jgorbe added a comment.
Hi,
I found a clang crash that seems to be caused by this patch. Here's a reduced
test case:
template <class>
class a {
public:
~a();
void b();
};
template <class c>
a<c>::~a() try {
b();
} catch (...) {
}
class d {
public:
d(const char *, int);
a<int> e;
}
d("", 1);
Building it with `clang -c -frounding-math` results in the following crash:
Stack dump:
0. Program arguments:
/usr/local/google/home/jgorbe/code/llvm-build/bin/clang-10 -cc1 -triple
x86_64-unknown-linux-gnu -emit-obj -mrelax-all -disable-free -main-fi
le-name repro.cc -mrelocation-model static -mthread-model posix
-mframe-pointer=all -fmath-errno -frounding-math -masm-verbose
-mconstructor-aliases -munwind-tables -fu
se-init-array -target-cpu x86-64 -dwarf-column-info -debugger-tuning=gdb
-resource-dir /usr/local/google/home/jgorbe/code/llvm-build/lib/clang/10.0.0
-internal-isystem
/usr/lib/gcc/x86_64-linux-gnu/8/../../../../include/c++/8 -internal-isystem
/usr/lib/gcc/x86_64-linux-gnu/8/../../../../include/x86_64-linux-gnu/c++/8
-internal-isystem
/usr/lib/gcc/x86_64-linux-gnu/8/../../../../include/x86_64-linux-gnu/c++/8
-internal-isystem
/usr/lib/gcc/x86_64-linux-gnu/8/../../../../include/c++/8/backward -intern
al-isystem /usr/local/include -internal-isystem
/usr/local/google/home/jgorbe/code/llvm-build/lib/clang/10.0.0/include
-internal-externc-isystem /usr/include/x86_64-lin
ux-gnu -internal-externc-isystem /include -internal-externc-isystem
/usr/include -fdeprecated-macro -fdebug-compilation-dir
/usr/local/google/home/jgorbe/repro4 -ferror
-limit 19 -fmessage-length 0 -fgnuc-version=4.2.1 -fobjc-runtime=gcc
-fcxx-exceptions -fexceptions -fdiagnostics-show-option -fcolor-diagnostics
-faddrsig -o /tmp/repro
-c9cae0.o -x c++ repro.cc
1. <eof> parser at end of file
2. Per-file LLVM IR generation
3. repro.cc:4:3: Generating code for declaration 'a<int>::~a'
#0 0x0000000007fb2b27 llvm::sys::PrintStackTrace(llvm::raw_ostream&)
/usr/local/google/home/jgorbe/code/llvm/llvm/lib/Support/Unix/Signals.inc:532:11
#1 0x0000000007fb2cc9 PrintStackTraceSignalHandler(void*)
/usr/local/google/home/jgorbe/code/llvm/llvm/lib/Support/Unix/Signals.inc:593:1
#2 0x0000000007fb160b llvm::sys::RunSignalHandlers()
/usr/local/google/home/jgorbe/code/llvm/llvm/lib/Support/Signals.cpp:67:5
#3 0x0000000007fb3415 SignalHandler(int)
/usr/local/google/home/jgorbe/code/llvm/llvm/lib/Support/Unix/Signals.inc:384:1
#4 0x00007f6789ec03a0 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x123a0)
#5 0x000000000739af45
llvm::AttributeList::hasFnAttribute(llvm::Attribute::AttrKind) const
/usr/local/google/home/jgorbe/code/llvm/llvm/lib/IR/Attributes.cpp:1315:10
#6 0x00000000051a1964
llvm::Function::hasFnAttribute(llvm::Attribute::AttrKind) const
/usr/local/google/home/jgorbe/code/llvm/llvm/include/llvm/IR/Function.h:324:5
#7 0x00000000052421a1 llvm::IRBuilderBase::setConstrainedFPFunctionAttr()
/usr/local/google/home/jgorbe/code/llvm/llvm/include/llvm/IR/IRBuilder.h:262:9
#8 0x0000000005241b60
llvm::IRBuilderBase::setConstrainedFPCallAttr(llvm::CallInst*)
/usr/local/google/home/jgorbe/code/llvm/llvm/include/llvm/IR/IRBuilder.h:271:3
#9 0x00000000084a516b llvm::IRBuilder<llvm::ConstantFolder,
clang::CodeGen::CGBuilderInserter>::CreateCall(llvm::FunctionType*,
llvm::Value*, llvm::ArrayRef<llvm::Value*>,
llvm::ArrayRef<llvm::OperandBundleDefT<llvm::Value*> >, llvm::Twine const&,
llvm::MDNode*)
/usr/local/google/home/jgorbe/code/llvm/llvm/include/llvm/IR/IRBuilder.h:2274:9
#10 0x00000000084a4488 llvm::IRBuilder<llvm::ConstantFolder,
clang::CodeGen::CGBuilderInserter>::CreateCall(llvm::FunctionCallee,
llvm::ArrayRef<llvm::Value*>,
llvm::ArrayRef<llvm::OperandBundleDefT<llvm::Value*> >, llvm::Twine const&,
llvm::MDNode*)
/usr/local/google/home/jgorbe/code/llvm/llvm/include/llvm/IR/IRBuilder.h:2288:5
#11 0x000000000849288c
clang::CodeGen::CodeGenFunction::EmitRuntimeCall(llvm::FunctionCallee,
llvm::ArrayRef<llvm::Value*>, llvm::Twine const&)
/usr/local/google/home/jgorbe/code/llvm/clang/lib/CodeGen/CGCall.cpp:3726:26
#12 0x000000000849278d
clang::CodeGen::CodeGenFunction::EmitNounwindRuntimeCall(llvm::FunctionCallee,
llvm::ArrayRef<llvm::Value*>, llvm::Twine const&)
/usr/local/google/home/jgorbe/code/llvm/clang/lib/CodeGen/CGCall.cpp:3691:19
#13 0x000000000897b3e4 (anonymous
namespace)::ItaniumCXXABI::emitTerminateForUnexpectedException(clang::CodeGen::CodeGenFunction&,
llvm::Value*)
/usr/local/google/home/jgorbe/code/llvm/clang/lib/CodeGen/ItaniumCXXABI.cpp:4364:5
#14 0x000000000865698d clang::CodeGen::CodeGenFunction::getTerminateHandler()
/usr/local/google/home/jgorbe/code/llvm/clang/lib/CodeGen/CGException.cpp:1504:19
#15 0x00000000086561de
clang::CodeGen::CodeGenFunction::getEHDispatchBlock(clang::CodeGen::EHScopeStack::stable_iterator)
/usr/local/google/home/jgorbe/code/llvm/clang/lib/CodeGen/CGException.cpp:630:21
#16 0x000000000864e7d8 clang::CodeGen::CodeGenFunction::PopCleanupBlock(bool)
/usr/local/google/home/jgorbe/code/llvm/clang/lib/CodeGen/CGCleanup.cpp:970:23
#17 0x000000000864d053
clang::CodeGen::CodeGenFunction::PopCleanupBlocks(clang::CodeGen::EHScopeStack::stable_iterator,
std::initializer_list<llvm::Value**>)
/usr/local/google/home/jgorbe/code/llvm/clang/lib/CodeGen/CGCleanup.cpp:423:3
#18 0x000000000864eae3
clang::CodeGen::CodeGenFunction::PopCleanupBlocks(clang::CodeGen::EHScopeStack::stable_iterator,
unsigned long, std::initializer_list<llvm::Value**>)
/usr/local/google/home/jgorbe/code/llvm/clang/lib/CodeGen/CGCleanup.cpp:479:19
#19 0x000000000864404d
clang::CodeGen::CodeGenFunction::RunCleanupsScope::ForceCleanup(std::initializer_list<llvm::Value**>)
/usr/local/google/home/jgorbe/code/llvm/clang/lib/CodeGen/CodeGenFunction.h:756:11
#20 0x0000000008655cd4
clang::CodeGen::CodeGenFunction::ExitCXXTryStmt(clang::CXXTryStmt const&, bool)
/usr/local/google/home/jgorbe/code/llvm/clang/lib/CodeGen/CGException.cpp:1234:16
#21 0x000000000868bf3c
clang::CodeGen::CodeGenFunction::EmitDestructorBody(clang::CodeGen::FunctionArgList&)
/usr/local/google/home/jgorbe/code/llvm/clang/lib/CodeGen/C
GClass.cpp:1531:1
#22 0x0000000008673ce5
clang::CodeGen::CodeGenFunction::GenerateCode(clang::GlobalDecl,
llvm::Function*, clang::CodeGen::CGFunctionInfo const&)
/usr/local/google/home/jgorbe/code/llvm/clang/lib/CodeGen/CodeGenFunction.cpp:1256:5
#23 0x00000000087aea54
clang::CodeGen::CodeGenModule::codegenCXXStructor(clang::GlobalDecl)
/usr/local/google/home/jgorbe/code/llvm/clang/lib/CodeGen/CGCXX.cpp:214:3
#24 0x0000000008980a5e (anonymous
namespace)::ItaniumCXXABI::emitCXXStructor(clang::GlobalDecl)
/usr/local/google/home/jgorbe/code/llvm/clang/lib/CodeGen/ItaniumCXXABI.cpp:4003:19
#25 0x000000000853c297
clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl,
llvm::GlobalValue*)
/usr/local/google/home/jgorbe/code/llvm/clang/lib/CodeGen/CodeGenModule.cpp:2816:9
#26 0x0000000008532fb9 clang::CodeGen::CodeGenModule::EmitDeferred()
/usr/local/google/home/jgorbe/code/llvm/clang/lib/CodeGen/CodeGenModule.cpp:2132:5
#27 0x0000000008533004 clang::CodeGen::CodeGenModule::EmitDeferred()
/usr/local/google/home/jgorbe/code/llvm/clang/lib/CodeGen/CodeGenModule.cpp:2138:7
#28 0x0000000008533004 clang::CodeGen::CodeGenModule::EmitDeferred()
/usr/local/google/home/jgorbe/code/llvm/clang/lib/CodeGen/CodeGenModule.cpp:2138:7
#29 0x0000000008533004 clang::CodeGen::CodeGenModule::EmitDeferred()
/usr/local/google/home/jgorbe/code/llvm/clang/lib/CodeGen/CodeGenModule.cpp:2138:7
#30 0x0000000008531692 clang::CodeGen::CodeGenModule::Release()
/usr/local/google/home/jgorbe/code/llvm/clang/lib/CodeGen/CodeGenModule.cpp:393:3
#31 0x0000000008e96d12 (anonymous
namespace)::CodeGeneratorImpl::HandleTranslationUnit(clang::ASTContext&)
/usr/local/google/home/jgorbe/code/llvm/clang/lib/CodeGen/ModuleBuilder.cpp:0:18
#32 0x0000000008e90d99
clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&)
/usr/local/google/home/jgorbe/code/llvm/clang/lib/CodeGen/CodeGenAction.cpp:242:14
#33 0x000000000af2c3ce clang::ParseAST(clang::Sema&, bool, bool)
/usr/local/google/home/jgorbe/code/llvm/clang/lib/Parse/ParseAST.cpp:178:12
#34 0x0000000008cea5c2 clang::ASTFrontendAction::ExecuteAction()
/usr/local/google/home/jgorbe/code/llvm/clang/lib/Frontend/FrontendAction.cpp:1044:1
#35 0x0000000008e8e72b clang::CodeGenAction::ExecuteAction()
/usr/local/google/home/jgorbe/code/llvm/clang/lib/CodeGen/CodeGenAction.cpp:1089:1
#36 0x0000000008ce9f88 clang::FrontendAction::Execute()
/usr/local/google/home/jgorbe/code/llvm/clang/lib/Frontend/FrontendAction.cpp:939:7
#37 0x0000000008c193b3
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
/usr/local/google/home/jgorbe/code/llvm/clang/lib/Frontend/CompilerInstance.cpp:964:23
#38 0x0000000008e78e19
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
/usr/local/google/home/jgorbe/code/llvm/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp:290:8
#39 0x000000000517a8d2 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*)
/usr/local/google/home/jgorbe/code/llvm/clang/tools/driver/cc1_main.cpp:250:13
#40 0x000000000516e5ff ExecuteCC1Tool(llvm::ArrayRef<char const*>,
llvm::StringRef)
/usr/local/google/home/jgorbe/code/llvm/clang/tools/driver/driver.cpp:309:5
#41 0x000000000516d9c9 main
/usr/local/google/home/jgorbe/code/llvm/clang/tools/driver/driver.cpp:382:5
#42 0x00007f678914e52b __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x2352b)
#43 0x000000000516d1ba _start
(/usr/local/google/home/jgorbe/code/llvm-build/bin/clang-10+0x516d1ba)
clang-10: error: unable to execute command: Segmentation fault
clang-10: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 10.0.0 (https://github.com/llvm/llvm-project.git
f2e65447b3cb6340883957e033e77095a025ebdc)
Repository:
rL LLVM
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D62731/new/
https://reviews.llvm.org/D62731
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