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<h3>
Ben Gamari pushed to branch wip/memory-barriers
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/8c20ee414efc23e1b80669521fa229ee39c05e1a">8c20ee41</a></strong>
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<span>by Ben Gamari</span>
<i>at 2019-06-08T17:14:58Z</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add missing memory barrier
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<h4>1 changed file:</h4>
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<a href="#6011cad13b19136953f8ee72df01a66623c5c1b0">
includes/Cmm.h
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<h4>Changes:</h4>
<li id="6011cad13b19136953f8ee72df01a66623c5c1b0">
<a href="https://gitlab.haskell.org/ghc/ghc/commit/8c20ee414efc23e1b80669521fa229ee39c05e1a#6011cad13b19136953f8ee72df01a66623c5c1b0"><strong>includes/Cmm.h</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">@@ -309,6 +309,8 @@</td>
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<pre style="margin: 0;"> <span id="LC309" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;"> again: \</span></span>
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<pre style="margin: 0;"> <span id="LC310" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;"> W_ info; \</span></span>
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<pre style="margin: 0;"> <span id="LC311" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;"> LOAD_INFO(ret,x) \</span></span>
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<pre style="margin: 0;">+<span id="LC312" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;"> </span><span class="cm" style="color: #998; font-style: italic;">/* See Note [Heap memory barriers] in SMP.h */</span><span class="cp" style="color: #999; font-weight: 600;"> \</span></span>
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<pre style="margin: 0;">+<span id="LC313" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;"> prim_read_barrier(); \</span></span>
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<pre style="margin: 0;"> <span id="LC314" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;"> switch [INVALID_OBJECT .. N_CLOSURE_TYPES] \</span></span>
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<pre style="margin: 0;"> <span id="LC315" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;"> (TO_W_( %INFO_TYPE(%STD_INFO(info)) )) { \</span></span>
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<pre style="margin: 0;"> <span id="LC316" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;"> case \</span></span>
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