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<h3>
Marge Bot pushed to branch master
at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
</h3>
<h4>
Commits:
</h4>
<ul>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/edcef7b384ca5af6e67d58c39779d03f80768538">edcef7b3</a></strong>
<div>
<span>by Artem Pyanykh</span>
<i>at 2019-04-14T05:26:35Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">codegen: unroll memcpy calls for small bytearrays
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/6094d43f36bdab5ff3f246afca9a6018545fdd73">6094d43f</a></strong>
<div>
<span>by Artem Pyanykh</span>
<i>at 2019-04-14T05:26:35Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">docs: mention memcpy optimization for ByteArrays in 8.10.1-notes
</pre>
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<h4>7 changed files:</h4>
<ul>
<li class="file-stats">
<a href="#03104abc160df5563171ac063230f7473cb173c3">
compiler/cmm/CmmExpr.hs
</a>
</li>
<li class="file-stats">
<a href="#731b07c16b2f4bb31dd7defa4ceef54e74473cc7">
compiler/codeGen/StgCmmPrim.hs
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<li class="file-stats">
<a href="#e08a7f13d9b4dd9216080725eb81bf254597216d">
compiler/nativeGen/X86/CodeGen.hs
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<li class="file-stats">
<a href="#d6904e295957d55c64f4949aa3b54695dd57dd76">
docs/users_guide/8.10.1-notes.rst
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<li class="file-stats">
<a href="#47a3b36acbc6601cd2d1c201a9406fcb8d08d34c">
testsuite/tests/codeGen/should_gen_asm/all.T
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<li class="file-stats">
<a href="#24c15de15dabe42b1e17abf6a5398af7cf00f6bf">
<span class="new-file">
+
testsuite/tests/codeGen/should_gen_asm/bytearray-memcpy-unroll.asm
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<li class="file-stats">
<a href="#4bf39bffc99caef77bef91142757790e22ecfb6f">
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+
testsuite/tests/codeGen/should_gen_asm/bytearray-memcpy-unroll.hs
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<h4>Changes:</h4>
<li id="03104abc160df5563171ac063230f7473cb173c3">
<a href="https://gitlab.haskell.org/ghc/ghc/compare/6febc444c0abea6c033174aa0e813c950b9b2877...6094d43f36bdab5ff3f246afca9a6018545fdd73#03104abc160df5563171ac063230f7473cb173c3"><strong>compiler/cmm/CmmExpr.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">@@ -5,7 +5,7 @@</td>
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<pre style="margin: 0;"> <span id="LC5" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE UndecidableInstances #-}</span></span>
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<pre style="margin: 0;"> <span id="LC6" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC7" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">module</span> <span class="nn" style="color: #555;">CmmExpr</span></span>
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<pre style="margin: 0;">-<span id="LC8" class="line" lang="haskell"> <span class="p">(</span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span><span class="p">(</span><span class="o" style="font-weight: 600;">..</span><span class="p">),</span> <span class="nf" style="color: #900; font-weight: 600;">cmmExprType</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">cmmExprWidth</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">maybeInvertCmmExpr</span></span>
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<pre style="margin: 0;">+<span id="LC8" class="line" lang="haskell"> <span class="p">(</span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span><span class="p">(</span><span class="o" style="font-weight: 600;">..</span><span class="p">),</span> <span class="nf" style="color: #900; font-weight: 600;">cmmExprType</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">cmmExprWidth</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;"><span class="idiff left">cmmExprAlignment</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff right"> </span><span class="nf" style="color: #900; font-weight: 600;">maybeInvertCmmExpr</span></span>
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<td class="diff-line-num old_line" data-linenumber="9" 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">
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<pre style="margin: 0;"> <span id="LC9" class="line" lang="haskell"> <span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">CmmReg</span><span class="p">(</span><span class="o" style="font-weight: 600;">..</span><span class="p">),</span> <span class="nf" style="color: #900; font-weight: 600;">cmmRegType</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">cmmRegWidth</span></span>
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<pre style="margin: 0;"> <span id="LC10" class="line" lang="haskell"> <span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">CmmLit</span><span class="p">(</span><span class="o" style="font-weight: 600;">..</span><span class="p">),</span> <span class="nf" style="color: #900; font-weight: 600;">cmmLitType</span></span>
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<td class="diff-line-num old_line" data-linenumber="11" 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">
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<pre style="margin: 0;"> <span id="LC11" class="line" lang="haskell"> <span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">LocalReg</span><span class="p">(</span><span class="o" style="font-weight: 600;">..</span><span class="p">),</span> <span class="nf" style="color: #900; font-weight: 600;">localRegType</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="43" 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>
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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">@@ -43,6 +43,8 @@ import Unique</td>
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<pre style="margin: 0;"> <span id="LC43" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Data.Set</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Set</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC44" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="k" style="font-weight: 600;">qualified</span> <span class="nn" style="color: #555;">Data.Set</span> <span class="k" style="font-weight: 600;">as</span> <span class="n" style="color: #333;">Set</span></span>
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<pre style="margin: 0;"> <span id="LC45" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC46" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">BasicTypes</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Alignment</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">mkAlignment</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">alignmentOf</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC47" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC48" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-----------------------------------------------------------------------------</span></span>
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<pre style="margin: 0;"> <span id="LC49" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- CmmExpr</span></span>
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<pre style="margin: 0;"> <span id="LC50" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- An expression. Expressions have no side effects.</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="239" 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="241" 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">@@ -239,6 +241,13 @@ cmmLabelType dflags lbl</td>
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<pre style="margin: 0;"> <span id="LC241" class="line" lang="haskell"><span class="n" style="color: #333;">cmmExprWidth</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">DynFlags</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Width</span></span>
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<pre style="margin: 0;"> <span id="LC242" class="line" lang="haskell"><span class="n" style="color: #333;">cmmExprWidth</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">e</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">typeWidth</span> <span class="p">(</span><span class="n" style="color: #333;">cmmExprType</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">e</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC243" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC244" class="line" lang="haskell"><span class="cd">-- | Returns an alignment in bytes of a CmmExpr when it's a statically</span></span>
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<pre style="margin: 0;">+<span id="LC245" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- known integer constant, otherwise returns an alignment of 1 byte.</span></span>
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<pre style="margin: 0;">+<span id="LC246" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- The caller is responsible for using with a sensible CmmExpr</span></span>
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<pre style="margin: 0;">+<span id="LC247" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- argument.</span></span>
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<pre style="margin: 0;">+<span id="LC248" class="line" lang="haskell"><span class="n" style="color: #333;">cmmExprAlignment</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Alignment</span></span>
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<pre style="margin: 0;">+<span id="LC249" class="line" lang="haskell"><span class="n" style="color: #333;">cmmExprAlignment</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CmmLit</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CmmInt</span> <span class="n" style="color: #333;">intOff</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">))</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">alignmentOf</span> <span class="p">(</span><span class="n" style="color: #333;">fromInteger</span> <span class="n" style="color: #333;">intOff</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC250" class="line" lang="haskell"><span class="n" style="color: #333;">cmmExprAlignment</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkAlignment</span> <span class="mi" style="color: #099;">1</span></span>
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<pre style="margin: 0;"> <span id="LC251" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--------</span></span>
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<pre style="margin: 0;"> <span id="LC252" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--- Negation for conditional branches</span></span>
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<pre style="margin: 0;"> <span id="LC253" class="line" lang="haskell"></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/compare/6febc444c0abea6c033174aa0e813c950b9b2877...6094d43f36bdab5ff3f246afca9a6018545fdd73#731b07c16b2f4bb31dd7defa4ceef54e74473cc7"><strong>compiler/codeGen/StgCmmPrim.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">@@ -2035,8 +2035,8 @@ doCopyByteArrayOp = emitCopyByteArray copy</td>
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<pre style="margin: 0;"> <span id="LC2035" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;"> <span id="LC2036" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Copy data (we assume the arrays aren't overlapping since</span></span>
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<pre style="margin: 0;"> <span id="LC2037" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- they're of different types)</span></span>
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<pre style="margin: 0;">-<span id="LC2038" class="line" lang="haskell"> <span class="n" style="color: #333;">copy</span> <span class="n" style="color: #333;">_src</span> <span class="n" style="color: #333;">_dst</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="n" style="color: #333;">bytes</span> <span class="o" style="font-weight: 600;">=</span></span>
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<pre style="margin: 0;">-<span id="LC2039" class="line" lang="haskell"> <span class="n" style="color: #333;">emitMemcpyCall</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="n" style="color: #333;">bytes</span> <span class="mi" style="color: #099;"><span class="idiff left right">1</span></span></span>
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<pre style="margin: 0;">+<span id="LC2038" class="line" lang="haskell"> <span class="n" style="color: #333;">copy</span> <span class="n" style="color: #333;">_src</span> <span class="n" style="color: #333;">_dst</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="n" style="color: #333;">bytes</span> <span class="n" style="color: #333;"><span class="idiff left">align</span></span><span class="idiff right"> </span><span class="o" style="font-weight: 600;">=</span></span>
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<pre style="margin: 0;">+<span id="LC2039" class="line" lang="haskell"> <span class="n" style="color: #333;">emitMemcpyCall</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="n" style="color: #333;">bytes</span> <span class="n" style="color: #333;"><span class="idiff left right">align</span></span></span>
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<pre style="margin: 0;"> <span id="LC2040" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2041" class="line" lang="haskell"><span class="cd">-- | Takes a source 'MutableByteArray#', an offset in the source</span></span>
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<pre style="margin: 0;"> <span id="LC2042" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- array, a destination 'MutableByteArray#', an offset into the</span></span>
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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">@@ -2050,22 +2050,26 @@ doCopyMutableByteArrayOp = emitCopyByteArray copy</td>
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<pre style="margin: 0;"> <span id="LC2050" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- The only time the memory might overlap is when the two arrays</span></span>
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<pre style="margin: 0;"> <span id="LC2051" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- we were provided are the same array!</span></span>
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<pre style="margin: 0;"> <span id="LC2052" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- TODO: Optimize branch for common case of no aliasing.</span></span>
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<pre style="margin: 0;">-<span id="LC2053" class="line" lang="haskell"> <span class="n" style="color: #333;">copy</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">dst</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="n" style="color: #333;">bytes</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="LC2053" class="line" lang="haskell"> <span class="n" style="color: #333;">copy</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">dst</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="n" style="color: #333;">bytes</span> <span class="n" style="color: #333;"><span class="idiff left">align</span></span><span class="idiff right"> </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="LC2054" class="line" lang="haskell"> <span class="n" style="color: #333;">dflags</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getDynFlags</span></span>
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<pre style="margin: 0;"> <span id="LC2055" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">moveCall</span><span class="p">,</span> <span class="n" style="color: #333;">cpyCall</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">forkAltPair</span></span>
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<pre style="margin: 0;">-<span id="LC2056" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">getCode</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">emitMemmoveCall</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="n" style="color: #333;">bytes</span> <span class="mi" style="color: #099;"><span class="idiff left right">1</span></span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC2057" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">getCode</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">emitMemcpyCall</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="n" style="color: #333;">bytes</span> <span class="mi" style="color: #099;"><span class="idiff left right">1</span></span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC2056" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">getCode</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">emitMemmoveCall</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="n" style="color: #333;">bytes</span> <span class="n" style="color: #333;"><span class="idiff left right">align</span></span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC2057" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">getCode</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">emitMemcpyCall</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="n" style="color: #333;">bytes</span> <span class="n" style="color: #333;"><span class="idiff left right">align</span></span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC2058" class="line" lang="haskell"> <span class="n" style="color: #333;">emit</span> <span class="o" style="font-weight: 600;">=<<</span> <span class="n" style="color: #333;">mkCmmIfThenElse</span> <span class="p">(</span><span class="n" style="color: #333;">cmmEqWord</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">dst</span><span class="p">)</span> <span class="n" style="color: #333;">moveCall</span> <span class="n" style="color: #333;">cpyCall</span></span>
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<pre style="margin: 0;"> <span id="LC2059" class="line" lang="haskell"></span>
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2060
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<pre style="margin: 0;"> <span id="LC2060" class="line" lang="haskell"><span class="n" style="color: #333;">emitCopyByteArray</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span></span>
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2061
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<pre style="margin: 0;">-<span id="LC2061" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">FCode</span> <span class="nb" style="color: #0086b3;">()</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC2061" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">Alignment</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff right"> </span><span class="kt" style="color: #458; font-weight: 600;">FCode</span> <span class="nb" style="color: #0086b3;">()</span><span class="p">)</span></span>
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2062
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<pre style="margin: 0;"> <span id="LC2062" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span></span>
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2063
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2063
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<pre style="margin: 0;"> <span id="LC2063" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">FCode</span> <span class="nb" style="color: #0086b3;">()</span></span>
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2064
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2064
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<pre style="margin: 0;"> <span id="LC2064" class="line" lang="haskell"><span class="n" style="color: #333;">emitCopyByteArray</span> <span class="n" style="color: #333;">copy</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">src_off</span> <span class="n" style="color: #333;">dst</span> <span class="n" style="color: #333;">dst_off</span> <span class="n" style="color: #333;">n</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span></span>
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2065
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2065
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<pre style="margin: 0;"> <span id="LC2065" class="line" lang="haskell"> <span class="n" style="color: #333;">dflags</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getDynFlags</span></span>
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2066
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<pre style="margin: 0;">+<span id="LC2066" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">byteArrayAlignment</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">wordAlignment</span> <span class="n" style="color: #333;">dflags</span></span>
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2067
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<pre style="margin: 0;">+<span id="LC2067" class="line" lang="haskell"> <span class="n" style="color: #333;">srcOffAlignment</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">cmmExprAlignment</span> <span class="n" style="color: #333;">src_off</span></span>
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2068
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<pre style="margin: 0;">+<span id="LC2068" class="line" lang="haskell"> <span class="n" style="color: #333;">dstOffAlignment</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">cmmExprAlignment</span> <span class="n" style="color: #333;">dst_off</span></span>
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2069
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<pre style="margin: 0;">+<span id="LC2069" class="line" lang="haskell"> <span class="n" style="color: #333;">align</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">minimum</span> <span class="p">[</span><span class="n" style="color: #333;">byteArrayAlignment</span><span class="p">,</span> <span class="n" style="color: #333;">srcOffAlignment</span><span class="p">,</span> <span class="n" style="color: #333;">dstOffAlignment</span><span class="p">]</span></span>
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2066
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2070
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<pre style="margin: 0;"> <span id="LC2070" class="line" lang="haskell"> <span class="n" style="color: #333;">dst_p</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">assignTempE</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">cmmOffsetExpr</span> <span class="n" style="color: #333;">dflags</span> <span class="p">(</span><span class="n" style="color: #333;">cmmOffsetB</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">dst</span> <span class="p">(</span><span class="n" style="color: #333;">arrWordsHdrSize</span> <span class="n" style="color: #333;">dflags</span><span class="p">))</span> <span class="n" style="color: #333;">dst_off</span></span>
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2067
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2071
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<pre style="margin: 0;"> <span id="LC2071" class="line" lang="haskell"> <span class="n" style="color: #333;">src_p</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">assignTempE</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">cmmOffsetExpr</span> <span class="n" style="color: #333;">dflags</span> <span class="p">(</span><span class="n" style="color: #333;">cmmOffsetB</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">src</span> <span class="p">(</span><span class="n" style="color: #333;">arrWordsHdrSize</span> <span class="n" style="color: #333;">dflags</span><span class="p">))</span> <span class="n" style="color: #333;">src_off</span></span>
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<pre style="margin: 0;">-<span id="LC2068" class="line" lang="haskell"> <span class="n" style="color: #333;">copy</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">dst</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="n" style="color: #333;">n</span></span>
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<pre style="margin: 0;">+<span id="LC2072" class="line" lang="haskell"> <span class="n" style="color: #333;">copy</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">dst</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="n" style="color: #333;">n</span><span class="idiff left"> </span><span class="n" style="color: #333;"><span class="idiff right">align</span></span></span>
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2069
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2073
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<pre style="margin: 0;"> <span id="LC2073" class="line" lang="haskell"></span>
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2070
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2074
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<pre style="margin: 0;"> <span id="LC2074" class="line" lang="haskell"><span class="cd">-- | Takes a source 'ByteArray#', an offset in the source array, a</span></span>
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2071
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2075
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<pre style="margin: 0;"> <span id="LC2075" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- destination 'Addr#', and the number of bytes to copy. Copies the given</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="2075" 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>
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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">@@ -2075,7 +2079,7 @@ doCopyByteArrayToAddrOp src src_off dst_p bytes = do</td>
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2079
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<pre style="margin: 0;"> <span id="LC2079" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Use memcpy (we are allowed to assume the arrays aren't overlapping)</span></span>
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2080
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<pre style="margin: 0;"> <span id="LC2080" class="line" lang="haskell"> <span class="n" style="color: #333;">dflags</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getDynFlags</span></span>
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2077
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2081
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<pre style="margin: 0;"> <span id="LC2081" class="line" lang="haskell"> <span class="n" style="color: #333;">src_p</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">assignTempE</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">cmmOffsetExpr</span> <span class="n" style="color: #333;">dflags</span> <span class="p">(</span><span class="n" style="color: #333;">cmmOffsetB</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">src</span> <span class="p">(</span><span class="n" style="color: #333;">arrWordsHdrSize</span> <span class="n" style="color: #333;">dflags</span><span class="p">))</span> <span class="n" style="color: #333;">src_off</span></span>
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2078
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<pre style="margin: 0;">-<span id="LC2078" class="line" lang="haskell"> <span class="n" style="color: #333;">emitMemcpyCall</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="n" style="color: #333;">bytes</span> <span class="mi" style="color: #099;"><span class="idiff left right">1</span></span></span>
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<pre style="margin: 0;">+<span id="LC2082" class="line" lang="haskell"> <span class="n" style="color: #333;">emitMemcpyCall</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="n" style="color: #333;">bytes</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">mkAlignment</span></span><span class="idiff"> </span><span class="mi" style="color: #099;"><span class="idiff">1</span></span><span class="p"><span class="idiff right">)</span></span></span>
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2083
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<pre style="margin: 0;"> <span id="LC2083" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2084" class="line" lang="haskell"><span class="cd">-- | Takes a source 'MutableByteArray#', an offset in the source array, a</span></span>
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<pre style="margin: 0;"> <span id="LC2085" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- destination 'Addr#', and the number of bytes to copy. Copies the given</span></span>
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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">@@ -2092,7 +2096,7 @@ doCopyAddrToByteArrayOp src_p dst dst_off bytes = do</td>
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<pre style="margin: 0;"> <span id="LC2096" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Use memcpy (we are allowed to assume the arrays aren't overlapping)</span></span>
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<pre style="margin: 0;"> <span id="LC2097" class="line" lang="haskell"> <span class="n" style="color: #333;">dflags</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getDynFlags</span></span>
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2098
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<pre style="margin: 0;"> <span id="LC2098" class="line" lang="haskell"> <span class="n" style="color: #333;">dst_p</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">assignTempE</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">cmmOffsetExpr</span> <span class="n" style="color: #333;">dflags</span> <span class="p">(</span><span class="n" style="color: #333;">cmmOffsetB</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">dst</span> <span class="p">(</span><span class="n" style="color: #333;">arrWordsHdrSize</span> <span class="n" style="color: #333;">dflags</span><span class="p">))</span> <span class="n" style="color: #333;">dst_off</span></span>
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<pre style="margin: 0;">-<span id="LC2095" class="line" lang="haskell"> <span class="n" style="color: #333;">emitMemcpyCall</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="n" style="color: #333;">bytes</span> <span class="mi" style="color: #099;"><span class="idiff left right">1</span></span></span>
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<pre style="margin: 0;">+<span id="LC2099" class="line" lang="haskell"> <span class="n" style="color: #333;">emitMemcpyCall</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="n" style="color: #333;">bytes</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">mkAlignment</span></span><span class="idiff"> </span><span class="mi" style="color: #099;"><span class="idiff">1</span></span><span class="p"><span class="idiff right">)</span></span></span>
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<pre style="margin: 0;"> <span id="LC2100" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2101" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2102" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- ----------------------------------------------------------------------------</span></span>
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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">@@ -2107,9 +2111,7 @@ doSetByteArrayOp ba off len c = do</td>
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<pre style="margin: 0;"> <span id="LC2111" class="line" lang="haskell"> <span class="n" style="color: #333;">dflags</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getDynFlags</span></span>
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2112
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<pre style="margin: 0;"> <span id="LC2112" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2113" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">byteArrayAlignment</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">wordAlignment</span> <span class="n" style="color: #333;">dflags</span> <span class="c1" style="color: #998; font-style: italic;">-- known since BA is allocated on heap</span></span>
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<pre style="margin: 0;">-<span id="LC2110" class="line" lang="haskell"> <span class="n" style="color: #333;">offsetAlignment</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">off</span> <span class="kr" style="font-weight: 600;">of</span></span>
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<pre style="margin: 0;">-<span id="LC2111" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">CmmLit</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CmmInt</span> <span class="n" style="color: #333;">intOff</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">alignmentOf</span> <span class="p">(</span><span class="n" style="color: #333;">fromInteger</span> <span class="n" style="color: #333;">intOff</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC2112" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">mkAlignment</span> <span class="mi" style="color: #099;">1</span></span>
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<pre style="margin: 0;">+<span id="LC2114" class="line" lang="haskell"> <span class="n" style="color: #333;">offsetAlignment</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">cmmExprAlignment</span> <span class="n" style="color: #333;">off</span></span>
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<pre style="margin: 0;"> <span id="LC2115" class="line" lang="haskell"> <span class="n" style="color: #333;">align</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">min</span> <span class="n" style="color: #333;">byteArrayAlignment</span> <span class="n" style="color: #333;">offsetAlignment</span></span>
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2114
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2116
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<pre style="margin: 0;"> <span id="LC2116" class="line" lang="haskell"></span>
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2115
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2117
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<pre style="margin: 0;"> <span id="LC2117" class="line" lang="haskell"> <span class="n" style="color: #333;">p</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">assignTempE</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">cmmOffsetExpr</span> <span class="n" style="color: #333;">dflags</span> <span class="p">(</span><span class="n" style="color: #333;">cmmOffsetB</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">ba</span> <span class="p">(</span><span class="n" style="color: #333;">arrWordsHdrSize</span> <span class="n" style="color: #333;">dflags</span><span class="p">))</span> <span class="n" style="color: #333;">off</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="2180" 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="2182" 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">@@ -2180,7 +2182,7 @@ doCopyArrayOp = emitCopyArray copy</td>
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2180
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2182
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<pre style="margin: 0;"> <span id="LC2182" class="line" lang="haskell"> <span class="n" style="color: #333;">copy</span> <span class="n" style="color: #333;">_src</span> <span class="n" style="color: #333;">_dst</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="n" style="color: #333;">bytes</span> <span class="o" style="font-weight: 600;">=</span></span>
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2181
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2183
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<pre style="margin: 0;"> <span id="LC2183" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="n" style="color: #333;">dflags</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getDynFlags</span></span>
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2182
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2184
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<pre style="margin: 0;"> <span id="LC2184" class="line" lang="haskell"> <span class="n" style="color: #333;">emitMemcpyCall</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="p">(</span><span class="n" style="color: #333;">mkIntExpr</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">bytes</span><span class="p">)</span></span>
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2183
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<pre style="margin: 0;">-<span id="LC2183" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">w<span class="idiff left right">ORD_SIZE</span></span> <span class="n" style="color: #333;">dflags</span><span class="p">)</span></span>
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2185
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<pre style="margin: 0;">+<span id="LC2185" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">w<span class="idiff left right">ordAlignment</span></span> <span class="n" style="color: #333;">dflags</span><span class="p">)</span></span>
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2184
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2186
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<pre style="margin: 0;"> <span id="LC2186" class="line" lang="haskell"></span>
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2185
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2187
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<pre style="margin: 0;"> <span id="LC2187" class="line" lang="haskell"></span>
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2188
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<pre style="margin: 0;"> <span id="LC2188" class="line" lang="haskell"><span class="cd">-- | Takes a source 'MutableArray#', an offset in the source array, a</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="2198" 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>
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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">@@ -2198,9 +2200,9 @@ doCopyMutableArrayOp = emitCopyArray copy</td>
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2198
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2200
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<pre style="margin: 0;"> <span id="LC2200" class="line" lang="haskell"> <span class="n" style="color: #333;">dflags</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getDynFlags</span></span>
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2199
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2201
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<pre style="margin: 0;"> <span id="LC2201" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">moveCall</span><span class="p">,</span> <span class="n" style="color: #333;">cpyCall</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">forkAltPair</span></span>
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2200
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2202
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<pre style="margin: 0;"> <span id="LC2202" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">getCode</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">emitMemmoveCall</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="p">(</span><span class="n" style="color: #333;">mkIntExpr</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">bytes</span><span class="p">)</span></span>
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2201
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<pre style="margin: 0;">-<span id="LC2201" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">w<span class="idiff left right">ORD_SIZE</span></span> <span class="n" style="color: #333;">dflags</span><span class="p">))</span></span>
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2203
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<pre style="margin: 0;">+<span id="LC2203" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">w<span class="idiff left right">ordAlignment</span></span> <span class="n" style="color: #333;">dflags</span><span class="p">))</span></span>
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2202
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2204
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<pre style="margin: 0;"> <span id="LC2204" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">getCode</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">emitMemcpyCall</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="p">(</span><span class="n" style="color: #333;">mkIntExpr</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">bytes</span><span class="p">)</span></span>
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2203
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<pre style="margin: 0;">-<span id="LC2203" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">w<span class="idiff left right">ORD_SIZE</span></span> <span class="n" style="color: #333;">dflags</span><span class="p">))</span></span>
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2205
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<pre style="margin: 0;">+<span id="LC2205" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">w<span class="idiff left right">ordAlignment</span></span> <span class="n" style="color: #333;">dflags</span><span class="p">))</span></span>
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2204
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2206
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<pre style="margin: 0;"> <span id="LC2206" class="line" lang="haskell"> <span class="n" style="color: #333;">emit</span> <span class="o" style="font-weight: 600;">=<<</span> <span class="n" style="color: #333;">mkCmmIfThenElse</span> <span class="p">(</span><span class="n" style="color: #333;">cmmEqWord</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">dst</span><span class="p">)</span> <span class="n" style="color: #333;">moveCall</span> <span class="n" style="color: #333;">cpyCall</span></span>
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2205
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2207
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<pre style="margin: 0;"> <span id="LC2207" class="line" lang="haskell"></span>
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2208
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<pre style="margin: 0;"> <span id="LC2208" class="line" lang="haskell"><span class="n" style="color: #333;">emitCopyArray</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">ByteOff</span></span>
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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">@@ -2247,7 +2249,7 @@ doCopySmallArrayOp = emitCopySmallArray copy</td>
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2247
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2249
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<pre style="margin: 0;"> <span id="LC2249" class="line" lang="haskell"> <span class="n" style="color: #333;">copy</span> <span class="n" style="color: #333;">_src</span> <span class="n" style="color: #333;">_dst</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="n" style="color: #333;">bytes</span> <span class="o" style="font-weight: 600;">=</span></span>
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2248
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2250
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<pre style="margin: 0;"> <span id="LC2250" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="n" style="color: #333;">dflags</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getDynFlags</span></span>
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2249
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2251
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<pre style="margin: 0;"> <span id="LC2251" class="line" lang="haskell"> <span class="n" style="color: #333;">emitMemcpyCall</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="p">(</span><span class="n" style="color: #333;">mkIntExpr</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">bytes</span><span class="p">)</span></span>
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2250
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<pre style="margin: 0;">-<span id="LC2250" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">w<span class="idiff left right">ORD_SIZE</span></span> <span class="n" style="color: #333;">dflags</span><span class="p">)</span></span>
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2252
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<pre style="margin: 0;">+<span id="LC2252" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">w<span class="idiff left right">ordAlignment</span></span> <span class="n" style="color: #333;">dflags</span><span class="p">)</span></span>
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2253
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<pre style="margin: 0;"> <span id="LC2253" class="line" lang="haskell"></span>
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2254
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<pre style="margin: 0;"> <span id="LC2254" class="line" lang="haskell"></span>
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2255
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<pre style="margin: 0;"> <span id="LC2255" class="line" lang="haskell"><span class="n" style="color: #333;">doCopySmallMutableArrayOp</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">WordOff</span></span>
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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">@@ -2261,9 +2263,9 @@ doCopySmallMutableArrayOp = emitCopySmallArray copy</td>
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2261
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2263
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<pre style="margin: 0;"> <span id="LC2263" class="line" lang="haskell"> <span class="n" style="color: #333;">dflags</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getDynFlags</span></span>
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2262
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2264
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<pre style="margin: 0;"> <span id="LC2264" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">moveCall</span><span class="p">,</span> <span class="n" style="color: #333;">cpyCall</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">forkAltPair</span></span>
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2263
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2265
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<pre style="margin: 0;"> <span id="LC2265" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">getCode</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">emitMemmoveCall</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="p">(</span><span class="n" style="color: #333;">mkIntExpr</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">bytes</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC2264" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">w<span class="idiff left right">ORD_SIZE</span></span> <span class="n" style="color: #333;">dflags</span><span class="p">))</span></span>
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<pre style="margin: 0;">+<span id="LC2266" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">w<span class="idiff left right">ordAlignment</span></span> <span class="n" style="color: #333;">dflags</span><span class="p">))</span></span>
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2267
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<pre style="margin: 0;"> <span id="LC2267" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">getCode</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">emitMemcpyCall</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="p">(</span><span class="n" style="color: #333;">mkIntExpr</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">bytes</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC2266" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">w<span class="idiff left right">ORD_SIZE</span></span> <span class="n" style="color: #333;">dflags</span><span class="p">))</span></span>
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<pre style="margin: 0;">+<span id="LC2268" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">w<span class="idiff left right">ordAlignment</span></span> <span class="n" style="color: #333;">dflags</span><span class="p">))</span></span>
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<pre style="margin: 0;"> <span id="LC2269" class="line" lang="haskell"> <span class="n" style="color: #333;">emit</span> <span class="o" style="font-weight: 600;">=<<</span> <span class="n" style="color: #333;">mkCmmIfThenElse</span> <span class="p">(</span><span class="n" style="color: #333;">cmmEqWord</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">dst</span><span class="p">)</span> <span class="n" style="color: #333;">moveCall</span> <span class="n" style="color: #333;">cpyCall</span></span>
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<pre style="margin: 0;"> <span id="LC2270" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2271" class="line" lang="haskell"><span class="n" style="color: #333;">emitCopySmallArray</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">ByteOff</span></span>
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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">@@ -2328,7 +2330,7 @@ emitCloneArray info_p res_r src src_off n = do</td>
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2328
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2330
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<pre style="margin: 0;"> <span id="LC2330" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">mkIntExpr</span> <span class="n" style="color: #333;">dflags</span> <span class="p">(</span><span class="n" style="color: #333;">arrPtrsHdrSizeW</span> <span class="n" style="color: #333;">dflags</span><span class="p">))</span> <span class="n" style="color: #333;">src_off</span><span class="p">)</span></span>
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2329
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2331
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<pre style="margin: 0;"> <span id="LC2331" class="line" lang="haskell"></span>
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2332
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<pre style="margin: 0;"> <span id="LC2332" class="line" lang="haskell"> <span class="n" style="color: #333;">emitMemcpyCall</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="p">(</span><span class="n" style="color: #333;">mkIntExpr</span> <span class="n" style="color: #333;">dflags</span> <span class="p">(</span><span class="n" style="color: #333;">wordsToBytes</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">n</span><span class="p">))</span></span>
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<pre style="margin: 0;">-<span id="LC2331" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">w<span class="idiff left right">ORD_SIZE</span></span> <span class="n" style="color: #333;">dflags</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC2333" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">w<span class="idiff left right">ordAlignment</span></span> <span class="n" style="color: #333;">dflags</span><span class="p">)</span></span>
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2334
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<pre style="margin: 0;"> <span id="LC2334" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2335" class="line" lang="haskell"> <span class="n" style="color: #333;">emit</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">mkAssign</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CmmLocal</span> <span class="n" style="color: #333;">res_r</span><span class="p">)</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CmmReg</span> <span class="n" style="color: #333;">arr</span><span class="p">)</span></span>
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2336
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<pre style="margin: 0;"> <span id="LC2336" class="line" lang="haskell"></span>
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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">@@ -2365,7 +2367,7 @@ emitCloneSmallArray info_p res_r src src_off n = do</td>
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2365
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<pre style="margin: 0;"> <span id="LC2367" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">mkIntExpr</span> <span class="n" style="color: #333;">dflags</span> <span class="p">(</span><span class="n" style="color: #333;">smallArrPtrsHdrSizeW</span> <span class="n" style="color: #333;">dflags</span><span class="p">))</span> <span class="n" style="color: #333;">src_off</span><span class="p">)</span></span>
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2366
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2368
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<pre style="margin: 0;"> <span id="LC2368" class="line" lang="haskell"></span>
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2369
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<pre style="margin: 0;"> <span id="LC2369" class="line" lang="haskell"> <span class="n" style="color: #333;">emitMemcpyCall</span> <span class="n" style="color: #333;">dst_p</span> <span class="n" style="color: #333;">src_p</span> <span class="p">(</span><span class="n" style="color: #333;">mkIntExpr</span> <span class="n" style="color: #333;">dflags</span> <span class="p">(</span><span class="n" style="color: #333;">wordsToBytes</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">n</span><span class="p">))</span></span>
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<pre style="margin: 0;">-<span id="LC2368" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">w<span class="idiff left right">ORD_SIZE</span></span> <span class="n" style="color: #333;">dflags</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC2370" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">w<span class="idiff left right">ordAlignment</span></span> <span class="n" style="color: #333;">dflags</span><span class="p">)</span></span>
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2371
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<pre style="margin: 0;"> <span id="LC2371" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2372" class="line" lang="haskell"> <span class="n" style="color: #333;">emit</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">mkAssign</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CmmLocal</span> <span class="n" style="color: #333;">res_r</span><span class="p">)</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CmmReg</span> <span class="n" style="color: #333;">arr</span><span class="p">)</span></span>
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2373
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<pre style="margin: 0;"> <span id="LC2373" class="line" lang="haskell"></span>
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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">@@ -2493,19 +2495,19 @@ doCasByteArray res mba idx idx_ty old new = do</td>
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<pre style="margin: 0;"> <span id="LC2495" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Helpers for emitting function calls</span></span>
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<pre style="margin: 0;"> <span id="LC2496" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2497" class="line" lang="haskell"><span class="cd">-- | Emit a call to @memcpy@.</span></span>
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<pre style="margin: 0;">-<span id="LC2496" class="line" lang="haskell"><span class="n" style="color: #333;">emitMemcpyCall</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">I</span>nt</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">FCode</span> <span class="nb" style="color: #0086b3;">()</span></span>
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<pre style="margin: 0;">+<span id="LC2498" class="line" lang="haskell"><span class="n" style="color: #333;">emitMemcpyCall</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">Alignme</span>nt</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">FCode</span> <span class="nb" style="color: #0086b3;">()</span></span>
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<pre style="margin: 0;"> <span id="LC2499" class="line" lang="haskell"><span class="n" style="color: #333;">emitMemcpyCall</span> <span class="n" style="color: #333;">dst</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">n</span> <span class="n" style="color: #333;">align</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="LC2500" class="line" lang="haskell"> <span class="n" style="color: #333;">emitPrimCall</span></span>
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<pre style="margin: 0;"> <span id="LC2501" class="line" lang="haskell"> <span class="p">[</span> <span class="cm" style="color: #998; font-style: italic;">{-no results-}</span> <span class="p">]</span></span>
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<pre style="margin: 0;">-<span id="LC2500" class="line" lang="haskell"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">MO_Memcpy</span> <span class="n" style="color: #333;"><span class="idiff left right">align</span></span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC2502" class="line" lang="haskell"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">MO_Memcpy</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">alignmentBytes</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">align</span></span><span class="p"><span class="idiff right">)</span>)</span></span>
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<pre style="margin: 0;"> <span id="LC2503" class="line" lang="haskell"> <span class="p">[</span> <span class="n" style="color: #333;">dst</span><span class="p">,</span> <span class="n" style="color: #333;">src</span><span class="p">,</span> <span class="n" style="color: #333;">n</span> <span class="p">]</span></span>
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<pre style="margin: 0;"> <span id="LC2504" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2505" class="line" lang="haskell"><span class="cd">-- | Emit a call to @memmove@.</span></span>
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<pre style="margin: 0;">-<span id="LC2504" class="line" lang="haskell"><span class="n" style="color: #333;">emitMemmoveCall</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">I</span>nt</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">FCode</span> <span class="nb" style="color: #0086b3;">()</span></span>
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<pre style="margin: 0;">+<span id="LC2506" class="line" lang="haskell"><span class="n" style="color: #333;">emitMemmoveCall</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CmmExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">Alignme</span>nt</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">FCode</span> <span class="nb" style="color: #0086b3;">()</span></span>
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<pre style="margin: 0;"> <span id="LC2507" class="line" lang="haskell"><span class="n" style="color: #333;">emitMemmoveCall</span> <span class="n" style="color: #333;">dst</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">n</span> <span class="n" style="color: #333;">align</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="LC2508" class="line" lang="haskell"> <span class="n" style="color: #333;">emitPrimCall</span></span>
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<pre style="margin: 0;"> <span id="LC2509" class="line" lang="haskell"> <span class="p">[</span> <span class="cm" style="color: #998; font-style: italic;">{- no results -}</span> <span class="p">]</span></span>
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<pre style="margin: 0;">-<span id="LC2508" class="line" lang="haskell"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">MO_Memmove</span> <span class="n" style="color: #333;"><span class="idiff left right">align</span></span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC2510" class="line" lang="haskell"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">MO_Memmove</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">alignmentBytes</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">align</span></span><span class="p"><span class="idiff right">)</span>)</span></span>
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<pre style="margin: 0;"> <span id="LC2511" class="line" lang="haskell"> <span class="p">[</span> <span class="n" style="color: #333;">dst</span><span class="p">,</span> <span class="n" style="color: #333;">src</span><span class="p">,</span> <span class="n" style="color: #333;">n</span> <span class="p">]</span></span>
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<pre style="margin: 0;"> <span id="LC2512" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2513" class="line" lang="haskell"><span class="cd">-- | Emit a call to @memset@. The second argument must fit inside an</span></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/compare/6febc444c0abea6c033174aa0e813c950b9b2877...6094d43f36bdab5ff3f246afca9a6018545fdd73#e08a7f13d9b4dd9216080725eb81bf254597216d"><strong>compiler/nativeGen/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">@@ -1767,12 +1767,11 @@ genCCall</td>
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<pre style="margin: 0;"> <span id="LC1767" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC1768" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -</span></span>
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<pre style="margin: 0;"> <span id="LC1769" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC1770" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Unroll memcpy calls if the source and destination pointers are at</span></span>
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<pre style="margin: 0;">-<span id="LC1771" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- least DWORD aligned and the number of bytes to copy isn't too</span></span>
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<pre style="margin: 0;">+<span id="LC1770" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Unroll memcpy calls if the number of bytes to copy isn't too</span></span>
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<pre style="margin: 0;"> <span id="LC1771" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- large. Otherwise, call C's memcpy.</span></span>
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<pre style="margin: 0;">-<span id="LC1773" 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;"><span class="idiff left right">is32Bit</span></span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PrimTarget</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">MO_Memcpy</span> <span class="n" style="color: #333;">align</span><span class="p">))</span> <span class="kr" style="font-weight: 600;">_</span></span>
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<pre style="margin: 0;">+<span id="LC1772" class="line" lang="haskell"><span class="n" style="color: #333;">genCCall</span> <span class="n" style="color: #333;">dflags</span> <span class="kr" style="font-weight: 600;"><span class="idiff left right">_</span></span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PrimTarget</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">MO_Memcpy</span> <span class="n" style="color: #333;">align</span><span class="p">))</span> <span class="kr" style="font-weight: 600;">_</span></span>
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<pre style="margin: 0;"> <span id="LC1773" class="line" lang="haskell"> <span class="p">[</span><span class="n" style="color: #333;">dst</span><span class="p">,</span> <span class="n" style="color: #333;">src</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">CmmLit</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CmmInt</span> <span class="n" style="color: #333;">n</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">)]</span> <span class="kr" style="font-weight: 600;">_</span></span>
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<pre style="margin: 0;">-<span id="LC1775" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">fromInteger</span> <span class="n" style="color: #333;">insns</span> <span class="o" style="font-weight: 600;"><=</span> <span class="n" style="color: #333;">maxInlineMemcpyInsns</span> <span class="n" style="color: #333;">dflags</span> <span class="o" style="font-weight: 600;"><span class="idiff left">&&</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">align</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">.&.</span></span><span class="idiff"> </span><span class="mi" style="color: #099;"><span class="idiff">3</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">==</span></span><span class="idiff"> </span><span class="mi" style="color: #099;"><span class="idiff">0</span></span><span class="idiff right"> </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="LC1774" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">fromInteger</span> <span class="n" style="color: #333;">insns</span> <span class="o" style="font-weight: 600;"><=</span> <span class="n" style="color: #333;">maxInlineMemcpyInsns</span> <span class="n" style="color: #333;">dflags</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="LC1775" class="line" lang="haskell"> <span class="n" style="color: #333;">code_dst</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getAnyReg</span> <span class="n" style="color: #333;">dst</span></span>
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<pre style="margin: 0;"> <span id="LC1776" 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;">getNewRegNat</span> <span class="n" style="color: #333;">format</span></span>
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<pre style="margin: 0;"> <span id="LC1777" class="line" lang="haskell"> <span class="n" style="color: #333;">code_src</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getAnyReg</span> <span class="n" style="color: #333;">src</span></span>
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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">@@ -1785,7 +1784,9 @@ genCCall dflags is32Bit (PrimTarget (MO_Memcpy align)) _</td>
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<pre style="margin: 0;"> <span id="LC1784" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- instructions per move.</span></span>
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<pre style="margin: 0;"> <span id="LC1785" class="line" lang="haskell"> <span class="n" style="color: #333;">insns</span> <span class="o" style="font-weight: 600;">=</span> <span class="mi" style="color: #099;">2</span> <span class="o" style="font-weight: 600;">*</span> <span class="p">((</span><span class="n" style="color: #333;">n</span> <span class="o" style="font-weight: 600;">+</span> <span class="n" style="color: #333;">sizeBytes</span> <span class="o" style="font-weight: 600;">-</span> <span class="mi" style="color: #099;">1</span><span class="p">)</span> <span class="p">`</span><span class="n" style="color: #333;">div</span><span class="p">`</span> <span class="n" style="color: #333;">sizeBytes</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC1786" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC1788" class="line" lang="haskell"> <span class="n" style="color: #333;">format</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">align</span> <span class="o" style="font-weight: 600;">.&.</span> <span class="mi" style="color: #099;">4</span> <span class="o" style="font-weight: 600;">/=</span> <span class="mi" style="color: #099;">0</span> <span class="kr" style="font-weight: 600;">then</span> <span class="kt" style="color: #458; font-weight: 600;">II32</span> <span class="kr" style="font-weight: 600;">else</span> <span class="p">(</span><span class="n" style="color: #333;">archWordFormat</span> <span class="n" style="color: #333;">is32Bit</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC1787" class="line" lang="haskell"> <span class="n" style="color: #333;">maxAlignment</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">wordAlignment</span> <span class="n" style="color: #333;">dflags</span> <span class="c1" style="color: #998; font-style: italic;">-- only machine word wide MOVs are supported</span></span>
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<pre style="margin: 0;">+<span id="LC1788" class="line" lang="haskell"> <span class="n" style="color: #333;">effectiveAlignment</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">min</span> <span class="p">(</span><span class="n" style="color: #333;">alignmentOf</span> <span class="n" style="color: #333;">align</span><span class="p">)</span> <span class="n" style="color: #333;">maxAlignment</span></span>
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<pre style="margin: 0;">+<span id="LC1789" 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="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">widthFromBytes</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">alignmentBytes</span> <span class="n" style="color: #333;">effectiveAlignment</span></span>
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<pre style="margin: 0;"> <span id="LC1790" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC1791" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- The size of each move, in bytes.</span></span>
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<pre style="margin: 0;"> <span id="LC1792" class="line" lang="haskell"> <span class="n" style="color: #333;">sizeBytes</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Integer</span></span>
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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">@@ -61,10 +61,11 @@ Compiler</td>
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<pre style="margin: 0;"> <span id="LC61" class="line" lang="plaintext"> :ghc-flag:`-Wredundant-record-wildcards` which warn users when they have</span>
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<pre style="margin: 0;"> <span id="LC62" class="line" lang="plaintext"> redundant or unused uses of a record wildcard match.</span>
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<pre style="margin: 0;"> <span id="LC63" class="line" lang="plaintext"></span>
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<pre style="margin: 0;">-<span id="LC64" class="line" lang="plaintext">- Calls to `memset` are now unrolled more aggressively and the</span>
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<pre style="margin: 0;">-<span id="LC65" class="line" lang="plaintext"> produced code is more efficient on `x86_64` with added support for</span>
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<pre style="margin: 0;">-<span id="LC66" class="line" lang="plaintext"> 64-bit `MOV`s. In particular, `setByteArray#` calls that were not</span>
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<pre style="margin: 0;">-<span id="LC67" class="line" lang="plaintext"> optimized before, now will be. See :ghc-ticket:`16052`.</span>
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<pre style="margin: 0;">+<span id="LC64" class="line" lang="plaintext">- Calls to `memset` and `memcpy` are now unrolled more aggressively</span>
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<pre style="margin: 0;">+<span id="LC65" class="line" lang="plaintext"> and the produced code is more efficient on `x86_64` with added</span>
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<pre style="margin: 0;">+<span id="LC66" class="line" lang="plaintext"> support for 64-bit `MOV`s. In particular, `setByteArray#` and</span>
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<pre style="margin: 0;">+<span id="LC67" class="line" lang="plaintext"> `copyByteArray#` calls that were not optimized before, now will</span>
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<pre style="margin: 0;">+<span id="LC68" class="line" lang="plaintext"> be. See :ghc-ticket:`16052`.</span>
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<pre style="margin: 0;"> <span id="LC69" class="line" lang="plaintext"></span>
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<pre style="margin: 0;"> <span id="LC70" class="line" lang="plaintext">Runtime system</span>
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<pre style="margin: 0;"> <span id="LC71" class="line" lang="plaintext">~~~~~~~~~~~~~~</span>
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<a href="https://gitlab.haskell.org/ghc/ghc/compare/6febc444c0abea6c033174aa0e813c950b9b2877...6094d43f36bdab5ff3f246afca9a6018545fdd73#47a3b36acbc6601cd2d1c201a9406fcb8d08d34c"><strong>testsuite/tests/codeGen/should_gen_asm/all.T</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">@@ -8,3 +8,4 @@ test('memcpy-unroll', is_amd64_codegen, compile_cmp_asm, ['cmm', ''])</td>
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<pre style="margin: 0;"> <span id="LC8" class="line" lang="perl"><span class="nv" style="color: #008080;">test</span><span class="p">(</span><span class="s" style="color: #d14;">'memcpy-unroll-conprop'</span><span class="p">,</span> <span class="nv" style="color: #008080;">is_amd64_codegen</span><span class="p">,</span> <span class="nv" style="color: #008080;">compile_cmp_asm</span><span class="p">,</span> <span class="p">[</span><span class="s" style="color: #d14;">'cmm'</span><span class="p">,</span> <span class="s" style="color: #d14;">''</span><span class="p">])</span></span>
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<pre style="margin: 0;"> <span id="LC9" class="line" lang="perl"><span class="nv" style="color: #008080;">test</span><span class="p">(</span><span class="s" style="color: #d14;">'memset-unroll'</span><span class="p">,</span> <span class="nv" style="color: #008080;">is_amd64_codegen</span><span class="p">,</span> <span class="nv" style="color: #008080;">compile_cmp_asm</span><span class="p">,</span> <span class="p">[</span><span class="s" style="color: #d14;">'cmm'</span><span class="p">,</span> <span class="s" style="color: #d14;">''</span><span class="p">])</span></span>
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<pre style="margin: 0;"> <span id="LC10" class="line" lang="perl"><span class="nv" style="color: #008080;">test</span><span class="p">(</span><span class="s" style="color: #d14;">'bytearray-memset-unroll'</span><span class="p">,</span> <span class="nv" style="color: #008080;">is_amd64_codegen</span><span class="p">,</span> <span class="nv" style="color: #008080;">compile_grep_asm</span><span class="p">,</span> <span class="p">[</span><span class="s" style="color: #d14;">'hs'</span><span class="p">,</span> <span class="nv" style="color: #008080;">True</span><span class="p">,</span> <span class="s" style="color: #d14;">''</span><span class="p">])</span></span>
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<pre style="margin: 0;">+<span id="LC11" class="line" lang="perl"><span class="nv" style="color: #008080;">test</span><span class="p">(</span><span class="s" style="color: #d14;">'bytearray-memcpy-unroll'</span><span class="p">,</span> <span class="nv" style="color: #008080;">is_amd64_codegen</span><span class="p">,</span> <span class="nv" style="color: #008080;">compile_grep_asm</span><span class="p">,</span> <span class="p">[</span><span class="s" style="color: #d14;">'hs'</span><span class="p">,</span> <span class="nv" style="color: #008080;">True</span><span class="p">,</span> <span class="s" style="color: #d14;">''</span><span class="p">])</span></span></pre>
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<a href="https://gitlab.haskell.org/ghc/ghc/compare/6febc444c0abea6c033174aa0e813c950b9b2877...6094d43f36bdab5ff3f246afca9a6018545fdd73#24c15de15dabe42b1e17abf6a5398af7cf00f6bf"><strong>testsuite/tests/codeGen/should_gen_asm/bytearray-memcpy-unroll.asm</strong></a>
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<pre style="margin: 0;">+<span id="LC1" class="line" lang="nasm"><span class="n" style="color: #333;">movw</span> <span class="mi" style="color: #099;">0</span><span class="p">(</span><span class="err" style="color: #a61717; background-color: #e3d2d2;">%</span><span class="n" style="color: #333;">rax</span><span class="p">),</span><span class="err" style="color: #a61717; background-color: #e3d2d2;">%</span><span class="n" style="color: #333;">dx</span></span>
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<pre style="margin: 0;">+<span id="LC2" class="line" lang="nasm"><span class="n" style="color: #333;">movw</span> <span class="err" style="color: #a61717; background-color: #e3d2d2;">%</span><span class="n" style="color: #333;">dx</span><span class="p">,</span><span class="mi" style="color: #099;">0</span><span class="p">(</span><span class="err" style="color: #a61717; background-color: #e3d2d2;">%</span><span class="n" style="color: #333;">rcx</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC3" class="line" lang="nasm"><span class="n" style="color: #333;">movw</span> <span class="mi" style="color: #099;">2</span><span class="p">(</span><span class="err" style="color: #a61717; background-color: #e3d2d2;">%</span><span class="n" style="color: #333;">rax</span><span class="p">),</span><span class="err" style="color: #a61717; background-color: #e3d2d2;">%</span><span class="n" style="color: #333;">dx</span></span>
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<pre style="margin: 0;">+<span id="LC4" class="line" lang="nasm"><span class="n" style="color: #333;">movw</span> <span class="err" style="color: #a61717; background-color: #e3d2d2;">%</span><span class="n" style="color: #333;">dx</span><span class="p">,</span><span class="mi" style="color: #099;">2</span><span class="p">(</span><span class="err" style="color: #a61717; background-color: #e3d2d2;">%</span><span class="n" style="color: #333;">rcx</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC5" class="line" lang="nasm"><span class="n" style="color: #333;">movw</span> <span class="mi" style="color: #099;">4</span><span class="p">(</span><span class="err" style="color: #a61717; background-color: #e3d2d2;">%</span><span class="n" style="color: #333;">rax</span><span class="p">),</span><span class="err" style="color: #a61717; background-color: #e3d2d2;">%</span><span class="n" style="color: #333;">dx</span></span>
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<pre style="margin: 0;">+<span id="LC6" class="line" lang="nasm"><span class="n" style="color: #333;">movw</span> <span class="err" style="color: #a61717; background-color: #e3d2d2;">%</span><span class="n" style="color: #333;">dx</span><span class="p">,</span><span class="mi" style="color: #099;">4</span><span class="p">(</span><span class="err" style="color: #a61717; background-color: #e3d2d2;">%</span><span class="n" style="color: #333;">rcx</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC7" class="line" lang="nasm"><span class="n" style="color: #333;">movw</span> <span class="mi" style="color: #099;">6</span><span class="p">(</span><span class="err" style="color: #a61717; background-color: #e3d2d2;">%</span><span class="n" style="color: #333;">rax</span><span class="p">),</span><span class="err" style="color: #a61717; background-color: #e3d2d2;">%</span><span class="n" style="color: #333;">ax</span></span>
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<pre style="margin: 0;">+<span id="LC8" class="line" lang="nasm"><span class="n" style="color: #333;">movw</span> <span class="err" style="color: #a61717; background-color: #e3d2d2;">%</span><span class="n" style="color: #333;">ax</span><span class="p">,</span><span class="mi" style="color: #099;">6</span><span class="p">(</span><span class="err" style="color: #a61717; background-color: #e3d2d2;">%</span><span class="n" style="color: #333;">rcx</span><span class="p">)</span></span></pre>
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<a href="https://gitlab.haskell.org/ghc/ghc/compare/6febc444c0abea6c033174aa0e813c950b9b2877...6094d43f36bdab5ff3f246afca9a6018545fdd73#4bf39bffc99caef77bef91142757790e22ecfb6f"><strong>testsuite/tests/codeGen/should_gen_asm/bytearray-memcpy-unroll.hs</strong></a>
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<pre style="margin: 0;">+<span id="LC1" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# language MagicHash #-}</span></span>
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<pre style="margin: 0;">+<span id="LC2" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# language UnboxedTuples #-}</span></span>
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<pre style="margin: 0;">+<span id="LC3" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC4" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">module</span> <span class="nn" style="color: #555;">CopyArray</span></span>
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<pre style="margin: 0;">+<span id="LC5" class="line" lang="haskell"> <span class="p">(</span> <span class="nf" style="color: #900; font-weight: 600;">smallCopy</span></span>
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<pre style="margin: 0;">+<span id="LC6" class="line" lang="haskell"> <span class="p">)</span> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">+<span id="LC7" class="line" lang="haskell"></span>
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8
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<pre style="margin: 0;">+<span id="LC8" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.Exts</span></span>
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9
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<pre style="margin: 0;">+<span id="LC9" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.IO</span></span>
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<pre style="margin: 0;">+<span id="LC10" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC11" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">ByteArray</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">ByteArray</span> <span class="kt" style="color: #458; font-weight: 600;">ByteArray</span><span class="o" style="font-weight: 600;">#</span></span>
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12
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<pre style="margin: 0;">+<span id="LC12" class="line" lang="haskell"></span>
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13
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<pre style="margin: 0;">+<span id="LC13" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Does an 8 byte copy with sub-word (2 bytes) alignment</span></span>
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14
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<pre style="margin: 0;">+<span id="LC14" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Should be unrolled into 4 aligned stores (MOVWs)</span></span>
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15
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<pre style="margin: 0;">+<span id="LC15" class="line" lang="haskell"><span class="n" style="color: #333;">smallCopy</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">ByteArray</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">IO</span> <span class="kt" style="color: #458; font-weight: 600;">ByteArray</span></span>
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<pre style="margin: 0;">+<span id="LC16" class="line" lang="haskell"><span class="n" style="color: #333;">smallCopy</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ByteArray</span> <span class="n" style="color: #333;">ba</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">IO</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">s0</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">newByteArray</span><span class="o" style="font-weight: 600;">#</span> <span class="mi" style="color: #099;">8</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s0</span> <span class="kr" style="font-weight: 600;">of</span></span>
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17
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<pre style="margin: 0;">+<span id="LC17" class="line" lang="haskell"> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s1</span><span class="p">,</span> <span class="n" style="color: #333;">mut</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">copyByteArray</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">ba</span> <span class="mi" style="color: #099;">2</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">mut</span> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">#</span> <span class="mi" style="color: #099;">8</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s1</span> <span class="kr" style="font-weight: 600;">of</span></span>
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18
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<pre style="margin: 0;">+<span id="LC18" class="line" lang="haskell"> <span class="n" style="color: #333;">s2</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">unsafeFreezeByteArray</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">mut</span> <span class="n" style="color: #333;">s2</span> <span class="kr" style="font-weight: 600;">of</span></span>
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19
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<pre style="margin: 0;">+<span id="LC19" class="line" lang="haskell"> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s3</span><span class="p">,</span> <span class="n" style="color: #333;">frozen</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s3</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">ByteArray</span> <span class="n" style="color: #333;">frozen</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span></span></pre>
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