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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 - opt crashes with "opt -loop-deletion -iv-users""
href="https://bugs.llvm.org/show_bug.cgi?id=40990">40990</a>
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<tr>
<th>Summary</th>
<td>opt crashes with "opt -loop-deletion -iv-users"
</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>Global Analyses
</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>
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<pre>Created <span class=""><a href="attachment.cgi?id=21573" name="attach_21573" title="reproducer">attachment 21573</a> <a href="attachment.cgi?id=21573&action=edit" title="reproducer">[details]</a></span>
reproducer
opt -loop-deletion -iv-users -S -o - bbi-25433.ll
crashes with
Stack dump:
0. Program arguments: build-all/bin/opt -loop-deletion -iv-users -S -o -
bbi-25433.ll
1. Running pass 'Function Pass Manager' on module 'bbi-25433.ll'.
2. Running pass 'Loop Pass Manager' on function '@test'
3. Releasing pass 'Induction Variable Users'
#0 0x000000000228a2e4 PrintStackTraceSignalHandler(void*)
(build-all/bin/opt+0x228a2e4)
#1 0x00000000022882d0 llvm::sys::RunSignalHandlers()
(build-all/bin/opt+0x22882d0)
#2 0x000000000228a648 SignalHandler(int) (build-all/bin/opt+0x228a648)
#3 0x00007f02c353e330 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x10330)
#4 0x000000000168d635 llvm::IVUsersWrapperPass::releaseMemory()
(build-all/bin/opt+0x168d635)
#5 0x0000000001c96e13 llvm::PMDataManager::freePass(llvm::Pass*,
llvm::StringRef, llvm::PassDebuggingString) (build-all/bin/opt+0x1c96e13)
#6 0x00000000016fce0a llvm::LPPassManager::runOnFunction(llvm::Function&)
(build-all/bin/opt+0x16fce0a)
#7 0x0000000001c999dd llvm::FPPassManager::runOnFunction(llvm::Function&)
(build-all/bin/opt+0x1c999dd)
#8 0x0000000001c99c98 llvm::FPPassManager::runOnModule(llvm::Module&)
(build-all/bin/opt+0x1c99c98)
#9 0x0000000001c9a0fa llvm::legacy::PassManagerImpl::run(llvm::Module&)
(build-all/bin/opt+0x1c9a0fa)
#10 0x000000000078cd45 main (build-all/bin/opt+0x78cd45)
#11 0x00007f02c2118f45 __libc_start_main
/build/eglibc-ripdx6/eglibc-2.19/csu/libc-start.c:321:0
#12 0x000000000077191d _start (build-all/bin/opt+0x77191d)
Segmentation fault
This seems to be old. I tried with some build from late 2016 and that crashes
too.</pre>
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