<?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/Imm.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'>Imm</span> <span class='hs-layout'>(</span> <a name="line-3"></a> <span class='hs-comment'>-- immediate values</span> <a name="line-4"></a> <span class='hs-conid'>Imm</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-varid'>strImmLit</span><span class='hs-layout'>,</span> <a name="line-6"></a> <span class='hs-varid'>litToImm</span> <a name="line-7"></a><span class='hs-layout'>)</span> <a name="line-8"></a> <a name="line-9"></a><span class='hs-keyword'>where</span> <a name="line-10"></a> <a name="line-11"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Cmm</span> <a name="line-12"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>CLabel</span> <a name="line-13"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>BlockId</span> <a name="line-14"></a> <a name="line-15"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Pretty</span> <a name="line-16"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Panic</span> <a name="line-17"></a> <a name="line-18"></a><a name="Imm"></a><span class='hs-comment'>-- | An immediate value.</span> <a name="line-19"></a><a name="Imm"></a><span class='hs-comment'>-- Not all of these are directly representable by the machine. </span> <a name="line-20"></a><a name="Imm"></a><span class='hs-comment'>-- Things like ImmLit are slurped out and put in a data segment instead.</span> <a name="line-21"></a><a name="Imm"></a><span class='hs-comment'>--</span> <a name="line-22"></a><a name="Imm"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Imm</span> <a name="line-23"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ImmInt</span> <span class='hs-conid'>Int</span> <a name="line-24"></a> <a name="line-25"></a> <span class='hs-comment'>-- Sigh.</span> <a name="line-26"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ImmInteger</span> <span class='hs-conid'>Integer</span> <a name="line-27"></a> <a name="line-28"></a> <span class='hs-comment'>-- AbstractC Label (with baggage)</span> <a name="line-29"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ImmCLbl</span> <span class='hs-conid'>CLabel</span> <a name="line-30"></a> <a name="line-31"></a> <span class='hs-comment'>-- Simple string</span> <a name="line-32"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ImmLit</span> <span class='hs-conid'>Doc</span> <a name="line-33"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ImmIndex</span> <span class='hs-conid'>CLabel</span> <span class='hs-conid'>Int</span> <a name="line-34"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ImmFloat</span> <span class='hs-conid'>Rational</span> <a name="line-35"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ImmDouble</span> <span class='hs-conid'>Rational</span> <a name="line-36"></a> <a name="line-37"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ImmConstantSum</span> <span class='hs-conid'>Imm</span> <span class='hs-conid'>Imm</span> <a name="line-38"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ImmConstantDiff</span> <span class='hs-conid'>Imm</span> <span class='hs-conid'>Imm</span> <a name="line-39"></a> <a name="line-40"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>LO</span> <span class='hs-conid'>Imm</span> <a name="line-41"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>HI</span> <span class='hs-conid'>Imm</span> <a name="line-42"></a> <a name="line-43"></a> <a name="line-44"></a><a name="strImmLit"></a><span class='hs-comment'>-- | Create a ImmLit containing this string.</span> <a name="line-45"></a><span class='hs-definition'>strImmLit</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Imm</span> <a name="line-46"></a><span class='hs-definition'>strImmLit</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ImmLit</span> <span class='hs-layout'>(</span><span class='hs-varid'>text</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <a name="line-47"></a> <a name="line-48"></a> <a name="line-49"></a><a name="litToImm"></a><span class='hs-comment'>-- | Convert a CmmLit to an Imm.</span> <a name="line-50"></a><span class='hs-comment'>-- Narrow to the width: a CmmInt might be out of</span> <a name="line-51"></a><span class='hs-comment'>-- range, but we assume that ImmInteger only contains</span> <a name="line-52"></a><span class='hs-comment'>-- in-range values. A signed value should be fine here.</span> <a name="line-53"></a><span class='hs-comment'>--</span> <a name="line-54"></a><span class='hs-definition'>litToImm</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmmLit</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Imm</span> <a name="line-55"></a><span class='hs-definition'>litToImm</span> <span class='hs-varid'>lit</span> <a name="line-56"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>lit</span> <span class='hs-keyword'>of</span> <a name="line-57"></a> <span class='hs-conid'>CmmInt</span> <span class='hs-varid'>i</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ImmInteger</span> <span class='hs-layout'>(</span><span class='hs-varid'>narrowS</span> <span class='hs-varid'>w</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span> <a name="line-58"></a> <span class='hs-conid'>CmmFloat</span> <span class='hs-varid'>f</span> <span class='hs-conid'>W32</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ImmFloat</span> <span class='hs-varid'>f</span> <a name="line-59"></a> <span class='hs-conid'>CmmFloat</span> <span class='hs-varid'>f</span> <span class='hs-conid'>W64</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ImmDouble</span> <span class='hs-varid'>f</span> <a name="line-60"></a> <span class='hs-conid'>CmmLabel</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ImmCLbl</span> <span class='hs-varid'>l</span> <a name="line-61"></a> <span class='hs-conid'>CmmLabelOff</span> <span class='hs-varid'>l</span> <span class='hs-varid'>off</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ImmIndex</span> <span class='hs-varid'>l</span> <span class='hs-varid'>off</span> <a name="line-62"></a> <a name="line-63"></a> <span class='hs-conid'>CmmLabelDiffOff</span> <span class='hs-varid'>l1</span> <span class='hs-varid'>l2</span> <span class='hs-varid'>off</span> <a name="line-64"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ImmConstantSum</span> <a name="line-65"></a> <span class='hs-layout'>(</span><span class='hs-conid'>ImmConstantDiff</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmCLbl</span> <span class='hs-varid'>l1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImmCLbl</span> <span class='hs-varid'>l2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <a name="line-66"></a> <span class='hs-layout'>(</span><span class='hs-conid'>ImmInt</span> <span class='hs-varid'>off</span><span class='hs-layout'>)</span> <a name="line-67"></a> <a name="line-68"></a> <span class='hs-conid'>CmmBlock</span> <span class='hs-varid'>id</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ImmCLbl</span> <span class='hs-layout'>(</span><span class='hs-varid'>infoTblLbl</span> <span class='hs-varid'>id</span><span class='hs-layout'>)</span> <a name="line-69"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>panic</span> <span class='hs-str'>"SPARC.Regs.litToImm: no match"</span> <a name="line-70"></a> <a name="line-71"></a> </pre></body> </html>
