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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/1bc104b029b4f043cac42253ee2387f4d574abca">1bc104b0</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-11-29T15:33:18-05:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">withTimings: Emit allocations counter

This will allow us to back out the allocations per compiler pass from
the eventlog. Note that we dump the allocation counter rather than the
difference since this will allow us to determine how much work is done
*between* `withTiming` blocks.
</pre>
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<h4>1 changed file:</h4>
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<li class="file-stats">
<a href="#74503129756c368c70bd530fb0beb4292889db5e">
compiler/GHC/Utils/Error.hs
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<h4>Changes:</h4>
<li id="74503129756c368c70bd530fb0beb4292889db5e">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1bc104b029b4f043cac42253ee2387f4d574abca#74503129756c368c70bd530fb0beb4292889db5e"><strong>compiler/GHC/Utils/Error.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">@@ -536,14 +536,16 @@ withTiming' dflags what force_result prtimings action</td>
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<pre style="margin: 0;"> <span id="LC536" class="line" lang="haskell">              <span class="n" style="color: #333;">logInfo</span> <span class="n" style="color: #333;">dflags</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">withPprStyle</span> <span class="n" style="color: #333;">defaultUserStyle</span> <span class="o" style="font-weight: 600;">$</span></span>
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<pre style="margin: 0;"> <span id="LC537" class="line" lang="haskell">                <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"***"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">what</span> <span class="o" style="font-weight: 600;"><></span> <span class="n" style="color: #333;">colon</span></span>
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<td class="diff-line-num old_line" data-linenumber="538" 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="LC538" class="line" lang="haskell">            <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">ctx</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">initDefaultSDocContext</span> <span class="n" style="color: #333;">dflags</span></span>
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<td class="diff-line-num new_line old" data-linenumber="539" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC539" class="line" lang="haskell">            <span class="n" style="color: #333;">eventBegins</span> <span class="n" style="color: #333;">ctx</span> <span class="n" style="color: #333;">what</span></span>
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<pre style="margin: 0;"> <span id="LC539" class="line" lang="haskell">            <span class="n" style="color: #333;">alloc0</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">liftIO</span> <span class="n" style="color: #333;">getAllocationCounter</span></span>
</pre>
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<pre style="margin: 0;"> <span id="LC540" class="line" lang="haskell">            <span class="n" style="color: #333;">start</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">liftIO</span> <span class="n" style="color: #333;">getCPUTime</span></span>
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<pre style="margin: 0;">+<span id="LC541" class="line" lang="haskell">            <span class="n" style="color: #333;">eventBegins</span> <span class="n" style="color: #333;">ctx</span> <span class="n" style="color: #333;">what</span></span>
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<pre style="margin: 0;">+<span id="LC542" class="line" lang="haskell">            <span class="n" style="color: #333;">recordAllocs</span> <span class="n" style="color: #333;">alloc0</span></span>
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<pre style="margin: 0;"> <span id="LC543" class="line" lang="haskell">            <span class="o" style="font-weight: 600;">!</span><span class="n" style="color: #333;">r</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">action</span></span>
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<pre style="margin: 0;"> <span id="LC544" class="line" lang="haskell">            <span class="nb" style="color: #0086b3;">()</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">pure</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">force_result</span> <span class="n" style="color: #333;">r</span></span>
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<pre style="margin: 0;"> <span id="LC545" class="line" lang="haskell">            <span class="n" style="color: #333;">eventEnds</span> <span class="n" style="color: #333;">ctx</span> <span class="n" style="color: #333;">what</span></span>
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<pre style="margin: 0;"> <span id="LC546" class="line" lang="haskell">            <span class="n" style="color: #333;">end</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">liftIO</span> <span class="n" style="color: #333;">getCPUTime</span></span>
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<pre style="margin: 0;"> <span id="LC547" class="line" lang="haskell">            <span class="n" style="color: #333;">alloc1</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">liftIO</span> <span class="n" style="color: #333;">getAllocationCounter</span></span>
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<pre style="margin: 0;">+<span id="LC548" class="line" lang="haskell">            <span class="n" style="color: #333;">recordAllocs</span> <span class="n" style="color: #333;">alloc1</span></span>
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<pre style="margin: 0;"> <span id="LC549" class="line" lang="haskell">            <span class="c1" style="color: #998; font-style: italic;">-- recall that allocation counter counts down</span></span>
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<pre style="margin: 0;"> <span id="LC550" class="line" lang="haskell">            <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">alloc</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">alloc0</span> <span class="o" style="font-weight: 600;">-</span> <span class="n" style="color: #333;">alloc1</span></span>
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<pre style="margin: 0;"> <span id="LC551" class="line" lang="haskell">                <span class="n" style="color: #333;">time</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">realToFrac</span> <span class="p">(</span><span class="n" style="color: #333;">end</span> <span class="o" style="font-weight: 600;">-</span> <span class="n" style="color: #333;">start</span><span class="p">)</span> <span class="o" style="font-weight: 600;">*</span> <span class="mf" style="color: #099;">1e-9</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="569" 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">@@ -569,12 +571,19 @@ withTiming' dflags what force_result prtimings action</td>
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<pre style="margin: 0;"> <span id="LC571" class="line" lang="haskell">     <span class="kr" style="font-weight: 600;">else</span> <span class="n" style="color: #333;">action</span></span>
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<pre style="margin: 0;"> <span id="LC572" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC573" class="line" lang="haskell">    <span class="kr" style="font-weight: 600;">where</span> <span class="n" style="color: #333;">whenPrintTimings</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">liftIO</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">when</span> <span class="p">(</span><span class="n" style="color: #333;">prtimings</span> <span class="o" style="font-weight: 600;">==</span> <span class="kt" style="color: #458; font-weight: 600;">PrintTimings</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC574" class="line" lang="haskell"></span>
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<td class="diff-line-num new old_line" data-linenumber="572" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<pre style="margin: 0;">+<span id="LC575" class="line" lang="haskell">          <span class="n" style="color: #333;">recordAllocs</span> <span class="n" style="color: #333;">alloc</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="LC576" class="line" lang="haskell">            <span class="n" style="color: #333;">liftIO</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">traceMarkerIO</span> <span class="o" style="font-weight: 600;">$</span> <span class="s" style="color: #d14;">"GHC:allocs:"</span> <span class="o" style="font-weight: 600;">++</span> <span class="n" style="color: #333;">show</span> <span class="n" style="color: #333;">alloc</span></span>
</pre>
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<td class="diff-line-num new new_line" data-linenumber="577" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC577" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num new_line" data-linenumber="578" 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="LC578" class="line" lang="haskell">          <span class="n" style="color: #333;">eventBegins</span> <span class="n" style="color: #333;">ctx</span> <span class="n" style="color: #333;">w</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span></span>
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<td class="diff-line-num new_line old" data-linenumber="579" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC573" class="line" lang="haskell">            <span class="n" style="color: #333;">whenPrintTimings</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">traceMarkerIO</span> <span class="p">(</span><span class="n" style="color: #333;">eventBeginsDoc</span> <span class="n" style="color: #333;">ctx</span> <span class="n" style="color: #333;">w</span><span class="p">)</span></span>
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<td class="diff-line-num new_line old" data-linenumber="579" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC574" class="line" lang="haskell">            <span class="n" style="color: #333;">liftIO</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">traceEventIO</span> <span class="p">(</span><span class="n" style="color: #333;">eventBeginsDoc</span> <span class="n" style="color: #333;">ctx</span> <span class="n" style="color: #333;">w</span><span class="p">)</span></span>
</pre>
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<pre style="margin: 0;">+<span id="LC579" class="line" lang="haskell">            <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">doc</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">eventBeginsDoc</span> <span class="n" style="color: #333;">ctx</span> <span class="n" style="color: #333;">w</span></span>
</pre>
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<pre style="margin: 0;">+<span id="LC580" class="line" lang="haskell">            <span class="n" style="color: #333;">whenPrintTimings</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">traceMarkerIO</span> <span class="n" style="color: #333;">doc</span></span>
</pre>
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<pre style="margin: 0;">+<span id="LC581" class="line" lang="haskell">            <span class="n" style="color: #333;">liftIO</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">traceEventIO</span> <span class="n" style="color: #333;">doc</span></span>
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<td class="diff-line-num new new_line" data-linenumber="582" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC582" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC583" class="line" lang="haskell">          <span class="n" style="color: #333;">eventEnds</span> <span class="n" style="color: #333;">ctx</span> <span class="n" style="color: #333;">w</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span></span>
</pre>
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576
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<td class="diff-line-num new_line old" data-linenumber="584" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC576" class="line" lang="haskell">            <span class="n" style="color: #333;">whenPrintTimings</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">traceMarkerIO</span> <span class="p">(</span><span class="n" style="color: #333;">eventEndsDoc</span> <span class="n" style="color: #333;">ctx</span> <span class="n" style="color: #333;">w</span><span class="p">)</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="577" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
577
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<td class="diff-line-num new_line old" data-linenumber="584" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC577" class="line" lang="haskell">            <span class="n" style="color: #333;">liftIO</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">traceEventIO</span> <span class="p">(</span><span class="n" style="color: #333;">eventEndsDoc</span> <span class="n" style="color: #333;">ctx</span> <span class="n" style="color: #333;">w</span><span class="p">)</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="578" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="584" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
584
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<pre style="margin: 0;">+<span id="LC584" class="line" lang="haskell">            <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">doc</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">eventEndsDoc</span> <span class="n" style="color: #333;">ctx</span> <span class="n" style="color: #333;">w</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="578" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="585" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
585
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<pre style="margin: 0;">+<span id="LC585" class="line" lang="haskell">            <span class="n" style="color: #333;">whenPrintTimings</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">traceMarkerIO</span> <span class="n" style="color: #333;">doc</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="578" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="586" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
586
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<pre style="margin: 0;">+<span id="LC586" class="line" lang="haskell">            <span class="n" style="color: #333;">liftIO</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">traceEventIO</span> <span class="n" style="color: #333;">doc</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="578" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
578
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<td class="diff-line-num new_line" data-linenumber="587" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
587
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<pre style="margin: 0;"> <span id="LC587" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="579" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
579
</td>
<td class="diff-line-num new_line" data-linenumber="588" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
588
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<pre style="margin: 0;"> <span id="LC588" class="line" lang="haskell">          <span class="n" style="color: #333;">eventBeginsDoc</span> <span class="n" style="color: #333;">ctx</span> <span class="n" style="color: #333;">w</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">showSDocOneLine</span> <span class="n" style="color: #333;">ctx</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"GHC:started:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">w</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="580" 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">
580
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<td class="diff-line-num new_line" data-linenumber="589" 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">
589
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<pre style="margin: 0;"> <span id="LC589" class="line" lang="haskell">          <span class="n" style="color: #333;">eventEndsDoc</span>   <span class="n" style="color: #333;">ctx</span> <span class="n" style="color: #333;">w</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">showSDocOneLine</span> <span class="n" style="color: #333;">ctx</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"GHC:finished:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">w</span></span>
</pre>
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