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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 - Suboptimal materialization of += 1 as -= -1"
href="https://bugs.llvm.org/show_bug.cgi?id=52032">bug 52032</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
</td>
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<td style="text-align:right;">Fixed By Commit(s)</td>
<td>
</td>
<td>285b8abce483
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<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Suboptimal materialization of += 1 as -= -1"
href="https://bugs.llvm.org/show_bug.cgi?id=52032#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Suboptimal materialization of += 1 as -= -1"
href="https://bugs.llvm.org/show_bug.cgi?id=52032">bug 52032</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>We should use broadcast and fold loads after:
<a href="https://reviews.llvm.org/rG285b8abce483">https://reviews.llvm.org/rG285b8abce483</a>
...but as I mentioned in the commit message, I'm not sure if this results in a
perf win even if it looks better.
Using pcmpeq to create an all-ones vector still seems like the right trade-off
for most cases.</pre>
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