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<h3 style="margin-top: 20px; margin-bottom: 10px;">
Ryan Scott pushed to branch wip/T21077-take-two at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
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Commits:
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<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6a247718be5bea2a1f5d47ade42c6c57d635dab1">6a247718</a></strong>
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<span> by Ryan Scott </span> <i> at 2023-07-21T07:28:41-04:00 </i>
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<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Draft: Don't use VAExpansion

See https://gitlab.haskell.org/ghc/ghc/-/issues/21077#note_514392
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1 changed file:
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<a href="#36920f1fa315563c590243b1b096096bc305ca70">
compiler/GHC/Tc/Gen/Head.hs
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Changes:
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<li id="36920f1fa315563c590243b1b096096bc305ca70">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6a247718be5bea2a1f5d47ade42c6c57d635dab1#36920f1fa315563c590243b1b096096bc305ca70"><strong style="font-weight: bold;">compiler/GHC/Tc/Gen/Head.hs</strong></a>
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<td class="line_content match" style="color: rgba(31,30,36,0.24); padding: inherit;" bgcolor="#fbfafd">@@ -310,10 +310,9 @@ splitHsApps e = go e (top_ctxt 0 e) []</td>
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC310" class="line" lang="haskell">               <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">EWrap</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">EExpand</span> <span class="n" style="color: #333;">orig</span><span class="p">)</span> <span class="o" style="font-weight: 600;">:</span> <span class="n" style="color: #333;">args</span><span class="p">)</span></span>
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC311" class="line" lang="haskell"></span>
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<td class="new_line diff-line-num" data-linenumber="312" style="width: 35px; color: rgba(31,30,36,0.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC312" class="line" lang="haskell">    <span class="n" style="color: #333;">go</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">HsUntypedSplice</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">HsUntypedSpliceTop</span> <span class="n" style="color: #333;">mod_finalizers</span> <span class="n" style="color: #333;">fun</span><span class="p">)</span></span>
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<td class="old_line diff-line-num old" data-linenumber="313" style="width: 35px; color: rgba(31,30,36,0.24); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="new_line diff-line-num old" data-linenumber="313" style="width: 35px; color: rgba(31,30,36,0.24); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
 
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'>-<span id="LC313" class="line" lang="haskell">                        <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">HsUntypedSpliceExpr</span> <span class="kr" style="font-weight: 600;">_</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">L</span> <span class="kr" style="font-weight: 600;"><span class="idiff left right deletion" style="background-color: #fac5cd;">_</span></span> <span class="n" style="color: #333;">orig</span><span class="p">)))</span> <span class="n" style="color: #333;">ctxt</span> <span class="n" style="color: #333;">args</span></span>
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<td class="new_line diff-line-num new" data-linenumber="313" style="width: 35px; color: rgba(31,30,36,0.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'>+<span id="LC313" class="line" lang="haskell">                        <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">HsUntypedSpliceExpr</span> <span class="kr" style="font-weight: 600;">_</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">L</span> <span class="n" style="color: #333;"><span class="idiff left right addition" style="background-color: #c7f0d2;">l</span></span> <span class="n" style="color: #333;">orig</span><span class="p">)))</span> <span class="n" style="color: #333;">ctxt</span> <span class="n" style="color: #333;">args</span></span>
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC314" class="line" lang="haskell">     <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="n" style="color: #333;">addModFinalizersWithLclEnv</span> <span class="n" style="color: #333;">mod_finalizers</span></span>
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<td class="old_line diff-line-num old" data-linenumber="315" style="width: 35px; color: rgba(31,30,36,0.24); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="new_line diff-line-num old" data-linenumber="315" style="width: 35px; color: rgba(31,30,36,0.24); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
 
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'>-<span id="LC315" class="line" lang="haskell">          <span class="n" style="color: #333;">go</span> <span class="n" style="color: #333;">fun</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">VAExpansion</span> <span class="n" style="color: #333;">orig</span> <span class="p">(</span><span class="n" style="color: #333;">appCtxtLoc</span> <span class="n" style="color: #333;">ctxt</span><span class="p">))</span></span>
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<td class="new_line diff-line-num old" data-linenumber="315" style="width: 35px; color: rgba(31,30,36,0.24); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
 
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'>-<span id="LC316" class="line" lang="haskell">                 <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">EWrap</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">EExpand</span> <span class="n" style="color: #333;">orig</span><span class="p">)</span> <span class="o" style="font-weight: 600;">:</span> <span class="n" style="color: #333;">args</span><span class="p">)</span></span>
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<td class="new_line diff-line-num new" data-linenumber="315" style="width: 35px; color: rgba(31,30,36,0.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'>+<span id="LC315" class="line" lang="haskell">          <span class="n" style="color: #333;">go</span> <span class="n" style="color: #333;">fun</span> <span class="p">(</span><span class="n" style="color: #333;">set</span> <span class="n" style="color: #333;">l</span> <span class="n" style="color: #333;">ctxt</span><span class="p">)</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">EWrap</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">EExpand</span> <span class="n" style="color: #333;">orig</span><span class="p">)</span> <span class="o" style="font-weight: 600;">:</span> <span class="n" style="color: #333;">args</span><span class="p">)</span></span>
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC316" class="line" lang="haskell"></span>
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<td class="old_line diff-line-num" data-linenumber="318" style="width: 35px; color: rgba(31,30,36,0.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
318
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<td class="new_line diff-line-num" data-linenumber="317" style="width: 35px; color: rgba(31,30,36,0.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
317
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC317" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;">-- See Note [Desugar OpApp in the typechecker]</span></span>
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<td class="old_line diff-line-num" data-linenumber="319" style="width: 35px; color: rgba(31,30,36,0.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
319
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<td class="new_line diff-line-num" data-linenumber="318" style="width: 35px; color: rgba(31,30,36,0.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
318
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span id="LC318" class="line" lang="haskell">    <span class="n" style="color: #333;">go</span> <span class="n" style="color: #333;">e</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">OpApp</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">arg1</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">L</span> <span class="n" style="color: #333;">l</span> <span class="n" style="color: #333;">op</span><span class="p">)</span> <span class="n" style="color: #333;">arg2</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">args</span></span>
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