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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 - [InstCombine] Assertion !isa<UndefValue>(Shuf.getOperand(1))"
href="https://bugs.llvm.org/show_bug.cgi?id=41419">bug 41419</a>
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<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
</td>
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
</td>
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<tr>
<td style="text-align:right;">Fixed By Commit(s)</td>
<td>
</td>
<td>357910
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [InstCombine] Assertion !isa<UndefValue>(Shuf.getOperand(1))"
href="https://bugs.llvm.org/show_bug.cgi?id=41419#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [InstCombine] Assertion !isa<UndefValue>(Shuf.getOperand(1))"
href="https://bugs.llvm.org/show_bug.cgi?id=41419">bug 41419</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>I went with the quick fix:
<a href="https://reviews.llvm.org/rL357910">https://reviews.llvm.org/rL357910</a>
...because it shold always be safe to commute and return.
The real fix -- as indicated in the code comment -- is to improve InstSimplify,
but that's probably a multi-step effort.</pre>
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