| Issue |
180766
|
| Summary |
[CIR] CodeGen crash on EHScopeStack::find
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
bruteforceboy
|
The following code snippet crashes
```cpp
struct S {
int a;
S(int a) : a(a) {}
~S();
};
void foo() {
{
S s(1);
}
S s(1);
}
```
with (truncated)
```
clang++: ~/llvm-project/clang/lib/CIR/CodeGen/CIRGenCleanup.h:319: clang::CIRGen::EHScopeStack::iterator clang::CIRGen::EHScopeStack::find(stable_iterator) const: Assertion `savePoint.size <= stable_begin().size && "finding savepoint after pop"' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0. Program arguments: bin/clang++ test.cpp -Xclang -fclangir -Xclang -emit-cir -S -o -
1. <eof> parser at end of file
#0 0x000062b98ef2dc70 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (bin/clang+++0x2bb8c70)
#1 0x000062b98ef2b354 llvm::sys::CleanupOnSignal(unsigned long) (bin/clang+++0x2bb6354)
#2 0x000062b98ee5fd38 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x0000727551245330 (/lib/x86_64-linux-gnu/libc.so.6+0x45330)
#4 0x000072755129eb2c __pthread_kill_implementation ./nptl/pthread_kill.c:44:76
#5 0x000072755129eb2c __pthread_kill_internal ./nptl/pthread_kill.c:78:10
#6 0x000072755129eb2c pthread_kill ./nptl/pthread_kill.c:89:10
#7 0x000072755124527e raise ./signal/../sysdeps/posix/raise.c:27:6
#8 0x00007275512288ff abort ./stdlib/abort.c:81:7
#9 0x000072755122881b _nl_load_domain ./intl/loadmsgcat.c:1177:9
#10 0x000072755123b517 (/lib/x86_64-linux-gnu/libc.so.6+0x3b517)
#11 0x000062b99011d6a2 (bin/clang+++0x3da86a2)
#12 0x000062b99010e9d8 clang::CIRGen::CIRGenFunction::emitCall(clang::CIRGen::CIRGenFunctionInfo const&, clang::CIRGen::CIRGenCallee const&, clang::CIRGen::ReturnValueSlot, clang::CIRGen::CallArgList const&, cir::CIRCallOpInterface*, mlir::Location) (bin/clang+++0x3d999d8)
#13 0x000062b99011a00e clang::CIRGen::CIRGenFunction::emitCXXConstructorCall(clang::CXXConstructorDecl const*, clang::CXXCtorType, bool, bool, clang::CIRGen::Address, clang::CIRGen::CallArgList&, clang::SourceLocation) (bin/clang+++0x3da500e)
#14 0x000062b99011a34d clang::CIRGen::CIRGenFunction::emitCXXConstructorCall(clang::CXXConstructorDecl const*, clang::CXXCtorType, bool, bool, clang::CIRGen::AggValueSlot, clang::CXXConstructExpr const*) (bin/clang+++0x3da534d)
```
Command to reproduce `bin/clang++ test.cpp -Xclang -fclangir -Xclang -emit-cir -S -o -`
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