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<body><span class="vcard"><a class="email" href="mailto:chenmindong120@gmail.com" title="Mindong Chen <chenmindong120@gmail.com>"> <span class="fn">Mindong Chen</span></a>
</span> changed
<a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [LoopVectorize] Assertion `isa<PHINode>(UI) && "Expected LCSSA form"' failed."
href="https://bugs.llvm.org/show_bug.cgi?id=47390">bug 47390</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>WORKSFORME
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<td>---
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<td style="text-align:right;">Status</td>
<td>RESOLVED
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<td>REOPENED
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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [LoopVectorize] Assertion `isa<PHINode>(UI) && "Expected LCSSA form"' failed."
href="https://bugs.llvm.org/show_bug.cgi?id=47390#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [LoopVectorize] Assertion `isa<PHINode>(UI) && "Expected LCSSA form"' failed."
href="https://bugs.llvm.org/show_bug.cgi?id=47390">bug 47390</a>
from <span class="vcard"><a class="email" href="mailto:chenmindong120@gmail.com" title="Mindong Chen <chenmindong120@gmail.com>"> <span class="fn">Mindong Chen</span></a>
</span></b>
<pre>(In reply to Florian Hahn from <a href="show_bug.cgi?id=47390#c1">comment #1</a>)
<span class="quote">> I cannot reproduce the issue with a clang build from recent trunk.
>
> When built with `clang -O3`, the loop gets removed entirely. I also cannot
> reproduce with Clang 10/Clang 10.1 <a href="https://godbolt.org/z/r89vo9">https://godbolt.org/z/r89vo9</a>
>
> Please re-open with more details on how to reproduce the crash.</span >
Sorry I forgot to post the command here, please compile with -Os:
$ clang -Os reproducer.c</pre>
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