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<body><span class="vcard"><a class="email" href="mailto:spatel+llvm@rotateright.com" title="Sanjay Patel <spatel+llvm@rotateright.com>"> <span class="fn">Sanjay Patel</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - replacing variable by a constant breaks add-with-carry (adc) and subtract-with-borrow (sbb) optimization"
href="https://bugs.llvm.org/show_bug.cgi?id=31754">bug 31754</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
</td>
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<tr>
<td style="text-align:right;">See Also</td>
<td>
</td>
<td>https://bugs.llvm.org/show_bug.cgi?id=40825
</td>
</tr>
<tr>
<td style="text-align:right;">Fixed By Commit(s)</td>
<td>352210
</td>
<td>352210, 354746
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<td style="text-align:right;">Status</td>
<td>CONFIRMED
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<td>RESOLVED
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - replacing variable by a constant breaks add-with-carry (adc) and subtract-with-borrow (sbb) optimization"
href="https://bugs.llvm.org/show_bug.cgi?id=31754#c11">Comment # 11</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - replacing variable by a constant breaks add-with-carry (adc) and subtract-with-borrow (sbb) optimization"
href="https://bugs.llvm.org/show_bug.cgi?id=31754">bug 31754</a>
from <span class="vcard"><a class="email" href="mailto:spatel+llvm@rotateright.com" title="Sanjay Patel <spatel+llvm@rotateright.com>"> <span class="fn">Sanjay Patel</span></a>
</span></b>
<pre>(In reply to Simon Pilgrim from <a href="show_bug.cgi?id=31754#c10">comment #10</a>)
<span class="quote">> <a href="https://godbolt.org/z/vMyJNI">https://godbolt.org/z/vMyJNI</a>
>
> Of Vincent's original sub/add cases only the add1 looks like its still
> having problems.</span >
That's the last problem that I was tracking for this report too.
Should be fixed after:
<a href="https://reviews.llvm.org/rL354746">https://reviews.llvm.org/rL354746</a>
Feel free to reopen and/or file new bugs (like <a class="bz_bug_link
bz_status_NEW "
title="NEW - [x86-64] Suboptimal codegen on uint128 negation"
href="show_bug.cgi?id=40825">bug 40825</a>) for missing pieces.</pre>
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