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<head>
<base href="https://bugs.llvm.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - clang crashes at -O3 -mllvm -polly -mllvm -polly-parallel"
href="https://bugs.llvm.org/show_bug.cgi?id=38494">38494</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>clang crashes at -O3 -mllvm -polly -mllvm -polly-parallel
</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>Common Code Generator Code
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>m-takahiro@jp.fujitsu.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>The following is a test program.
------------ foo.c ------------
#define NI (32)
#define NJ (32)
#define NK (32)
#define NA (32)
void test(double r[NI][NJ][NK], double s[NI][NJ][NK],
int II, int JJ, int KK, int A) {
for (int i = 0; i < II; ++i)
for (int j = 0; j < JJ; ++j)
for (int k = 0; k < KK; ++k)
r[i][j][k] = (s[i][j][k]) * i - j * k + A;
}
-------------------------------
$ clang -O3 -mllvm -polly -mllvm -polly-parallel foo.c
...
1. <eof> parser at end of file
2. Code generation
3. Running pass 'Function Pass Manager' on module 'foo.c'.
4. Running pass 'Machine Common Subexpression Elimination' on function
'@test_polly_subfn'
#0 0x000000000177cfda llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(/opt/llvm/svn-trunk/install/bin/clang-8+0x177cfda)
#1 0x000000000177b7b9 llvm::sys::RunSignalHandlers()
(/opt/llvm/svn-trunk/install/bin/clang-8+0x177b7b9)
#2 0x000000000177b8ed SignalHandler(int)
(/opt/llvm/svn-trunk/install/bin/clang-8+0x177b8ed)
#3 0x00007f33e50c55e0 __restore_rt (/lib64/libpthread.so.0+0xf5e0)
#4 0x00000000011e27b6 (anonymous
namespace)::MachineCSE::PerformCSE(llvm::DomTreeNodeBase<llvm::MachineBasicBlock>*)
(/opt/llvm/svn-trunk/install/bin/clang-8+0x11e27b6)
#5 0x00000000010a3397 llvm::MachineFunctionPass::runOnFunction(llvm::Function&)
(/opt/llvm/svn-trunk/install/bin/clang-8+0x10a3397)
#6 0x0000000001375d2f llvm::FPPassManager::runOnFunction(llvm::Function&)
(/opt/llvm/svn-trunk/install/bin/clang-8+0x1375d2f)
#7 0x0000000001375f13 llvm::FPPassManager::runOnModule(llvm::Module&)
(/opt/llvm/svn-trunk/install/bin/clang-8+0x1375f13)
#8 0x00000000013765bf llvm::legacy::PassManagerImpl::run(llvm::Module&)
(/opt/llvm/svn-trunk/install/bin/clang-8+0x13765bf)
#9 0x000000000191f4ff (anonymous
namespace)::EmitAssemblyHelper::EmitAssembly(clang::BackendAction,
std::unique_ptr<llvm::raw_pwrite_stream,
std::default_delete<llvm::raw_pwrite_stream> >)
(/opt/llvm/svn-trunk/install/bin/clang-8+0x191f4ff)
#10 0x0000000001920e0b clang::EmitBackendOutput(clang::DiagnosticsEngine&,
clang::HeaderSearchOptions const&, clang::CodeGenOptions const&,
clang::TargetOptions const&, clang::LangOptions const&, llvm::DataLayout
const&, llvm::Module*, clang::BackendAction,
std::unique_ptr<llvm::raw_pwrite_stream,
std::default_delete<llvm::raw_pwrite_stream> >)
(/opt/llvm/svn-trunk/install/bin/clang-8+0x1920e0b)
#11 0x00000000020fe676
clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&)
(/opt/llvm/svn-trunk/install/bin/clang-8+0x20fe676)
#12 0x00000000025b651a clang::ParseAST(clang::Sema&, bool, bool)
(/opt/llvm/svn-trunk/install/bin/clang-8+0x25b651a)
#13 0x00000000020fdea4 clang::CodeGenAction::ExecuteAction()
(/opt/llvm/svn-trunk/install/bin/clang-8+0x20fdea4)
#14 0x0000000001d0fede clang::FrontendAction::Execute()
(/opt/llvm/svn-trunk/install/bin/clang-8+0x1d0fede)
#15 0x0000000001ce5c9d
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/opt/llvm/svn-trunk/install/bin/clang-8+0x1ce5c9d)
#16 0x0000000001da7a61
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/opt/llvm/svn-trunk/install/bin/clang-8+0x1da7a61)
#17 0x0000000000abf0c8 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/opt/llvm/svn-trunk/install/bin/clang-8+0xabf0c8)
#18 0x0000000000a4ab69 main (/opt/llvm/svn-trunk/install/bin/clang-8+0xa4ab69)
#19 0x00007f33e3ca9c05 __libc_start_main
/usr/src/debug/glibc-2.17-c758a686/csu/../csu/libc-start.c:308:0
#20 0x0000000000abb687 _start
(/opt/llvm/svn-trunk/install/bin/clang-8+0xabb687)
clang-8: error: unable to execute command: Segmentation fault (core dumped)
clang-8: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 8.0.0 (trunk 339303)
Target: x86_64-unknown-linux-gnu
Thread model: posix</pre>
</div>
</p>
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