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<base href="https://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [Polly] Invariant Loads: verify function failed"
href="https://llvm.org/bugs/show_bug.cgi?id=25237">25237</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[Polly] Invariant Loads: verify function failed
</td>
</tr>
<tr>
<th>Product</th>
<td>Projects
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</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>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Polly
</td>
</tr>
<tr>
<th>Assignee</th>
<td>polly-dev@googlegroups.com
</td>
</tr>
<tr>
<th>Reporter</th>
<td>tobias@grosser.es
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=15095" name="attach_15095" title="Test case to reproduce the bug">attachment 15095</a> <a href="attachment.cgi?id=15095&action=edit" title="Test case to reproduce the bug">[details]</a></span>
Test case to reproduce the bug
With 250655 opt -polly-codegen -polly-process-unprofitable fails:
opt:
/home/grosser/Projects/polly/git/tools/polly/lib/CodeGen/CodeGeneration.cpp:164:
virtual bool (anonymous namespace)::CodeGeneration::runOnScop(polly::Scop &):
Assertion `!verifyGeneratedFunction(S, *EnteringBB->getParent()) &&
"Verification of generated function failed"' failed.
#0 0x7f752ba4dd8a llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(/home/grosser/Projects/polly/cmake_opt/bin/../lib/libLLVMSupport.so.3.8+0xc1d8a)
#1 0x7f752ba4d3f6 llvm::sys::RunSignalHandlers()
(/home/grosser/Projects/polly/cmake_opt/bin/../lib/libLLVMSupport.so.3.8+0xc13f6)
#2 0x7f752ba4f63a SignalHandler(int)
(/home/grosser/Projects/polly/cmake_opt/bin/../lib/libLLVMSupport.so.3.8+0xc363a)
#3 0x7f752a3dc2f0 (/lib/x86_64-linux-gnu/libc.so.6+0x352f0)
#4 0x7f752a3dc267 gsignal
/build/buildd/glibc-2.21/signal/../sysdeps/unix/sysv/linux/raise.c:55:0
#5 0x7f752a3ddeca abort /build/buildd/glibc-2.21/stdlib/abort.c:91:0
#6 0x7f752a3d503d __assert_fail_base
/build/buildd/glibc-2.21/assert/assert.c:92:0
#7 0x7f752a3d50f2 (/lib/x86_64-linux-gnu/libc.so.6+0x2e0f2)
#8 0x7f7527c9d766
(/home/grosser/Projects/polly/cmake_opt/lib/../lib/libPolly.so+0x96766)
#9 0x7f7527c7b665 polly::ScopPass::runOnRegion(llvm::Region*,
llvm::RGPassManager&)
(/home/grosser/Projects/polly/cmake_opt/lib/../lib/libPolly.so+0x74665)
#10 0x7f752ddd008a llvm::RGPassManager::runOnFunction(llvm::Function&)
(/home/grosser/Projects/polly/cmake_opt/bin/../lib/libLLVMAnalysis.so.3.8+0x16c08a)
#11 0x7f752d134208 llvm::FPPassManager::runOnFunction(llvm::Function&)
(/home/grosser/Projects/polly/cmake_opt/bin/../lib/libLLVMCore.so.3.8+0x1b8208)
#12 0x7f752d13444b llvm::FPPassManager::runOnModule(llvm::Module&)
(/home/grosser/Projects/polly/cmake_opt/bin/../lib/libLLVMCore.so.3.8+0x1b844b)
#13 0x7f752d134905 llvm::legacy::PassManagerImpl::run(llvm::Module&)
(/home/grosser/Projects/polly/cmake_opt/bin/../lib/libLLVMCore.so.3.8+0x1b8905)
#14 0x41fbf1 main (/home/grosser/Projects/polly/cmake_opt/bin/opt+0x41fbf1)
#15 0x7f752a3c7a40 __libc_start_main
/build/buildd/glibc-2.21/csu/libc-start.c:323:0
#16 0x412639 _start (/home/grosser/Projects/polly/cmake_opt/bin/opt+0x412639)
Stack dump:
0. Program arguments: /home/grosser/Projects/polly/cmake_opt/bin/opt -load
/home/grosser/Projects/polly/cmake_opt/lib/LLVMPolly.so -polly-codegen
/tmp/invariant_verify_function_failed.ll
1. Running pass 'Function Pass Manager' on module
'/tmp/invariant_verify_function_failed.ll'.
2. Running pass 'Region Pass Manager' on function '@fileblobSetFilename'
3. Running pass 'Polly - Create LLVM-IR from SCoPs' on basic block
'%land.lhs.true'
The crash disappears if I comment out the call to:
hoistInvariantLoads();</pre>
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