name="line-91"></a><span class='hs-comment'>-- | Grab the Reg for a CmmReg</span> <a name="line-92"></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-93"></a> <a name="line-94"></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-95"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>RegVirtual</span> <span class='hs-varop'>$</span> <span class='hs-varid'>mkVirtualReg</span> <span class='hs-varid'>u</span> <span class='hs-layout'>(</span><span class='hs-varid'>cmmTypeSize</span> <span class='hs-varid'>pk</span><span class='hs-layout'>)</span> <a name="line-96"></a> <a name="line-97"></a><span class='hs-definition'>getRegisterReg</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmmGlobal</span> <span class='hs-varid'>mid</span><span class='hs-layout'>)</span> <a name="line-98"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>get_GlobalReg_reg_or_addr</span> <span class='hs-varid'>mid</span> <span class='hs-keyword'>of</span> <a name="line-99"></a> <span class='hs-conid'>Left</span> <span class='hs-varid'>rr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>RegReal</span> <span class='hs-varid'>rr</span> <a name="line-100"></a> <a name="line-101"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>pprPanic</span> <span class='hs-str'>"SPARC.CodeGen.Base.getRegisterReg: global is in memory"</span> <a name="line-102"></a> <span class='hs-layout'>(</span><span class='hs-varid'>ppr</span> <span class='hs-varop'>$</span> <span class='hs-conid'>CmmGlobal</span> <span class='hs-varid'>mid</span><span class='hs-layout'>)</span> <a name="line-103"></a> <a name="line-104"></a> <a name="line-105"></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-106"></a><span class='hs-comment'>-- CmmExprs into CmmRegOff?</span> <a name="line-107"></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-108"></a> <a name="line-109"></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-110"></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-111"></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-112"></a> <a name="line-113"></a><span class='hs-definition'>mangleIndexTree</span> <span class='hs-keyword'>_</span> <a name="line-114"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>panic</span> <span class='hs-str'>"SPARC.CodeGen.Base.mangleIndexTree: no match"</span> <a name="line-115"></a> <a name="line-116"></a> <a name="line-117"></a> <a name="line-118"></a> </pre></body> </html>
