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<h3>

Ben Gamari pushed to branch wip/backports

at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>

</h3>

<h4>

Commits:

</h4>

<ul>

<li>

<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f579acd1b0531fb19831b3bf3012263c4bb532df">f579acd1</a></strong>

<div>

<span>by Simon Peyton Jones</span>

<i>at 2020-07-23T11:11:07-04:00</i>

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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix specialisation for DFuns

When specialising a DFun we must take care to saturate the

unfolding.  See Note [Specialising DFuns] in Specialise.

Fixes #18120

(cherry picked from commit 88e3c8150d2b2d96c3ebc0b2942c9af44071c511)

</pre>

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<h4>6 changed files:</h4>

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<a href="#c9f253bc92ffa226506febcfb5ef5e67536616f2">

compiler/coreSyn/CoreUnfold.hs

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<a href="#739e7c8c5f5618e9473d5a01d0a50b4c2aa7daa0">

compiler/deSugar/DsBinds.hs

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<a href="#8e5716cfebabf9b3b1774b148dca4e897301a054">

compiler/specialise/Specialise.hs

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<a href="#341aef35ac370771edf59ec6b9fbb31507fa6f18">

compiler/typecheck/TcSigs.hs

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<a href="#05aba2c695e8e684f6f1a4a5c10de5a19175ceea">

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+

testsuite/tests/simplCore/should_compile/T18120.hs

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<a href="#fc07c260b75644727a8cdc1af5c861a44d4bfb5e">

testsuite/tests/simplCore/should_compile/all.T

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<h4>Changes:</h4>

<li id="c9f253bc92ffa226506febcfb5ef5e67536616f2">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f579acd1b0531fb19831b3bf3012263c4bb532df#c9f253bc92ffa226506febcfb5ef5e67536616f2"><strong>compiler/coreSyn/CoreUnfold.hs</strong></a>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="169" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="169" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -169,47 +169,47 @@ mkInlinableUnfolding dflags expr</td>

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<td class="diff-line-num old_line" data-linenumber="169" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

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<pre style="margin: 0;"> <span id="LC169" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">where</span></span>

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<td class="diff-line-num old_line" data-linenumber="170" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

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<pre style="margin: 0;"> <span id="LC170" class="line" lang="haskell">    <span class="n" style="color: #333;">expr'</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">simpleOptExpr</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">expr</span></span>

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<pre style="margin: 0;"> <span id="LC171" class="line" lang="haskell"></span>

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<td class="diff-line-num old old_line" data-linenumber="172" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC172" class="line" lang="haskell"><span class="n" style="color: #333;">specUnfolding</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">DynFlags</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Id</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Var</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CoreExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CoreExpr</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Arity</span></span>

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<pre style="margin: 0;">+<span id="LC172" class="line" lang="haskell"><span class="n" style="color: #333;">specUnfolding</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">DynFlags</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC173" class="line" lang="haskell">              <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Var</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CoreExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CoreExpr</span><span class="p">)</span></span>

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<td class="diff-line-num new new_line" data-linenumber="174" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<pre style="margin: 0;">+<span id="LC174" class="line" lang="haskell">              <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">CoreArg</span><span class="p">]</span>   <span class="c1" style="color: #998; font-style: italic;">-- LHS arguments in the RULE</span></span>

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<pre style="margin: 0;"> <span id="LC175" class="line" lang="haskell">              <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Unfolding</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Unfolding</span></span>

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<pre style="margin: 0;"> <span id="LC176" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See Note [Specialising unfoldings]</span></span>

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<pre style="margin: 0;">-<span id="LC175" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- specUnfolding spec_bndrs spec_a<span class="idiff left right">pp arity_decrease</span> unf</span></span>

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<pre style="margin: 0;">-<span id="LC176" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--   = \spec_bndrs. <span class="idiff left right">spec_app( unf )</span></span></span>

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<pre style="margin: 0;">+<span id="LC177" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- specUnfolding spec_bndrs spec_a<span class="idiff left right">rgs</span> unf</span></span>

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<pre style="margin: 0;">+<span id="LC178" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--   = \spec_bndrs. <span class="idiff left right">unf spec_args</span></span></span>

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<pre style="margin: 0;"> <span id="LC179" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>

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<pre style="margin: 0;">-<span id="LC178" class="line" lang="haskell"><span class="n" style="color: #333;">specUnfolding</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;"><span class="idiff left">fn</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">spec_bndrs</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">spec_app</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">arity_decrease</span></span></span>

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<pre style="margin: 0;">+<span id="LC180" class="line" lang="haskell"><span class="n" style="color: #333;">specUnfolding</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;"><span class="idiff left">spec_bndrs</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">spec_app</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">rule_lhs_args</span></span></span>

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<pre style="margin: 0;"> <span id="LC181" class="line" lang="haskell">              <span class="n" style="color: #333;">df</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">DFunUnfolding</span> <span class="p">{</span> <span class="n" style="color: #333;">df_bndrs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">old_bndrs</span><span class="p">,</span> <span class="n" style="color: #333;">df_con</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">con</span><span class="p">,</span> <span class="n" style="color: #333;">df_args</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">args</span> <span class="p">})</span></span>

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<pre style="margin: 0;">-<span id="LC180" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">ASSERT2</span><span class="p">(</span> <span class="n" style="color: #333;">arity_decrease</span> <span class="o" style="font-weight: 600;">==</span> <span class="n" style="color: #333;">count</span> <span class="n" style="color: #333;">isId</span> <span class="n" style="color: #333;">old_bndrs</span> <span class="o" style="font-weight: 600;">-</span> <span class="n" style="color: #333;">count</span> <span class="n" style="color: #333;">isId</span> <span class="n" style="color: #333;">spec_bndrs</span></span>

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<pre style="margin: 0;">-<span id="LC181" class="line" lang="haskell">           <span class="p">,</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">df</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">spec_bndrs</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="p">(</span><span class="n" style="color: #333;">spec_app</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Var</span> <span class="n" style="color: #333;">fn</span><span class="p">))</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">arity_decrease</span> <span class="p">)</span></span>

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<pre style="margin: 0;">+<span id="LC182" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">ASSERT2</span><span class="p">(</span> <span class="n" style="color: #333;">rule_lhs_args</span> <span class="p">`</span><span class="n" style="color: #333;">equalLength</span><span class="p">`</span> <span class="n" style="color: #333;">old_bndrs</span></span>

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<pre style="margin: 0;">+<span id="LC183" class="line" lang="haskell">           <span class="p">,</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">df</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">rule_lhs_args</span> <span class="p">)</span></span>

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<pre style="margin: 0;">+<span id="LC184" class="line" lang="haskell">           <span class="c1" style="color: #998; font-style: italic;">-- For this ASSERT see Note [DFunUnfoldings] in GHC.Core.Opt.Specialise</span></span>

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<pre style="margin: 0;"> <span id="LC185" class="line" lang="haskell">    <span class="n" style="color: #333;">mkDFunUnfolding</span> <span class="n" style="color: #333;">spec_bndrs</span> <span class="n" style="color: #333;">con</span> <span class="p">(</span><span class="n" style="color: #333;">map</span> <span class="n" style="color: #333;">spec_arg</span> <span class="n" style="color: #333;">args</span><span class="p">)</span></span>

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<pre style="margin: 0;">-<span id="LC183" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- There is a hard-to-check assumption here that the spec_app has</span></span>

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<pre style="margin: 0;">-<span id="LC184" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- enough applications to exactly saturate the old_bndrs</span></span>

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<pre style="margin: 0;"> <span id="LC186" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- For DFunUnfoldings we transform</span></span>

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<pre style="margin: 0;">-<span id="LC186" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">--       \o<span class="idiff left right">ld_bndr</span>s. MkD <op1> ... <opn></span></span>

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<pre style="margin: 0;">+<span id="LC187" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">--       \o<span class="idiff left right">b</span>s. MkD <op1> ... <opn></span></span>

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<pre style="margin: 0;"> <span id="LC188" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- to</span></span>

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<pre style="margin: 0;">-<span id="LC188" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">--       \new_bndrs. MkD (spec_app(\old_bndrs. <op1>)) ... ditto <opn></span></span>

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<pre style="margin: 0;">-<span id="LC189" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- The ASSERT checks the value part of that</span></span>

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<pre style="margin: 0;">+<span id="LC189" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">--       \sbs. MkD ((\obs. <op1>) spec_args) ... ditto <opn></span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC190" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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191

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<pre style="margin: 0;">-<span id="LC191" class="line" lang="haskell">    <span class="n" style="color: #333;">spec_arg</span> <span class="n" style="color: #333;">arg</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">simpleOptExpr</span> <span class="n" style="color: #333;">dflags</span> <span class="p">(</span><span class="n" style="color: #333;">spec_app</span> <span class="p">(</span><span class="n" style="color: #333;">mkLams</span> <span class="n" style="color: #333;">old_bndrs</span> <span class="n" style="color: #333;">arg</span><span class="p">))</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC191" class="line" lang="haskell">    <span class="n" style="color: #333;">spec_arg</span> <span class="n" style="color: #333;">arg</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">simpleOptExpr</span> <span class="n" style="color: #333;">dflags</span> <span class="o" style="font-weight: 600;">$</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC192" class="line" lang="haskell">                   <span class="n" style="color: #333;">spec_app</span> <span class="p">(</span><span class="n" style="color: #333;">mkLams</span> <span class="n" style="color: #333;">old_bndrs</span> <span class="n" style="color: #333;">arg</span><span class="p">)</span></span>

</pre>

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192

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<td class="diff-line-num new_line" data-linenumber="193" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

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<pre style="margin: 0;"> <span id="LC193" class="line" lang="haskell">                   <span class="c1" style="color: #998; font-style: italic;">-- The beta-redexes created by spec_app will be</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC194" class="line" lang="haskell">                   <span class="c1" style="color: #998; font-style: italic;">-- simplified away by simplOptExpr</span></span>

</pre>

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194

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<pre style="margin: 0;"> <span id="LC195" class="line" lang="haskell"></span>

</pre>

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<pre style="margin: 0;">-<span id="LC195" class="line" lang="haskell"><span class="n" style="color: #333;">specUnfolding</span> <span class="n" style="color: #333;">dflags</span> <span class="kr" style="font-weight: 600;"><span class="idiff left">_</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">spec_bndrs</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">spec_app</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">arity_decrease</span></span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC196" class="line" lang="haskell"><span class="n" style="color: #333;">specUnfolding</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;"><span class="idiff left">spec_bndrs</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">spec_app</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">rule_lhs_args</span></span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC197" class="line" lang="haskell">              <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CoreUnfolding</span> <span class="p">{</span> <span class="n" style="color: #333;">uf_src</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">src</span><span class="p">,</span> <span class="n" style="color: #333;">uf_tmpl</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">tmpl</span></span>

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<td class="diff-line-num new_line" data-linenumber="198" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

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<pre style="margin: 0;"> <span id="LC198" class="line" lang="haskell">                             <span class="p">,</span> <span class="n" style="color: #333;">uf_is_top</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">top_lvl</span></span>

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<pre style="margin: 0;"> <span id="LC199" class="line" lang="haskell">                             <span class="p">,</span> <span class="n" style="color: #333;">uf_guidance</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">old_guidance</span> <span class="p">})</span></span>

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<td class="diff-line-num new_line" data-linenumber="200" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

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<pre style="margin: 0;"> <span id="LC200" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isStableSource</span> <span class="n" style="color: #333;">src</span>  <span class="c1" style="color: #998; font-style: italic;">-- See Note [Specialising unfoldings]</span></span>

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<td class="diff-line-num new_line old" data-linenumber="201" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC200" class="line" lang="haskell"> <span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">UnfWhen</span> <span class="p">{</span> <span class="n" style="color: #333;">ug_arity</span>     <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">old_arity</span></span>

</pre>

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201

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<td class="diff-line-num new_line old" data-linenumber="201" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC201" class="line" lang="haskell"> <span class="idiff left">          </span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ug_unsat_ok</span></span><span class="idiff">  </span><span class="o" style="font-weight: 600;"><span class="idiff">=</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">unsat_ok</span></span></span>

</pre>

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<pre style="margin: 0;">-<span id="LC202" class="line" lang="haskell">           <span class="p"><span class="idiff left">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ug_boring_ok</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">=</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">boring_ok</span></span><span class="idiff"> </span><span class="p"><span class="idiff">}</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff"><-</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">old_guidance</span></span></span>

</pre>

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<pre style="margin: 0;">-<span id="LC203" class="line" lang="haskell"> <span class="o" style="font-weight: 600;"><span class="idiff left">=</span></span><span class="idiff"> </span><span class="kr" style="font-weight: 600;"><span class="idiff">let</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">guidance</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">=</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">UnfWhen</span></span><span class="idiff"> </span><span class="p"><span class="idiff">{</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ug_arity</span></span><span class="idiff">     </span><span class="o" style="font-weight: 600;"><span class="idiff">=</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">old_arity</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">arity_decreas</span>e</span></span>

</pre>

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<pre style="margin: 0;">-<span id="LC204" class="line" lang="haskell">   <span class="idiff left">                       </span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ug_unsat_ok</span></span><span class="idiff">  </span><span class="o" style="font-weight: 600;"><span class="idiff">=</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">unsat_ok</span></span></span>

</pre>

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<pre style="margin: 0;">-<span id="LC205" class="line" lang="haskell">              <span class="idiff left">            </span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ug_boring_ok</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">=</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">boring_ok</span></span><span class="idiff"> </span><span class="p"><span class="idiff right">}</span></span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="206" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

206

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<pre style="margin: 0;">-<span id="LC206" class="line" lang="haskell">       <span class="n" style="color: #333;"><span class="idiff left">new_tmpl</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">=</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">simpleOptExpr</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">dflags</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">mkLams</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">spec_bndrs</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">spec_app</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">tmpl</span></span><span class="p"><span class="idiff right">))</span></span></span>

</pre>

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<td class="diff-line-num new_line old" data-linenumber="201" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC207" class="line" lang="haskell">                   <span class="c1" style="color: #998; font-style: italic;"><span class="idiff left right">-- The beta-redexes created by spec_app will be</span></span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="208" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<td class="diff-line-num new_line old" data-linenumber="201" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC208" class="line" lang="haskell">   <span class="idiff left">                </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">-- simplified away by simplOptExpr</span></span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC201" class="line" lang="haskell"> <span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">UnfWhen</span> <span class="p">{</span> <span class="n" style="color: #333;">ug_arity</span>     <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">old_arity</span><span class="idiff left"> </span><span class="p"><span class="idiff">}</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff"><-</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">old_guidance</span></span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC202" class="line" lang="haskell"> <span class="o" style="font-weight: 600;"><span class="idiff left">=</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">mkCoreUnfolding</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">src</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">top_lvl</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">new_tmpl</span></span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="209" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="203" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<pre style="margin: 0;">+<span id="LC203" class="line" lang="haskell">           <span class="idiff left">        </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">old_guidance</span></span><span class="idiff"> </span><span class="p"><span class="idiff">{</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ug_arity</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">=</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">old_arity</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">arity_decrease</span></span><span class="idiff"> </span><span class="p"><span class="idiff right">})</span></span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="209" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="204" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<pre style="margin: 0;">+<span id="LC204" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;"><span class="idiff left right">wher</span>e</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="205" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<pre style="margin: 0;">+<span id="LC205" class="line" lang="haskell">   <span class="n" style="color: #333;"><span class="idiff left">new_tmpl</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">=</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">simpleOptExpr</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">dflags</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff right">$</span></span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="209" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="206" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<pre style="margin: 0;">+<span id="LC206" class="line" lang="haskell">              <span class="n" style="color: #333;"><span class="idiff left">mkLams</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">spec_bndrs</span></span><span class="idiff">    </span><span class="o" style="font-weight: 600;"><span class="idiff right">$</span></span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="209" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="207" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<pre style="margin: 0;">+<span id="LC207" class="line" lang="haskell">       <span class="idiff left">       </span><span class="n" style="color: #333;"><span class="idiff">spec_app</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">tmpl</span></span><span class="idiff">  </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">-- The beta-redexes created by spec_app</span></span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="209" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="208" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<pre style="margin: 0;">+<span id="LC208" class="line" lang="haskell">                   <span class="idiff left">          </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">-- will besimplified away by simplOptExpr</span></span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="209" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="209" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<pre style="margin: 0;">+<span id="LC209" class="line" lang="haskell">   <span class="n" style="color: #333;"><span class="idiff left">arity_decrease</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">=</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">count</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">isValArg</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">rule_lhs_args</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">count</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">isId</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">spec_bndrs</span></span></span>

</pre>

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209

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<td class="diff-line-num new_line" data-linenumber="210" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

210

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<pre style="margin: 0;"> <span id="LC210" class="line" lang="haskell"></span>

</pre>

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210

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<td class="diff-line-num new_line old" data-linenumber="211" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC210" class="line" lang="haskell">   <span class="kr" style="font-weight: 600;">in</span> <span class="n" style="color: #333;">mkCoreUnfolding</span> <span class="n" style="color: #333;">src</span> <span class="n" style="color: #333;">top_lvl</span> <span class="n" style="color: #333;">new_tmpl</span> <span class="n" style="color: #333;">guidance</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="211" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

211

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<td class="diff-line-num new_line" data-linenumber="211" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

211

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<pre style="margin: 0;"> <span id="LC211" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="212" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

212

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<td class="diff-line-num new_line old" data-linenumber="212" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC212" class="line" lang="haskell"><span class="n" style="color: #333;">specUnfolding</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;"><span class="idiff left">_</span></span><span class="idiff right"> </span><span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">noUnfolding</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="213" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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212

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<pre style="margin: 0;">+<span id="LC212" class="line" lang="haskell"><span class="n" style="color: #333;">specUnfolding</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">noUnfolding</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="213" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

213

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<td class="diff-line-num new_line" data-linenumber="213" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

213

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<pre style="margin: 0;"> <span id="LC213" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="214" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

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<td class="diff-line-num new_line" data-linenumber="214" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

214

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<pre style="margin: 0;"> <span id="LC214" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">{- Note [Specialising unfoldings]</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="215" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

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<td class="diff-line-num new_line" data-linenumber="215" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

215

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<pre style="margin: 0;"> <span id="LC215" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></span>

</pre>

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<br>

</li>

<li id="739e7c8c5f5618e9473d5a01d0a50b4c2aa7daa0">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f579acd1b0531fb19831b3bf3012263c4bb532df#739e7c8c5f5618e9473d5a01d0a50b4c2aa7daa0"><strong>compiler/deSugar/DsBinds.hs</strong></a>

<hr>

<table class="code white" style="font-family: monospace; font-size: 90%;" bgcolor="#fff" width="100%" cellpadding="0" cellspacing="0">

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="695" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="695" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -695,20 +695,19 @@ dsSpec mb_poly_rhs (dL->L loc (SpecPrag poly_id spec_co spec_inl))</td>

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695

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695

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<pre style="margin: 0;"> <span id="LC695" class="line" lang="haskell">         <span class="n" style="color: #333;">dflags</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getDynFlags</span></span>

</pre>

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<td class="diff-line-num new_line" data-linenumber="696" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

696

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<pre style="margin: 0;"> <span id="LC696" class="line" lang="haskell">       <span class="p">;</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">decomposeRuleLhs</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">spec_bndrs</span> <span class="n" style="color: #333;">ds_lhs</span> <span class="kr" style="font-weight: 600;">of</span> <span class="p">{</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="697" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

697

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<td class="diff-line-num new_line" data-linenumber="697" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

697

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<pre style="margin: 0;"> <span id="LC697" class="line" lang="haskell">           <span class="kt" style="color: #458; font-weight: 600;">Left</span> <span class="n" style="color: #333;">msg</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">warnDs</span> <span class="kt" style="color: #458; font-weight: 600;">NoReason</span> <span class="n" style="color: #333;">msg</span><span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span> <span class="p">}</span> <span class="p">;</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="698" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

698

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<td class="diff-line-num new_line old" data-linenumber="698" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC698" class="line" lang="haskell">           <span class="kt" style="color: #458; font-weight: 600;">Right</span> <span class="p">(</span><span class="n" style="color: #333;">rule_bndrs</span><span class="p">,</span> <span class="n" style="color: #333;">_fn</span><span class="p">,</span> <span class="n" style="color: #333;">args</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="699" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="698" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

698

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<pre style="margin: 0;">+<span id="LC698" class="line" lang="haskell">           <span class="kt" style="color: #458; font-weight: 600;">Right</span> <span class="p">(</span><span class="n" style="color: #333;">rule_bndrs</span><span class="p">,</span> <span class="n" style="color: #333;">_fn</span><span class="p">,</span> <span class="n" style="color: #333;"><span class="idiff left right">rule_lhs_</span>args</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="699" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

699

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<td class="diff-line-num new_line" data-linenumber="699" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

699

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<pre style="margin: 0;"> <span id="LC699" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="700" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

700

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<td class="diff-line-num new_line" data-linenumber="700" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

700

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<pre style="margin: 0;"> <span id="LC700" class="line" lang="haskell">       <span class="p">{</span> <span class="n" style="color: #333;">this_mod</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getModule</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="701" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

701

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701

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<pre style="margin: 0;"> <span id="LC701" class="line" lang="haskell">       <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">fn_unf</span>    <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">realIdUnfolding</span> <span class="n" style="color: #333;">poly_id</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="702" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

702

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<td class="diff-line-num new_line old" data-linenumber="702" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC702" class="line" lang="haskell">             <span class="n" style="color: #333;">spec_unf</span>  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">specUnfolding</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;"><span class="idiff left">poly_id</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">spec_bndrs</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">core_app</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">arity_decrease</span></span> <span class="n" style="color: #333;">fn_unf</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="703" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="702" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

702

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<pre style="margin: 0;">+<span id="LC702" class="line" lang="haskell">             <span class="n" style="color: #333;">spec_unf</span>  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">specUnfolding</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;"><span class="idiff left">spec_bndrs</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">core_app</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">rule_lhs_args</span></span> <span class="n" style="color: #333;">fn_unf</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="703" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

703

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<td class="diff-line-num new_line" data-linenumber="703" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

703

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<pre style="margin: 0;"> <span id="LC703" class="line" lang="haskell">             <span class="n" style="color: #333;">spec_id</span>   <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkLocalId</span> <span class="n" style="color: #333;">spec_name</span> <span class="n" style="color: #333;">spec_ty</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="704" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

704

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<td class="diff-line-num new_line" data-linenumber="704" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

704

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<pre style="margin: 0;"> <span id="LC704" class="line" lang="haskell">                            <span class="p">`</span><span class="n" style="color: #333;">setInlinePragma</span><span class="p">`</span> <span class="n" style="color: #333;">inl_prag</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="705" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

705

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<td class="diff-line-num new_line" data-linenumber="705" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

705

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<pre style="margin: 0;"> <span id="LC705" class="line" lang="haskell">                            <span class="p">`</span><span class="n" style="color: #333;">setIdUnfolding</span><span class="p">`</span>  <span class="n" style="color: #333;">spec_unf</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="706" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

706

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<td class="diff-line-num new_line old" data-linenumber="706" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC706" class="line" lang="haskell">             <span class="n" style="color: #333;">arity_decrease</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">count</span> <span class="n" style="color: #333;">isValArg</span> <span class="n" style="color: #333;">args</span> <span class="o" style="font-weight: 600;">-</span> <span class="n" style="color: #333;">count</span> <span class="n" style="color: #333;">isId</span> <span class="n" style="color: #333;">spec_bndrs</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="707" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

707

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<td class="diff-line-num new_line" data-linenumber="706" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

706

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<pre style="margin: 0;"> <span id="LC706" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="708" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

708

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<td class="diff-line-num new_line" data-linenumber="707" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

707

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<pre style="margin: 0;"> <span id="LC707" class="line" lang="haskell">       <span class="p">;</span> <span class="n" style="color: #333;">rule</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">dsMkUserRule</span> <span class="n" style="color: #333;">this_mod</span> <span class="n" style="color: #333;">is_local_id</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="709" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

709

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<td class="diff-line-num new_line" data-linenumber="708" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

708

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<pre style="margin: 0;"> <span id="LC708" class="line" lang="haskell">                        <span class="p">(</span><span class="n" style="color: #333;">mkFastString</span> <span class="p">(</span><span class="s" style="color: #d14;">"SPEC "</span> <span class="o" style="font-weight: 600;">++</span> <span class="n" style="color: #333;">showPpr</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">poly_name</span><span class="p">))</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="710" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

710

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<td class="diff-line-num new_line" data-linenumber="709" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

709

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<pre style="margin: 0;"> <span id="LC709" class="line" lang="haskell">                        <span class="n" style="color: #333;">rule_act</span> <span class="n" style="color: #333;">poly_name</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="711" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

711

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<td class="diff-line-num new_line old" data-linenumber="710" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC711" class="line" lang="haskell">                        <span class="n" style="color: #333;">rule_bndrs</span> <span class="n" style="color: #333;">args</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="712" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="710" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

710

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<pre style="margin: 0;">+<span id="LC710" class="line" lang="haskell">                        <span class="n" style="color: #333;">rule_bndrs</span> <span class="n" style="color: #333;"><span class="idiff left right">rule_lhs_</span>args</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="712" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

712

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<td class="diff-line-num new_line" data-linenumber="711" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

711

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<pre style="margin: 0;"> <span id="LC711" class="line" lang="haskell">                        <span class="p">(</span><span class="n" style="color: #333;">mkVarApps</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Var</span> <span class="n" style="color: #333;">spec_id</span><span class="p">)</span> <span class="n" style="color: #333;">spec_bndrs</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="713" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

713

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<td class="diff-line-num new_line" data-linenumber="712" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

712

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<pre style="margin: 0;"> <span id="LC712" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="714" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

714

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<td class="diff-line-num new_line" data-linenumber="713" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

713

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<pre style="margin: 0;"> <span id="LC713" class="line" lang="haskell">       <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">spec_rhs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkLams</span> <span class="n" style="color: #333;">spec_bndrs</span> <span class="p">(</span><span class="n" style="color: #333;">core_app</span> <span class="n" style="color: #333;">poly_rhs</span><span class="p">)</span></span>

</pre>

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<br>

</li>

<li id="8e5716cfebabf9b3b1774b148dca4e897301a054">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f579acd1b0531fb19831b3bf3012263c4bb532df#8e5716cfebabf9b3b1774b148dca4e897301a054"><strong>compiler/specialise/Specialise.hs</strong></a>

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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1236,6 +1236,7 @@ specCalls mb_mod env existing_rules calls_for_me fn rhs</td>

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<pre style="margin: 0;"> <span id="LC1236" class="line" lang="haskell">    <span class="n" style="color: #333;">inl_prag</span>  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">idInlinePragma</span> <span class="n" style="color: #333;">fn</span></span>

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<pre style="margin: 0;"> <span id="LC1237" class="line" lang="haskell">    <span class="n" style="color: #333;">inl_act</span>   <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">inlinePragmaActivation</span> <span class="n" style="color: #333;">inl_prag</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC1238" class="line" lang="haskell">    <span class="n" style="color: #333;">is_local</span>  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">isLocalId</span> <span class="n" style="color: #333;">fn</span></span>

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<pre style="margin: 0;">+<span id="LC1239" class="line" lang="haskell">    <span class="n" style="color: #333;">is_dfun</span>   <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">isDFunId</span> <span class="n" style="color: #333;">fn</span></span>

</pre>

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<td class="diff-line-num new_line" data-linenumber="1240" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1240

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<pre style="margin: 0;"> <span id="LC1240" class="line" lang="haskell"></span>

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<td class="diff-line-num new_line" data-linenumber="1241" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

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<pre style="margin: 0;"> <span id="LC1241" class="line" lang="haskell">        <span class="c1" style="color: #998; font-style: italic;">-- Figure out whether the function has an INLINE pragma</span></span>

</pre>

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<td class="diff-line-num new_line" data-linenumber="1242" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

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<pre style="margin: 0;"> <span id="LC1242" class="line" lang="haskell">        <span class="c1" style="color: #998; font-style: italic;">-- See Note [Inline specialisations]</span></span>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1258" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1259" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1258,22 +1259,34 @@ specCalls mb_mod env existing_rules calls_for_me fn rhs</td>

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<pre style="margin: 0;"> <span id="LC1259" class="line" lang="haskell">    <span class="n" style="color: #333;">spec_call</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">SpecInfo</span>                         <span class="c1" style="color: #998; font-style: italic;">-- Accumulating parameter</span></span>

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<pre style="margin: 0;"> <span id="LC1260" class="line" lang="haskell">              <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CallInfo</span>                         <span class="c1" style="color: #998; font-style: italic;">-- Call instance</span></span>

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<pre style="margin: 0;"> <span id="LC1261" class="line" lang="haskell">              <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">SpecM</span> <span class="kt" style="color: #458; font-weight: 600;">SpecInfo</span></span>

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<td class="diff-line-num new_line old" data-linenumber="1262" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1261" class="line" lang="haskell">    <span class="n" style="color: #333;">spec_call</span> <span class="n" style="color: #333;">spec_acc</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="n" style="color: #333;">rules_acc</span><span class="p">,</span> <span class="n" style="color: #333;">pairs_acc</span><span class="p">,</span> <span class="n" style="color: #333;">uds_acc</span><span class="p">)</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CI</span> <span class="p">{</span> <span class="n" style="color: #333;">ci_key</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">call_args</span> <span class="p">})</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC1262" class="line" lang="haskell">    <span class="n" style="color: #333;">spec_call</span> <span class="n" style="color: #333;">spec_acc</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="n" style="color: #333;">rules_acc</span><span class="p">,</span> <span class="n" style="color: #333;">pairs_acc</span><span class="p">,</span> <span class="n" style="color: #333;">uds_acc</span><span class="p">)</span> <span class="n" style="color: #333;"><span class="idiff left">_ci</span></span><span class="o" style="font-weight: 600;"><span class="idiff right">@</span></span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CI</span> <span class="p">{</span> <span class="n" style="color: #333;">ci_key</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">call_args</span> <span class="p">})</span></span>

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<pre style="margin: 0;"> <span id="LC1263" class="line" lang="haskell">      <span class="o" style="font-weight: 600;">=</span> <span class="c1" style="color: #998; font-style: italic;">-- See Note [Specialising Calls]</span></span>

</pre>

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<td class="diff-line-num new_line old" data-linenumber="1264" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1263" class="line" lang="haskell">        <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="p">(</span> <span class="n" style="color: #333;">useful</span><span class="p">,</span> <span class="n" style="color: #333;">rhs_env2</span><span class="p">,</span> <span class="n" style="color: #333;">leftover_bndrs</span></span>

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<pre style="margin: 0;">+<span id="LC1264" class="line" lang="haskell">        <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">all_call_args</span> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">is_dfun</span>   <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">call_args</span> <span class="o" style="font-weight: 600;">++</span> <span class="n" style="color: #333;">repeat</span> <span class="kt" style="color: #458; font-weight: 600;">UnspecArg</span></span>

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<pre style="margin: 0;">+<span id="LC1265" 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;">call_args</span></span>

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<td class="diff-line-num new new_line" data-linenumber="1266" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1266

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<pre style="margin: 0;">+<span id="LC1266" class="line" lang="haskell">                               <span class="c1" style="color: #998; font-style: italic;">-- See Note [Specialising DFuns]</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1264" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1267" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1267

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<pre style="margin: 0;">+<span id="LC1267" class="line" lang="haskell">           <span class="p">;</span> <span class="p">(</span> <span class="n" style="color: #333;">useful</span><span class="p">,</span> <span class="n" style="color: #333;">rhs_env2</span><span class="p">,</span> <span class="n" style="color: #333;">leftover_bndrs</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="1264" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1264

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<td class="diff-line-num new_line" data-linenumber="1268" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1268

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<pre style="margin: 0;"> <span id="LC1268" class="line" lang="haskell">             <span class="p">,</span> <span class="n" style="color: #333;">rule_bndrs</span><span class="p">,</span> <span class="n" style="color: #333;">rule_lhs_args</span></span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="1265" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1265

</td>

<td class="diff-line-num new_line old" data-linenumber="1269" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1265" class="line" lang="haskell">             <span class="p">,</span> <span class="n" style="color: #333;">spec_bndrs</span><span class="p">,</span> <span class="n" style="color: #333;">dx_binds</span><span class="p">,</span> <span class="n" style="color: #333;">spec_args</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">specHeader</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">rhs_bndrs</span> <span class="n" style="color: #333;">call_args</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="1266" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1269" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1269

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<pre style="margin: 0;">+<span id="LC1269" class="line" lang="haskell">             <span class="p">,</span> <span class="n" style="color: #333;">spec_bndrs1</span><span class="p">,</span> <span class="n" style="color: #333;">dx_binds</span><span class="p">,</span> <span class="n" style="color: #333;">spec_args</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">specHeader</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">rhs_bndrs</span> <span class="n" style="color: #333;">all_call_args</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1266" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1270" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1270

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<pre style="margin: 0;">+<span id="LC1270" class="line" lang="haskell"></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1266" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1271" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1271

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<pre style="margin: 0;">+<span id="LC1271" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--           ; pprTrace "spec_call" (vcat [ text "call info: " <+> ppr _ci</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1266" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1272" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1272

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<pre style="margin: 0;">+<span id="LC1272" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--                                        , text "useful:    " <+> ppr useful</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1266" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1273" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1273

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<pre style="margin: 0;">+<span id="LC1273" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--                                        , text "rule_bndrs:" <+> ppr rule_bndrs</span></span>

</pre>

</td>

</tr>

<tr class="line_holder new" id="" style="line-height: 1.6;">

<td class="diff-line-num new old_line" data-linenumber="1266" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1274" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1274

</td>

<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">

<pre style="margin: 0;">+<span id="LC1274" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--                                        , text "lhs_args:  " <+> ppr rule_lhs_args</span></span>

</pre>

</td>

</tr>

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<td class="diff-line-num new old_line" data-linenumber="1266" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1275" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1275

</td>

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<pre style="margin: 0;">+<span id="LC1275" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--                                        , text "spec_bndrs:" <+> ppr spec_bndrs1</span></span>

</pre>

</td>

</tr>

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<td class="diff-line-num new old_line" data-linenumber="1266" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1276" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1276

</td>

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<pre style="margin: 0;">+<span id="LC1276" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--                                        , text "spec_args: " <+> ppr spec_args</span></span>

</pre>

</td>

</tr>

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<td class="diff-line-num new old_line" data-linenumber="1266" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1277" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1277

</td>

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<pre style="margin: 0;">+<span id="LC1277" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--                                        , text "dx_binds:  " <+> ppr dx_binds</span></span>

</pre>

</td>

</tr>

<tr class="line_holder new" id="" style="line-height: 1.6;">

<td class="diff-line-num new old_line" data-linenumber="1266" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1278" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1278

</td>

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<pre style="margin: 0;">+<span id="LC1278" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--                                        , text "rhs_env2:  " <+> ppr (se_subst rhs_env2)</span></span>

</pre>

</td>

</tr>

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<td class="diff-line-num new old_line" data-linenumber="1266" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1279" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1279

</td>

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<pre style="margin: 0;">+<span id="LC1279" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--                                        , ppr dx_binds ]) $</span></span>

</pre>

</td>

</tr>

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<td class="diff-line-num new old_line" data-linenumber="1266" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1280" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1280

</td>

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<pre style="margin: 0;">+<span id="LC1280" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--             return ()</span></span>

</pre>

</td>

</tr>

<tr class="line_holder" id="" style="line-height: 1.6;">

<td class="diff-line-num old_line" data-linenumber="1266" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1266

</td>

<td class="diff-line-num new_line" data-linenumber="1281" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1281

</td>

<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC1281" class="line" lang="haskell"></span>

</pre>

</td>

</tr>

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<td class="diff-line-num old_line" data-linenumber="1267" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1267

</td>

<td class="diff-line-num new_line" data-linenumber="1282" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1282

</td>

<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC1282" class="line" lang="haskell">           <span class="p">;</span> <span class="n" style="color: #333;">dflags</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getDynFlags</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="1268" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1268

</td>

<td class="diff-line-num new_line" data-linenumber="1283" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1283

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<pre style="margin: 0;"> <span id="LC1283" class="line" lang="haskell">           <span class="p">;</span> <span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">not</span> <span class="n" style="color: #333;">useful</span>  <span class="c1" style="color: #998; font-style: italic;">-- No useful specialisation</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1269" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1269

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<td class="diff-line-num new_line" data-linenumber="1284" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1284

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<pre style="margin: 0;"> <span id="LC1284" class="line" lang="haskell">                <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">already_covered</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">rules_acc</span> <span class="n" style="color: #333;">rule_lhs_args</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1270" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1270

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<td class="diff-line-num new_line" data-linenumber="1285" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1285

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<pre style="margin: 0;"> <span id="LC1285" class="line" lang="haskell">             <span class="kr" style="font-weight: 600;">then</span> <span class="n" style="color: #333;">return</span> <span class="n" style="color: #333;">spec_acc</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1271" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1271

</td>

<td class="diff-line-num new_line old" data-linenumber="1286" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1271" class="line" lang="haskell">             <span class="kr" style="font-weight: 600;">else</span> <span class="c1" style="color: #998; font-style: italic;">-- pprTrace "spec_call" (vcat [ ppr _call_info, ppr fn, ppr rhs_dict_ids</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1272" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1272

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<td class="diff-line-num new_line old" data-linenumber="1286" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1272" class="line" lang="haskell">                  <span class="c1" style="color: #998; font-style: italic;">--                           , text "rhs_env2" <+> ppr (se_subst rhs_env2)</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1273" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1273

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<td class="diff-line-num new_line old" data-linenumber="1286" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1273" class="line" lang="haskell">                  <span class="c1" style="color: #998; font-style: italic;">--                           , ppr dx_binds ]) $</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="1274" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="1286" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1286

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<pre style="margin: 0;">+<span id="LC1286" class="line" lang="haskell">             <span class="kr" style="font-weight: 600;">else</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1274" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1274

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<td class="diff-line-num new_line" data-linenumber="1287" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1287

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<pre style="margin: 0;"> <span id="LC1287" class="line" lang="haskell">        <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="c1" style="color: #998; font-style: italic;">-- Run the specialiser on the specialised RHS</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1275" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1275

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<td class="diff-line-num new_line" data-linenumber="1288" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1288

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<pre style="margin: 0;"> <span id="LC1288" class="line" lang="haskell">             <span class="c1" style="color: #998; font-style: italic;">-- The "1" suffix is before we maybe add the void arg</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1276" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1276

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<td class="diff-line-num new_line old" data-linenumber="1289" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1276" class="line" lang="haskell">           <span class="p">;</span> <span class="p">(</span><span class="n" style="color: #333;">spec_rhs1</span><span class="p">,</span> <span class="n" style="color: #333;">rhs_uds</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">specLam</span> <span class="n" style="color: #333;">rhs_env2</span> <span class="p">(</span><span class="n" style="color: #333;">spec_bndrs</span> <span class="o" style="font-weight: 600;">++</span> <span class="n" style="color: #333;">leftover_bndrs</span><span class="p">)</span> <span class="n" style="color: #333;">rhs_body</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="1277" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="1289" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1289

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<pre style="margin: 0;">+<span id="LC1289" class="line" lang="haskell">           <span class="p">;</span> <span class="p">(</span><span class="n" style="color: #333;">spec_rhs1</span><span class="p">,</span> <span class="n" style="color: #333;">rhs_uds</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">specLam</span> <span class="n" style="color: #333;">rhs_env2</span> <span class="p">(</span><span class="n" style="color: #333;">spec_bndrs<span class="idiff left right">1</span></span> <span class="o" style="font-weight: 600;">++</span> <span class="n" style="color: #333;">leftover_bndrs</span><span class="p">)</span> <span class="n" style="color: #333;">rhs_body</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1277" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1277

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<td class="diff-line-num new_line" data-linenumber="1290" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1290

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<pre style="margin: 0;"> <span id="LC1290" class="line" lang="haskell">           <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">spec_fn_ty1</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">exprType</span> <span class="n" style="color: #333;">spec_rhs1</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="1278" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1278

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<td class="diff-line-num new_line" data-linenumber="1291" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1291

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<pre style="margin: 0;"> <span id="LC1291" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1279" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1279

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<td class="diff-line-num new_line" data-linenumber="1292" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1292

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<pre style="margin: 0;"> <span id="LC1292" class="line" lang="haskell">                 <span class="c1" style="color: #998; font-style: italic;">-- Maybe add a void arg to the specialised function,</span></span>

</pre>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1281" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1294" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1281,14 +1294,13 @@ specCalls mb_mod env existing_rules calls_for_me fn rhs</td>

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<td class="diff-line-num old_line" data-linenumber="1281" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1281

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<td class="diff-line-num new_line" data-linenumber="1294" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1294

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<pre style="margin: 0;"> <span id="LC1294" class="line" lang="haskell">                 <span class="c1" style="color: #998; font-style: italic;">-- See Note [Specialisations Must Be Lifted]</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1282" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1282

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<td class="diff-line-num new_line" data-linenumber="1295" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1295

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<pre style="margin: 0;"> <span id="LC1295" class="line" lang="haskell">                 <span class="c1" style="color: #998; font-style: italic;">-- C.f. GHC.Core.Op.WorkWrap.Lib.mkWorkerArgs</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1283" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1283

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<td class="diff-line-num new_line" data-linenumber="1296" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1296

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<pre style="margin: 0;"> <span id="LC1296" class="line" lang="haskell">                 <span class="n" style="color: #333;">add_void_arg</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">isUnliftedType</span> <span class="n" style="color: #333;">spec_fn_ty1</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">isJoinId</span> <span class="n" style="color: #333;">fn</span><span class="p">)</span></span>

</pre>

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1284

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<td class="diff-line-num new_line old" data-linenumber="1297" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1284" class="line" lang="haskell">                 <span class="p">(</span><span class="n" style="color: #333;">spec_rhs</span><span class="p">,</span> <span class="n" style="color: #333;">spec_fn_ty</span><span class="p">,</span> <span class="n" style="color: #333;">rule_rhs_args</span><span class="p">)</span></span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="1285" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1285

</td>

<td class="diff-line-num new_line old" data-linenumber="1297" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

</td>

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<pre style="margin: 0;">-<span id="LC1285" class="line" lang="haskell">                   <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">add_void_arg</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span> <span class="kt" style="color: #458; font-weight: 600;">Lam</span>        <span class="n" style="color: #333;">voidArgId</span>  <span class="n" style="color: #333;">spec_rhs1</span></span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="1286" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1286

</td>

<td class="diff-line-num new_line old" data-linenumber="1297" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

</td>

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<pre style="margin: 0;">-<span id="LC1286" class="line" lang="haskell">                                    <span class="p">,</span> <span class="n" style="color: #333;">mkVisFunTy</span> <span class="n" style="color: #333;">voidPrimTy</span> <span class="n" style="color: #333;">spec_fn_ty1</span></span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="1287" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1287

</td>

<td class="diff-line-num new_line old" data-linenumber="1297" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

</td>

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<pre style="margin: 0;">-<span id="LC1287" class="line" lang="haskell">                                    <span class="p">,</span> <span class="n" style="color: #333;">voidPrimId</span> <span class="o" style="font-weight: 600;">:</span> <span class="n" style="color: #333;">spec_bndrs</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1288" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1288

</td>

<td class="diff-line-num new_line old" data-linenumber="1297" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1288" class="line" lang="haskell">                   <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span>   <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">spec_rhs1</span><span class="p">,</span> <span class="n" style="color: #333;">spec_fn_ty1</span><span class="p">,</span> <span class="n" style="color: #333;">spec_bndrs</span><span class="p">)</span></span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="1289" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1289

</td>

<td class="diff-line-num new_line old" data-linenumber="1297" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1289" class="line" lang="haskell"></span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="1290" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1290

</td>

<td class="diff-line-num new_line old" data-linenumber="1297" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1290" class="line" lang="haskell">                 <span class="n" style="color: #333;">arity_decr</span>      <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">count</span> <span class="n" style="color: #333;">isValArg</span> <span class="n" style="color: #333;">rule_lhs_args</span> <span class="o" style="font-weight: 600;">-</span> <span class="n" style="color: #333;">count</span> <span class="n" style="color: #333;">isId</span> <span class="n" style="color: #333;">rule_rhs_args</span></span>

</pre>

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<tr class="line_holder old" id="" style="line-height: 1.6;">

<td class="diff-line-num old old_line" data-linenumber="1291" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1291

</td>

<td class="diff-line-num new_line old" data-linenumber="1297" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1291" class="line" lang="haskell">                 <span class="n" style="color: #333;">join_arity_decr</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">length</span> <span class="n" style="color: #333;">rule_lhs_args</span> <span class="o" style="font-weight: 600;">-</span> <span class="n" style="color: #333;">length</span> <span class="n" style="color: #333;">rule_rhs_args</span></span>

</pre>

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<tr class="line_holder new" id="" style="line-height: 1.6;">

<td class="diff-line-num new old_line" data-linenumber="1292" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1297" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1297

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<pre style="margin: 0;">+<span id="LC1297" class="line" lang="haskell">                 <span class="p">(</span><span class="n" style="color: #333;">spec_bndrs</span><span class="p">,</span> <span class="n" style="color: #333;">spec_rhs</span><span class="p">,</span> <span class="n" style="color: #333;">spec_fn_ty</span><span class="p">)</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1292" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1298" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1298

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<pre style="margin: 0;">+<span id="LC1298" class="line" lang="haskell">                   <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">add_void_arg</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span> <span class="n" style="color: #333;">voidPrimId</span> <span class="o" style="font-weight: 600;">:</span> <span class="n" style="color: #333;">spec_bndrs1</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="1292" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1299" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1299

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<pre style="margin: 0;">+<span id="LC1299" class="line" lang="haskell">                                    <span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Lam</span>        <span class="n" style="color: #333;">voidArgId</span>  <span class="n" style="color: #333;">spec_rhs1</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="1292" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1300" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1300

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<pre style="margin: 0;">+<span id="LC1300" class="line" lang="haskell">                                    <span class="p">,</span> <span class="n" style="color: #333;">mkVisFunTy</span> <span class="n" style="color: #333;">voidPrimTy</span> <span class="n" style="color: #333;">spec_fn_ty1</span><span class="p">)</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1292" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1301" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1301

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<pre style="margin: 0;">+<span id="LC1301" class="line" lang="haskell">                   <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span>   <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">spec_bndrs1</span><span class="p">,</span> <span class="n" style="color: #333;">spec_rhs1</span><span class="p">,</span> <span class="n" style="color: #333;">spec_fn_ty1</span><span class="p">)</span></span>

</pre>

</td>

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<tr class="line_holder new" id="" style="line-height: 1.6;">

<td class="diff-line-num new old_line" data-linenumber="1292" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1302" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1302

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<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">

<pre style="margin: 0;">+<span id="LC1302" class="line" lang="haskell"></span>

</pre>

</td>

</tr>

<tr class="line_holder new" id="" style="line-height: 1.6;">

<td class="diff-line-num new old_line" data-linenumber="1292" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1303" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1303

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<pre style="margin: 0;">+<span id="LC1303" class="line" lang="haskell">                 <span class="n" style="color: #333;">join_arity_decr</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">length</span> <span class="n" style="color: #333;">rule_lhs_args</span> <span class="o" style="font-weight: 600;">-</span> <span class="n" style="color: #333;">length</span> <span class="n" style="color: #333;">spec_bndrs</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="1292" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1292

</td>

<td class="diff-line-num new_line" data-linenumber="1304" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1304

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<pre style="margin: 0;"> <span id="LC1304" class="line" lang="haskell">                 <span class="n" style="color: #333;">spec_join_arity</span> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">orig_join_arity</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">isJoinId_maybe</span> <span class="n" style="color: #333;">fn</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="1293" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1293

</td>

<td class="diff-line-num new_line" data-linenumber="1305" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1305

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<pre style="margin: 0;"> <span id="LC1305" class="line" lang="haskell">                                 <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="n" style="color: #333;">orig_join_arity</span> <span class="o" style="font-weight: 600;">-</span> <span class="n" style="color: #333;">join_arity_decr</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1294" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1294

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<td class="diff-line-num new_line" data-linenumber="1306" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1306

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<pre style="margin: 0;"> <span id="LC1306" class="line" lang="haskell">                                 <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span></span>

</pre>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1323" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1335" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1323,7 +1335,7 @@ specCalls mb_mod env existing_rules calls_for_me fn rhs</td>

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<td class="diff-line-num old_line" data-linenumber="1323" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1323

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<td class="diff-line-num new_line" data-linenumber="1335" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1335

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<pre style="margin: 0;"> <span id="LC1335" class="line" lang="haskell">                                  <span class="p">(</span><span class="n" style="color: #333;">idName</span> <span class="n" style="color: #333;">fn</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1324" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1324

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<td class="diff-line-num new_line" data-linenumber="1336" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1336

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<pre style="margin: 0;"> <span id="LC1336" class="line" lang="haskell">                                  <span class="n" style="color: #333;">rule_bndrs</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1325" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1325

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<td class="diff-line-num new_line" data-linenumber="1337" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1337

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<pre style="margin: 0;"> <span id="LC1337" class="line" lang="haskell">                                  <span class="n" style="color: #333;">rule_lhs_args</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1326" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1326

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<td class="diff-line-num new_line old" data-linenumber="1338" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1326" class="line" lang="haskell">                                  <span class="p">(</span><span class="n" style="color: #333;">mkVarApps</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Var</span> <span class="n" style="color: #333;">spec_fn</span><span class="p">)</span> <span class="n" style="color: #333;"><span class="idiff left right">rule_rhs_arg</span>s</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="1327" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="1338" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1338

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<pre style="margin: 0;">+<span id="LC1338" class="line" lang="haskell">                                  <span class="p">(</span><span class="n" style="color: #333;">mkVarApps</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Var</span> <span class="n" style="color: #333;">spec_fn</span><span class="p">)</span> <span class="n" style="color: #333;"><span class="idiff left right">spec_bndr</span>s</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1327" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1327

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<td class="diff-line-num new_line" data-linenumber="1339" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1339

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<pre style="margin: 0;"> <span id="LC1339" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1328" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1328

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<td class="diff-line-num new_line" data-linenumber="1340" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1340

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<pre style="margin: 0;"> <span id="LC1340" class="line" lang="haskell">                <span class="n" style="color: #333;">spec_rule</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1329" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1329

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<td class="diff-line-num new_line" data-linenumber="1341" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1341

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<pre style="margin: 0;"> <span id="LC1341" class="line" lang="haskell">                  <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">isJoinId_maybe</span> <span class="n" style="color: #333;">fn</span> <span class="kr" style="font-weight: 600;">of</span></span>

</pre>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1346" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1358" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1346,15 +1358,15 @@ specCalls mb_mod env existing_rules calls_for_me fn rhs</td>

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<td class="diff-line-num old_line" data-linenumber="1346" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1346

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<td class="diff-line-num new_line" data-linenumber="1358" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1358

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<pre style="margin: 0;"> <span id="LC1358" class="line" lang="haskell">                  <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">inl_prag</span> <span class="p">{</span> <span class="n" style="color: #333;">inl_inline</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">NoUserInline</span> <span class="p">},</span> <span class="n" style="color: #333;">noUnfolding</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1347" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1347

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<td class="diff-line-num new_line" data-linenumber="1359" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1359

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<pre style="margin: 0;"> <span id="LC1359" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1348" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1348

</td>

<td class="diff-line-num new_line" data-linenumber="1360" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1360

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<pre style="margin: 0;"> <span id="LC1360" class="line" lang="haskell">                  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1349" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1349

</td>

<td class="diff-line-num new_line old" data-linenumber="1361" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1349" class="line" lang="haskell">                  <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">inl_prag</span><span class="p">,</span> <span class="n" style="color: #333;">specUnfolding</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">fn</span> <span class="n" style="color: #333;">spec_bndrs</span> <span class="n" style="color: #333;">spec_app</span> <span class="n" style="color: #333;">arity_decr</span> <span class="n" style="color: #333;">fn_unf</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1350" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1350

</td>

<td class="diff-line-num new_line old" data-linenumber="1361" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">

<pre style="margin: 0;">-<span id="LC1350" class="line" lang="haskell"></span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="1351" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1351

</td>

<td class="diff-line-num new_line old" data-linenumber="1361" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1351" class="line" lang="haskell">                <span class="n" style="color: #333;">spec_app</span> <span class="n" style="color: #333;">e</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">e</span> <span class="p">`</span><span class="n" style="color: #333;">mkApps</span><span class="p">`</span> <span class="n" style="color: #333;">spec_args</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1352" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1361" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1361

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<pre style="margin: 0;">+<span id="LC1361" class="line" lang="haskell">                  <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">inl_prag</span><span class="p">,</span> <span class="n" style="color: #333;">specUnfolding</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">spec_bndrs</span> <span class="p">(`</span><span class="n" style="color: #333;">mkApps</span><span class="p">`</span> <span class="n" style="color: #333;">spec_args</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="1352" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1362" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1362

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<pre style="margin: 0;">+<span id="LC1362" class="line" lang="haskell">                                             <span class="n" style="color: #333;">rule_lhs_args</span> <span class="n" style="color: #333;">fn_unf</span><span class="p">)</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="1352" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1352

</td>

<td class="diff-line-num new_line" data-linenumber="1363" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1363

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<pre style="margin: 0;"> <span id="LC1363" class="line" lang="haskell"></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="1353" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1353

</td>

<td class="diff-line-num new_line" data-linenumber="1364" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1364

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<pre style="margin: 0;"> <span id="LC1364" class="line" lang="haskell">                <span class="c1" style="color: #998; font-style: italic;">--------------------------------------</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="1354" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1354

</td>

<td class="diff-line-num new_line" data-linenumber="1365" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1365

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<pre style="margin: 0;"> <span id="LC1365" class="line" lang="haskell">                <span class="c1" style="color: #998; font-style: italic;">-- Adding arity information just propagates it a bit faster</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1355" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1355

</td>

<td class="diff-line-num new_line" data-linenumber="1366" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1366

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<pre style="margin: 0;"> <span id="LC1366" class="line" lang="haskell">                <span class="c1" style="color: #998; font-style: italic;">--      See Note [Arity decrease] in Simplify</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1356" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1356

</td>

<td class="diff-line-num new_line" data-linenumber="1367" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1367

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<pre style="margin: 0;"> <span id="LC1367" class="line" lang="haskell">                <span class="c1" style="color: #998; font-style: italic;">-- Copy InlinePragma information from the parent Id.</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1357" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1357

</td>

<td class="diff-line-num new_line" data-linenumber="1368" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1368

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<pre style="margin: 0;"> <span id="LC1368" class="line" lang="haskell">                <span class="c1" style="color: #998; font-style: italic;">-- So if f has INLINE[1] so does spec_fn</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="1358" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1369" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1369

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<pre style="margin: 0;">+<span id="LC1369" class="line" lang="haskell">                <span class="n" style="color: #333;">arity_decr</span>     <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">count</span> <span class="n" style="color: #333;">isValArg</span> <span class="n" style="color: #333;">rule_lhs_args</span> <span class="o" style="font-weight: 600;">-</span> <span class="n" style="color: #333;">count</span> <span class="n" style="color: #333;">isId</span> <span class="n" style="color: #333;">spec_bndrs</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1358" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1358

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<td class="diff-line-num new_line" data-linenumber="1370" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1370

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<pre style="margin: 0;"> <span id="LC1370" class="line" lang="haskell">                <span class="n" style="color: #333;">spec_f_w_arity</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">spec_fn</span> <span class="p">`</span><span class="n" style="color: #333;">setIdArity</span><span class="p">`</span>      <span class="n" style="color: #333;">max</span> <span class="mi" style="color: #099;">0</span> <span class="p">(</span><span class="n" style="color: #333;">fn_arity</span> <span class="o" style="font-weight: 600;">-</span> <span class="n" style="color: #333;">arity_decr</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1359" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1359

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<td class="diff-line-num new_line" data-linenumber="1371" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1371

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<pre style="margin: 0;"> <span id="LC1371" class="line" lang="haskell">                                         <span class="p">`</span><span class="n" style="color: #333;">setInlinePragma</span><span class="p">`</span> <span class="n" style="color: #333;">spec_inl_prag</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="1360" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1360

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<td class="diff-line-num new_line" data-linenumber="1372" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1372

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<pre style="margin: 0;"> <span id="LC1372" class="line" lang="haskell">                                         <span class="p">`</span><span class="n" style="color: #333;">setIdUnfolding</span><span class="p">`</span>  <span class="n" style="color: #333;">spec_unf</span></span>

</pre>

</td>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1372" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1384" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1372,8 +1384,19 @@ specCalls mb_mod env existing_rules calls_for_me fn rhs</td>

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<td class="diff-line-num old_line" data-linenumber="1372" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1372

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<td class="diff-line-num new_line" data-linenumber="1384" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1384

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<pre style="margin: 0;"> <span id="LC1384" class="line" lang="haskell">                    <span class="p">,</span> <span class="n" style="color: #333;">spec_uds</span>           <span class="p">`</span><span class="n" style="color: #333;">plusUDs</span><span class="p">`</span> <span class="n" style="color: #333;">uds_acc</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1373" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1373

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<td class="diff-line-num new_line" data-linenumber="1385" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1385

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<pre style="margin: 0;"> <span id="LC1385" class="line" lang="haskell">                    <span class="p">)</span> <span class="p">}</span> <span class="p">}</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="1374" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1374

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<td class="diff-line-num new_line" data-linenumber="1386" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1386

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<pre style="margin: 0;"> <span id="LC1386" class="line" lang="haskell"></span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="1375" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1375

</td>

<td class="diff-line-num new_line old" data-linenumber="1387" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1375" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">{- Note [Specialisation Must Preserve Sharing]</span></span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="1376" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

1376

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<td class="diff-line-num new_line old" data-linenumber="1387" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC1376" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1377" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1387" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1387

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<pre style="margin: 0;">+<span id="LC1387" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">{- Note [Specialising DFuns]</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1377" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1388" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1388

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<pre style="margin: 0;">+<span id="LC1388" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1377" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1389" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1389

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<pre style="margin: 0;">+<span id="LC1389" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">DFuns have a special sort of unfolding (DFunUnfolding), and these are</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1377" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1390" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1390

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<pre style="margin: 0;">+<span id="LC1390" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">hard to specialise a DFunUnfolding to give another DFunUnfolding</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1377" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1391" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1391

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<pre style="margin: 0;">+<span id="LC1391" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">unless the DFun is fully applied (#18120).  So, in the case of DFunIds</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1377" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1392" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1392

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<pre style="margin: 0;">+<span id="LC1392" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">we simply extend the CallKey with trailing UnspecArgs, so we'll</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1377" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1393" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1393

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<pre style="margin: 0;">+<span id="LC1393" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">generate a rule that completely saturates the DFun.</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1377" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1394" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1394

</td>

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<pre style="margin: 0;">+<span id="LC1394" class="line" lang="haskell"></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1377" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1395" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1395

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<pre style="margin: 0;">+<span id="LC1395" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">There is an ASSERT that checks this, in the DFunUnfolding case of</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1377" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1396" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1396

</td>

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<pre style="margin: 0;">+<span id="LC1396" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">GHC.Core.Unfold.specUnfolding.</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1377" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1397" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1397

</td>

<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">

<pre style="margin: 0;">+<span id="LC1397" class="line" lang="haskell"></span>

</pre>

</td>

</tr>

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<td class="diff-line-num new old_line" data-linenumber="1377" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1398" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1398

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<pre style="margin: 0;">+<span id="LC1398" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Note [Specialisation Must Preserve Sharing]</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="1377" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="1399" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

1399

</td>

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<pre style="margin: 0;">+<span id="LC1399" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="1377" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1377

</td>

<td class="diff-line-num new_line" data-linenumber="1400" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1400

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<pre style="margin: 0;"> <span id="LC1400" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Consider a function:</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="1378" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1378

</td>

<td class="diff-line-num new_line" data-linenumber="1401" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1401

</td>

<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC1401" class="line" lang="haskell"></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="1379" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1379

</td>

<td class="diff-line-num new_line" data-linenumber="1402" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1402

</td>

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<pre style="margin: 0;"> <span id="LC1402" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">    f :: forall a. Eq a => a -> blah</span></span>

</pre>

</td>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="2003" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="2026" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -2003,7 +2026,7 @@ isSpecDict _             = False</td>

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<td class="diff-line-num old_line" data-linenumber="2003" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2003

</td>

<td class="diff-line-num new_line" data-linenumber="2026" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2026

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<pre style="margin: 0;"> <span id="LC2026" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--      -- Specialised function helpers</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="2004" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2004

</td>

<td class="diff-line-num new_line" data-linenumber="2027" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2027

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<pre style="margin: 0;"> <span id="LC2027" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--    , [c, i, x]</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="2005" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2005

</td>

<td class="diff-line-num new_line" data-linenumber="2028" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2028

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<pre style="margin: 0;"> <span id="LC2028" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--    , [dShow1 = $dfShow dShowT2]</span></span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="2006" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

2006

</td>

<td class="diff-line-num new_line old" data-linenumber="2029" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

</td>

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<pre style="margin: 0;">-<span id="LC2006" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--    , [T1, T2, dEqT1, dShow1]</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="2007" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="2029" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

2029

</td>

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<pre style="margin: 0;">+<span id="LC2029" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--    , [T1, T2, <span class="idiff left right">c, i, </span>dEqT1, dShow1]</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="2007" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2007

</td>

<td class="diff-line-num new_line" data-linenumber="2030" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2030

</td>

<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC2030" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--    )</span></span>

</pre>

</td>

</tr>

<tr class="line_holder" id="" style="line-height: 1.6;">

<td class="diff-line-num old_line" data-linenumber="2008" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2008

</td>

<td class="diff-line-num new_line" data-linenumber="2031" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2031

</td>

<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC2031" class="line" lang="haskell"><span class="n" style="color: #333;">specHeader</span></span>

</pre>

</td>

</tr>

<tr class="line_holder" id="" style="line-height: 1.6;">

<td class="diff-line-num old_line" data-linenumber="2009" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2009

</td>

<td class="diff-line-num new_line" data-linenumber="2032" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2032

</td>

<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC2032" class="line" lang="haskell">     <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">SpecEnv</span></span>

</pre>

</td>

</tr>

<tr class="line_holder match" id="" style="line-height: 1.6;">

<td class="diff-line-num unfold js-unfold old_line" data-linenumber="2020" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="2043" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -2020,12 +2043,13 @@ specHeader</td>

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<td class="diff-line-num old_line" data-linenumber="2020" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2020

</td>

<td class="diff-line-num new_line" data-linenumber="2043" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2043

</td>

<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC2043" class="line" lang="haskell"></span>

</pre>

</td>

</tr>

<tr class="line_holder" id="" style="line-height: 1.6;">

<td class="diff-line-num old_line" data-linenumber="2021" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2021

</td>

<td class="diff-line-num new_line" data-linenumber="2044" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2044

</td>

<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC2044" class="line" lang="haskell">                <span class="c1" style="color: #998; font-style: italic;">-- RULE helpers</span></span>

</pre>

</td>

</tr>

<tr class="line_holder" id="" style="line-height: 1.6;">

<td class="diff-line-num old_line" data-linenumber="2022" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2022

</td>

<td class="diff-line-num new_line" data-linenumber="2045" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2045

</td>

<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC2045" class="line" lang="haskell">              <span class="p">,</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">OutBndr</span><span class="p">]</span>    <span class="c1" style="color: #998; font-style: italic;">-- Binders for the RULE</span></span>

</pre>

</td>

</tr>

<tr class="line_holder old" id="" style="line-height: 1.6;">

<td class="diff-line-num old old_line" data-linenumber="2023" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

2023

</td>

<td class="diff-line-num new_line old" data-linenumber="2046" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

</td>

<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">

<pre style="margin: 0;">-<span id="LC2023" class="line" lang="haskell">              <span class="p">,</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">CoreArg</span></span><span class="p">]</span>    <span class="c1" style="color: #998; font-style: italic;">-- Args for the LHS of the rule</span></span>

</pre>

</td>

</tr>

<tr class="line_holder new" id="" style="line-height: 1.6;">

<td class="diff-line-num new old_line" data-linenumber="2024" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="2046" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

2046

</td>

<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">

<pre style="margin: 0;">+<span id="LC2046" class="line" lang="haskell">              <span class="p">,</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">OutExpr</span></span><span class="p">]</span>    <span class="c1" style="color: #998; font-style: italic;">-- Args for the LHS of the rule</span></span>

</pre>

</td>

</tr>

<tr class="line_holder" id="" style="line-height: 1.6;">

<td class="diff-line-num old_line" data-linenumber="2024" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2024

</td>

<td class="diff-line-num new_line" data-linenumber="2047" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2047

</td>

<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC2047" class="line" lang="haskell"></span>

</pre>

</td>

</tr>

<tr class="line_holder" id="" style="line-height: 1.6;">

<td class="diff-line-num old_line" data-linenumber="2025" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2025

</td>

<td class="diff-line-num new_line" data-linenumber="2048" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2048

</td>

<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC2048" class="line" lang="haskell">                <span class="c1" style="color: #998; font-style: italic;">-- Specialised function helpers</span></span>

</pre>

</td>

</tr>

<tr class="line_holder" id="" style="line-height: 1.6;">

<td class="diff-line-num old_line" data-linenumber="2026" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2026

</td>

<td class="diff-line-num new_line" data-linenumber="2049" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2049

</td>

<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC2049" class="line" lang="haskell">              <span class="p">,</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">OutBndr</span><span class="p">]</span>    <span class="c1" style="color: #998; font-style: italic;">-- Binders for $sf</span></span>

</pre>

</td>

</tr>

<tr class="line_holder" id="" style="line-height: 1.6;">

<td class="diff-line-num old_line" data-linenumber="2027" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2027

</td>

<td class="diff-line-num new_line" data-linenumber="2050" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2050

</td>

<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC2050" class="line" lang="haskell">              <span class="p">,</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">DictBind</span><span class="p">]</span>   <span class="c1" style="color: #998; font-style: italic;">-- Auxiliary dictionary bindings</span></span>

</pre>

</td>

</tr>

<tr class="line_holder" id="" style="line-height: 1.6;">

<td class="diff-line-num old_line" data-linenumber="2028" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2028

</td>

<td class="diff-line-num new_line" data-linenumber="2051" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2051

</td>

<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC2051" class="line" lang="haskell">              <span class="p">,</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">OutExpr</span><span class="p">]</span>    <span class="c1" style="color: #998; font-style: italic;">-- Specialised arguments for unfolding</span></span>

</pre>

</td>

</tr>

<tr class="line_holder new" id="" style="line-height: 1.6;">

<td class="diff-line-num new old_line" data-linenumber="2029" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

</td>

<td class="diff-line-num new new_line" data-linenumber="2052" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

2052

</td>

<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">

<pre style="margin: 0;">+<span id="LC2052" class="line" lang="haskell">                             <span class="c1" style="color: #998; font-style: italic;">-- Same length as "args for LHS of rule"</span></span>

</pre>

</td>

</tr>

<tr class="line_holder" id="" style="line-height: 1.6;">

<td class="diff-line-num old_line" data-linenumber="2029" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2029

</td>

<td class="diff-line-num new_line" data-linenumber="2053" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2053

</td>

<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC2053" class="line" lang="haskell">              <span class="p">)</span></span>

</pre>

</td>

</tr>

<tr class="line_holder" id="" style="line-height: 1.6;">

<td class="diff-line-num old_line" data-linenumber="2030" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2030

</td>

<td class="diff-line-num new_line" data-linenumber="2054" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2054

</td>

<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC2054" class="line" lang="haskell"></span>

</pre>

</td>

</tr>

<tr class="line_holder" id="" style="line-height: 1.6;">

<td class="diff-line-num old_line" data-linenumber="2031" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2031

</td>

<td class="diff-line-num new_line" data-linenumber="2055" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

2055

</td>

<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC2055" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- We want to specialise on type 'T1', and so we must construct a substitution</span></span>

</pre>

</td>

</tr>

</table>

<br>

</li>

<li id="341aef35ac370771edf59ec6b9fbb31507fa6f18">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f579acd1b0531fb19831b3bf3012263c4bb532df#341aef35ac370771edf59ec6b9fbb31507fa6f18"><strong>compiler/typecheck/TcSigs.hs</strong></a>

<hr>

<table class="code white" style="font-family: monospace; font-size: 90%;" bgcolor="#fff" width="100%" cellpadding="0" cellspacing="0">

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="638" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="638" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -638,7 +638,6 @@ to connect the two, something like</td>

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<td class="diff-line-num old_line" data-linenumber="638" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

638

</td>

<td class="diff-line-num new_line" data-linenumber="638" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

638

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<pre style="margin: 0;"> <span id="LC638" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">This wrapper is put in the TcSpecPrag, in the ABExport record of</span></span>

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<pre style="margin: 0;"> <span id="LC639" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">the AbsBinds.</span></span>

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<pre style="margin: 0;"> <span id="LC640" class="line" lang="haskell"></span>

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<pre style="margin: 0;">-<span id="LC641" class="line" lang="haskell"></span>

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<pre style="margin: 0;"> <span id="LC641" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">        f :: (Eq a, Ix b) => a -> b -> Bool</span></span>

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<pre style="margin: 0;"> <span id="LC642" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">        {-# SPECIALISE f :: (Ix p, Ix q) => Int -> (p,q) -> Bool #-}</span></span>

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<pre style="margin: 0;"> <span id="LC643" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">        f = <poly_rhs></span></span>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="666" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -666,8 +665,6 @@ Note that</td>

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<pre style="margin: 0;"> <span id="LC665" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">  * The RHS of f_spec, <poly_rhs> has a *copy* of 'binds', so that it</span></span>

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<pre style="margin: 0;"> <span id="LC666" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">    can fully specialise it.</span></span>

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<pre style="margin: 0;"> <span id="LC667" class="line" lang="haskell"></span>

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<pre style="margin: 0;">-<span id="LC669" class="line" lang="haskell"></span>

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<pre style="margin: 0;">-<span id="LC670" class="line" lang="haskell"></span>

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<pre style="margin: 0;"> <span id="LC668" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">From the TcSpecPrag, in DsBinds we generate a binding for f_spec and a RULE:</span></span>

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<pre style="margin: 0;"> <span id="LC669" class="line" lang="haskell"></span>

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<pre style="margin: 0;"> <span id="LC670" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">   f_spec :: Int -> b -> Int</span></span>

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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="703" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

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<pre style="margin: 0;"> <span id="LC703" class="line" lang="haskell"></span>

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<pre style="margin: 0;"> <span id="LC704" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">  So we simply do this:</span></span>

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<pre style="margin: 0;"> <span id="LC705" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">    - Generate a constraint to check that the specialised type (after</span></span>

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<pre style="margin: 0;">-<span id="LC709" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">      skolemis<span class="idiff left right">e</span>ation) is equal to the instantiated function type.</span></span>

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<pre style="margin: 0;">+<span id="LC706" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">      skolemisation) is equal to the instantiated function type.</span></span>

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710

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707

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<pre style="margin: 0;"> <span id="LC707" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">    - But *discard* the evidence (coercion) for that constraint,</span></span>

</pre>

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711

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708

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<pre style="margin: 0;"> <span id="LC708" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">      so that we ultimately generate the simpler code</span></span>

</pre>

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712

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709

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<pre style="margin: 0;"> <span id="LC709" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">          f_spec :: Int -> F Int</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="713" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

713

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710

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<pre style="margin: 0;"> <span id="LC710" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">          f_spec = <f rhs> Int dNumInt</span></span>

</pre>

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714

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711

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<pre style="margin: 0;"> <span id="LC711" class="line" lang="haskell"></span>

</pre>

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715

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712

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<pre style="margin: 0;"> <span id="LC712" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">          RULE: forall d. f Int d = f_spec</span></span>

</pre>

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716

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<pre style="margin: 0;">-<span id="LC716" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">      You can see this discarding happening in</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC713" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">      You can see this discarding happening in<span class="idiff left right"> tcSpecPrag</span></span></span>

</pre>

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717

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714

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<pre style="margin: 0;"> <span id="LC714" class="line" lang="haskell"></span>

</pre>

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718

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<pre style="margin: 0;"> <span id="LC715" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">3. Note that the HsWrapper can transform *any* function with the right</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="719" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

719

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716

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<pre style="margin: 0;"> <span id="LC716" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">   type prefix</span></span>

</pre>

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<br>

</li>

<li id="05aba2c695e8e684f6f1a4a5c10de5a19175ceea">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f579acd1b0531fb19831b3bf3012263c4bb532df#05aba2c695e8e684f6f1a4a5c10de5a19175ceea"><strong>testsuite/tests/simplCore/should_compile/T18120.hs</strong></a>

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1

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<pre style="margin: 0;">+<span id="LC1" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE ConstraintKinds #-}</span></span>

</pre>

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2

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<pre style="margin: 0;">+<span id="LC2" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE DataKinds #-}</span></span>

</pre>

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3

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<pre style="margin: 0;">+<span id="LC3" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE FlexibleContexts #-}</span></span>

</pre>

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4

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<pre style="margin: 0;">+<span id="LC4" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE FlexibleInstances #-}</span></span>

</pre>

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5

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<pre style="margin: 0;">+<span id="LC5" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE MultiParamTypeClasses #-}</span></span>

</pre>

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6

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<pre style="margin: 0;">+<span id="LC6" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE PolyKinds #-}</span></span>

</pre>

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7

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<pre style="margin: 0;">+<span id="LC7" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE TypeFamilies #-}</span></span>

</pre>

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8

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<pre style="margin: 0;">+<span id="LC8" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE TypeOperators #-}</span></span>

</pre>

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9

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<pre style="margin: 0;">+<span id="LC9" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE UndecidableInstances #-}</span></span>

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<pre style="margin: 0;">+<span id="LC10" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE UndecidableSuperClasses #-}</span></span>

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<pre style="margin: 0;">+<span id="LC11" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">module</span> <span class="nn" style="color: #555;">Bug</span> <span class="kr" style="font-weight: 600;">where</span></span>

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<pre style="margin: 0;">+<span id="LC12" class="line" lang="haskell"></span>

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<pre style="margin: 0;">+<span id="LC13" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Data.Kind</span></span>

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<pre style="margin: 0;">+<span id="LC14" class="line" lang="haskell"></span>

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<pre style="margin: 0;">+<span id="LC15" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="n" style="color: #333;">family</span></span>

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<pre style="margin: 0;">+<span id="LC16" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">AllF</span> <span class="p">(</span><span class="n" style="color: #333;">c</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">k</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Constraint</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">xs</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="n" style="color: #333;">k</span><span class="p">])</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Constraint</span> <span class="kr" style="font-weight: 600;">where</span></span>

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<pre style="margin: 0;">+<span id="LC17" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">AllF</span> <span class="n" style="color: #333;">_c</span> <span class="sc" style="color: #d14;">'[</span><span class="err" style="color: #a61717; background-color: #e3d2d2;">]</span>       <span class="o" style="font-weight: 600;">=</span> <span class="nb" style="color: #0086b3;">()</span></span>

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<pre style="margin: 0;">+<span id="LC18" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">AllF</span>  <span class="n" style="color: #333;">c</span> <span class="p">(</span><span class="n" style="color: #333;">x</span> <span class="sc" style="color: #d14;">':</span><span class="err" style="color: #a61717; background-color: #e3d2d2;"> </span><span class="n" style="color: #333;">xs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">c</span> <span class="n" style="color: #333;">x</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">All</span> <span class="n" style="color: #333;">c</span> <span class="n" style="color: #333;">xs</span><span class="p">)</span></span>

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<pre style="margin: 0;">+<span id="LC19" class="line" lang="haskell"></span>

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<pre style="margin: 0;">+<span id="LC20" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">class</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AllF</span> <span class="n" style="color: #333;">c</span> <span class="n" style="color: #333;">xs</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">SListI</span> <span class="n" style="color: #333;">xs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=></span> <span class="kt" style="color: #458; font-weight: 600;">All</span> <span class="p">(</span><span class="n" style="color: #333;">c</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">k</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Constraint</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">xs</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="n" style="color: #333;">k</span><span class="p">])</span> <span class="kr" style="font-weight: 600;">where</span></span>

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<pre style="margin: 0;">+<span id="LC21" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">All</span> <span class="n" style="color: #333;">c</span> <span class="sc" style="color: #d14;">'[</span><span class="err" style="color: #a61717; background-color: #e3d2d2;">]</span> <span class="kr" style="font-weight: 600;">where</span></span>

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<pre style="margin: 0;">+<span id="LC22" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">instance</span> <span class="p">(</span><span class="n" style="color: #333;">c</span> <span class="n" style="color: #333;">x</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">All</span> <span class="n" style="color: #333;">c</span> <span class="n" style="color: #333;">xs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=></span> <span class="kt" style="color: #458; font-weight: 600;">All</span> <span class="n" style="color: #333;">c</span> <span class="p">(</span><span class="n" style="color: #333;">x</span> <span class="sc" style="color: #d14;">':</span><span class="err" style="color: #a61717; background-color: #e3d2d2;"> </span><span class="n" style="color: #333;">xs</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">where</span></span>

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<pre style="margin: 0;">+<span id="LC23" class="line" lang="haskell"></span>

</pre>

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<pre style="margin: 0;">+<span id="LC24" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">class</span> <span class="kt" style="color: #458; font-weight: 600;">Top</span> <span class="n" style="color: #333;">x</span></span>

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<pre style="margin: 0;">+<span id="LC25" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Top</span> <span class="n" style="color: #333;">x</span></span>

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26

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<pre style="margin: 0;">+<span id="LC26" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="27" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

27

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<pre style="margin: 0;">+<span id="LC27" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kt" style="color: #458; font-weight: 600;">SListI</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">All</span> <span class="kt" style="color: #458; font-weight: 600;">Top</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="28" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

28

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<pre style="margin: 0;">+<span id="LC28" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="29" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

29

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<pre style="margin: 0;">+<span id="LC29" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">class</span> <span class="kt" style="color: #458; font-weight: 600;">All</span> <span class="kt" style="color: #458; font-weight: 600;">SListI</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Code</span> <span class="n" style="color: #333;">a</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=></span> <span class="kt" style="color: #458; font-weight: 600;">Generic</span> <span class="p">(</span><span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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</td>

<td class="diff-line-num new new_line" data-linenumber="30" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

30

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<pre style="margin: 0;">+<span id="LC30" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">type</span> <span class="kt" style="color: #458; font-weight: 600;">Code</span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[[</span><span class="kt" style="color: #458; font-weight: 600;">Type</span><span class="p">]]</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="31" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

31

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<pre style="margin: 0;">+<span id="LC31" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="32" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

32

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<pre style="margin: 0;">+<span id="LC32" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">T</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">MkT</span> <span class="kt" style="color: #458; font-weight: 600;">Int</span></span>

</pre>

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</td>

<td class="diff-line-num new new_line" data-linenumber="33" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

33

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<pre style="margin: 0;">+<span id="LC33" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Generic</span> <span class="kt" style="color: #458; font-weight: 600;">T</span> <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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</td>

<td class="diff-line-num new new_line" data-linenumber="34" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

34

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<pre style="margin: 0;">+<span id="LC34" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">type</span> <span class="kt" style="color: #458; font-weight: 600;">Code</span> <span class="kt" style="color: #458; font-weight: 600;">T</span> <span class="o" style="font-weight: 600;">=</span> <span class="sc" style="color: #d14;">'[</span><span class="err" style="color: #a61717; background-color: #e3d2d2;"> </span><span class="sc" style="color: #d14;">'[</span><span class="err" style="color: #a61717; background-color: #e3d2d2;">I</span><span class="n" style="color: #333;">nt</span><span class="p">]</span> <span class="p">]</span></span></pre>

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<br>

</li>

<li id="fc07c260b75644727a8cdc1af5c861a44d4bfb5e">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f579acd1b0531fb19831b3bf3012263c4bb532df#fc07c260b75644727a8cdc1af5c861a44d4bfb5e"><strong>testsuite/tests/simplCore/should_compile/all.T</strong></a>

<hr>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="323" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="323" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -323,3 +323,4 @@ test('T17966',</td>

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323

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323

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<pre style="margin: 0;"> <span id="LC323" class="line" lang="perl">     <span class="nv" style="color: #008080;">makefile_test</span><span class="p">,</span> <span class="p">['</span><span class="s1" style="color: #d14;">T17966</span><span class="p">'])</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="324" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

324

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<td class="diff-line-num new_line" data-linenumber="324" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

324

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<pre style="margin: 0;"> <span id="LC324" class="line" lang="perl"><span class="c1" style="color: #998; font-style: italic;"># NB: T17810: -fspecialise-aggressively</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="325" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

325

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<td class="diff-line-num new_line" data-linenumber="325" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

325

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<pre style="margin: 0;"> <span id="LC325" class="line" lang="perl"><span class="nv" style="color: #008080;">test</span><span class="p">('</span><span class="s1" style="color: #d14;">T17810</span><span class="p">',</span> <span class="nv" style="color: #008080;">normal</span><span class="p">,</span> <span class="nv" style="color: #008080;">multimod_compile</span><span class="p">,</span> <span class="p">['</span><span class="s1" style="color: #d14;">T17810</span><span class="p">',</span> <span class="p">'</span><span class="s1" style="color: #d14;">-fspecialise-aggressively -dcore-lint -O -v0</span><span class="p">'])</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="326" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

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<td class="diff-line-num new new_line" data-linenumber="326" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">

326

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<pre style="margin: 0;">+<span id="LC326" class="line" lang="perl"><span class="nv" style="color: #008080;">test</span><span class="p">('</span><span class="s1" style="color: #d14;">T18120</span><span class="p">',</span> <span class="nv" style="color: #008080;">normal</span><span class="p">,</span> <span class="nv" style="color: #008080;">compile</span><span class="p">,</span> <span class="p">['</span><span class="s1" style="color: #d14;">-dcore-lint -O</span><span class="p">'])</span></span></pre>

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