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<h3>
Simon Jakobi pushed to branch wip/sjakobi/nondetfolds
at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
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Commits:
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<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9ebc5d3925902fd43a8e06f72a225ab15d39aa4a">9ebc5d39</a></strong>
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<span>by Simon Jakobi</span>
<i>at 2020-04-02T03:08:03+02:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Try strict fold in mk_mod_usage_info.ent_map
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<h4>1 changed file:</h4>
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<a href="#74a7b3677ea9cb2138e0b682ce38fd67dbf57c14">
compiler/GHC/HsToCore/Usage.hs
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<h4>Changes:</h4>
<li id="74a7b3677ea9cb2138e0b682ce38fd67dbf57c14">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9ebc5d3925902fd43a8e06f72a225ab15d39aa4a#74a7b3677ea9cb2138e0b682ce38fd67dbf57c14"><strong>compiler/GHC/HsToCore/Usage.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">@@ -260,9 +260,9 @@ mk_mod_usage_info pit hsc_env this_mod direct_imports used_names</td>
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<pre style="margin: 0;"> <span id="LC260" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- ent_map groups together all the things imported and used</span></span>
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<pre style="margin: 0;"> <span id="LC261" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- from a particular module</span></span>
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<pre style="margin: 0;"> <span id="LC262" class="line" lang="haskell"> <span class="n" style="color: #333;">ent_map</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">ModuleEnv</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">OccName</span><span class="p">]</span></span>
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<pre style="margin: 0;">-<span id="LC263" class="line" lang="haskell"> <span class="n" style="color: #333;">ent_map</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">nonDet<span class="idiff left">FoldUniqSet</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">add_mv</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">emptyModuleEnv</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">used_names</span></span><span class="idiff"> </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">-- TODO?</span></span></span>
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<pre style="margin: 0;">-<span id="LC264" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- nonDet<span class="idiff left right">FoldUFM is OK here. If you follow the logic, we sort by OccName</span></span></span>
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<pre style="margin: 0;">-<span id="LC265" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- in ent_hashs</span></span>
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<pre style="margin: 0;">+<span id="LC263" class="line" lang="haskell"> <span class="n" style="color: #333;">ent_map</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">nonDet<span class="idiff left">StrictFoldUniqSet</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">add_mv</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">emptyModuleEnv</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">used_names</span></span></span>
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<pre style="margin: 0;">+<span id="LC264" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- nonDet<span class="idiff left right">StrictFoldUniqSet is OK here. If you follow the logic, we sort by</span></span></span>
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<pre style="margin: 0;">+<span id="LC265" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">OccName </span>in ent_hashs</span></span>
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<pre style="margin: 0;"> <span id="LC266" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;"> <span id="LC267" class="line" lang="haskell"> <span class="n" style="color: #333;">add_mv</span> <span class="n" style="color: #333;">name</span> <span class="n" style="color: #333;">mv_map</span></span>
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<pre style="margin: 0;"> <span id="LC268" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isWiredInName</span> <span class="n" style="color: #333;">name</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mv_map</span> <span class="c1" style="color: #998; font-style: italic;">-- ignore wired-in names</span></span>
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