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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 - AggressiveInstCombine crash"
href="https://bugs.llvm.org/show_bug.cgi?id=36169">36169</a>
</td>
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<tr>
<th>Summary</th>
<td>AggressiveInstCombine crash
</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>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>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=19782" name="attach_19782" title="reduced testcase">attachment 19782</a> <a href="attachment.cgi?id=19782&action=edit" title="reduced testcase">[details]</a></span>
reduced testcase
bin/opt -mtriple=s390x-linux-gnu -mcpu=z13 tc_aggr_instcomb.ll -o out.ll
-inline -early-cse-memssa -simplifycfg -aggressive-instcombine -S
#0 0x0000000002d318a8 llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(bin/opt+0x2d318a8)
#1 0x0000000002d2f846 llvm::sys::RunSignalHandlers() (bin/opt+0x2d2f846)
#2 0x0000000002d2f9b8 SignalHandler(int) (bin/opt+0x2d2f9b8)
#3 0x000000000554dcee
#4 0x00000000027bdaf0 llvm::Type::getScalarSizeInBits() const
(bin/opt+0x27bdaf0)
#5 0x00000000020a436c llvm::TruncInstCombine::getBestTruncatedType()
(bin/opt+0x20a436c)
#6 0x00000000020a44d0 llvm::TruncInstCombine::run(llvm::Function&)
(bin/opt+0x20a44d0)
#7 0x000000000209eb7e (anonymous
namespace)::AggressiveInstCombinerLegacyPass::runOnFunction(llvm::Function&)
(bin/opt+0x209eb7e)
#8 0x000000000277bede llvm::FPPassManager::runOnFunction(llvm::Function&)
(bin/opt+0x277bede)
#9 0x000000000210f8b4 (anonymous
namespace)::CGPassManager::runOnModule(llvm::Module&) (bin/opt+0x210f8b4)
#10 0x000000000277ccee llvm::legacy::PassManagerImpl::run(llvm::Module&)
(bin/opt+0x277ccee)
#11 0x00000000013190ba main (bin/opt+0x13190ba)
#12 0x000003fffd72306a __libc_start_main (/lib64/libc.so.6+0x2306a)
#13 0x0000000001381a9e _start (bin/opt+0x1381a9e)
Stack dump:
0. Program arguments: bin/opt -mtriple=s390x-linux-gnu -mcpu=z13
tc_aggr_instcomb.ll -o out.ll -inline -early-cse-memssa -simplifycfg
-aggressive-instcombine -S
1. Running pass 'CallGraph Pass Manager' on module 'tc_aggr_instcomb.ll'.
2. Running pass 'Combine pattern based expressions' on function '@3'
Segmentation fault (core dumped)</pre>
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