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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 INVALID - -instcombine with fast flag moves div outside of loop into loop, dramatically regressing performance"
href="https://bugs.llvm.org/show_bug.cgi?id=46115">bug 46115</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>INVALID
</td>
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<td style="text-align:right;">Status</td>
<td>NEW
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<td>RESOLVED
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - -instcombine with fast flag moves div outside of loop into loop, dramatically regressing performance"
href="https://bugs.llvm.org/show_bug.cgi?id=46115#c8">Comment # 8</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - -instcombine with fast flag moves div outside of loop into loop, dramatically regressing performance"
href="https://bugs.llvm.org/show_bug.cgi?id=46115">bug 46115</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 David Bolvansky from <a href="show_bug.cgi?id=46115#c7">comment #7</a>)
<span class="quote">> Is there any testcase in llvm tree to ensure that things will not regress if
> someone in the future tries to add instcombine after licm?</span >
Good point - added a test based on the example here:
<a href="https://github.com/llvm/llvm-project/commit/91b45fb527af8f1f83b51e7238642d3af011bad4">https://github.com/llvm/llvm-project/commit/91b45fb527af8f1f83b51e7238642d3af011bad4</a>
That shows the CSE opportunity. This bug is about fdiv sinking/hoisting, so
resolving since there's a Julia bug for that now.</pre>
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