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<h3>
Sebastian Graf pushed to branch wip/T18249
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/d034213026e9c090ad4e796b196174142fa0ec34">d0342130</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2020-09-16T15:14:58+02:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">More fixes
</pre>
</li>
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<h4>2 changed files:</h4>
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<li class="file-stats">
<a href="#ac0a6473a902628a18b3a470122e5cc1ce09de14">
compiler/GHC/HsToCore/PmCheck.hs
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<li class="file-stats">
<a href="#8d8e5922fde8bc19ffa2bc9cae6b6720abb88564">
compiler/GHC/HsToCore/PmCheck/Oracle.hs
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</li>
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<h4>Changes:</h4>
<li id="ac0a6473a902628a18b3a470122e5cc1ce09de14">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d034213026e9c090ad4e796b196174142fa0ec34#ac0a6473a902628a18b3a470122e5cc1ce09de14"><strong>compiler/GHC/HsToCore/PmCheck.hs</strong></a>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="928" 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="928" 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">@@ -928,7 +928,7 @@ checkGrd grd = CA $ \inc -> case grd of</td>
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<pre style="margin: 0;"> <span id="LC928" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- let x = e: Refine with x ~ e</span></span>
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<td class="diff-line-num old_line" data-linenumber="929" 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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<td class="diff-line-num new_line" data-linenumber="929" 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="LC929" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">PmLet</span> <span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;">e</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="930" 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="LC930" class="line" lang="haskell">    <span class="n" style="color: #333;">matched</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">addPhiCtNablas</span> <span class="n" style="color: #333;">inc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PhiCoreCt</span> <span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;">e</span><span class="p">)</span></span>
</pre>
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<td class="diff-line-num new_line old" data-linenumber="931" 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="LC931" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;"><span class="idiff left right">-- </span>tracePm "check:Let" (ppr x <+> char '=' <+> ppr e)</span></span>
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<td class="diff-line-num new old_line" data-linenumber="932" 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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<td class="diff-line-num new new_line" data-linenumber="931" 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="LC931" class="line" lang="haskell">    <span class="n" style="color: #333;">tracePm</span> <span class="s" style="color: #d14;">"check:Let"</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">x</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">char</span> <span class="sc" style="color: #d14;">'='</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">e</span><span class="p">)</span></span>
</pre>
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<pre style="margin: 0;"> <span id="LC932" class="line" lang="haskell">    <span class="n" style="color: #333;">pure</span> <span class="kt" style="color: #458; font-weight: 600;">CheckResult</span> <span class="p">{</span> <span class="n" style="color: #333;">cr_ret</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">emptyRedSets</span> <span class="p">{</span> <span class="n" style="color: #333;">rs_cov</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">matched</span> <span class="p">}</span></span>
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<td class="diff-line-num old_line" data-linenumber="933" 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="LC933" class="line" lang="haskell">                     <span class="p">,</span> <span class="n" style="color: #333;">cr_uncov</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mempty</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="934" 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="LC934" class="line" lang="haskell">                     <span class="p">,</span> <span class="n" style="color: #333;">cr_approx</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Precise</span> <span class="p">}</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="940" 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="940" 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">@@ -940,7 +940,7 @@ checkGrd grd = CA $ \inc -> case grd of</td>
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<pre style="margin: 0;"> <span id="LC940" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;">-- mb_info = Just info <==> PmBang originates from bang pattern in source</span></span>
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<pre style="margin: 0;"> <span id="LC941" class="line" lang="haskell">    <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">bangs</span> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">info</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">mb_info</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">unitOL</span> <span class="p">(</span><span class="n" style="color: #333;">div</span><span class="p">,</span> <span class="n" style="color: #333;">info</span><span class="p">)</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="942" 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="LC942" class="line" lang="haskell">              <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span>            <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">NilOL</span></span>
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<td class="diff-line-num old old_line" data-linenumber="943" 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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<td class="diff-line-num new_line old" data-linenumber="943" 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="LC943" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;"><span class="idiff left right">-- </span>tracePm "check:Bang" (ppr x <+> ppr div)</span></span>
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<td class="diff-line-num new old_line" data-linenumber="944" 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="LC943" class="line" lang="haskell">    <span class="n" style="color: #333;">tracePm</span> <span class="s" style="color: #d14;">"check:Bang"</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">x</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">div</span><span class="p">)</span></span>
</pre>
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944
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<pre style="margin: 0;"> <span id="LC944" class="line" lang="haskell">    <span class="n" style="color: #333;">pure</span> <span class="kt" style="color: #458; font-weight: 600;">CheckResult</span> <span class="p">{</span> <span class="n" style="color: #333;">cr_ret</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">RedSets</span> <span class="p">{</span> <span class="n" style="color: #333;">rs_cov</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">matched</span><span class="p">,</span> <span class="n" style="color: #333;">rs_div</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">div</span><span class="p">,</span> <span class="n" style="color: #333;">rs_bangs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">bangs</span> <span class="p">}</span></span>
</pre>
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945
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945
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<pre style="margin: 0;"> <span id="LC945" class="line" lang="haskell">                     <span class="p">,</span> <span class="n" style="color: #333;">cr_uncov</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mempty</span></span>
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946
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946
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<pre style="margin: 0;"> <span id="LC946" class="line" lang="haskell">                     <span class="p">,</span> <span class="n" style="color: #333;">cr_approx</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Precise</span> <span class="p">}</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="949" 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="949" 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">@@ -949,9 +949,10 @@ checkGrd grd = CA $ \inc -> case grd of</td>
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949
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949
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<pre style="margin: 0;"> <span id="LC949" class="line" lang="haskell">    <span class="o" style="font-weight: 600;">!</span><span class="n" style="color: #333;">div</span> <span class="o" style="font-weight: 600;"><-</span> <span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">isPmAltConMatchStrict</span> <span class="n" style="color: #333;">con</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="950" 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">
950
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<td class="diff-line-num new_line" data-linenumber="950" 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">
950
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<pre style="margin: 0;"> <span id="LC950" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">then</span> <span class="n" style="color: #333;">addPhiCtNablas</span> <span class="n" style="color: #333;">inc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PhiBotCt</span> <span class="n" style="color: #333;">x</span><span class="p">)</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="951" 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">
951
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951
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<pre style="margin: 0;"> <span id="LC951" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">else</span> <span class="n" style="color: #333;">pure</span> <span class="n" style="color: #333;">mempty</span></span>
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<td class="diff-line-num new old_line" data-linenumber="952" 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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952
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<pre style="margin: 0;">+<span id="LC952" class="line" lang="haskell">    <span class="n" style="color: #333;">tracePm</span> <span class="s" style="color: #d14;">"checkGrd:Con1"</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">inc</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">div</span><span class="p">)</span></span>
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952
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<td class="diff-line-num new_line" data-linenumber="953" 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">
953
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<pre style="margin: 0;"> <span id="LC953" class="line" lang="haskell">    <span class="o" style="font-weight: 600;">!</span><span class="n" style="color: #333;">matched</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">addPhiCtNablas</span> <span class="n" style="color: #333;">inc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PhiConCt</span> <span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;">con</span> <span class="n" style="color: #333;">tvs</span> <span class="p">(</span><span class="n" style="color: #333;">map</span> <span class="n" style="color: #333;">evVarPred</span> <span class="n" style="color: #333;">dicts</span><span class="p">)</span> <span class="n" style="color: #333;">args</span><span class="p">)</span></span>
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953
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<td class="diff-line-num new_line" data-linenumber="954" 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">
954
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<pre style="margin: 0;"> <span id="LC954" class="line" lang="haskell">    <span class="o" style="font-weight: 600;">!</span><span class="n" style="color: #333;">uncov</span>   <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">addPhiCtNablas</span> <span class="n" style="color: #333;">inc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PhiNotConCt</span> <span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;">con</span><span class="p">)</span></span>
</pre>
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954
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<td class="diff-line-num new_line old" data-linenumber="955" 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="LC954" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;"><span class="idiff left right">-- tracePm "checkGrd:Con" (ppr inc $$ ppr grd $$ ppr con_cts</span> $$ ppr matched)</span></span>
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955
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<pre style="margin: 0;">+<span id="LC955" class="line" lang="haskell">    <span class="n" style="color: #333;"><span class="idiff left">tracePm</span></span><span class="idiff"> </span><span class="s" style="color: #d14;"><span class="idiff">"checkGrd:Con2"</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">ppr</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">inc</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">$$</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ppr</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">grd</span></span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">matched</span><span class="p">)</span></span>
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955
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<td class="diff-line-num new_line" data-linenumber="956" 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">
956
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<pre style="margin: 0;"> <span id="LC956" class="line" lang="haskell">    <span class="n" style="color: #333;">pure</span> <span class="kt" style="color: #458; font-weight: 600;">CheckResult</span> <span class="p">{</span> <span class="n" style="color: #333;">cr_ret</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">emptyRedSets</span> <span class="p">{</span> <span class="n" style="color: #333;">rs_cov</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">matched</span><span class="p">,</span> <span class="n" style="color: #333;">rs_div</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">div</span> <span class="p">}</span></span>
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956
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<td class="diff-line-num new_line" data-linenumber="957" 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">
957
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<pre style="margin: 0;"> <span id="LC957" class="line" lang="haskell">                     <span class="p">,</span> <span class="n" style="color: #333;">cr_uncov</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">uncov</span></span>
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957
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<td class="diff-line-num new_line" data-linenumber="958" 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">
958
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<pre style="margin: 0;"> <span id="LC958" class="line" lang="haskell">                     <span class="p">,</span> <span class="n" style="color: #333;">cr_approx</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Precise</span> <span class="p">}</span></span>
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<li id="8d8e5922fde8bc19ffa2bc9cae6b6720abb88564">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d034213026e9c090ad4e796b196174142fa0ec34#8d8e5922fde8bc19ffa2bc9cae6b6720abb88564"><strong>compiler/GHC/HsToCore/PmCheck/Oracle.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">@@ -97,8 +97,8 @@ tracePm herald doc = do</td>
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<pre style="margin: 0;"> <span id="LC97" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# INLINE tracePm #-}</span>  <span class="c1" style="color: #998; font-style: italic;">-- see Note [INLINE conditional tracing utilities]</span></span>
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<pre style="margin: 0;"> <span id="LC98" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC99" class="line" lang="haskell"><span class="n" style="color: #333;">debugOn</span> <span class="o" style="font-weight: 600;">::</span> <span class="nb" style="color: #0086b3;">()</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span></span>
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<pre style="margin: 0;">-<span id="LC100" class="line" lang="haskell"><span class="n" style="color: #333;">debugOn</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">False</span></span>
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<pre style="margin: 0;">-<span id="LC101" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;"><span class="idiff left right">-- </span>debugOn _ = True</span></span>
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<pre style="margin: 0;">+<span id="LC100" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;"><span class="idiff left right">-- </span>debugOn _ = False</span></span>
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<pre style="margin: 0;">+<span id="LC101" class="line" lang="haskell"><span class="n" style="color: #333;">debugOn</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">True</span></span>
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<pre style="margin: 0;"> <span id="LC102" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC103" class="line" lang="haskell"><span class="n" style="color: #333;">trc</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">String</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">SDoc</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">a</span></span>
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<pre style="margin: 0;"> <span id="LC104" class="line" lang="haskell"><span class="n" style="color: #333;">trc</span> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">debugOn</span> <span class="nb" style="color: #0086b3;">()</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">pprTrace</span></span>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="280" 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">@@ -280,8 +280,8 @@ instCon fuel nabla@MkNabla{nabla_ty_st = ty_st} x con = MaybeT $ do</td>
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<pre style="margin: 0;"> <span id="LC280" class="line" lang="haskell">        <span class="p">,</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">fuel</span></span>
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<pre style="margin: 0;"> <span id="LC281" class="line" lang="haskell">        <span class="p">]</span></span>
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<pre style="margin: 0;"> <span id="LC282" class="line" lang="haskell">      <span class="n" style="color: #333;">runMaybeT</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="LC283" class="line" lang="haskell">        <span class="n" style="color: #333;">addPhiCt</span> <span class="n" style="color: #333;">nabla</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PhiConCt</span> <span class="n" style="color: #333;">x</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PmAltConLike</span> <span class="n" style="color: #333;">con</span><span class="p">)</span> <span class="n" style="color: #333;">ex_tvs</span> <span class="n" style="color: #333;">gammas</span> <span class="n" style="color: #333;">arg_ids</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC284" class="line" lang="haskell">        <span class="c1" style="color: #998; font-style: italic;"><span class="idiff left right">-- </span>inhabitationTest fuel (nabla_ty_st nabla) nabla'</span></span>
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<pre style="margin: 0;">+<span id="LC283" class="line" lang="haskell">        <span class="n" style="color: #333;"><span class="idiff left">nabla'</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="n" style="color: #333;">addPhiCt</span> <span class="n" style="color: #333;">nabla</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PhiConCt</span> <span class="n" style="color: #333;">x</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PmAltConLike</span> <span class="n" style="color: #333;">con</span><span class="p">)</span> <span class="n" style="color: #333;">ex_tvs</span> <span class="n" style="color: #333;">gammas</span> <span class="n" style="color: #333;">arg_ids</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC284" class="line" lang="haskell">        <span class="n" style="color: #333;">inhabitationTest</span> <span class="n" style="color: #333;">fuel</span> <span class="p">(</span><span class="n" style="color: #333;">nabla_ty_st</span> <span class="n" style="color: #333;">nabla</span><span class="p">)</span> <span class="n" style="color: #333;">nabla'</span></span>
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<pre style="margin: 0;"> <span id="LC285" class="line" lang="haskell">    <span class="kt" style="color: #458; font-weight: 600;">Nothing</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">pure</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">nabla</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- Could not guess arg_tys. Just assume inhabited</span></span>
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<pre style="margin: 0;"> <span id="LC286" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC287" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">{- Note [Strict fields and variables of unlifted type]</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">@@ -953,16 +953,16 @@ addNotConCt nabla x nalt = do</td>
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<pre style="margin: 0;"> <span id="LC953" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- 2. Only record the new fact when it's not already implied by one of the</span></span>
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<pre style="margin: 0;"> <span id="LC954" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- solutions</span></span>
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<pre style="margin: 0;"> <span id="LC955" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">implies</span> <span class="n" style="color: #333;">nalt</span> <span class="n" style="color: #333;">sol</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">eqPmAltCon</span> <span class="p">(</span><span class="n" style="color: #333;">paca_con</span> <span class="n" style="color: #333;">sol</span><span class="p">)</span> <span class="n" style="color: #333;">nalt</span> <span class="o" style="font-weight: 600;">==</span> <span class="kt" style="color: #458; font-weight: 600;">Disjoint</span></span>
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<pre style="margin: 0;">-<span id="LC956" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">let</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">neg_changed</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">neg'</span></span><span class="p"><span class="idiff right">)</span></span></span>
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<pre style="margin: 0;">-<span id="LC957" class="line" lang="haskell">            <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">any</span> <span class="p">(</span><span class="n" style="color: #333;">implies</span> <span class="n" style="color: #333;">nalt</span><span class="p">)</span> <span class="n" style="color: #333;">pos</span> <span class="o" style="font-weight: 600;">=</span> <span class="p"><span class="idiff left">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">False</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">neg</span></span><span class="p"><span class="idiff right">)</span></span></span>
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<pre style="margin: 0;">+<span id="LC956" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;"><span class="idiff left right">neg'</span></span></span>
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<pre style="margin: 0;">+<span id="LC957" class="line" lang="haskell">            <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">any</span> <span class="p">(</span><span class="n" style="color: #333;">implies</span> <span class="n" style="color: #333;">nalt</span><span class="p">)</span> <span class="n" style="color: #333;">pos</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;"><span class="idiff left right">neg</span></span></span>
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<pre style="margin: 0;"> <span id="LC958" class="line" lang="haskell">            <span class="c1" style="color: #998; font-style: italic;">-- See Note [Completeness checking with required Thetas]</span></span>
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<pre style="margin: 0;">-<span id="LC959" class="line" lang="haskell">            <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">hasRequiredTheta</span> <span class="n" style="color: #333;">nalt</span>  <span class="o" style="font-weight: 600;">=</span> <span class="p"><span class="idiff left">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">False</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">neg</span></span><span class="p"><span class="idiff right">)</span></span></span>
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<pre style="margin: 0;">-<span id="LC960" class="line" lang="haskell">            <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span>              <span class="o" style="font-weight: 600;">=</span> <span class="p"><span class="idiff left">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">True</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff">  </span><span class="n" style="color: #333;"><span class="idiff">extendPmAltConSet</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">neg</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">nalt</span></span><span class="p"><span class="idiff right">)</span></span></span>
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<pre style="margin: 0;">+<span id="LC959" class="line" lang="haskell">            <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">hasRequiredTheta</span> <span class="n" style="color: #333;">nalt</span>  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;"><span class="idiff left right">neg</span></span></span>
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<pre style="margin: 0;">+<span id="LC960" class="line" lang="haskell">            <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span>              <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;"><span class="idiff left">extendPmAltConSet</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">neg</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">nalt</span></span></span>
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<td class="diff-line-num old_line" data-linenumber="961" 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">
961
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961
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<pre style="margin: 0;"> <span id="LC961" class="line" lang="haskell">      <span class="kt" style="color: #458; font-weight: 600;">MASSERT</span><span class="p">(</span> <span class="n" style="color: #333;">isPmAltConMatchStrict</span> <span class="n" style="color: #333;">nalt</span> <span class="p">)</span></span>
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962
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962
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<pre style="margin: 0;"> <span id="LC962" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">vi'</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">vi</span><span class="p">{</span> <span class="n" style="color: #333;">vi_neg</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">neg'</span><span class="p">,</span> <span class="n" style="color: #333;">vi_bot</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">IsNotBot</span> <span class="p">}</span></span>
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963
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963
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<pre style="margin: 0;"> <span id="LC963" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- 3. Make sure there's at least one other possible constructor</span></span>
</pre>
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964
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964
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<pre style="margin: 0;"> <span id="LC964" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">nalt</span> <span class="kr" style="font-weight: 600;">of</span></span>
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<td class="diff-line-num old old_line" data-linenumber="965" 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">
965
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<td class="diff-line-num new_line old" data-linenumber="965" 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="LC965" class="line" lang="haskell">        <span class="kt" style="color: #458; font-weight: 600;">PmAltConLike</span> <span class="n" style="color: #333;">cl</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">neg_changed</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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<td class="diff-line-num new old_line" data-linenumber="966" 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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965
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<pre style="margin: 0;">+<span id="LC965" class="line" lang="haskell">        <span class="kt" style="color: #458; font-weight: 600;">PmAltConLike</span> <span class="n" style="color: #333;">cl</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span></span>
</pre>
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966
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966
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<pre style="margin: 0;"> <span id="LC966" class="line" lang="haskell">          <span class="c1" style="color: #998; font-style: italic;">-- Mark dirty to force a delayed inhabitation test</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="967" 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">
967
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967
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<pre style="margin: 0;"> <span id="LC967" class="line" lang="haskell">          <span class="n" style="color: #333;">rcm'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lift</span> <span class="p">(</span><span class="n" style="color: #333;">markMatched</span> <span class="n" style="color: #333;">cl</span> <span class="n" style="color: #333;">rcm</span><span class="p">)</span></span>
</pre>
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968
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968
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<pre style="margin: 0;"> <span id="LC968" class="line" lang="haskell">          <span class="n" style="color: #333;">pure</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">x'</span><span class="p">,</span> <span class="n" style="color: #333;">vi'</span><span class="p">{</span> <span class="n" style="color: #333;">vi_rcm</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">rcm'</span> <span class="p">})</span></span>
</pre>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1082" 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="1082" 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">@@ -1082,16 +1082,16 @@ inhabitationTest fuel  old_ty_st nabla@MkNabla{ nabla_tm_st = ts } = do</td>
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<pre style="margin: 0;"> <span id="LC1082" class="line" lang="haskell">                <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span>                                    <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">traverseDirty</span></span>
</pre>
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1083
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1083
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<pre style="margin: 0;"> <span id="LC1083" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- We have to start the inhabitation test with a Nabla where all dirty bits</span></span>
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1084
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1084
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<pre style="margin: 0;"> <span id="LC1084" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- are cleared</span></span>
</pre>
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<td class="diff-line-num new_line old" data-linenumber="1085" 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="LC1085" class="line" lang="haskell">  <span class="n" style="color: #333;">ts'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">trv_dirty</span> <span class="p">(</span><span class="n" style="color: #333;">test_one</span> <span class="n" style="color: #333;">nabla</span><span class="p"><span class="idiff left">{</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">nabla_tm_st</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">=</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ts</span></span><span class="p"><span class="idiff">{</span></span><span class="n" style="color: #333;"><span class="idiff">ts_dirty</span></span><span class="o" style="font-weight: 600;"><span class="idiff">=</span></span><span class="n" style="color: #333;"><span class="idiff">emptyDVarSet</span></span><span class="p"><span class="idiff">}</span></span><span class="idiff"> </span><span class="p"><span class="idiff right">}</span>)</span> <span class="n" style="color: #333;">ts</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1086" 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="LC1085" class="line" lang="haskell">  <span class="n" style="color: #333;">ts'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">trv_dirty</span> <span class="p">(</span><span class="n" style="color: #333;">test_one</span> <span class="n" style="color: #333;">nabla</span><span class="p">)</span> <span class="n" style="color: #333;">ts</span></span>
</pre>
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1086
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1086
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<pre style="margin: 0;"> <span id="LC1086" class="line" lang="haskell">  <span class="n" style="color: #333;">pure</span> <span class="n" style="color: #333;">nabla</span><span class="p">{</span> <span class="n" style="color: #333;">nabla_tm_st</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">ts'</span><span class="p">{</span><span class="n" style="color: #333;">ts_dirty</span><span class="o" style="font-weight: 600;">=</span><span class="n" style="color: #333;">emptyDVarSet</span><span class="p">}}</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1087" 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">
1087
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<td class="diff-line-num new_line" data-linenumber="1087" 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">
1087
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<pre style="margin: 0;"> <span id="LC1087" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">where</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1088" 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">
1088
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<td class="diff-line-num new_line" data-linenumber="1088" 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">
1088
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<pre style="margin: 0;"> <span id="LC1088" class="line" lang="haskell">    <span class="n" style="color: #333;">test_one</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Nabla</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">VarInfo</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">MaybeT</span> <span class="kt" style="color: #458; font-weight: 600;">DsM</span> <span class="kt" style="color: #458; font-weight: 600;">VarInfo</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="1089" 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">
1089
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<td class="diff-line-num new_line old" data-linenumber="1089" 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="LC1089" class="line" lang="haskell">    <span class="n" style="color: #333;">test_one</span> <span class="n" style="color: #333;">nabla</span> <span class="n" style="color: #333;">vi</span> <span class="o" style="font-weight: 600;">=</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1090" 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="1089" 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">
1089
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<pre style="margin: 0;">+<span id="LC1089" class="line" lang="haskell">    <span class="n" style="color: #333;">test_one</span> <span class="n" style="color: #333;">nabla</span> <span class="n" style="color: #333;">vi</span> <span class="o" style="font-weight: 600;">=</span><span class="idiff left"> </span><span class="kr" style="font-weight: 600;"><span class="idiff right">do</span></span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1090" 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">
1090
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<td class="diff-line-num new_line" data-linenumber="1090" 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">
1090
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<pre style="margin: 0;"> <span id="LC1090" class="line" lang="haskell">      <span class="n" style="color: #333;">lift</span> <span class="p">(</span><span class="n" style="color: #333;">varNeedsTesting</span> <span class="n" style="color: #333;">old_ty_st</span> <span class="n" style="color: #333;">nabla</span> <span class="n" style="color: #333;">vi</span><span class="p">)</span> <span class="o" style="font-weight: 600;">>>=</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="kr" style="font-weight: 600;">case</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1091" 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">
1091
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<td class="diff-line-num new_line" data-linenumber="1091" 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">
1091
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<pre style="margin: 0;"> <span id="LC1091" class="line" lang="haskell">        <span class="kt" style="color: #458; font-weight: 600;">True</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1092" 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">
1092
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<td class="diff-line-num new_line" data-linenumber="1092" 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">
1092
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<pre style="margin: 0;"> <span id="LC1092" class="line" lang="haskell">          <span class="c1" style="color: #998; font-style: italic;">-- No solution yet and needs testing</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1093" 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">
1093
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<td class="diff-line-num new_line" data-linenumber="1093" 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">
1093
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<pre style="margin: 0;"> <span id="LC1093" class="line" lang="haskell">          <span class="n" style="color: #333;">_trcM</span> <span class="s" style="color: #d14;">"instantiate one"</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">vi</span><span class="p">)</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="1094" 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">
1094
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<td class="diff-line-num new_line old" data-linenumber="1094" 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="LC1094" class="line" lang="haskell">          <span class="n" style="color: #333;">instantiate</span> <span class="p">(</span><span class="n" style="color: #333;">fuel</span><span class="o" style="font-weight: 600;">-</span><span class="mi" style="color: #099;">1</span><span class="p">)</span> <span class="n" style="color: #333;">nabla</span> <span class="n" style="color: #333;">vi</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1095" 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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<td class="diff-line-num new new_line" data-linenumber="1094" 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">
1094
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<pre style="margin: 0;">+<span id="LC1094" class="line" lang="haskell">          <span class="n" style="color: #333;">instantiate</span> <span class="p">(</span><span class="n" style="color: #333;">fuel</span><span class="o" style="font-weight: 600;">-</span><span class="mi" style="color: #099;">1</span><span class="p">)</span> <span class="n" style="color: #333;">nabla</span><span class="p"><span class="idiff left">{</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">nabla_tm_st</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">=</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ts</span></span><span class="p"><span class="idiff">{</span></span><span class="n" style="color: #333;"><span class="idiff">ts_dirty</span></span><span class="o" style="font-weight: 600;"><span class="idiff">=</span></span><span class="n" style="color: #333;"><span class="idiff">emptyDVarSet</span></span><span class="p"><span class="idiff">}</span></span><span class="idiff"> </span><span class="p"><span class="idiff right">}</span></span> <span class="n" style="color: #333;">vi</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1095" 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">
1095
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<td class="diff-line-num new_line" data-linenumber="1095" 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">
1095
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<pre style="margin: 0;"> <span id="LC1095" 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;">pure</span> <span class="n" style="color: #333;">vi</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1096" 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">
1096
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<td class="diff-line-num new_line" data-linenumber="1096" 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">
1096
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<pre style="margin: 0;"> <span id="LC1096" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1097" 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">
1097
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<td class="diff-line-num new_line" data-linenumber="1097" 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">
1097
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<pre style="margin: 0;"> <span id="LC1097" class="line" lang="haskell"><span class="cd">-- | Checks whether the given 'VarInfo' needs to be tested for inhabitants.</span></span>
</pre>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1111" 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="1111" 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">@@ -1111,7 +1111,7 @@ varNeedsTesting _         MkNabla{nabla_tm_st=tm_st}     vi</td>
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<td class="diff-line-num old_line" data-linenumber="1111" 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">
1111
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<td class="diff-line-num new_line" data-linenumber="1111" 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">
1111
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<pre style="margin: 0;"> <span id="LC1111" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">elemDVarSet</span> <span class="p">(</span><span class="n" style="color: #333;">vi_id</span> <span class="n" style="color: #333;">vi</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">ts_dirty</span> <span class="n" style="color: #333;">tm_st</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">pure</span> <span class="kt" style="color: #458; font-weight: 600;">True</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1112" 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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1112
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<pre style="margin: 0;"> <span id="LC1112" class="line" lang="haskell"><span class="n" style="color: #333;">varNeedsTesting</span> <span class="n" style="color: #333;">old_ty_st</span> <span class="kt" style="color: #458; font-weight: 600;">MkNabla</span><span class="p">{</span><span class="n" style="color: #333;">nabla_ty_st</span><span class="o" style="font-weight: 600;">=</span><span class="n" style="color: #333;">new_ty_st</span><span class="p">}</span> <span class="kr" style="font-weight: 600;">_</span></span>
</pre>
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1113
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<pre style="margin: 0;"> <span id="LC1113" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- Same type state => still inhabited</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="1114" 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">
1114
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<td class="diff-line-num new_line old" data-linenumber="1114" 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="LC1114" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;"><span class="idiff left">tyStateChanged</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">old_ty_st</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">new_ty_st</span></span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">pure</span> <span class="kt" style="color: #458; font-weight: 600;">False</span></span>
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<td class="diff-line-num new old_line" data-linenumber="1115" 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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<td class="diff-line-num new new_line" data-linenumber="1114" 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">
1114
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<pre style="margin: 0;">+<span id="LC1114" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;"><span class="idiff left">not</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">tyStateChanged</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">old_ty_st</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">new_ty_st</span></span><span class="p"><span class="idiff right">)</span></span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">pure</span> <span class="kt" style="color: #458; font-weight: 600;">False</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1115" 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">
1115
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<pre style="margin: 0;"> <span id="LC1115" class="line" lang="haskell"><span class="n" style="color: #333;">varNeedsTesting</span> <span class="n" style="color: #333;">old_ty_st</span> <span class="kt" style="color: #458; font-weight: 600;">MkNabla</span><span class="p">{</span><span class="n" style="color: #333;">nabla_ty_st</span><span class="o" style="font-weight: 600;">=</span><span class="n" style="color: #333;">new_ty_st</span><span class="p">}</span> <span class="n" style="color: #333;">vi</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 old_line" data-linenumber="1116" 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">
1116
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<pre style="margin: 0;"> <span id="LC1116" class="line" lang="haskell">  <span class="p">(</span><span class="kr" style="font-weight: 600;">_</span><span class="p">,</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">,</span> <span class="n" style="color: #333;">old_rep_ty</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">tntrGuts</span> <span class="o" style="font-weight: 600;"><$></span> <span class="n" style="color: #333;">pmTopNormaliseType</span> <span class="n" style="color: #333;">old_ty_st</span> <span class="p">(</span><span class="n" style="color: #333;">idType</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">vi_id</span> <span class="n" style="color: #333;">vi</span><span class="p">)</span></span>
</pre>
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<pre style="margin: 0;"> <span id="LC1117" class="line" lang="haskell">  <span class="p">(</span><span class="kr" style="font-weight: 600;">_</span><span class="p">,</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">,</span> <span class="n" style="color: #333;">new_rep_ty</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">tntrGuts</span> <span class="o" style="font-weight: 600;"><$></span> <span class="n" style="color: #333;">pmTopNormaliseType</span> <span class="n" style="color: #333;">new_ty_st</span> <span class="p">(</span><span class="n" style="color: #333;">idType</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">vi_id</span> <span class="n" style="color: #333;">vi</span><span class="p">)</span></span>
</pre>
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