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<h3>

Sebastian Graf pushed to branch wip/fix-arity-anal

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/a6dc4633905c3f51a8d2baac9043a03db2581b7a">a6dc4633</a></strong>

<div>

<span>by Sebastian Graf</span>

<i>at 2020-10-09T11:01:16+02:00</i>

</div>

<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Arity: Refactor fixed-point iteration in GHC.Core.Opt.Arity

Arity analysis used to propagate optimistic arity types during

fixed-point interation through the `ArityEnv`'s `ae_cheap_fun` field,

which is like `GHC.Core.Utils.exprIsCheap`, but also considers the

current iteration's optimistic arity, for the binder in question only.

In #18793, we have seen that this is a problematic design, because it

doesn't allow us to look through PAP bindings of that binder.

Hence this patch refactors to a more traditional form with an explicit

signature environment, in which we record the optimistic `ArityType` of

the binder in question (and at the moment is the *only* binder that is

recorded in the arity environment).

</pre>

</li>

</ul>

<h4>2 changed files:</h4>

<ul>

<li class="file-stats">

<a href="#c3967bb9d3e8f5aae2dd111b5a335b48c21c1999">

compiler/GHC/Core/Opt/Arity.hs

</a>

</li>

<li class="file-stats">

<a href="#5f4939320986b719243f5983eff02c3e05a0978d">

testsuite/tests/simplCore/should_compile/T18231.stderr

</a>

</li>

</ul>

<h4>Changes:</h4>

<li id="c3967bb9d3e8f5aae2dd111b5a335b48c21c1999">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a6dc4633905c3f51a8d2baac9043a03db2581b7a#c3967bb9d3e8f5aae2dd111b5a335b48c21c1999"><strong>compiler/GHC/Core/Opt/Arity.hs</strong></a>

<hr>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="174" 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="174" 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">@@ -174,13 +174,10 @@ exprBotStrictness_maybe :: CoreExpr -> Maybe (Arity, StrictSig)</td>

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<td class="diff-line-num old_line" data-linenumber="174" 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">

174

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<pre style="margin: 0;"> <span id="LC174" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- and gives them a suitable strictness signatures.  It's used during</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC175" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- float-out</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="176" 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="LC176" class="line" lang="haskell"><span class="n" style="color: #333;">exprBotStrictness_maybe</span> <span class="n" style="color: #333;">e</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="177" 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="LC177" 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;">getBotArity</span> <span class="p">(</span><span class="n" style="color: #333;">arityType</span> <span class="n" style="color: #333;"><span class="idiff left right">e</span>nv</span> <span class="n" style="color: #333;">e</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">of</span></span>

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<pre style="margin: 0;">+<span id="LC177" 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;">getBotArity</span> <span class="p">(</span><span class="n" style="color: #333;">arityType</span> <span class="n" style="color: #333;"><span class="idiff left right">botStrictnessArityE</span>nv</span> <span class="n" style="color: #333;">e</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">of</span></span>

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<pre style="margin: 0;"> <span id="LC178" class="line" lang="haskell">        <span class="kt" style="color: #458; font-weight: 600;">Nothing</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span></span>

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<pre style="margin: 0;"> <span id="LC179" class="line" lang="haskell">        <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">ar</span> <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;">ar</span><span class="p">,</span> <span class="n" style="color: #333;">sig</span> <span class="n" style="color: #333;">ar</span><span class="p">)</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC180" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">where</span></span>

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<pre style="margin: 0;">-<span id="LC181" class="line" lang="haskell">    <span class="n" style="color: #333;">env</span>    <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">AE</span> <span class="p">{</span> <span class="n" style="color: #333;">ae_ped_bot</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">True</span></span>

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<pre style="margin: 0;">-<span id="LC182" class="line" lang="haskell">                <span class="p">,</span> <span class="n" style="color: #333;">ae_cheap_fn</span> <span class="o" style="font-weight: 600;">=</span> <span class="nf" style="color: #900; font-weight: 600;">\</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">False</span></span>

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<pre style="margin: 0;">-<span id="LC183" class="line" lang="haskell">                <span class="p">,</span> <span class="n" style="color: #333;">ae_joins</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">emptyVarSet</span> <span class="p">}</span></span>

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<pre style="margin: 0;"> <span id="LC181" class="line" lang="haskell">    <span class="n" style="color: #333;">sig</span> <span class="n" style="color: #333;">ar</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkClosedStrictSig</span> <span class="p">(</span><span class="n" style="color: #333;">replicate</span> <span class="n" style="color: #333;">ar</span> <span class="n" style="color: #333;">topDmd</span><span class="p">)</span> <span class="n" style="color: #333;">botDiv</span></span>

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<pre style="margin: 0;"> <span id="LC182" class="line" lang="haskell"></span>

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<pre style="margin: 0;"> <span id="LC183" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">{-</span></span>

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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -551,34 +548,18 @@ maxWithArity at@(ATop oss) ar</td>

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<pre style="margin: 0;"> <span id="LC548" class="line" lang="haskell"><span class="n" style="color: #333;">vanillaArityType</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">ArityType</span></span>

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<pre style="margin: 0;"> <span id="LC549" class="line" lang="haskell"><span class="n" style="color: #333;">vanillaArityType</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">ATop</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span>      <span class="c1" style="color: #998; font-style: italic;">-- Totally uninformative</span></span>

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<pre style="margin: 0;"> <span id="LC550" class="line" lang="haskell"></span>

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<pre style="margin: 0;">-<span id="LC554" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">^</span> The Arity returned is the number of value args the</span></span>

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<pre style="margin: 0;">+<span id="LC551" class="line" lang="haskell"><span class="cd">-- <span class="idiff left right">|</span> The Arity returned is the number of value args the</span></span>

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<pre style="margin: 0;"> <span id="LC552" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- expression can be applied to without doing much work</span></span>

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<pre style="margin: 0;"> <span id="LC553" class="line" lang="haskell"><span class="n" style="color: #333;">exprEtaExpandArity</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;">CoreExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">ArityType</span></span>

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<pre style="margin: 0;"> <span id="LC554" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- exprEtaExpandArity is used when eta expanding</span></span>

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<pre style="margin: 0;"> <span id="LC555" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--      e  ==>  \xy -> e x y</span></span>

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<pre style="margin: 0;">-<span id="LC559" class="line" lang="haskell"><span class="n" style="color: #333;">exprEtaExpandArity</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">e</span></span>

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<pre style="margin: 0;">-<span id="LC560" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">arityType</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">e</span></span>

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<pre style="margin: 0;">-<span id="LC561" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">where</span></span>

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<pre style="margin: 0;">-<span id="LC562" class="line" lang="haskell">    <span class="n" style="color: #333;">env</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">AE</span> <span class="p">{</span> <span class="n" style="color: #333;">ae_cheap_fn</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mk_cheap_fn</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">isCheapApp</span></span>

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<pre style="margin: 0;">-<span id="LC563" class="line" lang="haskell">             <span class="p">,</span> <span class="n" style="color: #333;">ae_ped_bot</span>  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">gopt</span> <span class="kt" style="color: #458; font-weight: 600;">Opt_PedanticBottoms</span> <span class="n" style="color: #333;">dflags</span></span>

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<pre style="margin: 0;">-<span id="LC564" class="line" lang="haskell">             <span class="p">,</span> <span class="n" style="color: #333;">ae_joins</span>    <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">emptyVarSet</span> <span class="p">}</span></span>

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<pre style="margin: 0;">+<span id="LC556" class="line" lang="haskell"><span class="n" style="color: #333;">exprEtaExpandArity</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">e</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">arityType</span> <span class="p">(</span><span class="n" style="color: #333;">initArityEnv</span> <span class="n" style="color: #333;">dflags</span><span class="p">)</span> <span class="n" style="color: #333;">e</span></span>

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<pre style="margin: 0;"> <span id="LC558" class="line" lang="haskell"><span class="n" style="color: #333;">getBotArity</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">ArityType</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Maybe</span> <span class="kt" style="color: #458; font-weight: 600;">Arity</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="567" 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">

567

</td>

<td class="diff-line-num new_line" data-linenumber="559" 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">

559

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<pre style="margin: 0;"> <span id="LC559" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Arity of a divergent function</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="568" 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">

568

</td>

<td class="diff-line-num new_line" data-linenumber="560" 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">

560

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<pre style="margin: 0;"> <span id="LC560" class="line" lang="haskell"><span class="n" style="color: #333;">getBotArity</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ABot</span> <span class="n" style="color: #333;">n</span><span class="p">)</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;">n</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="569" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

569

</td>

<td class="diff-line-num new_line" data-linenumber="561" 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">

561

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<pre style="margin: 0;"> <span id="LC561" class="line" lang="haskell"><span class="n" style="color: #333;">getBotArity</span> <span class="kr" style="font-weight: 600;">_</span>        <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="570" 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">

570

</td>

<td class="diff-line-num new_line" data-linenumber="562" 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">

562

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

<pre style="margin: 0;"> <span id="LC562" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="571" 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">

571

</td>

<td class="diff-line-num new_line old" data-linenumber="563" 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="LC571" class="line" lang="haskell"><span class="n" style="color: #333;">mk_cheap_fn</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;">CheapAppFun</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CheapFun</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="572" 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">

572

</td>

<td class="diff-line-num new_line old" data-linenumber="563" 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="LC572" class="line" lang="haskell"><span class="n" style="color: #333;">mk_cheap_fn</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">cheap_app</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="573" 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">

573

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<td class="diff-line-num new_line old" data-linenumber="563" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC573" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">gopt</span> <span class="kt" style="color: #458; font-weight: 600;">Opt_DictsCheap</span> <span class="n" style="color: #333;">dflags</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="574" 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">

574

</td>

<td class="diff-line-num new_line old" data-linenumber="563" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC574" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">e</span> <span class="kr" style="font-weight: 600;">_</span>     <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">exprIsCheapX</span> <span class="n" style="color: #333;">cheap_app</span> <span class="n" style="color: #333;">e</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="575" 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">

575

</td>

<td class="diff-line-num new_line old" data-linenumber="563" 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="LC575" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span></span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="576" 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">

576

</td>

<td class="diff-line-num new_line old" data-linenumber="563" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC576" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">e</span> <span class="n" style="color: #333;">mb_ty</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">exprIsCheapX</span> <span class="n" style="color: #333;">cheap_app</span> <span class="n" style="color: #333;">e</span></span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="577" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

577

</td>

<td class="diff-line-num new_line old" data-linenumber="563" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<pre style="margin: 0;">-<span id="LC577" class="line" lang="haskell">             <span class="o" style="font-weight: 600;">||</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">mb_ty</span> <span class="kr" style="font-weight: 600;">of</span></span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="578" 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">

578

</td>

<td class="diff-line-num new_line old" data-linenumber="563" 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="LC578" class="line" lang="haskell">                  <span class="kt" style="color: #458; font-weight: 600;">Nothing</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">False</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="579" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

579

</td>

<td class="diff-line-num new_line old" data-linenumber="563" 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="LC579" class="line" lang="haskell">                  <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">ty</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">isDictTy</span> <span class="n" style="color: #333;">ty</span></span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="580" 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">

580

</td>

<td class="diff-line-num new_line old" data-linenumber="563" 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="LC580" class="line" lang="haskell"></span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="581" 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">

581

</td>

<td class="diff-line-num new_line old" data-linenumber="563" 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="LC581" class="line" lang="haskell"></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="582" 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">

582

</td>

<td class="diff-line-num new_line" data-linenumber="563" 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">

563

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

<pre style="margin: 0;"> <span id="LC563" 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="583" 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">

583

</td>

<td class="diff-line-num new_line" data-linenumber="564" 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">

564

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

<pre style="margin: 0;"> <span id="LC564" class="line" lang="haskell"><span class="n" style="color: #333;">findRhsArity</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="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;">Arity</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">ArityType</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="584" 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">

584

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<pre style="margin: 0;"> <span id="LC565" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- This implements the fixpoint loop for arity analysis</span></span>

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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -588,20 +569,16 @@ findRhsArity :: DynFlags -> Id -> CoreExpr -> Arity -> ArityType</td>

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<pre style="margin: 0;"> <span id="LC569" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--      so it is safe to expand e  ==>  (\x1..xn. e x1 .. xn)</span></span>

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<pre style="margin: 0;"> <span id="LC570" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--  (b) if is_bot=True, then e applied to n args is guaranteed bottom</span></span>

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<pre style="margin: 0;"> <span id="LC571" class="line" lang="haskell"><span class="n" style="color: #333;">findRhsArity</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">bndr</span> <span class="n" style="color: #333;">rhs</span> <span class="n" style="color: #333;">old_arity</span></span>

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591

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<pre style="margin: 0;">-<span id="LC591" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go</span> <span class="p">(</span><span class="n" style="color: #333;"><span class="idiff left">get_arity</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">init_cheap_app</span></span><span class="p">)</span></span>

</pre>

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<pre style="margin: 0;">-<span id="LC592" class="line" lang="haskell">      <span class="idiff left"> </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">-- We always call exprEtaExpandArity once, but usually</span></span></span>

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<td class="diff-line-num old old_line" data-linenumber="593" 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">

593

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<pre style="margin: 0;">-<span id="LC593" class="line" lang="haskell">      <span class="idiff left"> </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">-- that produces a result equal to old_arity, and then</span></span></span>

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594

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<pre style="margin: 0;">-<span id="LC594" class="line" lang="haskell">      <span class="idiff left"> </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">-- we stop right away (since arities should not</span> decrease)</span></span>

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595

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<pre style="margin: 0;">-<span id="LC595" class="line" lang="haskell">      <span class="idiff left right"> </span><span class="c1" style="color: #998; font-style: italic;">-- Result: the common case is that there is just one iteration</span></span>

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<pre style="margin: 0;">+<span id="LC572" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go</span> <span class="p">(</span><span class="n" style="color: #333;"><span class="idiff left">step</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">botArityType</span></span><span class="p">)</span></span>

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<pre style="margin: 0;">+<span id="LC573" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;"><span class="idiff left right">-- We always do one step, but usually that produces a result equal to</span></span></span>

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<pre style="margin: 0;">+<span id="LC574" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;"><span class="idiff left right">-- old_arity, and then we stop right away (since arities should not</span></span></span>

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<pre style="margin: 0;">+<span id="LC575" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;"><span class="idiff left right">--</span> decrease)</span></span>

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<pre style="margin: 0;">+<span id="LC576" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- Result: the common case is that there is just one iteration</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC577" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">where</span></span>

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<pre style="margin: 0;">-<span id="LC597" class="line" lang="haskell">    <span class="n" style="color: #333;">init_cheap_app</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CheapAppFun</span></span>

</pre>

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<pre style="margin: 0;">-<span id="LC598" class="line" lang="haskell">    <span class="n" style="color: #333;">init_cheap_app</span> <span class="n" style="color: #333;">fn</span> <span class="n" style="color: #333;">n_val_args</span></span>

</pre>

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<pre style="margin: 0;">-<span id="LC599" class="line" lang="haskell">      <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">fn</span> <span class="o" style="font-weight: 600;">==</span> <span class="n" style="color: #333;">bndr</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">True</span>   <span class="c1" style="color: #998; font-style: italic;">-- On the first pass, this binder gets infinite arity</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="600" 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">

600

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<td class="diff-line-num new_line old" data-linenumber="578" 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="LC600" 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;">isCheapApp</span> <span class="n" style="color: #333;">fn</span> <span class="n" style="color: #333;">n_val_args</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="601" 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">

601

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<td class="diff-line-num new_line old" data-linenumber="578" 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="LC601" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="602" 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">

602

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<td class="diff-line-num new_line" data-linenumber="578" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

578

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<pre style="margin: 0;"> <span id="LC578" class="line" lang="haskell">    <span class="n" style="color: #333;">go</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">ArityType</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">ArityType</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="603" 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="579" 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">

579

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<pre style="margin: 0;">+<span id="LC579" class="line" lang="haskell">    <span class="n" style="color: #333;">go</span> <span class="n" style="color: #333;">cur_atype</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ATop</span> <span class="n" style="color: #333;">oss</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="603" 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="580" 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">

580

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<pre style="margin: 0;">+<span id="LC580" class="line" lang="haskell">      <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">length</span> <span class="n" style="color: #333;">oss</span> <span class="o" style="font-weight: 600;"><=</span> <span class="n" style="color: #333;">old_arity</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">cur_atype</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="603" 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">

603

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<td class="diff-line-num new_line" data-linenumber="581" 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">

581

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<pre style="margin: 0;"> <span id="LC581" class="line" lang="haskell">    <span class="n" style="color: #333;">go</span> <span class="n" style="color: #333;">cur_atype</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="604" 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">

604

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<td class="diff-line-num new_line old" data-linenumber="582" 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="LC604" class="line" lang="haskell">      <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">cur_arity</span> <span class="o" style="font-weight: 600;"><=</span> <span class="n" style="color: #333;">old_arity</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">cur_atype</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="605" 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">

605

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<td class="diff-line-num new_line" data-linenumber="582" 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">

582

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<pre style="margin: 0;"> <span id="LC582" class="line" lang="haskell">      <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">new_atype</span> <span class="o" style="font-weight: 600;">==</span> <span class="n" style="color: #333;">cur_atype</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">cur_atype</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="606" 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">

606

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<td class="diff-line-num new_line" data-linenumber="583" 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">

583

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<pre style="margin: 0;"> <span id="LC583" 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>

</pre>

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<td class="diff-line-num old_line" data-linenumber="607" 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">

607

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<td class="diff-line-num new_line" data-linenumber="584" 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">

584

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<pre style="margin: 0;"> <span id="LC584" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">DEBUG</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="611" 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="588" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -611,20 +588,12 @@ findRhsArity dflags bndr rhs old_arity</td>

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<td class="diff-line-num old_line" data-linenumber="611" 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">

611

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<td class="diff-line-num new_line" data-linenumber="588" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

588

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<pre style="margin: 0;"> <span id="LC588" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="n" style="color: #333;">endif</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="612" 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">

612

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<td class="diff-line-num new_line" data-linenumber="589" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

589

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<pre style="margin: 0;"> <span id="LC589" class="line" lang="haskell">                    <span class="n" style="color: #333;">go</span> <span class="n" style="color: #333;">new_atype</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="613" 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">

613

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<td class="diff-line-num new_line" data-linenumber="590" 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">

590

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<pre style="margin: 0;"> <span id="LC590" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="614" 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">

614

</td>

<td class="diff-line-num new_line old" data-linenumber="591" 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="LC614" class="line" lang="haskell">        <span class="n" style="color: #333;">new_atype</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">get_arity</span> <span class="n" style="color: #333;">cheap_app</span></span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="615" 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">

615

</td>

<td class="diff-line-num new_line old" data-linenumber="591" 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="LC615" class="line" lang="haskell"></span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="616" 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">

616

</td>

<td class="diff-line-num new_line old" data-linenumber="591" 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="LC616" class="line" lang="haskell">        <span class="n" style="color: #333;">cur_arity</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">arityTypeArity</span> <span class="n" style="color: #333;">cur_atype</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="617" 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">

617

</td>

<td class="diff-line-num new_line old" data-linenumber="591" 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="LC617" class="line" lang="haskell">        <span class="n" style="color: #333;">cheap_app</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CheapAppFun</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="618" 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">

618

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<td class="diff-line-num new_line old" data-linenumber="591" 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="LC618" class="line" lang="haskell">        <span class="n" style="color: #333;">cheap_app</span> <span class="n" style="color: #333;">fn</span> <span class="n" style="color: #333;">n_val_args</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="619" 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">

619

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<td class="diff-line-num new_line old" data-linenumber="591" 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="LC619" class="line" lang="haskell">          <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">fn</span> <span class="o" style="font-weight: 600;">==</span> <span class="n" style="color: #333;">bndr</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">n_val_args</span> <span class="o" style="font-weight: 600;"><</span> <span class="n" style="color: #333;">cur_arity</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="620" 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">

620

</td>

<td class="diff-line-num new_line old" data-linenumber="591" 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="LC620" 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;">isCheapApp</span> <span class="n" style="color: #333;">fn</span> <span class="n" style="color: #333;">n_val_args</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="621" 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="591" 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">

591

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<pre style="margin: 0;">+<span id="LC591" class="line" lang="haskell">        <span class="n" style="color: #333;">new_atype</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">step</span> <span class="n" style="color: #333;">cur_atype</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="621" 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">

621

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<td class="diff-line-num new_line" data-linenumber="592" 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">

592

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<pre style="margin: 0;"> <span id="LC592" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="622" 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">

622

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<td class="diff-line-num new_line old" data-linenumber="593" 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="LC622" class="line" lang="haskell">    <span class="n" style="color: #333;"><span class="idiff left">get_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="kt" style="color: #458; font-weight: 600;"><span class="idiff right">CheapAppFun</span></span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">ArityType</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="623" 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">

623

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<td class="diff-line-num new_line old" data-linenumber="593" 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="LC623" class="line" lang="haskell">    <span class="n" style="color: #333;"><span class="idiff left">get_arity</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">cheap_app</span></span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">arityType</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">rhs</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="624" 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="593" 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">

593

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<pre style="margin: 0;">+<span id="LC593" class="line" lang="haskell">    <span class="n" style="color: #333;"><span class="idiff left">step</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 right">ArityType</span></span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">ArityType</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="624" 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="594" 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">

594

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<pre style="margin: 0;">+<span id="LC594" class="line" lang="haskell">    <span class="n" style="color: #333;"><span class="idiff left">step</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">at</span></span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">arityType</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">rhs</span></span>

</pre>

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624

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<td class="diff-line-num new_line" data-linenumber="595" 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">

595

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<pre style="margin: 0;"> <span id="LC595" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="625" 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">

625

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<td class="diff-line-num new_line old" data-linenumber="596" 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="LC625" class="line" lang="haskell">         <span class="n" style="color: #333;">env</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">AE</span> <span class="p">{</span> <span class="n" style="color: #333;">ae_cheap_fn</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mk_cheap_fn</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">cheap_app</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="626" 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">

626

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<td class="diff-line-num new_line old" data-linenumber="596" 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="LC626" class="line" lang="haskell">                  <span class="p">,</span> <span class="n" style="color: #333;">ae_ped_bot</span>  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">gopt</span> <span class="kt" style="color: #458; font-weight: 600;">Opt_PedanticBottoms</span> <span class="n" style="color: #333;">dflags</span></span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="627" 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">

627

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<td class="diff-line-num new_line old" data-linenumber="596" 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="LC627" class="line" lang="haskell">                  <span class="p">,</span> <span class="n" style="color: #333;">ae_joins</span>    <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">emptyVarSet</span> <span class="p">}</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="628" 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="596" 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">

596

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<pre style="margin: 0;">+<span id="LC596" class="line" lang="haskell">        <span class="n" style="color: #333;">env</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">extendSigEnv</span> <span class="p">(</span><span class="n" style="color: #333;">initArityEnv</span> <span class="n" style="color: #333;">dflags</span><span class="p">)</span> <span class="n" style="color: #333;">bndr</span> <span class="n" style="color: #333;">at</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="628" 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">

628

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<td class="diff-line-num new_line" data-linenumber="597" 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">

597

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<pre style="margin: 0;"> <span id="LC597" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="629" 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">

629

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<td class="diff-line-num new_line" data-linenumber="598" 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">

598

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<pre style="margin: 0;"> <span id="LC598" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">{-</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="630" 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">

630

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<td class="diff-line-num new_line" data-linenumber="599" 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">

599

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<pre style="margin: 0;"> <span id="LC599" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Note [Arity analysis]</span></span>

</pre>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="756" 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">@@ -756,22 +725,80 @@ encountered a cast, but that is far too conservative: see #5475</td>

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756

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725

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<pre style="margin: 0;"> <span id="LC725" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">-}</span></span>

</pre>

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757

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726

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<pre style="margin: 0;"> <span id="LC726" class="line" lang="haskell"></span>

</pre>

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758

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727

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<pre style="margin: 0;"> <span id="LC727" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">---------------------------</span></span>

</pre>

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759

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<pre style="margin: 0;">-<span id="LC759" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kt" style="color: #458; font-weight: 600;">CheapFun</span> <span class="o" style="font-weight: 600;">=</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;">Maybe</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span></span>

</pre>

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760

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<pre style="margin: 0;">-<span id="LC760" class="line" lang="haskell">        <span class="c1" style="color: #998; font-style: italic;">-- How to decide if an expression is cheap</span></span>

</pre>

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761

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<pre style="margin: 0;">-<span id="LC761" class="line" lang="haskell">        <span class="c1" style="color: #998; font-style: italic;">-- If the Maybe is Just, the type is the type</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="762" 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">

762

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<pre style="margin: 0;">-<span id="LC762" class="line" lang="haskell">        <span class="c1" style="color: #998; font-style: italic;">-- of the expression; Nothing means "don't know"</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="763" 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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728

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<pre style="margin: 0;">+<span id="LC728" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="763" 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="729" 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">

729

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<pre style="margin: 0;">+<span id="LC729" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">AnalysisMode</span></span>

</pre>

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</td>

<td class="diff-line-num new new_line" data-linenumber="730" 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">

730

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<pre style="margin: 0;">+<span id="LC730" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">BotStrictness</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="731" 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">

731

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<pre style="margin: 0;">+<span id="LC731" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- ^ Used during 'exprBotStrictness_maybe'.</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="732" 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">

732

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<pre style="margin: 0;">+<span id="LC732" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">ArityAnalysis</span> <span class="p">{</span> <span class="n" style="color: #333;">aa_ped_bot</span> <span class="o" style="font-weight: 600;">::</span> <span class="o" style="font-weight: 600;">!</span><span class="kt" style="color: #458; font-weight: 600;">Bool</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="733" 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">

733

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<pre style="margin: 0;">+<span id="LC733" class="line" lang="haskell">                  <span class="p">,</span> <span class="n" style="color: #333;">aa_dicts_cheap</span> <span class="o" style="font-weight: 600;">::</span> <span class="o" style="font-weight: 600;">!</span><span class="kt" style="color: #458; font-weight: 600;">Bool</span></span>

</pre>

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</td>

<td class="diff-line-num new new_line" data-linenumber="734" 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">

734

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<pre style="margin: 0;">+<span id="LC734" class="line" lang="haskell">                  <span class="p">,</span> <span class="n" style="color: #333;">aa_sigs</span> <span class="o" style="font-weight: 600;">::</span> <span class="o" style="font-weight: 600;">!</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">IdEnv</span> <span class="kt" style="color: #458; font-weight: 600;">ArityType</span><span class="p">)</span> <span class="p">}</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="735" 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">

735

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<pre style="margin: 0;">+<span id="LC735" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- ^ Used for regular arity analysis ('exprEtaExpandArity', 'findRhsArity').</span></span>

</pre>

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763

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<td class="diff-line-num new_line" data-linenumber="736" 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">

736

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<pre style="margin: 0;"> <span id="LC736" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="764" 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">

764

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737

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<pre style="margin: 0;"> <span id="LC737" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">ArityEnv</span></span>

</pre>

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765

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<td class="diff-line-num new_line old" data-linenumber="738" 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="LC765" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">AE</span> <span class="p">{</span> <span class="n" style="color: #333;">ae_cheap_fn</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CheapFun</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="766" 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">

766

</td>

<td class="diff-line-num new_line old" data-linenumber="738" 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="LC766" class="line" lang="haskell">       <span class="p">,</span> <span class="n" style="color: #333;">ae_ped_bot</span>  <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span>       <span class="c1" style="color: #998; font-style: italic;">-- True <=> be pedantic about bottoms</span></span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="767" 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">

767

</td>

<td class="diff-line-num new_line old" data-linenumber="738" 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="LC767" class="line" lang="haskell">       <span class="p">,</span> <span class="n" style="color: #333;">ae_joins</span>    <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">IdSet</span>      <span class="c1" style="color: #998; font-style: italic;">-- In-scope join points</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="768" 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">

768

</td>

<td class="diff-line-num new_line old" data-linenumber="738" 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="LC768" class="line" lang="haskell">                                   <span class="c1" style="color: #998; font-style: italic;">-- See Note [Eta-expansion and join points]</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="769" 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="738" 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">

738

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<pre style="margin: 0;">+<span id="LC738" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">AE</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="769" 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="739" 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">

739

</td>

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<pre style="margin: 0;">+<span id="LC739" class="line" lang="haskell">  <span class="p">{</span> <span class="n" style="color: #333;">ae_mode</span>   <span class="o" style="font-weight: 600;">::</span> <span class="o" style="font-weight: 600;">!</span><span class="kt" style="color: #458; font-weight: 600;">AnalysisMode</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="769" 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="740" 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">

740

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<pre style="margin: 0;">+<span id="LC740" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- ^ The analysis mode. Called during 'exprBotStrictness_maybe' or not?</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="769" 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="741" 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">

741

</td>

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<pre style="margin: 0;">+<span id="LC741" class="line" lang="haskell">  <span class="p">,</span> <span class="n" style="color: #333;">ae_joins</span>  <span class="o" style="font-weight: 600;">::</span> <span class="o" style="font-weight: 600;">!</span><span class="kt" style="color: #458; font-weight: 600;">IdSet</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="769" 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="742" 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">

742

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<pre style="margin: 0;">+<span id="LC742" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- ^ In-scope join points. See Note [Eta-expansion and join points]</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="769" 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">

769

</td>

<td class="diff-line-num new_line" data-linenumber="743" 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">

743

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<pre style="margin: 0;"> <span id="LC743" class="line" lang="haskell">  <span class="p">}</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="770" 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">

770

</td>

<td class="diff-line-num new_line" data-linenumber="744" 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">

744

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<pre style="margin: 0;"> <span id="LC744" class="line" lang="haskell"></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="771" 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="745" 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">

745

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<pre style="margin: 0;">+<span id="LC745" class="line" lang="haskell"><span class="cd">-- | A regular, initial @ArityEnv@ used in arity analysis.</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="771" 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="746" 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">

746

</td>

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<pre style="margin: 0;">+<span id="LC746" class="line" lang="haskell"><span class="n" style="color: #333;">initArityEnv</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;">ArityEnv</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="771" 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="747" 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">

747

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<pre style="margin: 0;">+<span id="LC747" class="line" lang="haskell"><span class="n" style="color: #333;">initArityEnv</span> <span class="n" style="color: #333;">dflags</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="771" 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="748" 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">

748

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<pre style="margin: 0;">+<span id="LC748" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">AE</span> <span class="p">{</span> <span class="n" style="color: #333;">ae_mode</span>  <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">ArityAnalysis</span> <span class="p">{</span> <span class="n" style="color: #333;">aa_ped_bot</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">gopt</span> <span class="kt" style="color: #458; font-weight: 600;">Opt_PedanticBottoms</span> <span class="n" style="color: #333;">dflags</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="771" 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="749" 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">

749

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<pre style="margin: 0;">+<span id="LC749" class="line" lang="haskell">                                  <span class="p">,</span> <span class="n" style="color: #333;">aa_dicts_cheap</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">gopt</span> <span class="kt" style="color: #458; font-weight: 600;">Opt_DictsCheap</span> <span class="n" style="color: #333;">dflags</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="771" 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="750" 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">

750

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<pre style="margin: 0;">+<span id="LC750" class="line" lang="haskell">                                  <span class="p">,</span> <span class="n" style="color: #333;">aa_sigs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">emptyVarEnv</span> <span class="p">}</span></span>

</pre>

</td>

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</td>

<td class="diff-line-num new new_line" data-linenumber="751" 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">

751

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<pre style="margin: 0;">+<span id="LC751" class="line" lang="haskell">       <span class="p">,</span> <span class="n" style="color: #333;">ae_joins</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">emptyVarSet</span> <span class="p">}</span></span>

</pre>

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</td>

<td class="diff-line-num new new_line" data-linenumber="752" 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">

752

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<pre style="margin: 0;">+<span id="LC752" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="753" 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">

753

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<pre style="margin: 0;">+<span id="LC753" class="line" lang="haskell"><span class="cd">-- | The @ArityEnv@ used by 'exprBotStrictness_maybe'. Pedantic about bottoms</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="754" 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">

754

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<pre style="margin: 0;">+<span id="LC754" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- and no application is ever considered cheap.</span></span>

</pre>

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755

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<pre style="margin: 0;">+<span id="LC755" class="line" lang="haskell"><span class="n" style="color: #333;">botStrictnessArityEnv</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">ArityEnv</span></span>

</pre>

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</td>

<td class="diff-line-num new new_line" data-linenumber="756" 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">

756

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<pre style="margin: 0;">+<span id="LC756" class="line" lang="haskell"><span class="n" style="color: #333;">botStrictnessArityEnv</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">AE</span> <span class="p">{</span> <span class="n" style="color: #333;">ae_mode</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">BotStrictness</span><span class="p">,</span> <span class="n" style="color: #333;">ae_joins</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">emptyVarSet</span> <span class="p">}</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="757" 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">

757

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<pre style="margin: 0;">+<span id="LC757" class="line" lang="haskell"></span>

</pre>

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771

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<td class="diff-line-num new_line" data-linenumber="758" 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">

758

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<pre style="margin: 0;"> <span id="LC758" class="line" lang="haskell"><span class="n" style="color: #333;">extendJoinEnv</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">ArityEnv</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">JoinId</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">ArityEnv</span></span>

</pre>

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772

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<td class="diff-line-num new_line" data-linenumber="759" 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">

759

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<pre style="margin: 0;"> <span id="LC759" class="line" lang="haskell"><span class="n" style="color: #333;">extendJoinEnv</span> <span class="n" style="color: #333;">env</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AE</span> <span class="p">{</span> <span class="n" style="color: #333;">ae_joins</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">joins</span> <span class="p">})</span> <span class="n" style="color: #333;">join_ids</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="773" 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">

773

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<td class="diff-line-num new_line" data-linenumber="760" 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">

760

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<pre style="margin: 0;"> <span id="LC760" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">env</span> <span class="p">{</span> <span class="n" style="color: #333;">ae_joins</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">joins</span> <span class="p">`</span><span class="n" style="color: #333;">extendVarSetList</span><span class="p">`</span> <span class="n" style="color: #333;">join_ids</span> <span class="p">}</span></span>

</pre>

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774

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761

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<pre style="margin: 0;"> <span id="LC761" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="775" 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="762" 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">

762

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<pre style="margin: 0;">+<span id="LC762" class="line" lang="haskell"><span class="n" style="color: #333;">extendSigEnv</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">ArityEnv</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="kt" style="color: #458; font-weight: 600;">ArityType</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">ArityEnv</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="775" 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="763" 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">

763

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<pre style="margin: 0;">+<span id="LC763" class="line" lang="haskell"><span class="n" style="color: #333;">extendSigEnv</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">id</span> <span class="n" style="color: #333;">ar_ty</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">env</span> <span class="p">{</span> <span class="n" style="color: #333;">ae_mode</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go</span> <span class="p">(</span><span class="n" style="color: #333;">ae_mode</span> <span class="n" style="color: #333;">env</span><span class="p">)</span> <span class="p">}</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="775" 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="764" 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">

764

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<pre style="margin: 0;">+<span id="LC764" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="775" 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="765" 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">

765

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<pre style="margin: 0;">+<span id="LC765" class="line" lang="haskell">    <span class="n" style="color: #333;">go</span> <span class="kt" style="color: #458; font-weight: 600;">BotStrictness</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">BotStrictness</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="766" 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">

766

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<pre style="margin: 0;">+<span id="LC766" class="line" lang="haskell">    <span class="n" style="color: #333;">go</span> <span class="n" style="color: #333;">aa</span>            <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">aa</span> <span class="p">{</span> <span class="n" style="color: #333;">aa_sigs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">extendVarEnv</span> <span class="p">(</span><span class="n" style="color: #333;">aa_sigs</span> <span class="n" style="color: #333;">aa</span><span class="p">)</span> <span class="n" style="color: #333;">id</span> <span class="n" style="color: #333;">ar_ty</span> <span class="p">}</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="775" 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="767" 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">

767

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<pre style="margin: 0;">+<span id="LC767" class="line" lang="haskell"></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="775" 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="768" 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">

768

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<pre style="margin: 0;">+<span id="LC768" class="line" lang="haskell"><span class="n" style="color: #333;">lookupSigEnv</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">ArityEnv</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="kt" style="color: #458; font-weight: 600;">Maybe</span> <span class="kt" style="color: #458; font-weight: 600;">ArityType</span></span>

</pre>

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769

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<pre style="margin: 0;">+<span id="LC769" class="line" lang="haskell"><span class="n" style="color: #333;">lookupSigEnv</span> <span class="kt" style="color: #458; font-weight: 600;">AE</span><span class="p">{</span> <span class="n" style="color: #333;">ae_mode</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mode</span> <span class="p">}</span> <span class="n" style="color: #333;">id</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">mode</span> <span class="kr" style="font-weight: 600;">of</span></span>

</pre>

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770

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<pre style="margin: 0;">+<span id="LC770" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">BotStrictness</span>                   <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span></span>

</pre>

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771

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<pre style="margin: 0;">+<span id="LC771" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">ArityAnalysis</span><span class="p">{</span> <span class="n" style="color: #333;">aa_sigs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">sigs</span> <span class="p">}</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">lookupVarEnv</span> <span class="n" style="color: #333;">sigs</span> <span class="n" style="color: #333;">id</span></span>

</pre>

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772

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<pre style="margin: 0;">+<span id="LC772" class="line" lang="haskell"></span>

</pre>

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773

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<pre style="margin: 0;">+<span id="LC773" class="line" lang="haskell"><span class="cd">-- | Whether the analysis should be pedantic about bottoms.</span></span>

</pre>

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774

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<pre style="margin: 0;">+<span id="LC774" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- 'exprBotStrictness_maybe' always is.</span></span>

</pre>

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775

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<pre style="margin: 0;">+<span id="LC775" class="line" lang="haskell"><span class="n" style="color: #333;">pedanticBottoms</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">ArityEnv</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span></span>

</pre>

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776

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<pre style="margin: 0;">+<span id="LC776" class="line" lang="haskell"><span class="n" style="color: #333;">pedanticBottoms</span> <span class="kt" style="color: #458; font-weight: 600;">AE</span><span class="p">{</span> <span class="n" style="color: #333;">ae_mode</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mode</span> <span class="p">}</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">mode</span> <span class="kr" style="font-weight: 600;">of</span></span>

</pre>

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777

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<pre style="margin: 0;">+<span id="LC777" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">BotStrictness</span>                         <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">True</span></span>

</pre>

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778

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<pre style="margin: 0;">+<span id="LC778" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">ArityAnalysis</span><span class="p">{</span> <span class="n" style="color: #333;">aa_ped_bot</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">ped_bot</span> <span class="p">}</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">ped_bot</span></span>

</pre>

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779

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<pre style="margin: 0;">+<span id="LC779" class="line" lang="haskell"></span>

</pre>

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780

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<pre style="margin: 0;">+<span id="LC780" class="line" lang="haskell"><span class="cd">-- | A version of 'exprIsCheap' that considers results from arity analysis</span></span>

</pre>

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781

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<pre style="margin: 0;">+<span id="LC781" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- and optionally the expression's type.</span></span>

</pre>

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782

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<pre style="margin: 0;">+<span id="LC782" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Under 'exprBotStrictness_maybe', no expressions are cheap.</span></span>

</pre>

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783

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<pre style="margin: 0;">+<span id="LC783" class="line" lang="haskell"><span class="n" style="color: #333;">myExprIsCheap</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">ArityEnv</span> <span class="o" style="font-weight: 600;">-></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;">Maybe</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span></span>

</pre>

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784

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<pre style="margin: 0;">+<span id="LC784" class="line" lang="haskell"><span class="n" style="color: #333;">myExprIsCheap</span> <span class="kt" style="color: #458; font-weight: 600;">AE</span><span class="p">{</span><span class="n" style="color: #333;">ae_mode</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mode</span><span class="p">}</span> <span class="n" style="color: #333;">e</span> <span class="n" style="color: #333;">mb_ty</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">mode</span> <span class="kr" style="font-weight: 600;">of</span></span>

</pre>

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785

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<pre style="margin: 0;">+<span id="LC785" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">BotStrictness</span>                                               <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">False</span></span>

</pre>

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</td>

<td class="diff-line-num new new_line" data-linenumber="786" 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">

786

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<pre style="margin: 0;">+<span id="LC786" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">ArityAnalysis</span><span class="p">{</span><span class="n" style="color: #333;">aa_dicts_cheap</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">dicts_cheap</span><span class="p">,</span> <span class="n" style="color: #333;">aa_sigs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">sigs</span><span class="p">}</span> <span class="o" style="font-weight: 600;">-></span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="775" 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="787" 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">

787

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<pre style="margin: 0;">+<span id="LC787" class="line" lang="haskell">    <span class="n" style="color: #333;">cheap_dict</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">exprIsCheapX</span> <span class="p">(</span><span class="n" style="color: #333;">myIsCheapApp</span> <span class="n" style="color: #333;">sigs</span><span class="p">)</span> <span class="n" style="color: #333;">e</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="775" 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="788" 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">

788

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<pre style="margin: 0;">+<span id="LC788" class="line" lang="haskell">    <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="775" 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="789" 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">

789

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<pre style="margin: 0;">+<span id="LC789" class="line" lang="haskell">      <span class="n" style="color: #333;">cheap_dict</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">dicts_cheap</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">fmap</span> <span class="n" style="color: #333;">isDictTy</span> <span class="n" style="color: #333;">mb_ty</span> <span class="o" style="font-weight: 600;">==</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="kt" style="color: #458; font-weight: 600;">True</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="775" 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="790" 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">

790

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<pre style="margin: 0;">+<span id="LC790" class="line" lang="haskell"></span>

</pre>

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</td>

<td class="diff-line-num new new_line" data-linenumber="791" 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">

791

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<pre style="margin: 0;">+<span id="LC791" class="line" lang="haskell"><span class="cd">-- | A version of 'isCheapApp' that considers results from arity analysis.</span></span>

</pre>

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</td>

<td class="diff-line-num new new_line" data-linenumber="792" 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">

792

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<pre style="margin: 0;">+<span id="LC792" class="line" lang="haskell"><span class="n" style="color: #333;">myIsCheapApp</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">IdEnv</span> <span class="kt" style="color: #458; font-weight: 600;">ArityType</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CheapAppFun</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="775" 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="793" 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">

793

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<pre style="margin: 0;">+<span id="LC793" class="line" lang="haskell"><span class="n" style="color: #333;">myIsCheapApp</span> <span class="n" style="color: #333;">sigs</span> <span class="n" style="color: #333;">fn</span> <span class="n" style="color: #333;">n_val_args</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">lookupVarEnv</span> <span class="n" style="color: #333;">sigs</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 new old_line" data-linenumber="775" 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="794" 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">

794

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<pre style="margin: 0;">+<span id="LC794" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- Nothing means not a local function, fall back to regular</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="775" 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="795" 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">

795

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<pre style="margin: 0;">+<span id="LC795" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- 'GHC.Core.Utils.isCheapApp'</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="775" 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="796" 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">

796

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<pre style="margin: 0;">+<span id="LC796" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">Nothing</span>         <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">isCheapApp</span> <span class="n" style="color: #333;">fn</span> <span class="n" style="color: #333;">n_val_args</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="775" 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="797" 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">

797

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<pre style="margin: 0;">+<span id="LC797" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- @Just at@ means local function with @at@ as current ArityType.</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="775" 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="798" 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">

798

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<pre style="margin: 0;">+<span id="LC798" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- Roughly approximate what 'isCheapApp' is doing.</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="775" 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="799" 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">

799

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<pre style="margin: 0;">+<span id="LC799" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ABot</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">)</span>   <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">True</span> <span class="c1" style="color: #998; font-style: italic;">-- See Note [isCheapApp: bottoming functions] in GHC.Core.Utils</span></span>

</pre>

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</td>

<td class="diff-line-num new new_line" data-linenumber="800" 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">

800

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<pre style="margin: 0;">+<span id="LC800" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ATop</span> <span class="n" style="color: #333;">oss</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">n_val_args</span> <span class="o" style="font-weight: 600;"><</span> <span class="n" style="color: #333;">length</span> <span class="n" style="color: #333;">oss</span> <span class="c1" style="color: #998; font-style: italic;">-- Essentially isWorkFreeApp</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="775" 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="801" 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">

801

</td>

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<pre style="margin: 0;">+<span id="LC801" class="line" lang="haskell"></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="775" 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">

775

</td>

<td class="diff-line-num new_line" data-linenumber="802" 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">

802

</td>

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<pre style="margin: 0;"> <span id="LC802" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">----------------</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="776" 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">

776

</td>

<td class="diff-line-num new_line" data-linenumber="803" 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">

803

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<pre style="margin: 0;"> <span id="LC803" class="line" lang="haskell"><span class="n" style="color: #333;">arityType</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">ArityEnv</span> <span class="o" style="font-weight: 600;">-></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;">ArityType</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="777" 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">

777

</td>

<td class="diff-line-num new_line" data-linenumber="804" 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">

804

</td>

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<pre style="margin: 0;"> <span id="LC804" class="line" lang="haskell"></span>

</pre>

</td>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="792" 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="819" 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">@@ -792,6 +819,8 @@ arityType env (Cast e co)</td>

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<td class="diff-line-num old_line" data-linenumber="792" 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">

792

</td>

<td class="diff-line-num new_line" data-linenumber="819" 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">

819

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<pre style="margin: 0;"> <span id="LC819" class="line" lang="haskell"><span class="n" style="color: #333;">arityType</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Var</span> <span class="n" style="color: #333;">v</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="793" 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">

793

</td>

<td class="diff-line-num new_line" data-linenumber="820" 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">

820

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<pre style="margin: 0;"> <span id="LC820" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">v</span> <span class="p">`</span><span class="n" style="color: #333;">elemVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">ae_joins</span> <span class="n" style="color: #333;">env</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="794" 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">

794

</td>

<td class="diff-line-num new_line" data-linenumber="821" 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">

821

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<pre style="margin: 0;"> <span id="LC821" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">botArityType</span>  <span class="c1" style="color: #998; font-style: italic;">-- See Note [Eta-expansion and join points]</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="795" 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="822" 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">

822

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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="LC822" 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="n" style="color: #333;">at</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lookupSigEnv</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">v</span> <span class="c1" style="color: #998; font-style: italic;">-- Local binding</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="795" 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="823" 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">

823

</td>

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

<pre style="margin: 0;">+<span id="LC823" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">at</span></span>

</pre>

</td>

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

<td class="diff-line-num old_line" data-linenumber="795" 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">

795

</td>

<td class="diff-line-num new_line" data-linenumber="824" 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">

824

</td>

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<pre style="margin: 0;"> <span id="LC824" 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_line" data-linenumber="796" 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">

796

</td>

<td class="diff-line-num new_line" data-linenumber="825" 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">

825

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<pre style="margin: 0;"> <span id="LC825" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">idArityType</span> <span class="n" style="color: #333;">v</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="797" 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">

797

</td>

<td class="diff-line-num new_line" data-linenumber="826" 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">

826

</td>

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

<pre style="margin: 0;"> <span id="LC826" class="line" lang="haskell"></span>

</pre>

</td>

</tr>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="804" 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="833" 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">@@ -804,7 +833,7 @@ arityType env (Lam x e)</td>

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<td class="diff-line-num old_line" data-linenumber="804" 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">

804

</td>

<td class="diff-line-num new_line" data-linenumber="833" 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">

833

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<pre style="margin: 0;"> <span id="LC833" class="line" lang="haskell"><span class="n" style="color: #333;">arityType</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">App</span> <span class="n" style="color: #333;">fun</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">))</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="805" 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">

805

</td>

<td class="diff-line-num new_line" data-linenumber="834" 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">

834

</td>

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

<pre style="margin: 0;"> <span id="LC834" class="line" lang="haskell">   <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">arityType</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">fun</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="806" 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">

806

</td>

<td class="diff-line-num new_line" data-linenumber="835" 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">

835

</td>

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

<pre style="margin: 0;"> <span id="LC835" class="line" lang="haskell"><span class="n" style="color: #333;">arityType</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">App</span> <span class="n" style="color: #333;">fun</span> <span class="n" style="color: #333;">arg</span> <span class="p">)</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="807" 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">

807

</td>

<td class="diff-line-num new_line old" data-linenumber="836" 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="LC807" class="line" lang="haskell">   <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">arityApp</span> <span class="p">(</span><span class="n" style="color: #333;">arityType</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">fun</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;"><span class="idiff left right">ae_cheap_fn</span></span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">arg</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span><span class="p">)</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="808" 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="836" 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">

836

</td>

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

<pre style="margin: 0;">+<span id="LC836" class="line" lang="haskell">   <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">arityApp</span> <span class="p">(</span><span class="n" style="color: #333;">arityType</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">fun</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;"><span class="idiff left right">myExprIsCheap</span></span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">arg</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span><span class="p">)</span></span>

</pre>

</td>

</tr>

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<td class="diff-line-num old_line" data-linenumber="808" 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">

808

</td>

<td class="diff-line-num new_line" data-linenumber="837" 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">

837

</td>

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

<pre style="margin: 0;"> <span id="LC837" class="line" lang="haskell"></span>

</pre>

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809

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838

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<pre style="margin: 0;"> <span id="LC838" class="line" lang="haskell">        <span class="c1" style="color: #998; font-style: italic;">-- Case/Let; keep arity if either the expression is cheap</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="810" 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">

810

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<td class="diff-line-num new_line" data-linenumber="839" 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">

839

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<pre style="margin: 0;"> <span id="LC839" class="line" lang="haskell">        <span class="c1" style="color: #998; font-style: italic;">-- or it's a 1-shot lambda</span></span>

</pre>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="824" 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="853" 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">@@ -824,10 +853,10 @@ arityType env (Case scrut _ _ alts)</td>

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824

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853

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<pre style="margin: 0;"> <span id="LC853" 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;">botArityType</span>  <span class="c1" style="color: #998; font-style: italic;">-- if RHS is bottomming</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="825" 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">

825

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<td class="diff-line-num new_line" data-linenumber="854" 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">

854

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<pre style="margin: 0;"> <span id="LC854" class="line" lang="haskell">                                          <span class="c1" style="color: #998; font-style: italic;">-- See Note [Dealing with bottom (2)]</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="826" 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">

826

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<td class="diff-line-num new_line" data-linenumber="855" 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">

855

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<pre style="margin: 0;"> <span id="LC855" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="827" 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">

827

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<td class="diff-line-num new_line old" data-linenumber="856" 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="LC827" class="line" lang="haskell">     <span class="kt" style="color: #458; font-weight: 600;">ATop</span> <span class="n" style="color: #333;">as</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;"><span class="idiff left">ae_ped_bot</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">env</span></span><span class="p"><span class="idiff">)</span></span><span class="idiff right">  </span>  <span class="c1" style="color: #998; font-style: italic;">-- See Note [Dealing with bottom (3)]</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="828" 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">

828

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<td class="diff-line-num new_line old" data-linenumber="856" 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="LC828" class="line" lang="haskell">             <span class="p">,</span> <span class="n" style="color: #333;"><span class="idiff left right">ae_cheap_fn</span></span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">scrut</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">ATop</span> <span class="n" style="color: #333;">as</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="829" 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">

829

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<pre style="margin: 0;">-<span id="LC829" class="line" lang="haskell">             <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">exprOkForSpeculation</span> <span class="n" style="color: #333;">scrut</span>    <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">ATop</span> <span class="n" style="color: #333;">as</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="830" 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">

830

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<td class="diff-line-num new_line old" data-linenumber="856" 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="LC830" class="line" lang="haskell">             <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span>                     <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">ATop</span> <span class="p">(</span><span class="n" style="color: #333;">takeWhile</span> <span class="n" style="color: #333;">isOneShotInfo</span> <span class="n" style="color: #333;">as</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="831" 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="856" 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">

856

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<pre style="margin: 0;">+<span id="LC856" class="line" lang="haskell">     <span class="kt" style="color: #458; font-weight: 600;">ATop</span> <span class="n" style="color: #333;">as</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;"><span class="idiff left">pedanticBottoms</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">env</span></span><span class="p"><span class="idiff right">)</span></span>  <span class="c1" style="color: #998; font-style: italic;">-- See Note [Dealing with bottom (3)]</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="857" 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">

857

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<pre style="margin: 0;">+<span id="LC857" class="line" lang="haskell">             <span class="p">,</span> <span class="n" style="color: #333;"><span class="idiff left right">myExprIsCheap</span></span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">scrut</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">ATop</span> <span class="n" style="color: #333;">as</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="831" 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="858" 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">

858

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<pre style="margin: 0;">+<span id="LC858" class="line" lang="haskell">             <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">exprOkForSpeculation</span> <span class="n" style="color: #333;">scrut</span>    <span class="idiff left right">  </span><span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">ATop</span> <span class="n" style="color: #333;">as</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="831" 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="859" 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">

859

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<pre style="margin: 0;">+<span id="LC859" class="line" lang="haskell">             <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span>                     <span class="idiff left right">  </span><span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">ATop</span> <span class="p">(</span><span class="n" style="color: #333;">takeWhile</span> <span class="n" style="color: #333;">isOneShotInfo</span> <span class="n" style="color: #333;">as</span><span class="p">)</span></span>

</pre>

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831

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<td class="diff-line-num new_line" data-linenumber="860" 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">

860

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<pre style="margin: 0;"> <span id="LC860" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="832" 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">

832

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<td class="diff-line-num new_line" data-linenumber="861" 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">

861

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<pre style="margin: 0;"> <span id="LC861" class="line" lang="haskell">    <span class="n" style="color: #333;">alts_type</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">foldr1</span> <span class="n" style="color: #333;">andArityType</span> <span class="p">[</span><span class="n" style="color: #333;">arityType</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">rhs</span> <span class="o" style="font-weight: 600;">|</span> <span class="p">(</span><span class="kr" style="font-weight: 600;">_</span><span class="p">,</span><span class="kr" style="font-weight: 600;">_</span><span class="p">,</span><span class="n" style="color: #333;">rhs</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">alts</span><span class="p">]</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="833" 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">

833

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862

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<pre style="margin: 0;"> <span id="LC862" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="854" 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="883" 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">@@ -854,11 +883,12 @@ arityType env (Let (Rec pairs) body)</td>

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854

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883

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<pre style="margin: 0;"> <span id="LC883" class="line" lang="haskell">      <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">pprPanic</span> <span class="s" style="color: #d14;">"arityType:joinrec"</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">pairs</span><span class="p">)</span></span>

</pre>

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855

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884

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<pre style="margin: 0;"> <span id="LC884" class="line" lang="haskell"></span>

</pre>

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856

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<td class="diff-line-num new_line" data-linenumber="885" 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">

885

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<pre style="margin: 0;"> <span id="LC885" class="line" lang="haskell"><span class="n" style="color: #333;">arityType</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Let</span> <span class="n" style="color: #333;">b</span> <span class="n" style="color: #333;">e</span><span class="p">)</span></span>

</pre>

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857

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<td class="diff-line-num new_line old" data-linenumber="886" 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="LC857" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">floatIn</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">cheap_bind</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">b</span></span><span class="p"><span class="idiff right">)</span></span> <span class="p">(</span><span class="n" style="color: #333;">arityType</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">e</span><span class="p">)</span></span>

</pre>

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886

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<pre style="margin: 0;">+<span id="LC886" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">floatIn</span> <span class="n" style="color: #333;"><span class="idiff left right">cheap_bind</span></span> <span class="p">(</span><span class="n" style="color: #333;">arityType</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">e</span><span class="p">)</span></span>

</pre>

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858

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<td class="diff-line-num new_line" data-linenumber="887" 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">

887

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<pre style="margin: 0;"> <span id="LC887" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="859" 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">

859

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<td class="diff-line-num new_line old" data-linenumber="888" 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="LC859" class="line" lang="haskell">    <span class="n" style="color: #333;">cheap_bind</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">NonRec</span> <span class="n" style="color: #333;">b</span> <span class="n" style="color: #333;">e</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">is_cheap</span> <span class="p">(</span><span class="n" style="color: #333;">b</span><span class="p">,</span><span class="n" style="color: #333;">e</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="860" 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">

860

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<td class="diff-line-num new_line old" data-linenumber="888" 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="LC860" class="line" lang="haskell">    <span class="n" style="color: #333;">cheap_bind</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Rec</span> <span class="n" style="color: #333;">prs</span><span class="p">)</span>    <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">all</span> <span class="n" style="color: #333;">is_cheap</span> <span class="n" style="color: #333;">prs</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="861" 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">

861

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<td class="diff-line-num new_line old" data-linenumber="888" 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="LC861" class="line" lang="haskell">    <span class="n" style="color: #333;">is_cheap</span> <span class="p">(</span><span class="n" style="color: #333;">b</span><span class="p">,</span><span class="n" style="color: #333;">e</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">ae_cheap_fn</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">e</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="n" style="color: #333;">idType</span> <span class="n" style="color: #333;">b</span><span class="p">))</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="862" 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="888" 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">

888

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<pre style="margin: 0;">+<span id="LC888" class="line" lang="haskell">    <span class="n" style="color: #333;">cheap_bind</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">b</span> <span class="kr" style="font-weight: 600;">of</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="862" 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="889" 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">

889

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<pre style="margin: 0;">+<span id="LC889" class="line" lang="haskell">      <span class="kt" style="color: #458; font-weight: 600;">NonRec</span> <span class="n" style="color: #333;">b</span> <span class="n" style="color: #333;">e</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">is_cheap</span> <span class="p">(</span><span class="n" style="color: #333;">b</span><span class="p">,</span><span class="n" style="color: #333;">e</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="862" 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="890" 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">

890

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<pre style="margin: 0;">+<span id="LC890" class="line" lang="haskell">      <span class="kt" style="color: #458; font-weight: 600;">Rec</span> <span class="n" style="color: #333;">prs</span>    <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">all</span> <span class="n" style="color: #333;">is_cheap</span> <span class="n" style="color: #333;">prs</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="891" 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">

891

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<pre style="margin: 0;">+<span id="LC891" class="line" lang="haskell">    <span class="n" style="color: #333;">is_cheap</span> <span class="p">(</span><span class="n" style="color: #333;">b</span><span class="p">,</span><span class="n" style="color: #333;">e</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">myExprIsCheap</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">e</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="n" style="color: #333;">idType</span> <span class="n" style="color: #333;">b</span><span class="p">))</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="862" 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">

862

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<td class="diff-line-num new_line" data-linenumber="892" 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">

892

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<pre style="margin: 0;"> <span id="LC892" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="863" 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">

863

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<td class="diff-line-num new_line" data-linenumber="893" 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">

893

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<pre style="margin: 0;"> <span id="LC893" class="line" lang="haskell"><span class="n" style="color: #333;">arityType</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Tick</span> <span class="n" style="color: #333;">t</span> <span class="n" style="color: #333;">e</span><span class="p">)</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC894" class="line" lang="haskell">  <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;">tickishIsCode</span> <span class="n" style="color: #333;">t</span><span class="p">)</span>     <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">arityType</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">e</span></span>

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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1772" 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">@@ -1742,4 +1772,3 @@ freshEtaId n subst ty</td>

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<pre style="margin: 0;"> <span id="LC1772" class="line" lang="haskell">                  <span class="c1" style="color: #998; font-style: italic;">-- "OrCoVar" since this can be used to eta-expand</span></span>

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<pre style="margin: 0;"> <span id="LC1773" class="line" lang="haskell">                  <span class="c1" style="color: #998; font-style: italic;">-- coercion abstractions</span></span>

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<pre style="margin: 0;"> <span id="LC1774" class="line" lang="haskell">        <span class="n" style="color: #333;">subst'</span>  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">extendTCvInScope</span> <span class="n" style="color: #333;">subst</span> <span class="n" style="color: #333;">eta_id'</span></span></pre>

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<pre style="margin: 0;">-<span id="LC1745" class="line" lang="haskell"></span></pre>

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</li>

<li id="5f4939320986b719243f5983eff02c3e05a0978d">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a6dc4633905c3f51a8d2baac9043a03db2581b7a#5f4939320986b719243f5983eff02c3e05a0978d"><strong>testsuite/tests/simplCore/should_compile/T18231.stderr</strong></a>

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1

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<pre style="margin: 0;"> <span id="LC1" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC2" class="line" lang="plaintext">==================== Tidy Core ====================</span>

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3

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<pre style="margin: 0;">-<span id="LC3" class="line" lang="plaintext">Result size of Tidy Core = {terms: <span class="idiff left right">30, types: 22</span>, coercions: 5, joins: 0/0}</span>

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<pre style="margin: 0;">+<span id="LC3" class="line" lang="plaintext">Result size of Tidy Core = {terms: <span class="idiff left right">24, types: 20</span>, coercions: 5, joins: 0/0}</span>

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<pre style="margin: 0;"> <span id="LC4" class="line" lang="plaintext"></span>

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5

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<pre style="margin: 0;"> <span id="LC5" class="line" lang="plaintext">-- RHS size: {terms: 1, types: 0, coercions: 0, joins: 0/0}</span>

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<pre style="margin: 0;"> <span id="LC6" class="line" lang="plaintext">T18231.$trModule4 :: GHC.Prim.Addr#</span>

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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -23,14 +23,14 @@ T18231.$trModule :: GHC.Types.Module</td>

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<pre style="margin: 0;"> <span id="LC23" class="line" lang="plaintext">T18231.$trModule = GHC.Types.Module T18231.$trModule3 T18231.$trModule1</span>

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<pre style="margin: 0;"> <span id="LC24" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC25" class="line" lang="plaintext">Rec {</span>

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<pre style="margin: 0;">-<span id="LC26" class="line" lang="plaintext">-- RHS size: {terms: 6, types: 1, coercions: 0, joins: 0/0}</span>

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<pre style="margin: 0;">-<span id="LC27" class="line" lang="plaintext">lvl :: GHC.Prim.Int# -> Data.Functor.Identity.Identity ((), Int)</span>

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<pre style="margin: 0;">-<span id="LC28" class="line" lang="plaintext">lvl = \ (x :: GHC.Prim.Int#) -> T18231.m1 (GHC.Types.I# (GHC.Prim.+# x 1#))</span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="26" 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="LC26" class="line" lang="plaintext">-- RHS size: {terms: 1, types: 0, coercions: 0, joins: 0/0}</span>

</pre>

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<td class="diff-line-num new old_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">

</td>

<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="plaintext">lvl :: Data.Functor.Identity.Identity ((), Int)</span>

</pre>

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<td class="diff-line-num new old_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">

</td>

<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="plaintext">lvl = lvl</span>

</pre>

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<td class="diff-line-num new old_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">

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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">

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<pre style="margin: 0;">+<span id="LC29" class="line" lang="plaintext">end Rec }</span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="29" 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">

29

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<td class="diff-line-num new_line" data-linenumber="30" 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">

30

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<pre style="margin: 0;"> <span id="LC30" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="30" 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">

30

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<td class="diff-line-num new_line old" data-linenumber="31" 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="LC30" class="line" lang="plaintext">-- RHS size: {terms: <span class="idiff left right">6</span>, types: 3, coercions: 0, joins: 0/0}</span>

</pre>

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<td class="diff-line-num new old_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">

</td>

<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">

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<pre style="margin: 0;">+<span id="LC31" class="line" lang="plaintext">-- RHS size: {terms: <span class="idiff left right">5</span>, types: 3, coercions: 0, joins: 0/0}</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="31" 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">

31

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<td class="diff-line-num new_line" data-linenumber="32" 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="LC32" class="line" lang="plaintext">T18231.m1 :: Int -> Data.Functor.Identity.Identity ((), Int)</span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="32" 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">

32

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<td class="diff-line-num new_line old" data-linenumber="33" 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="LC32" class="line" lang="plaintext">T18231.m1 = \ (s1 :: Int) -> case s1 of { GHC.Types.I# x -> lvl x }</span>

</pre>

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33

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<td class="diff-line-num new_line old" data-linenumber="33" 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="LC33" class="line" lang="plaintext">end Rec }</span>

</pre>

</td>

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<td class="diff-line-num new old_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">

</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">

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<pre style="margin: 0;">+<span id="LC33" class="line" lang="plaintext">T18231.m1 = \ (eta2 :: Int) -> case eta2 of { GHC.Types.I# x -> lvl }</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="34" 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">

34

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<td class="diff-line-num new_line" data-linenumber="34" 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">

34

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<pre style="margin: 0;"> <span id="LC34" class="line" lang="plaintext"></span>

</pre>

</td>

</tr>

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

<td class="diff-line-num old_line" data-linenumber="35" 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">

35

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<td class="diff-line-num new_line" data-linenumber="35" 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">

35

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<pre style="margin: 0;"> <span id="LC35" class="line" lang="plaintext">-- RHS size: {terms: 1, types: 0, coercions: 5, joins: 0/0}</span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="36" 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">

36

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<td class="diff-line-num new_line" data-linenumber="36" 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">

36

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<pre style="margin: 0;"> <span id="LC36" class="line" lang="plaintext">m :: State Int ()</span>

</pre>

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