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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>
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<h4>
Commits:
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<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/51dbfa52df483822b99bb191d2ffc0943954e1d3">51dbfa52</a></strong>
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<span>by Ben Gamari</span>
<i>at 2020-07-15T04:05:34-04:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">StgToCmm: Use CmmRegOff smart constructor
Previously we would generate expressions of the form
`CmmRegOff BaseReg 0`. This should do no harm (and really should be
handled by the NCG anyways) but it's better to just generate a plain
`CmmReg`.
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<h4>1 changed file:</h4>
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<a href="#a7fcc734b34b00498cf1eb5792d2f328ca3696ea">
compiler/GHC/StgToCmm/CgUtils.hs
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<h4>Changes:</h4>
<li id="a7fcc734b34b00498cf1eb5792d2f328ca3696ea">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/51dbfa52df483822b99bb191d2ffc0943954e1d3#a7fcc734b34b00498cf1eb5792d2f328ca3696ea"><strong>compiler/GHC/StgToCmm/CgUtils.hs</strong></a>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="121" 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">@@ -121,7 +121,7 @@ regTableOffset dflags n =</td>
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<pre style="margin: 0;"> <span id="LC121" class="line" lang="haskell"><span class="n" style="color: #333;">get_Regtable_addr_from_offset</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;">Int</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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<pre style="margin: 0;"> <span id="LC122" class="line" lang="haskell"><span class="n" style="color: #333;">get_Regtable_addr_from_offset</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">offset</span> <span class="o" style="font-weight: 600;">=</span></span>
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<pre style="margin: 0;"> <span id="LC123" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">haveRegBase</span> <span class="p">(</span><span class="n" style="color: #333;">targetPlatform</span> <span class="n" style="color: #333;">dflags</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC124" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">then</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">C</span>mmRegOff</span> <span class="n" style="color: #333;">baseReg</span> <span class="n" style="color: #333;">offset</span></span>
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<pre style="margin: 0;">+<span id="LC124" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">then</span> <span class="n" style="color: #333;"><span class="idiff left right">c</span>mmRegOff</span> <span class="n" style="color: #333;">baseReg</span> <span class="n" style="color: #333;">offset</span></span>
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<pre style="margin: 0;"> <span id="LC125" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">else</span> <span class="n" style="color: #333;">regTableOffset</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">offset</span></span>
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<pre style="margin: 0;"> <span id="LC126" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC127" class="line" lang="haskell"><span class="cd">-- | Fixup global registers so that they assign to locations within the</span></span>
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