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<body><span class="vcard"><a class="email" href="mailto:george.burgess.iv@gmail.com" title="George Burgess <george.burgess.iv@gmail.com>"> <span class="fn">George Burgess</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - MemorySSA doesn't properly invalidate def-def cache entries"
href="https://bugs.llvm.org/show_bug.cgi?id=36529">bug 36529</a>
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<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - MemorySSA doesn't properly invalidate def-def cache entries"
href="https://bugs.llvm.org/show_bug.cgi?id=36529#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - MemorySSA doesn't properly invalidate def-def cache entries"
href="https://bugs.llvm.org/show_bug.cgi?id=36529">bug 36529</a>
from <span class="vcard"><a class="email" href="mailto:george.burgess.iv@gmail.com" title="George Burgess <george.burgess.iv@gmail.com>"> <span class="fn">George Burgess</span></a>
</span></b>
<pre>Oh, right. VHes are things.
In general, I'm a bit uneasy about the idea that we just hold on to this cache
entry without any way to update/detect it from the cached value, but I can't
think of a concrete example (that isn't a misoptimization) that would cause a
WeakVH approach to break here.
That said, should we find such an example in the future, we can always try to
make that work.
r326175 + r326177 should fix this.
Thank you!</pre>
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