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<base href="http://llvm.org/bugs/" />
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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 --- - lib/CodeGen/LexicalScopes.cpp:179: Assertion `DISubprogram(Scope).describes(MF->getFunction())' failed."
href="http://llvm.org/bugs/show_bug.cgi?id=22064">22064</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>lib/CodeGen/LexicalScopes.cpp:179: Assertion `DISubprogram(Scope).describes(MF->getFunction())' failed.
</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>normal
</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>mcrosier@codeaurora.org
</td>
</tr>
<tr>
<th>CC</th>
<td>dblaikie@gmail.com, llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>The above assertion began showing up in our 12/29 nightlies. I did not verify
against ToT.
Reduced test case:
------------------------------------------
$> more test.cc
#include <fstream>
bool foo(const std::string &f) {
std::ifstream in(f.c_str());
if (!in)
std::ofstream out(f.c_str());
}
------------------------------------------
Reproduce with:
clang -c -o test.o -mcpu=cortex-a53 -O2 -g test.cc
Full backtrace:
------------------------------------------
clang-3.6:
/prj/llvm-arm/home/nightly/src/community-mainline/llvm/lib/CodeGen/LexicalScopes.cpp:179:
llvm::LexicalScope*
llvm::LexicalScopes::getOrCreateRegularScope(llvm::MDNode*): Assertion
`DISubprogram(Scope).describes(MF->getFunction())' failed.
#0 0x100f8e2 llvm::sys::PrintStackTrace(_IO_FILE*)
(/prj/llvm-arm/home/nightly/install/community-mainline/cross/2014-12-29/bin/clang-3.6+0x100f8e2)
#1 0x100dad1 SignalHandler(int)
(/prj/llvm-arm/home/nightly/install/community-mainline/cross/2014-12-29/bin/clang-3.6+0x100dad1)
#2 0x7f6cfd1898f0 __restore_rt (/lib/libpthread.so.0+0xf8f0)
#3 0x7f6cfc467b25 gsignal
/build/buildd/eglibc-2.11.1/signal/../nptl/sysdeps/unix/sysv/linux/raise.c:64:0
#4 0x7f6cfc46b670 abort /build/buildd/eglibc-2.11.1/stdlib/abort.c:94:0
#5 0x7f6cfc4609f1 __assert_fail
/build/buildd/eglibc-2.11.1/assert/assert.c:81:0
#6 0xc4b30c
(/prj/llvm-arm/home/nightly/install/community-mainline/cross/2014-12-29/bin/clang-3.6+0xc4b30c)
#7 0xc49f45 llvm::LexicalScopes::getOrCreateLexicalScope(llvm::DebugLoc)
(/prj/llvm-arm/home/nightly/install/community-mainline/cross/2014-12-29/bin/clang-3.6+0xc49f45)
#8 0xc4b384 llvm::LexicalScopes::getMachineBasicBlocks(llvm::DebugLoc,
llvm::SmallPtrSetImpl<llvm::MachineBasicBlock const*>&)
(/prj/llvm-arm/home/nightly/install/community-mainline/cross/2014-12-29/bin/clang-3.6+0xc4b384)
#9 0xbf5386 (anonymous
namespace)::UserValueScopes::dominates(llvm::MachineBasicBlock*)
(/prj/llvm-arm/home/nightly/install/community-mainline/cross/2014-12-29/bin/clang-3.6+0xbf5386)
#10 0xbfdd0f (anonymous
namespace)::UserValue::computeIntervals(llvm::MachineRegisterInfo&,
llvm::TargetRegisterInfo const&, llvm::LiveIntervals&,
llvm::MachineDominatorTree&, (anonymous namespace)::UserValueScopes&)
(/prj/llvm-arm/home/nightly/install/community-main
line/cross/2014-12-29/bin/clang-3.6+0xbfdd0f)
#11 0xbff476
llvm::LiveDebugVariables::runOnMachineFunction(llvm::MachineFunction&)
(/prj/llvm-arm/home/nightly/install/community-mainline/cross/2014-12-29/bin/clang-3.6+0xbff476)
#12 0xd2c78f llvm::FPPassManager::runOnFunction(llvm::Function&)
(/prj/llvm-arm/home/nightly/install/community-mainline/cross/2014-12-29/bin/clang-3.6+0xd2c78f)
#13 0xd2cbfb llvm::FPPassManager::runOnModule(llvm::Module&)
(/prj/llvm-arm/home/nightly/install/community-mainline/cross/2014-12-29/bin/clang-3.6+0xd2cbfb)
#14 0xd2cf3d llvm::legacy::PassManagerImpl::run(llvm::Module&)
(/prj/llvm-arm/home/nightly/install/community-mainline/cross/2014-12-29/bin/clang-3.6+0xd2cf3d)
#15 0x14169c6 clang::EmitBackendOutput(clang::DiagnosticsEngine&,
clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions
const&, llvm::StringRef, llvm::Module*, clang::BackendAction,
llvm::raw_ostream*) (/prj/llvm-arm/home/nightly/install/commu
nity-mainline/cross/2014-12-29/bin/clang-3.6+0x14169c6)
#16 0x1408a5c clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&)
(/prj/llvm-arm/home/nightly/install/community-mainline/cross/2014-12-29/bin/clang-3.6+0x1408a5c)
#17 0x19067a3 clang::ParseAST(clang::Sema&, bool, bool)
(/prj/llvm-arm/home/nightly/install/community-mainline/cross/2014-12-29/bin/clang-3.6+0x19067a3)
#18 0x140976b clang::CodeGenAction::ExecuteAction()
(/prj/llvm-arm/home/nightly/install/community-mainline/cross/2014-12-29/bin/clang-3.6+0x140976b)
#19 0x118ead6 clang::FrontendAction::Execute()
(/prj/llvm-arm/home/nightly/install/community-mainline/cross/2014-12-29/bin/clang-3.6+0x118ead6)
#20 0x116e169 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/prj/llvm-arm/home/nightly/install/community-mainline/cross/2014-12-29/bin/clang-3.6+0x116e169)
#21 0x121661e clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/prj/llvm-arm/home/nightly/install/community-mainline/cross/2014-12-29/bin/clang-3.6+0x121661e)
#22 0x69ba58 cc1_main(llvm::ArrayRef<char const*>, char const*, void*)
(/prj/llvm-arm/home/nightly/install/community-mainline/cross/2014-12-29/bin/clang-3.6+0x69ba58)
#23 0x67bd16 main
(/prj/llvm-arm/home/nightly/install/community-mainline/cross/2014-12-29/bin/clang-3.6+0x67bd16)
#24 0x7f6cfc452c4d __libc_start_main
/build/buildd/eglibc-2.11.1/csu/libc-start.c:258:0
#25 0x6980c9 _start
(/prj/llvm-arm/home/nightly/install/community-mainline/cross/2014-12-29/bin/clang-3.6+0x6980c9)</pre>
</div>
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