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<body><span class="vcard"><a class="email" href="mailto:brzycki@gmail.com" title="Brian Rzycki <brzycki@gmail.com>"> <span class="fn">Brian Rzycki</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - llvm hangs in JumpThreading::runOnFunction"
href="https://bugs.llvm.org/show_bug.cgi?id=12218">bug 12218</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
</td>
</tr>
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<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
</td>
</tr>
<tr>
<td style="text-align:right;">CC</td>
<td>
</td>
<td>brzycki@gmail.com
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - llvm hangs in JumpThreading::runOnFunction"
href="https://bugs.llvm.org/show_bug.cgi?id=12218#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - llvm hangs in JumpThreading::runOnFunction"
href="https://bugs.llvm.org/show_bug.cgi?id=12218">bug 12218</a>
from <span class="vcard"><a class="email" href="mailto:brzycki@gmail.com" title="Brian Rzycki <brzycki@gmail.com>"> <span class="fn">Brian Rzycki</span></a>
</span></b>
<pre>I just tested clang_hang.c with LLVM tip and cannot reproduce the problem.
brzycki@cc01 ~ $ /work/brzycki/tip/install/bin/clang --version
clang version 7.0.0
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /work/brzycki/tip/install/bin
brzycki@cc01 ~ $ time /work/brzycki/tip/install/bin/clang clang_hang.c -w -O2
-c
real 0m3.302s
user 0m3.216s
sys 0m0.076s
brzycki@cc01 ~ $ time /work/brzycki/tip/install/bin/clang clang_hang.c -w -O3
-c
real 0m3.485s
user 0m3.420s
sys 0m0.056s
The commit I tested is from
<a href="https://github.com/llvm-project/llvm-project-20170507.git">https://github.com/llvm-project/llvm-project-20170507.git</a> using SHA:
commit 17e2331a3dc55d28e2986556a1b25b080c3861a5 (HEAD -> master, origin/master,
origin/HEAD)
Author: Craig Topper <<a href="mailto:craig.topper@intel.com">craig.topper@intel.com</a>>
Date: Mon Jul 9 18:23:55 2018 +0000
[SelectionDAG] Add VT consistency checks to the creation of ISD::FMA.
This is similar to what is done for binops. I don't know if this would have
helped us catch the bug fixed in r336566 earlier or not, but I figured it
couldn't hurt.</pre>
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