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<h3>
Andreas Klebinger pushed to branch wip/andreask/xchg_primop
at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
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<h4>
Commits:
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<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f2b661a69f5fac51d7f7defc374d363006717362">f2b661a6</a></strong>
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<span>by Andreas Klebinger</span>
<i>at 2020-05-15T15:40:30+02:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Make XCHG a Op,Reg instr as it should be
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<h4>3 changed files:</h4>
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<a href="#2bae5947e9412f6deebf4db7dcb89d780913130f">
compiler/GHC/CmmToAsm/X86/CodeGen.hs
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<a href="#7b360ca84c1b9aaecc0f9de207a7698dc36514fe">
compiler/GHC/CmmToAsm/X86/Instr.hs
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<a href="#335d279236d65dcf13f2bab3891e515cb803203c">
compiler/GHC/CmmToAsm/X86/Ppr.hs
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<h4>Changes:</h4>
<li id="2bae5947e9412f6deebf4db7dcb89d780913130f">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f2b661a69f5fac51d7f7defc374d363006717362#2bae5947e9412f6deebf4db7dcb89d780913130f"><strong>compiler/GHC/CmmToAsm/X86/CodeGen.hs</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -2518,22 +2518,20 @@ genCCall' _ is32Bit (PrimTarget (MO_Cmpxchg width)) [dst] [addr, old, new] _ = d</td>
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2518
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<pre style="margin: 0;"> <span id="LC2518" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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2519
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<pre style="margin: 0;"> <span id="LC2519" class="line" lang="haskell"> <span class="n" style="color: #333;">format</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">intFormat</span> <span class="n" style="color: #333;">width</span></span>
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2520
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<pre style="margin: 0;"> <span id="LC2520" class="line" lang="haskell"></span>
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2521
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<pre style="margin: 0;">-<span id="LC2521" class="line" lang="haskell"><span class="n" style="color: #333;">genCCall'</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">is32Bit</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PrimTarget</span> <span class="kt" style="color: #458; font-weight: 600;">MO_Xchg</span><span class="p">)</span> <span class="p">[</span><span class="n" style="color: #333;">dst</span><span class="p">]</span> <span class="p">[</span><span class="n" style="color: #333;">addr</span><span class="p">,</span> <span class="n" style="color: #333;">value</span><span class="p">]</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span></span>
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2522
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<pre style="margin: 0;">-<span id="LC2522" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Amode</span> <span class="n" style="color: #333;">amode</span> <span class="n" style="color: #333;">addr_code</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getSimpleAmode</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">is32Bit</span> <span class="n" style="color: #333;">addr</span></span>
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<pre style="margin: 0;">-<span id="LC2523" class="line" lang="haskell"> <span class="n" style="color: #333;">newval</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getNewRegNat</span> <span class="n" style="color: #333;">format</span></span>
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<pre style="margin: 0;">-<span id="LC2524" class="line" lang="haskell"> <span class="n" style="color: #333;">newval_code</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getAnyReg</span> <span class="n" style="color: #333;">value</span></span>
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<pre style="margin: 0;">-<span id="LC2525" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">platform</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">targetPlatform</span> <span class="n" style="color: #333;">dflags</span></span>
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<pre style="margin: 0;">-<span id="LC2526" class="line" lang="haskell"> <span class="n" style="color: #333;">dst_r</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">getRegisterReg</span> <span class="n" style="color: #333;">platform</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CmmLocal</span> <span class="n" style="color: #333;">dst</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC2527" class="line" lang="haskell"> <span class="n" style="color: #333;">code</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">toOL</span></span>
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<pre style="margin: 0;">-<span id="LC2528" class="line" lang="haskell"> <span class="p">[</span> <span class="kt" style="color: #458; font-weight: 600;">MOV</span> <span class="n" style="color: #333;">format</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">OpReg</span> <span class="n" style="color: #333;">newval</span><span class="p">)</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">OpReg</span> <span class="n" style="color: #333;">eax</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC2529" class="line" lang="haskell"> <span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">LOCK</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">XCHG</span> <span class="n" style="color: #333;">format</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">OpReg</span> <span class="n" style="color: #333;">eax</span><span class="p">)</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">OpAddr</span> <span class="n" style="color: #333;">amode</span><span class="p">))</span></span>
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<pre style="margin: 0;">-<span id="LC2530" class="line" lang="haskell"> <span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">MOV</span> <span class="n" style="color: #333;">format</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">OpReg</span> <span class="n" style="color: #333;">eax</span><span class="p">)</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">OpReg</span> <span class="n" style="color: #333;">dst_r</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC2521" class="line" lang="haskell"><span class="n" style="color: #333;">genCCall'</span> <span class="n" style="color: #333;">config</span> <span class="n" style="color: #333;">is32Bit</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PrimTarget</span> <span class="kt" style="color: #458; font-weight: 600;">MO_Xchg</span><span class="p">)</span> <span class="p">[</span><span class="n" style="color: #333;">dst</span><span class="p">]</span> <span class="p">[</span><span class="n" style="color: #333;">addr</span><span class="p">,</span> <span class="n" style="color: #333;">value</span><span class="p">]</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span></span>
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<pre style="margin: 0;">+<span id="LC2522" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">dst_r</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">getRegisterReg</span> <span class="n" style="color: #333;">platform</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CmmLocal</span> <span class="n" style="color: #333;">dst</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC2523" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Amode</span> <span class="n" style="color: #333;">amode</span> <span class="n" style="color: #333;">addr_code</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getSimpleAmode</span> <span class="n" style="color: #333;">is32Bit</span> <span class="n" style="color: #333;">addr</span></span>
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2524
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<pre style="margin: 0;">+<span id="LC2524" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">newval</span><span class="p">,</span> <span class="n" style="color: #333;">newval_code</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getSomeReg</span> <span class="n" style="color: #333;">value</span></span>
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2525
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<pre style="margin: 0;">+<span id="LC2525" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">code</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">toOL</span></span>
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2526
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<pre style="margin: 0;">+<span id="LC2526" class="line" lang="haskell"> <span class="p">[</span> <span class="kt" style="color: #458; font-weight: 600;">MOV</span> <span class="n" style="color: #333;">format</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">OpReg</span> <span class="n" style="color: #333;">newval</span><span class="p">)</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">OpReg</span> <span class="n" style="color: #333;">dst_r</span><span class="p">)</span></span>
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2527
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<pre style="margin: 0;">+<span id="LC2527" class="line" lang="haskell"> <span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">XCHG</span> <span class="n" style="color: #333;">format</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">OpAddr</span> <span class="n" style="color: #333;">amode</span><span class="p">)</span> <span class="n" style="color: #333;">dst_r</span></span>
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2531
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2528
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<pre style="margin: 0;"> <span id="LC2528" class="line" lang="haskell"> <span class="p">]</span></span>
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2532
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<pre style="margin: 0;">-<span id="LC2532" class="line" lang="haskell"> <span class="n" style="color: #333;">return</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">addr_code</span> <span class="p">`</span><span class="n" style="color: #333;">appOL</span><span class="p">`</span> <span class="n" style="color: #333;">newval_code</span> <span class="n" style="color: #333;"><span class="idiff left">newval</span></span><span class="idiff right"> </span><span class="p">`</span><span class="n" style="color: #333;">appOL</span><span class="p">`</span> <span class="n" style="color: #333;">code</span></span>
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2529
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<pre style="margin: 0;">+<span id="LC2529" class="line" lang="haskell"> <span class="n" style="color: #333;">return</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">addr_code</span> <span class="p">`</span><span class="n" style="color: #333;">appOL</span><span class="p">`</span> <span class="n" style="color: #333;">newval_code</span> <span class="p">`</span><span class="n" style="color: #333;">appOL</span><span class="p">`</span> <span class="n" style="color: #333;">code</span></span>
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2533
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2530
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<pre style="margin: 0;"> <span id="LC2530" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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2534
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2531
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<pre style="margin: 0;"> <span id="LC2531" class="line" lang="haskell"> <span class="n" style="color: #333;">format</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">intFormat</span> <span class="n" style="color: #333;">width</span></span>
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2535
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2532
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<pre style="margin: 0;"> <span id="LC2532" class="line" lang="haskell"> <span class="n" style="color: #333;">width</span> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">is32Bit</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">W32</span></span>
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2536
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2533
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<pre style="margin: 0;"> <span id="LC2533" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">W64</span></span>
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2534
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<pre style="margin: 0;">+<span id="LC2534" class="line" lang="haskell"> <span class="n" style="color: #333;">platform</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">ncgPlatform</span> <span class="n" style="color: #333;">config</span></span>
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2537
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2535
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<pre style="margin: 0;"> <span id="LC2535" class="line" lang="haskell"></span>
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2538
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2536
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<pre style="margin: 0;"> <span id="LC2536" class="line" lang="haskell"><span class="n" style="color: #333;">genCCall'</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">is32Bit</span> <span class="n" style="color: #333;">target</span> <span class="n" style="color: #333;">dest_regs</span> <span class="n" style="color: #333;">args</span> <span class="n" style="color: #333;">bid</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span></span>
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2537
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<pre style="margin: 0;"> <span id="LC2537" class="line" lang="haskell"> <span class="n" style="color: #333;">platform</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">ncgPlatform</span> <span class="o" style="font-weight: 600;"><$></span> <span class="n" style="color: #333;">getConfig</span></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f2b661a69f5fac51d7f7defc374d363006717362#7b360ca84c1b9aaecc0f9de207a7698dc36514fe"><strong>compiler/GHC/CmmToAsm/X86/Instr.hs</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -329,7 +329,7 @@ data Instr</td>
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<pre style="margin: 0;"> <span id="LC329" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">LOCK</span> <span class="kt" style="color: #458; font-weight: 600;">Instr</span> <span class="c1" style="color: #998; font-style: italic;">-- lock prefix</span></span>
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<pre style="margin: 0;"> <span id="LC330" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">XADD</span> <span class="kt" style="color: #458; font-weight: 600;">Format</span> <span class="kt" style="color: #458; font-weight: 600;">Operand</span> <span class="kt" style="color: #458; font-weight: 600;">Operand</span> <span class="c1" style="color: #998; font-style: italic;">-- src (r), dst (r/m)</span></span>
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331
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331
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<pre style="margin: 0;"> <span id="LC331" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">CMPXCHG</span> <span class="kt" style="color: #458; font-weight: 600;">Format</span> <span class="kt" style="color: #458; font-weight: 600;">Operand</span> <span class="kt" style="color: #458; font-weight: 600;">Operand</span> <span class="c1" style="color: #998; font-style: italic;">-- src (r), dst (r/m), eax implicit</span></span>
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332
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<pre style="margin: 0;">-<span id="LC332" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">XCHG</span> <span class="kt" style="color: #458; font-weight: 600;">Format</span> <span class="kt" style="color: #458; font-weight: 600;">Operand</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">Operand</span></span><span class="idiff"> </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">-- src (r</span>), dst (r/m)</span></span>
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<pre style="margin: 0;">+<span id="LC332" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">XCHG</span> <span class="kt" style="color: #458; font-weight: 600;">Format</span> <span class="kt" style="color: #458; font-weight: 600;">Operand</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">Reg</span></span><span class="idiff"> </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">-- src (r/m</span>), dst (r/m)</span></span>
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<pre style="margin: 0;"> <span id="LC333" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">MFENCE</span></span>
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334
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<pre style="margin: 0;"> <span id="LC334" class="line" lang="haskell"></span>
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335
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<pre style="margin: 0;"> <span id="LC335" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">PrefetchVariant</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">NTA</span> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">Lvl0</span> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">Lvl1</span> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">Lvl2</span></span>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="432" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -432,7 +432,7 @@ x86_regUsageOfInstr platform instr</td>
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432
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<pre style="margin: 0;"> <span id="LC432" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">LOCK</span> <span class="n" style="color: #333;">i</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">x86_regUsageOfInstr</span> <span class="n" style="color: #333;">platform</span> <span class="n" style="color: #333;">i</span></span>
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433
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433
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<pre style="margin: 0;"> <span id="LC433" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">XADD</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">dst</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">usageMM</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">dst</span></span>
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434
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434
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<pre style="margin: 0;"> <span id="LC434" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">CMPXCHG</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">dst</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">usageRMM</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">dst</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">OpReg</span> <span class="n" style="color: #333;">eax</span><span class="p">)</span></span>
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435
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<pre style="margin: 0;">-<span id="LC435" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">XCHG</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">dst</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">usage<span class="idiff left">RMM</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">src</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">dst</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">OpReg</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">eax</span></span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC435" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">XCHG</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">dst</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">usage<span class="idiff left">MM</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">src</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">OpReg</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">dst</span></span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC436" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">MFENCE</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">noUsage</span></span>
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<pre style="margin: 0;"> <span id="LC437" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC438" class="line" lang="haskell"> <span class="n" style="color: #333;">_other</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">panic</span> <span class="s" style="color: #d14;">"regUsage: unrecognised instr"</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="591" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="591" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -591,7 +591,7 @@ x86_patchRegsOfInstr instr env</td>
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591
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<pre style="margin: 0;"> <span id="LC591" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">LOCK</span> <span class="n" style="color: #333;">i</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LOCK</span> <span class="p">(</span><span class="n" style="color: #333;">x86_patchRegsOfInstr</span> <span class="n" style="color: #333;">i</span> <span class="n" style="color: #333;">env</span><span class="p">)</span></span>
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592
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592
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<pre style="margin: 0;"> <span id="LC592" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">XADD</span> <span class="n" style="color: #333;">fmt</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">dst</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">patch2</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">XADD</span> <span class="n" style="color: #333;">fmt</span><span class="p">)</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">dst</span></span>
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593
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593
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<pre style="margin: 0;"> <span id="LC593" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">CMPXCHG</span> <span class="n" style="color: #333;">fmt</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">dst</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">patch2</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CMPXCHG</span> <span class="n" style="color: #333;">fmt</span><span class="p">)</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">dst</span></span>
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594
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<pre style="margin: 0;">-<span id="LC594" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">XCHG</span> <span class="n" style="color: #333;">fmt</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">dst</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;"><span class="idiff left">patch2</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">XCHG</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">fmt</span></span><span class="p"><span class="idiff">)</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">src</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">dst</span></span></span>
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<pre style="margin: 0;">+<span id="LC594" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">XCHG</span> <span class="n" style="color: #333;">fmt</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">dst</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">XCHG</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">fmt</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">patchOp</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">src</span></span><span class="p"><span class="idiff">)</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">env</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">dst</span></span><span class="p"><span class="idiff right">)</span></span></span>
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<pre style="margin: 0;"> <span id="LC595" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">MFENCE</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">instr</span></span>
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596
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<pre style="margin: 0;"> <span id="LC596" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC597" class="line" lang="haskell"> <span class="n" style="color: #333;">_other</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">panic</span> <span class="s" style="color: #d14;">"patchRegs: unrecognised instr"</span></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f2b661a69f5fac51d7f7defc374d363006717362#335d279236d65dcf13f2bab3891e515cb803203c"><strong>compiler/GHC/CmmToAsm/X86/Ppr.hs</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -825,7 +825,7 @@ pprInstr platform i = case i of</td>
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<pre style="margin: 0;"> <span id="LC825" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">pprCondInstr</span> <span class="p">(</span><span class="n" style="color: #333;">sLit</span> <span class="s" style="color: #d14;">"set"</span><span class="p">)</span> <span class="n" style="color: #333;">cond</span> <span class="p">(</span><span class="n" style="color: #333;">pprOperand</span> <span class="n" style="color: #333;">platform</span> <span class="kt" style="color: #458; font-weight: 600;">II8</span> <span class="n" style="color: #333;">op</span><span class="p">)</span></span>
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826
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<pre style="margin: 0;"> <span id="LC826" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC827" class="line" lang="haskell"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">XCHG</span> <span class="n" style="color: #333;">format</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">val</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC828" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">pprFormatOp<span class="idiff left right">Op</span></span> <span class="p">(</span><span class="n" style="color: #333;">sLit</span> <span class="s" style="color: #d14;">"xchg"</span><span class="p">)</span> <span class="n" style="color: #333;">format</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">val</span></span>
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<pre style="margin: 0;">+<span id="LC828" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">pprFormatOp<span class="idiff left right">Reg</span></span> <span class="p">(</span><span class="n" style="color: #333;">sLit</span> <span class="s" style="color: #d14;">"xchg"</span><span class="p">)</span> <span class="n" style="color: #333;">format</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">val</span></span>
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<pre style="margin: 0;"> <span id="LC829" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC830" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">JXX</span> <span class="n" style="color: #333;">cond</span> <span class="n" style="color: #333;">blockid</span></span>
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<pre style="margin: 0;"> <span id="LC831" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">pprCondInstr</span> <span class="p">(</span><span class="n" style="color: #333;">sLit</span> <span class="s" style="color: #d14;">"j"</span><span class="p">)</span> <span class="n" style="color: #333;">cond</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">lab</span><span class="p">)</span></span>
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