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<h3>
Marge Bot pushed to branch master
at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
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<h4>
Commits:
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<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0a3723876c6c79a0a407d50f4baa2818a13f232e">0a372387</a></strong>
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<span>by Sylvain Henry</span>
<i>at 2020-08-31T23:04:04-04:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix documentation and fix "check" bignum backend (#18604)
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<h4>5 changed files:</h4>
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<a href="#8532f64f08c3118b287de6ce88f7f93e050001e8">
libraries/ghc-bignum/src/GHC/Num/BigNat/Check.hs
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<a href="#c1262a953c0d3033fda498654e930273c2564bc2">
libraries/ghc-bignum/src/GHC/Num/BigNat/FFI.hs
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<a href="#cab2fcdde55a923fefc0bbf195acacd75a91c4fb">
libraries/ghc-bignum/src/GHC/Num/BigNat/GMP.hs
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<a href="#96a6cb7cae68c62daea3bb4b90d0824dacc1f9f2">
libraries/ghc-bignum/src/GHC/Num/BigNat/Native.hs
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<a href="#6a64c6609dc0aba1543a840b2f18195f48944965">
libraries/ghc-bignum/src/GHC/Num/WordArray.hs
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<h4>Changes:</h4>
<li id="8532f64f08c3118b287de6ce88f7f93e050001e8">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0a3723876c6c79a0a407d50f4baa2818a13f232e#8532f64f08c3118b287de6ce88f7f93e050001e8"><strong>libraries/ghc-bignum/src/GHC/Num/BigNat/Check.hs</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -129,8 +129,8 @@ mwaCompareOpBool mwa f g s =</td>
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<pre style="margin: 0;"> <span id="LC129" class="line" lang="haskell"> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">unexpectedValue</span> <span class="kr" style="font-weight: 600;">of</span></span>
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<pre style="margin: 0;"> <span id="LC130" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">!</span><span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s</span><span class="p">,</span> <span class="n" style="color: #333;">ra</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC131" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- see Note [ghc-bignum exceptions] in GHC.Num.Primitives</span></span>
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<pre style="margin: 0;">-<span id="LC132" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">case</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">ra</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">==#</span></span><span class="idiff"> </span><span class="mi" style="color: #099;"><span class="idiff">1</span></span><span class="o" style="font-weight: 600;"><span class="idiff">#</span></span><span class="p"><span class="idiff">)</span></span><span class="idiff"> </span><span class="kr" style="font-weight: 600;"><span class="idiff">of</span></span><span class="idiff"> </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">-- don't compare MWAs if ov</span>erflow signaled!</span></span>
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<pre style="margin: 0;">-<span id="LC133" class="line" lang="haskell"> <span class="mi" style="color: #099;"><span class="idiff left">1</span></span><span class="o" style="font-weight: 600;"><span class="idiff">#</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="o" style="font-weight: 600;"><span class="idiff">#</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">s</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ra</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">#</span></span><span class="p"><span class="idiff right">)</span></span></span>
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<pre style="margin: 0;">+<span id="LC132" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;"><span class="idiff left">ra</span></span><span class="idiff"> </span><span class="kr" style="font-weight: 600;"><span class="idiff">of</span></span><span class="idiff"> </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">-- don't compare MWAs if und</span>erflow signaled!</span></span>
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<pre style="margin: 0;">+<span id="LC133" class="line" lang="haskell"> <span class="mi" style="color: #099;"><span class="idiff left">0</span></span><span class="o" style="font-weight: 600;"><span class="idiff">#</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="o" style="font-weight: 600;"><span class="idiff">#</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">s</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ra</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">#</span></span><span class="p"><span class="idiff">)</span></span><span class="idiff"> </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">-- underflow</span></span></span>
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<pre style="margin: 0;"> <span id="LC134" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">mwaTrimZeroes</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">mwa</span> <span class="n" style="color: #333;">s</span> <span class="kr" style="font-weight: 600;">of</span> <span class="p">{</span> <span class="n" style="color: #333;">s</span> <span class="o" style="font-weight: 600;">-></span></span>
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<pre style="margin: 0;"> <span id="LC135" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">mwaTrimZeroes</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">mwb</span> <span class="n" style="color: #333;">s</span> <span class="kr" style="font-weight: 600;">of</span> <span class="p">{</span> <span class="n" style="color: #333;">s</span> <span class="o" style="font-weight: 600;">-></span></span>
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<pre style="margin: 0;"> <span id="LC136" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">mwaCompare</span> <span class="n" style="color: #333;">mwa</span> <span class="n" style="color: #333;">mwb</span> <span class="n" style="color: #333;">s</span> <span class="kr" style="font-weight: 600;">of</span></span>
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<li id="c1262a953c0d3033fda498654e930273c2564bc2">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0a3723876c6c79a0a407d50f4baa2818a13f232e#c1262a953c0d3033fda498654e930273c2564bc2"><strong>libraries/ghc-bignum/src/GHC/Num/BigNat/FFI.hs</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -113,7 +113,7 @@ foreign import ccall unsafe ghc_bignat_mul_word</td>
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<pre style="margin: 0;"> <span id="LC113" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- The potential 0 most-significant Words will be removed by the caller if it is</span></span>
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<pre style="margin: 0;"> <span id="LC114" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- not already done by the backend.</span></span>
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<pre style="margin: 0;"> <span id="LC115" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;">-<span id="LC116" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Return <span class="idiff left right">True to indicate ov</span>erflow.</span></span>
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<pre style="margin: 0;">+<span id="LC116" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Return <span class="idiff left right">False# to indicate und</span>erflow.</span></span>
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<pre style="margin: 0;"> <span id="LC117" class="line" lang="haskell"><span class="n" style="color: #333;">bignat_sub</span></span>
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<pre style="margin: 0;"> <span id="LC118" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">MutableWordArray</span><span class="o" style="font-weight: 600;">#</span> <span class="kt" style="color: #458; font-weight: 600;">RealWorld</span></span>
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<pre style="margin: 0;"> <span id="LC119" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">WordArray</span><span class="o" style="font-weight: 600;">#</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">@@ -136,7 +136,7 @@ foreign import ccall unsafe ghc_bignat_sub</td>
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<pre style="margin: 0;"> <span id="LC136" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- The potential 0 most-significant Words will be removed by the caller if it is</span></span>
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<pre style="margin: 0;"> <span id="LC137" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- not already done by the backend.</span></span>
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<pre style="margin: 0;"> <span id="LC138" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;">-<span id="LC139" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Return <span class="idiff left right">True to indicate ov</span>erflow.</span></span>
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<pre style="margin: 0;">+<span id="LC139" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Return <span class="idiff left right">False# to indicate und</span>erflow.</span></span>
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<pre style="margin: 0;"> <span id="LC140" class="line" lang="haskell"><span class="n" style="color: #333;">bignat_sub_word</span></span>
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<pre style="margin: 0;"> <span id="LC141" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">MutableWordArray</span><span class="o" style="font-weight: 600;">#</span> <span class="kt" style="color: #458; font-weight: 600;">RealWorld</span></span>
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<pre style="margin: 0;"> <span id="LC142" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">WordArray</span><span class="o" style="font-weight: 600;">#</span></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0a3723876c6c79a0a407d50f4baa2818a13f232e#cab2fcdde55a923fefc0bbf195acacd75a91c4fb"><strong>libraries/ghc-bignum/src/GHC/Num/BigNat/GMP.hs</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -92,8 +92,8 @@ bignat_sub</td>
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<pre style="margin: 0;"> <span id="LC92" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# INLINE bignat_sub #-}</span></span>
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<pre style="margin: 0;"> <span id="LC93" class="line" lang="haskell"><span class="n" style="color: #333;">bignat_sub</span> <span class="n" style="color: #333;">mwa</span> <span class="n" style="color: #333;">wa</span> <span class="n" style="color: #333;">wb</span> <span class="n" style="color: #333;">s</span> <span class="o" style="font-weight: 600;">=</span></span>
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<pre style="margin: 0;"> <span id="LC94" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">ioWord</span><span class="o" style="font-weight: 600;">#</span> <span class="p">(</span><span class="n" style="color: #333;">c_mpn_sub</span> <span class="n" style="color: #333;">mwa</span> <span class="n" style="color: #333;">wa</span> <span class="p">(</span><span class="n" style="color: #333;">wordArraySize</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">wa</span><span class="p">)</span> <span class="n" style="color: #333;">wb</span> <span class="p">(</span><span class="n" style="color: #333;">wordArraySize</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">wb</span><span class="p">))</span> <span class="n" style="color: #333;">s</span> <span class="kr" style="font-weight: 600;">of</span></span>
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<pre style="margin: 0;">-<span id="LC95" class="line" lang="haskell"> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">##</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">ov</span>erflow</span></span>
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<pre style="margin: 0;">-<span id="LC96" class="line" lang="haskell"> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- no <span class="idiff left right">ov</span>erflow</span></span>
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<pre style="margin: 0;">+<span id="LC95" class="line" lang="haskell"> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">##</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">und</span>erflow</span></span>
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<pre style="margin: 0;">+<span id="LC96" class="line" lang="haskell"> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- no <span class="idiff left right">und</span>erflow</span></span>
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<pre style="margin: 0;"> <span id="LC97" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC98" class="line" lang="haskell"><span class="n" style="color: #333;">bignat_sub_word</span></span>
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<pre style="margin: 0;"> <span id="LC99" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">MutableWordArray</span><span class="o" style="font-weight: 600;">#</span> <span class="kt" style="color: #458; font-weight: 600;">RealWorld</span></span>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="104" style="width: 35px; color: rgba(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">@@ -104,8 +104,8 @@ bignat_sub_word</td>
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104
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104
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<pre style="margin: 0;"> <span id="LC104" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# INLINE bignat_sub_word #-}</span></span>
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105
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105
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<pre style="margin: 0;"> <span id="LC105" class="line" lang="haskell"><span class="n" style="color: #333;">bignat_sub_word</span> <span class="n" style="color: #333;">mwa</span> <span class="n" style="color: #333;">wa</span> <span class="n" style="color: #333;">b</span> <span class="n" style="color: #333;">s</span> <span class="o" style="font-weight: 600;">=</span></span>
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106
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106
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<pre style="margin: 0;"> <span id="LC106" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">ioWord</span><span class="o" style="font-weight: 600;">#</span> <span class="p">(</span><span class="n" style="color: #333;">c_mpn_sub_1</span> <span class="n" style="color: #333;">mwa</span> <span class="n" style="color: #333;">wa</span> <span class="p">(</span><span class="n" style="color: #333;">wordArraySize</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">wa</span><span class="p">)</span> <span class="n" style="color: #333;">b</span><span class="p">)</span> <span class="n" style="color: #333;">s</span> <span class="kr" style="font-weight: 600;">of</span></span>
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107
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<pre style="margin: 0;">-<span id="LC107" class="line" lang="haskell"> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">##</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">ov</span>erflow</span></span>
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108
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<pre style="margin: 0;">-<span id="LC108" class="line" lang="haskell"> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- no <span class="idiff left right">ov</span>erflow</span></span>
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<pre style="margin: 0;">+<span id="LC107" class="line" lang="haskell"> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">##</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">und</span>erflow</span></span>
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<pre style="margin: 0;">+<span id="LC108" class="line" lang="haskell"> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- no <span class="idiff left right">und</span>erflow</span></span>
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109
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109
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<pre style="margin: 0;"> <span id="LC109" class="line" lang="haskell"></span>
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110
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110
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<pre style="margin: 0;"> <span id="LC110" class="line" lang="haskell"><span class="n" style="color: #333;">bignat_mul</span></span>
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111
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<pre style="margin: 0;"> <span id="LC111" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">MutableWordArray</span><span class="o" style="font-weight: 600;">#</span> <span class="kt" style="color: #458; font-weight: 600;">RealWorld</span></span>
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<li id="96a6cb7cae68c62daea3bb4b90d0824dacc1f9f2">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0a3723876c6c79a0a407d50f4baa2818a13f232e#96a6cb7cae68c62daea3bb4b90d0824dacc1f9f2"><strong>libraries/ghc-bignum/src/GHC/Num/BigNat/Native.hs</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -131,13 +131,13 @@ bignat_sub_word mwa wa b = go b 0#</td>
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131
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131
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<pre style="margin: 0;"> <span id="LC131" class="line" lang="haskell"></span>
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132
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132
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<pre style="margin: 0;"> <span id="LC132" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">##</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">carry</span></span>
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133
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133
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<pre style="margin: 0;"> <span id="LC133" 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;">mwaArrayCopy</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">mwa</span> <span class="n" style="color: #333;">i</span> <span class="n" style="color: #333;">wa</span> <span class="n" style="color: #333;">i</span> <span class="p">(</span><span class="n" style="color: #333;">sz</span> <span class="o" style="font-weight: 600;">-#</span> <span class="n" style="color: #333;">i</span><span class="p">)</span> <span class="n" style="color: #333;">s</span> <span class="kr" style="font-weight: 600;">of</span></span>
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134
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<pre style="margin: 0;">-<span id="LC134" class="line" lang="haskell"> <span class="n" style="color: #333;">s'</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- no <span class="idiff left right">ov</span>erflow</span></span>
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134
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<pre style="margin: 0;">+<span id="LC134" class="line" lang="haskell"> <span class="n" style="color: #333;">s'</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- no <span class="idiff left right">und</span>erflow</span></span>
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135
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135
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<pre style="margin: 0;"> <span id="LC135" class="line" lang="haskell"></span>
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136
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136
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<pre style="margin: 0;"> <span id="LC136" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">True</span></span>
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137
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137
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<pre style="margin: 0;"> <span id="LC137" 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;">subWordC</span><span class="o" style="font-weight: 600;">#</span> <span class="p">(</span><span class="n" style="color: #333;">indexWordArray</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">wa</span> <span class="n" style="color: #333;">i</span><span class="p">)</span> <span class="n" style="color: #333;">carry</span> <span class="kr" style="font-weight: 600;">of</span></span>
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138
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138
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<pre style="margin: 0;"> <span id="LC138" class="line" lang="haskell"> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">##</span><span class="p">,</span> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span></span>
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139
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139
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<pre style="margin: 0;"> <span id="LC139" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isTrue</span><span class="o" style="font-weight: 600;">#</span> <span class="p">(</span><span class="n" style="color: #333;">i</span> <span class="o" style="font-weight: 600;">==#</span> <span class="n" style="color: #333;">sz</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;">mwaShrink</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">mwa</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s</span> <span class="kr" style="font-weight: 600;">of</span></span>
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140
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<td class="diff-line-num new_line old" data-linenumber="140" 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="LC140" class="line" lang="haskell"> <span class="n" style="color: #333;">s'</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- no <span class="idiff left right">ov</span>erflow</span></span>
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140
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<pre style="margin: 0;">+<span id="LC140" class="line" lang="haskell"> <span class="n" style="color: #333;">s'</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- no <span class="idiff left right">und</span>erflow</span></span>
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141
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141
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<pre style="margin: 0;"> <span id="LC141" class="line" lang="haskell"></span>
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142
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142
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<pre style="margin: 0;"> <span id="LC142" class="line" lang="haskell"> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">l</span> <span class="p">,</span> <span class="n" style="color: #333;">c</span> <span class="o" style="font-weight: 600;">#</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;">mwaWrite</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">mwa</span> <span class="n" style="color: #333;">i</span> <span class="n" style="color: #333;">l</span> <span class="n" style="color: #333;">s</span> <span class="kr" style="font-weight: 600;">of</span></span>
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143
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143
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<pre style="margin: 0;"> <span id="LC143" class="line" lang="haskell"> <span class="n" style="color: #333;">s1</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;">int2Word</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">c</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">i</span> <span class="o" style="font-weight: 600;">+#</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="n" style="color: #333;">s1</span></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0a3723876c6c79a0a407d50f4baa2818a13f232e#6a64c6609dc0aba1543a840b2f18195f48944965"><strong>libraries/ghc-bignum/src/GHC/Num/WordArray.hs</strong></a>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="318" style="width: 35px; color: rgba(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">@@ -318,7 +318,7 @@ mwaAddInplaceWord# mwa i y s = case readWordArray# mwa i s of</td>
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318
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318
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<pre style="margin: 0;"> <span id="LC318" class="line" lang="haskell"><span class="cd">-- | Sub Word# inplace (at the specified offset) in the mwa with carry</span></span>
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319
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319
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<pre style="margin: 0;"> <span id="LC319" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- propagation.</span></span>
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320
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320
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<pre style="margin: 0;"> <span id="LC320" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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321
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<pre style="margin: 0;">-<span id="LC321" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Return False# on <span class="idiff left right">ov</span>erflow</span></span>
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321
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<pre style="margin: 0;">+<span id="LC321" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Return False# on <span class="idiff left right">und</span>erflow</span></span>
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322
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322
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<pre style="margin: 0;"> <span id="LC322" class="line" lang="haskell"><span class="n" style="color: #333;">mwaSubInplaceWord</span><span class="o" style="font-weight: 600;">#</span></span>
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323
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<pre style="margin: 0;"> <span id="LC323" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">MutableWordArray</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">d</span></span>
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<pre style="margin: 0;"> <span id="LC324" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Int</span><span class="o" style="font-weight: 600;">#</span></span>
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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">@@ -328,9 +328,9 @@ mwaSubInplaceWord#</td>
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<pre style="margin: 0;"> <span id="LC328" class="line" lang="haskell"><span class="n" style="color: #333;">mwaSubInplaceWord</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">mwa</span> <span class="n" style="color: #333;">ii</span> <span class="n" style="color: #333;">iw</span> <span class="n" style="color: #333;">s1</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">mwaSize</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">mwa</span> <span class="n" style="color: #333;">s1</span> <span class="kr" style="font-weight: 600;">of</span></span>
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<pre style="margin: 0;"> <span id="LC329" class="line" lang="haskell"> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">is</span><span class="p">,</span> <span class="n" style="color: #333;">sz</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span></span>
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330
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<pre style="margin: 0;"> <span id="LC330" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">let</span></span>
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331
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<pre style="margin: 0;">-<span id="LC331" class="line" lang="haskell"> <span class="n" style="color: #333;">go</span> <span class="kr" style="font-weight: 600;">_</span> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">##</span> <span class="n" style="color: #333;">s</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s</span><span class="p">,</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- no <span class="idiff left right">ov</span>erflow</span></span>
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<pre style="margin: 0;">+<span id="LC331" class="line" lang="haskell"> <span class="n" style="color: #333;">go</span> <span class="kr" style="font-weight: 600;">_</span> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">##</span> <span class="n" style="color: #333;">s</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s</span><span class="p">,</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- no <span class="idiff left right">und</span>erflow</span></span>
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332
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<pre style="margin: 0;"> <span id="LC332" class="line" lang="haskell"> <span class="n" style="color: #333;">go</span> <span class="n" style="color: #333;">i</span> <span class="n" style="color: #333;">y</span> <span class="n" style="color: #333;">s</span></span>
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333
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<pre style="margin: 0;">-<span id="LC333" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isTrue</span><span class="o" style="font-weight: 600;">#</span> <span class="p">(</span><span class="n" style="color: #333;">i</span> <span class="o" style="font-weight: 600;">>=#</span> <span class="n" style="color: #333;">sz</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s</span><span class="p">,</span> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">ov</span>erflow</span></span>
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<pre style="margin: 0;">+<span id="LC333" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isTrue</span><span class="o" style="font-weight: 600;">#</span> <span class="p">(</span><span class="n" style="color: #333;">i</span> <span class="o" style="font-weight: 600;">>=#</span> <span class="n" style="color: #333;">sz</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s</span><span class="p">,</span> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">und</span>erflow</span></span>
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334
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<pre style="margin: 0;"> <span id="LC334" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">True</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">readWordArray</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">mwa</span> <span class="n" style="color: #333;">i</span> <span class="n" style="color: #333;">s</span> <span class="kr" style="font-weight: 600;">of</span></span>
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335
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<pre style="margin: 0;"> <span id="LC335" class="line" lang="haskell"> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s1</span><span class="p">,</span> <span class="n" style="color: #333;">x</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">let</span> <span class="o" style="font-weight: 600;">!</span><span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">l</span><span class="p">,</span><span class="n" style="color: #333;">h</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">subWordC</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;">y</span></span>
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<pre style="margin: 0;"> <span id="LC336" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">in</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">mwaWrite</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">mwa</span> <span class="n" style="color: #333;">i</span> <span class="n" style="color: #333;">l</span> <span class="n" style="color: #333;">s1</span> <span class="kr" style="font-weight: 600;">of</span></span>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="368" style="width: 35px; color: rgba(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">@@ -368,16 +368,16 @@ mwaTrimCompare k mwa wb s1</td>
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368
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368
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<pre style="margin: 0;"> <span id="LC368" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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369
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369
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<pre style="margin: 0;"> <span id="LC369" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- We don't trim the resulting array!</span></span>
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370
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370
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<pre style="margin: 0;"> <span id="LC370" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;">-<span id="LC371" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Return False# on <span class="idiff left right">ov</span>erflow.</span></span>
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<pre style="margin: 0;">+<span id="LC371" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Return False# on <span class="idiff left right">und</span>erflow.</span></span>
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<pre style="margin: 0;"> <span id="LC372" class="line" lang="haskell"><span class="n" style="color: #333;">mwaSubInplaceArray</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">MutableWordArray</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">d</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Int</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">WordArray</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;">State</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">d</span> <span class="o" 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;">State</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">d</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC373" class="line" lang="haskell"><span class="n" style="color: #333;">mwaSubInplaceArray</span> <span class="n" style="color: #333;">mwa</span> <span class="n" style="color: #333;">off</span> <span class="n" style="color: #333;">wb</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;">wordArraySize</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">wb</span> <span class="o" style="font-weight: 600;">-#</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC374" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;"> <span id="LC375" class="line" lang="haskell"> <span class="n" style="color: #333;">go</span> <span class="n" style="color: #333;">i</span> <span class="n" style="color: #333;">s</span></span>
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376
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<pre style="margin: 0;">-<span id="LC376" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isTrue</span><span class="o" style="font-weight: 600;">#</span> <span class="p">(</span><span class="n" style="color: #333;">i</span> <span class="o" style="font-weight: 600;"><#</span> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s</span><span class="p">,</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- no <span class="idiff left right">ov</span>erflow</span></span>
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<pre style="margin: 0;">+<span id="LC376" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isTrue</span><span class="o" style="font-weight: 600;">#</span> <span class="p">(</span><span class="n" style="color: #333;">i</span> <span class="o" style="font-weight: 600;"><#</span> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s</span><span class="p">,</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- no <span class="idiff left right">und</span>erflow</span></span>
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377
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<pre style="margin: 0;"> <span id="LC377" class="line" lang="haskell"> <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="LC378" 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;">mwaSubInplaceWord</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">mwa</span> <span class="p">(</span><span class="n" style="color: #333;">off</span> <span class="o" style="font-weight: 600;">+#</span> <span class="n" style="color: #333;">i</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">indexWordArray</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">wb</span> <span class="n" style="color: #333;">i</span><span class="p">)</span> <span class="n" style="color: #333;">s</span> <span class="kr" style="font-weight: 600;">of</span></span>
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<pre style="margin: 0;"> <span id="LC379" class="line" lang="haskell"> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s2</span><span class="p">,</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">go</span> <span class="p">(</span><span class="n" style="color: #333;">i</span> <span class="o" style="font-weight: 600;">-#</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="n" style="color: #333;">s2</span></span>
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<pre style="margin: 0;">-<span id="LC380" class="line" lang="haskell"> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s2</span><span class="p">,</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s2</span><span class="p">,</span> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">ov</span>erflow</span></span>
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<pre style="margin: 0;">+<span id="LC380" class="line" lang="haskell"> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s2</span><span class="p">,</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s2</span><span class="p">,</span> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">und</span>erflow</span></span>
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<pre style="margin: 0;"> <span id="LC381" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC382" class="line" lang="haskell"><span class="cd">-- | Add array inplace (a the specified offset) in the mwa with carry propagation.</span></span>
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<pre style="margin: 0;"> <span id="LC383" class="line" lang="haskell"><span class="c1" 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">@@ -398,19 +398,19 @@ mwaAddInplaceArray mwa off wb = go 0# 0##</td>
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398
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<pre style="margin: 0;"> <span id="LC398" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC399" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- We don't trim the resulting array!</span></span>
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<pre style="margin: 0;"> <span id="LC400" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;">-<span id="LC401" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Return False# on <span class="idiff left right">ov</span>erflow.</span></span>
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<pre style="margin: 0;">+<span id="LC401" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Return False# on <span class="idiff left right">und</span>erflow.</span></span>
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<pre style="margin: 0;"> <span id="LC402" class="line" lang="haskell"><span class="n" style="color: #333;">mwaSubInplaceMutableArray</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">MutableWordArray</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">d</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Int</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">MutableWordArray</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">d</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">State</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">d</span> <span class="o" 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;">State</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">d</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC403" class="line" lang="haskell"><span class="n" style="color: #333;">mwaSubInplaceMutableArray</span> <span class="n" style="color: #333;">mwa</span> <span class="n" style="color: #333;">off</span> <span class="n" style="color: #333;">mwb</span> <span class="n" style="color: #333;">s0</span> <span class="o" style="font-weight: 600;">=</span></span>
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404
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<pre style="margin: 0;"> <span id="LC404" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">mwaSize</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">mwb</span> <span class="n" style="color: #333;">s0</span> <span class="kr" style="font-weight: 600;">of</span></span>
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<pre style="margin: 0;"> <span id="LC405" class="line" lang="haskell"> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s1</span><span class="p">,</span> <span class="n" style="color: #333;">szB</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">go</span> <span class="p">(</span><span class="n" style="color: #333;">szB</span> <span class="o" style="font-weight: 600;">-#</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="n" style="color: #333;">s1</span></span>
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<pre style="margin: 0;"> <span id="LC406" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;"> <span id="LC407" class="line" lang="haskell"> <span class="n" style="color: #333;">go</span> <span class="n" style="color: #333;">i</span> <span class="n" style="color: #333;">s</span></span>
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408
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<pre style="margin: 0;">-<span id="LC408" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isTrue</span><span class="o" style="font-weight: 600;">#</span> <span class="p">(</span><span class="n" style="color: #333;">i</span> <span class="o" style="font-weight: 600;"><#</span> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s</span><span class="p">,</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- no <span class="idiff left right">ov</span>erflow</span></span>
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<pre style="margin: 0;">+<span id="LC408" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isTrue</span><span class="o" style="font-weight: 600;">#</span> <span class="p">(</span><span class="n" style="color: #333;">i</span> <span class="o" style="font-weight: 600;"><#</span> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s</span><span class="p">,</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- no <span class="idiff left right">und</span>erflow</span></span>
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409
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<pre style="margin: 0;"> <span id="LC409" class="line" lang="haskell"> <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="LC410" 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;">readWordArray</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">mwb</span> <span class="n" style="color: #333;">i</span> <span class="n" style="color: #333;">s</span> <span class="kr" style="font-weight: 600;">of</span></span>
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411
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<pre style="margin: 0;"> <span id="LC411" class="line" lang="haskell"> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s1</span><span class="p">,</span> <span class="n" style="color: #333;">bi</span> <span class="o" style="font-weight: 600;">#</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;">mwaSubInplaceWord</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">mwa</span> <span class="p">(</span><span class="n" style="color: #333;">off</span> <span class="o" style="font-weight: 600;">+#</span> <span class="n" style="color: #333;">i</span><span class="p">)</span> <span class="n" style="color: #333;">bi</span> <span class="n" style="color: #333;">s1</span> <span class="kr" style="font-weight: 600;">of</span></span>
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412
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<pre style="margin: 0;"> <span id="LC412" class="line" lang="haskell"> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s2</span><span class="p">,</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">go</span> <span class="p">(</span><span class="n" style="color: #333;">i</span> <span class="o" style="font-weight: 600;">-#</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="n" style="color: #333;">s2</span></span>
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413
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<pre style="margin: 0;">-<span id="LC413" class="line" lang="haskell"> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s2</span><span class="p">,</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s2</span><span class="p">,</span> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">ov</span>erflow</span></span>
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<pre style="margin: 0;">+<span id="LC413" class="line" lang="haskell"> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s2</span><span class="p">,</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">s2</span><span class="p">,</span> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">und</span>erflow</span></span>
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<pre style="margin: 0;"> <span id="LC414" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC415" class="line" lang="haskell"><span class="cd">-- | Sub an array inplace and then trim zeroes</span></span>
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<pre style="margin: 0;"> <span id="LC416" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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