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Marge Bot pushed to branch master 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: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/05a4be5800ad5274f2884bb33d7becefdd6fb4f6">05a4be58</a></strong>
<div>
<span> by Sebastian Graf </span> <i> at 2024-08-21T03:19:33-04:00 </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: var(--default-mono-font, "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;'>Improve efficiency of `assertError` (#24625)

... by moving `lazy` to the exception-throwing branch.
It's all documented in `Note [Strictness of assertError]`.
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3 changed files:
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<li class="file-stats">
<a href="#58c67851d6e1f050ad5572c08d9064b15eb2fd95">
libraries/ghc-internal/src/GHC/Internal/IO/Exception.hs
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+
testsuite/tests/simplCore/should_compile/T24625.hs
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<a href="#fc07c260b75644727a8cdc1af5c861a44d4bfb5e">
testsuite/tests/simplCore/should_compile/all.T
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Changes:
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<li id="58c67851d6e1f050ad5572c08d9064b15eb2fd95">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/05a4be5800ad5274f2884bb33d7becefdd6fb4f6#58c67851d6e1f050ad5572c08d9064b15eb2fd95"><strong style="font-weight: 600;">libraries/ghc-internal/src/GHC/Internal/IO/Exception.hs</strong></a>
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<td class="line_content match" style="color: rgba(31,30,36,.24); padding: inherit;" bgcolor="#fbfafd">@@ -438,13 +438,10 @@ instance Show IOException where</td>
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<td class="new_line diff-line-num" data-linenumber="438" style="width: 35px; color: rgba(31,30,36,.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: var(--default-mono-font, "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="LC438" class="line" lang="haskell">         <span class="s" style="color: #d14;">""</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">id</span></span>
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<td class="new_line diff-line-num" data-linenumber="439" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
439
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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="LC439" 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;">showString</span> <span class="s" style="color: #d14;">" ("</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">showString</span> <span class="n" style="color: #333;">s</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">showString</span> <span class="s" style="color: #d14;">")"</span><span class="p">)</span></span>
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440
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<td class="new_line diff-line-num" data-linenumber="440" style="width: 35px; color: rgba(31,30,36,.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: var(--default-mono-font, "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="LC440" class="line" lang="haskell"></span>
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<td class="old_line diff-line-num old" data-linenumber="441" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
441
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<td class="new_line diff-line-num old" data-linenumber="441" style="width: 35px; color: rgba(31,30,36,.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: var(--default-mono-font, "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="LC441" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Note the use of "lazy". This means that</span></span>
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<td class="old_line diff-line-num old" data-linenumber="442" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
442
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<td class="new_line diff-line-num old" data-linenumber="441" style="width: 35px; color: rgba(31,30,36,.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: var(--default-mono-font, "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="LC442" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--     assert False (throw e)</span></span>
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<td class="old_line diff-line-num old" data-linenumber="443" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
443
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<td class="new_line diff-line-num old" data-linenumber="441" style="width: 35px; color: rgba(31,30,36,.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: var(--default-mono-font, "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="LC443" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- will throw the assertion failure rather than e. See trac #5561.</span></span>
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<td class="new_line diff-line-num" data-linenumber="441" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
441
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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="LC441" class="line" lang="haskell"><span class="n" style="color: #333;">assertError</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">(</span><span class="o" style="font-weight: 600;">?</span><span class="n" style="color: #333;">callStack</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CallStack</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=></span> <span class="kt" style="color: #458; font-weight: 600;">Bool</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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445
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<td class="new_line diff-line-num" data-linenumber="442" style="width: 35px; color: rgba(31,30,36,.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: var(--default-mono-font, "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="LC442" class="line" lang="haskell"><span class="n" style="color: #333;">assertError</span> <span class="n" style="color: #333;">predicate</span> <span class="n" style="color: #333;">v</span></span>
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<td class="old_line diff-line-num old" data-linenumber="446" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
446
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<td class="new_line diff-line-num old" data-linenumber="443" style="width: 35px; color: rgba(31,30,36,.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: var(--default-mono-font, "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="LC446" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">predicate</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;"><span class="idiff left deletion" style="background-color: #fac5cd;">lazy</span></span><span class="idiff right deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;">v</span></span>
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447
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<td class="new_line diff-line-num old" data-linenumber="443" style="width: 35px; color: rgba(31,30,36,.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: var(--default-mono-font, "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="LC447" 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;">unsafeDupablePerformIO</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="new_line diff-line-num new" data-linenumber="443" style="width: 35px; color: rgba(31,30,36,.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: var(--default-mono-font, "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="LC443" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">predicate</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">v</span></span>
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<td class="new_line diff-line-num new" data-linenumber="444" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
444
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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: var(--default-mono-font, "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="LC444" 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 addition" style="background-color: #c7f0d2;">lazy</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">$</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;">unsafeDupablePerformIO</span> <span class="o" style="font-weight: 600;">$</span> <span class="kr" style="font-weight: 600;">do</span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right addition" style="background-color: #c7f0d2;">-- lazy: See Note [Strictness of assertError]</span></span></span>
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448
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445
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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="LC445" class="line" lang="haskell">    <span class="n" style="color: #333;">ccsStack</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">currentCallStack</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: var(--default-mono-font, "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="LC446" class="line" lang="haskell">    <span class="kr" style="font-weight: 600;">let</span></span>
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<td class="new_line diff-line-num" data-linenumber="447" style="width: 35px; color: rgba(31,30,36,.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: var(--default-mono-font, "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="LC447" class="line" lang="haskell">      <span class="n" style="color: #333;">implicitParamCallStack</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">prettyCallStackLines</span> <span class="o" style="font-weight: 600;">?</span><span class="n" style="color: #333;">callStack</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="452" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">...</td>
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<td class="line_content match" style="color: rgba(31,30,36,.24); padding: inherit;" bgcolor="#fbfafd">@@ -452,6 +449,44 @@ assertError predicate v</td>
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<td class="new_line diff-line-num" data-linenumber="449" style="width: 35px; color: rgba(31,30,36,.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: var(--default-mono-font, "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="LC449" class="line" lang="haskell">      <span class="n" style="color: #333;">stack</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">intercalate</span> <span class="s" style="color: #d14;">"</span><span class="se" style="color: #d14;">\n</span><span class="s" style="color: #d14;">"</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">implicitParamCallStack</span> <span class="o" style="font-weight: 600;">++</span> <span class="n" style="color: #333;">ccsCallStack</span></span>
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<td class="new_line diff-line-num" data-linenumber="450" style="width: 35px; color: rgba(31,30,36,.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: var(--default-mono-font, "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="LC450" class="line" lang="haskell">    <span class="n" style="color: #333;">throwIO</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AssertionFailed</span> <span class="p">(</span><span class="s" style="color: #d14;">"Assertion failed</span><span class="se" style="color: #d14;">\n</span><span class="s" style="color: #d14;">"</span> <span class="o" style="font-weight: 600;">++</span> <span class="n" style="color: #333;">stack</span><span class="p">))</span></span>
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454
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<td class="new_line diff-line-num" data-linenumber="451" style="width: 35px; color: rgba(31,30,36,.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: var(--default-mono-font, "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="LC451" class="line" lang="haskell"></span>
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<td class="old_line diff-line-num new" data-linenumber="455" style="width: 35px; color: rgba(31,30,36,.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="new_line diff-line-num new" data-linenumber="452" style="width: 35px; color: rgba(31,30,36,.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: var(--default-mono-font, "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="LC452" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">{- Note [Strictness of assertError]</span></span>
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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: var(--default-mono-font, "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="LC453" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></span>
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<td class="old_line diff-line-num new" data-linenumber="455" style="width: 35px; color: rgba(31,30,36,.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="new_line diff-line-num new" data-linenumber="454" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
454
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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: var(--default-mono-font, "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="LC454" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">It is vital that Demand Analysis does not see `assertError p e` as strict in e.</span></span>
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<td class="new_line diff-line-num new" data-linenumber="455" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
455
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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: var(--default-mono-font, "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="LC455" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">#5561 details what happens otherwise, tested by libraries/base/tests/assert.hs:</span></span>
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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: var(--default-mono-font, "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="LC456" class="line" lang="haskell"></span>
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<td class="new_line diff-line-num new" data-linenumber="457" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
457
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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: var(--default-mono-font, "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="LC457" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">  let e1 i = throw Overflow</span></span>
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<td class="new_line diff-line-num new" data-linenumber="458" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
458
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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: var(--default-mono-font, "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="LC458" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">  in assertError False (e1 5)</span></span>
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<td class="new_line diff-line-num new" data-linenumber="459" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
459
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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: var(--default-mono-font, "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="LC459" class="line" lang="haskell"></span>
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<td class="old_line diff-line-num new" data-linenumber="455" style="width: 35px; color: rgba(31,30,36,.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="new_line diff-line-num new" data-linenumber="460" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
460
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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: var(--default-mono-font, "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="LC460" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">This should *not* throw the Overflow exception; rather it should throw an</span></span>
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<td class="new_line diff-line-num new" data-linenumber="461" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
461
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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: var(--default-mono-font, "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="LC461" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">AssertionError.</span></span>
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<td class="old_line diff-line-num new" data-linenumber="455" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="new_line diff-line-num new" data-linenumber="462" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
462
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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: var(--default-mono-font, "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="LC462" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Hence we use GHC.Exts.lazy to make assertError appear lazy in e, so that it</span></span>
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<td class="new_line diff-line-num new" data-linenumber="463" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
463
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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: var(--default-mono-font, "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="LC463" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">is not called by-value.</span></span>
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</td>
<td class="new_line diff-line-num new" data-linenumber="464" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
464
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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: var(--default-mono-font, "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="LC464" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">(Note that the reason we need `lazy` in the first place is that error has a</span></span>
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<td class="new_line diff-line-num new" data-linenumber="465" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
465
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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: var(--default-mono-font, "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="LC465" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">bottoming result, which is strict in all free variables.)</span></span>
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<td class="old_line diff-line-num new" data-linenumber="455" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="new_line diff-line-num new" data-linenumber="466" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
466
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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: var(--default-mono-font, "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="LC466" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">The way we achieve this is a bit subtle; before #24625 we defined it as</span></span>
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<td class="new_line diff-line-num new" data-linenumber="467" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
467
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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: var(--default-mono-font, "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="LC467" class="line" lang="haskell"></span>
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<td class="old_line diff-line-num new" data-linenumber="455" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="new_line diff-line-num new" data-linenumber="468" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
468
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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: var(--default-mono-font, "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="LC468" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">  assertError p e | p         = lazy e</span></span>
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<td class="new_line diff-line-num new" data-linenumber="469" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
469
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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: var(--default-mono-font, "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="LC469" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">                  | otherwise = error "assertion"</span></span>
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<td class="new_line diff-line-num new" data-linenumber="470" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
470
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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: var(--default-mono-font, "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="LC470" class="line" lang="haskell"></span>
</pre></td>
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<td class="old_line diff-line-num new" data-linenumber="455" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="new_line diff-line-num new" data-linenumber="471" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
471
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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: var(--default-mono-font, "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="LC471" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">but this means that in the following example (full code in T24625) we cannot</span></span>
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472
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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: var(--default-mono-font, "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="LC472" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">cancel away the allocation of `Just x` because of the intervening `lazy`:</span></span>
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473
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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: var(--default-mono-font, "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="LC473" class="line" lang="haskell"></span>
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<td class="new_line diff-line-num new" data-linenumber="474" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
474
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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: var(--default-mono-font, "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="LC474" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">  case assertError False (Just x) of Just y -> y</span></span>
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<td class="new_line diff-line-num new" data-linenumber="475" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
475
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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: var(--default-mono-font, "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="LC475" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">  ==> { simplify }</span></span>
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<td class="new_line diff-line-num new" data-linenumber="476" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
476
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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: var(--default-mono-font, "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="LC476" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">  case lazy (Just x) of Just y -> y</span></span>
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<td class="new_line diff-line-num new" data-linenumber="477" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
477
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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: var(--default-mono-font, "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="LC477" class="line" lang="haskell"></span>
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<td class="new_line diff-line-num new" data-linenumber="478" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
478
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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: var(--default-mono-font, "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="LC478" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Instead, we put `lazy` in the otherwise branch, thus</span></span>
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479
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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: var(--default-mono-font, "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="LC479" class="line" lang="haskell"></span>
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<td class="new_line diff-line-num new" data-linenumber="480" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
480
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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: var(--default-mono-font, "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="LC480" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">  assertError p e | p         = e</span></span>
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<td class="new_line diff-line-num new" data-linenumber="481" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
481
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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: var(--default-mono-font, "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="LC481" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">                  | otherwise = lazy $ error "assertion"</span></span>
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<td class="new_line diff-line-num new" data-linenumber="482" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
482
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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: var(--default-mono-font, "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="LC482" class="line" lang="haskell"></span>
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<td class="new_line diff-line-num new" data-linenumber="483" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
483
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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: var(--default-mono-font, "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="LC483" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">The effect on #5561 is the same: since the otherwise branch appears lazy in e,</span></span>
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<td class="new_line diff-line-num new" data-linenumber="484" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
484
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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: var(--default-mono-font, "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="LC484" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">the overall demand on `e` must be lazy as well.</span></span>
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<td class="new_line diff-line-num new" data-linenumber="485" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
485
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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: var(--default-mono-font, "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="LC485" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Furthermore, since there is no intervening `lazy` on the expected code path,</span></span>
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<td class="new_line diff-line-num new" data-linenumber="486" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
486
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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: var(--default-mono-font, "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="LC486" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">the Simplifier may perform case-of-case on e and simplify the `Just x` example</span></span>
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487
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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: var(--default-mono-font, "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="LC487" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">to `x`.</span></span>
</pre></td>
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<td class="old_line diff-line-num new" data-linenumber="455" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="new_line diff-line-num new" data-linenumber="488" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
488
</td>
<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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="LC488" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">-}</span></span>
</pre></td>
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<td class="old_line diff-line-num new" data-linenumber="455" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="new_line diff-line-num new" data-linenumber="489" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
489
</td>
<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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="LC489" class="line" lang="haskell"></span>
</pre></td>
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<td class="old_line diff-line-num" data-linenumber="455" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
455
</td>
<td class="new_line diff-line-num" data-linenumber="490" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
490
</td>
<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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="LC490" class="line" lang="haskell"><span class="n" style="color: #333;">unsupportedOperation</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">IOError</span></span>
</pre></td>
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<td class="old_line diff-line-num" data-linenumber="456" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
456
</td>
<td class="new_line diff-line-num" data-linenumber="491" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
491
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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="LC491" class="line" lang="haskell"><span class="n" style="color: #333;">unsupportedOperation</span> <span class="o" style="font-weight: 600;">=</span></span>
</pre></td>
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<td class="old_line diff-line-num" data-linenumber="457" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
457
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<td class="new_line diff-line-num" data-linenumber="492" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
492
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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="LC492" class="line" lang="haskell">   <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">IOError</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span> <span class="kt" style="color: #458; font-weight: 600;">UnsupportedOperation</span> <span class="s" style="color: #d14;">""</span></span>
</pre></td>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="480" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="515" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">...</td>
<td class="line_content match" style="color: rgba(31,30,36,.24); padding: inherit;" bgcolor="#fbfafd">@@ -480,4 +515,3 @@ untangle coded message</td>
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480
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<td class="new_line diff-line-num" data-linenumber="515" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
515
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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="LC515" class="line" lang="haskell">          <span class="kr" style="font-weight: 600;">_</span>         <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="n" style="color: #333;">loc</span><span class="p">,</span> <span class="s" style="color: #d14;">""</span><span class="p">)</span></span>
</pre></td>
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<td class="old_line diff-line-num" data-linenumber="481" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
481
</td>
<td class="new_line diff-line-num" data-linenumber="516" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
516
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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="LC516" class="line" lang="haskell">        <span class="p">}</span></span>
</pre></td>
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<td class="old_line diff-line-num" data-linenumber="482" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
482
</td>
<td class="new_line diff-line-num" data-linenumber="517" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
517
</td>
<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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="LC517" class="line" lang="haskell">    <span class="n" style="color: #333;">not_bar</span> <span class="n" style="color: #333;">c</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">c</span> <span class="o" style="font-weight: 600;">/=</span> <span class="sc" style="color: #d14;">'|'</span></span></pre></td>
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<td class="old_line diff-line-num old" data-linenumber="483" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
483
</td>
<td class="new_line diff-line-num old" data-linenumber="518" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
 
</td>
<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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="LC483" class="line" lang="haskell"></span></pre></td>
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</table>
<br>
</li>
<li id="ff6c16f758789e9df1ae3a2a37dd83bae5aed0b2">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/05a4be5800ad5274f2884bb33d7becefdd6fb4f6#ff6c16f758789e9df1ae3a2a37dd83bae5aed0b2"><strong style="font-weight: 600;">testsuite/tests/simplCore/should_compile/T24625.hs</strong></a>
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</td>
<td class="new_line diff-line-num new" data-linenumber="1" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
1
</td>
<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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="LC1" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">module</span> <span class="nn" style="color: #555;">T24625</span> <span class="kr" style="font-weight: 600;">where</span></span>
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<td class="old_line diff-line-num new" data-linenumber="0" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="new_line diff-line-num new" data-linenumber="2" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
2
</td>
<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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="LC2" class="line" lang="haskell"></span>
</pre></td>
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<td class="old_line diff-line-num new" data-linenumber="0" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="new_line diff-line-num new" data-linenumber="3" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
3
</td>
<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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="LC3" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.IO.Exception</span></span>
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<td class="old_line diff-line-num new" data-linenumber="0" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="new_line diff-line-num new" data-linenumber="4" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
4
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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: var(--default-mono-font, "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="LC4" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.Exts</span></span>
</pre></td>
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</td>
<td class="new_line diff-line-num new" data-linenumber="5" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
5
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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: var(--default-mono-font, "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="LC5" class="line" lang="haskell"></span>
</pre></td>
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<td class="new_line diff-line-num new" data-linenumber="6" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
6
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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: var(--default-mono-font, "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="LC6" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">Foo</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Foo</span> <span class="o" style="font-weight: 600;">!</span><span class="kt" style="color: #458; font-weight: 600;">Int</span> <span class="o" style="font-weight: 600;">!</span><span class="kt" style="color: #458; font-weight: 600;">Int</span> <span class="kt" style="color: #458; font-weight: 600;">String</span></span>
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<td class="new_line diff-line-num new" data-linenumber="7" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
7
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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: var(--default-mono-font, "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="LC7" class="line" lang="haskell"></span>
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<td class="new_line diff-line-num new" data-linenumber="8" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
8
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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: var(--default-mono-font, "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="LC8" class="line" lang="haskell"><span class="n" style="color: #333;">true</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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<td class="new_line diff-line-num new" data-linenumber="9" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
9
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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: var(--default-mono-font, "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="LC9" class="line" lang="haskell"><span class="n" style="color: #333;">true</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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<td class="new_line diff-line-num new" data-linenumber="10" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
10
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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: var(--default-mono-font, "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="LC10" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# NOINLINE true #-}</span></span>
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<td class="new_line diff-line-num new" data-linenumber="11" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
11
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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: var(--default-mono-font, "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="LC11" class="line" lang="haskell"></span>
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<td class="new_line diff-line-num new" data-linenumber="12" style="width: 35px; color: rgba(31,30,36,.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: var(--default-mono-font, "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="LC12" class="line" lang="haskell"><span class="n" style="color: #333;">function</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Int</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Int</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;">Int</span></span>
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<td class="new_line diff-line-num new" data-linenumber="13" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
13
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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: var(--default-mono-font, "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="LC13" class="line" lang="haskell"><span class="n" style="color: #333;">function</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;">b</span> <span class="n" style="color: #333;">c</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">assertError</span> <span class="n" style="color: #333;">true</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Foo</span> <span class="n" style="color: #333;">a</span> <span class="n" style="color: #333;">b</span> <span class="n" style="color: #333;">c</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">of</span></span>
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<td class="new_line diff-line-num new" data-linenumber="14" style="width: 35px; color: rgba(31,30,36,.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: var(--default-mono-font, "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="LC14" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">Foo</span> <span class="n" style="color: #333;">a</span> <span class="n" style="color: #333;">b</span> <span class="n" style="color: #333;">c</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;">b</span></span></pre></td>
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</li>
<li id="fc07c260b75644727a8cdc1af5c861a44d4bfb5e">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/05a4be5800ad5274f2884bb33d7becefdd6fb4f6#fc07c260b75644727a8cdc1af5c861a44d4bfb5e"><strong style="font-weight: 600;">testsuite/tests/simplCore/should_compile/all.T</strong></a>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="526" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">...</td>
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<td class="line_content match" style="color: rgba(31,30,36,.24); padding: inherit;" bgcolor="#fbfafd">@@ -526,5 +526,6 @@ test('T24808', [ grep_errmsg(r'myFunction') ], compile, ['-O -ddump-simpl'])</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: var(--default-mono-font, "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="LC526" class="line" lang="perl"><span class="c1" style="color: #998; font-style: italic;"># T24944 needs -O2 because it's about SpecConstr</span></span>
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<td class="new_line diff-line-num" data-linenumber="527" style="width: 35px; color: rgba(31,30,36,.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: var(--default-mono-font, "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="LC527" class="line" lang="perl"><span class="nv" style="color: teal;">test</span><span class="p">('</span><span class="s1" style="color: #d14;">T24944</span><span class="p">',</span> <span class="p">[</span><span class="nv" style="color: teal;">extra_files</span><span class="p">(['</span><span class="s1" style="color: #d14;">T24944a.hs</span><span class="p">'])],</span> <span class="nv" style="color: teal;">multimod_compile</span><span class="p">,</span> <span class="p">['</span><span class="s1" style="color: #d14;">T24944</span><span class="p">',</span> <span class="p">'</span><span class="s1" style="color: #d14;">-v0 -O2</span><span class="p">'])</span></span>
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528
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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="LC528" class="line" lang="perl"></span>
</pre></td>
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<td class="old_line diff-line-num new" data-linenumber="529" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="new_line diff-line-num new" data-linenumber="529" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
529
</td>
<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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="LC529" class="line" lang="perl"><span class="nv" style="color: teal;">test</span><span class="p">('</span><span class="s1" style="color: #d14;">T24625</span><span class="p">',</span> <span class="p">[</span> <span class="nv" style="color: teal;">grep_errmsg</span><span class="p">(</span><span class="nv" style="color: teal;">r</span><span class="p">'</span><span class="s1" style="color: #d14;">case lazy</span><span class="p">')</span> <span class="p">],</span> <span class="nv" style="color: teal;">compile</span><span class="p">,</span> <span class="p">['</span><span class="s1" style="color: #d14;">-O -fno-ignore-asserts -ddump-simpl -dsuppress-uniques</span><span class="p">'])</span></span>
</pre></td>
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<td class="old_line diff-line-num" data-linenumber="529" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
529
</td>
<td class="new_line diff-line-num" data-linenumber="530" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
530
</td>
<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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="LC530" class="line" lang="perl"><span class="nv" style="color: teal;">test</span><span class="p">('</span><span class="s1" style="color: #d14;">T24725a</span><span class="p">',</span> <span class="p">[</span> <span class="nv" style="color: teal;">grep_errmsg</span><span class="p">(</span><span class="nv" style="color: teal;">r</span><span class="p">'</span><span class="s1" style="color: #d14;">testedRule</span><span class="p">')],</span> <span class="nv" style="color: teal;">compile</span><span class="p">,</span> <span class="p">['</span><span class="s1" style="color: #d14;">-O -ddump-rule-firings</span><span class="p">'])</span></span>
</pre></td>
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<tr class="line_holder" style="line-height: 1.6;">
<td class="old_line diff-line-num" data-linenumber="530" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
530
</td>
<td class="new_line diff-line-num" data-linenumber="531" style="width: 35px; color: rgba(31,30,36,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
531
</td>
<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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="LC531" class="line" lang="perl"><span class="nv" style="color: teal;">test</span><span class="p">('</span><span class="s1" style="color: #d14;">T25033</span><span class="p">',</span> <span class="nv" style="color: teal;">normal</span><span class="p">,</span> <span class="nv" style="color: teal;">compile</span><span class="p">,</span> <span class="p">['</span><span class="s1" style="color: #d14;">-O</span><span class="p">'])</span></span></pre></td>
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