<html>
<head>
<base href="https://bugs.llvm.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - llc -O1 crashes in 'Canonicalize Freeze Instructions in Loops' with tons of SCEV calls on the call stack"
href="https://bugs.llvm.org/show_bug.cgi?id=50255">50255</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>llc -O1 crashes in 'Canonicalize Freeze Instructions in Loops' with tons of SCEV calls on the call stack
</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>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Loop Optimizer
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>mikael.holmen@ericsson.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=24840" name="attach_24840" title="bbi-35733_2.ll reproducer">attachment 24840</a> <a href="attachment.cgi?id=24840&action=edit" title="bbi-35733_2.ll reproducer">[details]</a></span>
bbi-35733_2.ll reproducer
Reproduce with:
llc -O1 -o /dev/null bbi-35733_2.ll
Result:
PLEASE submit a bug report to <a href="https://bugs.llvm.org/">https://bugs.llvm.org/</a> and include the crash
backtrace.
Stack dump:
0. Program arguments: /repo/uabelho/master-github/llvm/build-all/bin/llc
-O1 -o /dev/null bbi-35733_2.ll
1. Running pass 'Function Pass Manager' on module 'bbi-35733_2.ll'.
2. Running pass 'Loop Pass Manager' on function '@g'
3. Running pass 'Canonicalize Freeze Instructions in Loops' on basic block
'%for.body'
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH
or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
/repo/uabelho/master-github/llvm/build-all/bin/llc(_ZN4llvm3sys15PrintStackTraceERNS_11raw_ostreamEi+0x23)[0x2803f73]
/repo/uabelho/master-github/llvm/build-all/bin/llc(_ZN4llvm3sys17RunSignalHandlersEv+0xee)[0x2801c2e]
/repo/uabelho/master-github/llvm/build-all/bin/llc[0x2804436]
/lib64/libpthread.so.0(+0xf630)[0x7f464da20630]
/repo/uabelho/master-github/llvm/build-all/bin/llc(_ZN4llvm15ScalarEvolution19createAddRecFromPHIEPNS_7PHINodeE+0x1)[0x19d5231]
[...]
/repo/uabelho/master-github/llvm/build-all/bin/llc(_ZN4llvm15ScalarEvolution10createSCEVEPNS_5ValueE+0x1736)[0x19cf916]
/repo/uabelho/master-github/llvm/build-all/bin/llc(_ZN4llvm15ScalarEvolution7getSCEVEPNS_5ValueE+0x47)[0x19cace7]
Segmentation fault</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>