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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [NewGVN] Assertion "Value number changed after main loop completed!" failed"
href="https://bugs.llvm.org/show_bug.cgi?id=36501">36501</a>
</td>
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<th>Summary</th>
<td>[NewGVN] Assertion "Value number changed after main loop completed!" failed
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Scalar Optimizations
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>paulsson@linux.vnet.ibm.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=19949" name="attach_19949" title="reduced testcase">attachment 19949</a> <a href="attachment.cgi?id=19949&action=edit" title="reduced testcase">[details]</a></span>
reduced testcase
bin/opt -mtriple=s390x-linux-gnu -mcpu=z13 tc_newgvn_aftermainloop.ll -o
out.opt -tbaa -loop-rotate -licm -loop-unswitch -simplifycfg -instcombine
-loop-unroll -newgvn
opt: /home/ijonpan/llvm/llvm-dev-2/lib/Transforms/Scalar/NewGVN.cpp:3285: void
{anonymous}::NewGVN::verifyIterationSettled(llvm::Function&): Assertion
`BeforeCC->isEquivalentTo(AfterCC) && "Value number changed after main loop
completed!"' failed.
#0 0x0000000002cb51e0 llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(bin/opt+0x2cb51e0)
...</pre>
</div>
</p>
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