| Issue |
107843
|
| Summary |
Clang crashes on incorrect code with build compiler returned: 254
|
| Labels |
clang
|
| Assignees |
|
| Reporter |
Strke
|
Reproducer: https://gcc.godbolt.org/z/dj3765YPn (assertions trunkļ¼
```
#include <iostream>
class Base;
class Derived;
class DerivedClass2;
class Base
{
public:
Base() = default;
Base(const Base&) {}
virtual ~Base() = default;
virtual bool operator==(const Derived&) const noexcept {}
virtual bool operator<(const Base&) const noexcept {}
protected:
DerivedClass2 obj;
};
class Derived : public Base
{
public:
bool operator==(const Derived&) const = default;
bool operator<(const Base&) const = default;
};
class DerivedClass2 : public Derived
{
public:
bool operator==(const Derived&) const = default;
bool operator<(const Base&) const = default;
};
class DerivedClass : public Derived
{
public:
bool operator==(const Derived&) const = default;
bool operator<(const Base&) const = default;
protected:
Base obj(const Derived&);
};
DerivedClass2 obj{};
int main()
{
std::cout << "ok";
}
```
```
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: /opt/compiler-explorer/clang-assertions-trunk-20240909/bin/clang-20 -cc1 -triple x86_64-unknown-linux-gnu -emit-obj -dumpdir /app/output.s- -disable-free -clear-ast-before-backend -main-file-name example.cpp -mrelocation-model pic -pic-level 2 -pic-is-pie -mframe-pointer=all -fmath-errno -ffp-contract=on -fno-rounding-math -fno-verbose-asm -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debug-info-kind=constructor -dwarf-version=4 -debugger-tuning=gdb -fdebug-compilation-dir=/app -fcoverage-compilation-dir=/app -resource-dir /opt/compiler-explorer/clang-assertions-trunk-20240909/lib/clang/20 -internal-isystem /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../include/c++/15.0.0 -internal-isystem /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../include/c++/15.0.0/x86_64-linux-gnu -internal-isystem /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../include/c++/15.0.0/backward -internal-isystem /opt/compiler-explorer/clang-assertions-trunk-20240909/lib/clang/20/include -internal-isystem /usr/local/include -internal-isystem /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include --std=c++20 -fdeprecated-macro -ferror-limit 19 -fgnuc-version=4.2.1 -fno-implicit-modules -fskip-odr-check-in-gmf -fcxx-exceptions -fexceptions -fcolor-diagnostics -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /tmp/example-338b0c.o -x c++ <source>
1. <source>:34:2: current parser token ';'
2. <source>:29:1: parsing struct/union/class body 'DerivedClass2'
#0 0x0000000003b258d8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk-20240909/bin/clang-20+0x3b258d8)
#1 0x0000000003b2301c SignalHandler(int) Signals.cpp:0:0
#2 0x0000725aa1a42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#3 0x0000000001abfe06 _ZN4llvm7hashing6detail23hash_combine_range_implIKjEENSt9enable_ifIXsrNS1_16is_hashable_dataIT_EE5valueENS_9hash_codeEE4typeEPS6_SB_ (/opt/compiler-explorer/clang-assertions-trunk-20240909/bin/clang-20+0x1abfe06)
#4 0x0000000003a78db1 llvm::FoldingSetBase::FindNodeOrInsertPos(llvm::FoldingSetNodeID const&, void*&, llvm::FoldingSetBase::FoldingSetInfo const&) (/opt/compiler-explorer/clang-assertions-trunk-20240909/bin/clang-20+0x3a78db1)
#5 0x000000000793da12 clang::DeclarationNameTable::getCXXDestructorName(clang::CanQual<clang::Type>) (/opt/compiler-explorer/clang-assertions-trunk-20240909/bin/clang-20+0x793da12)
#6 0x0000000007954f58 clang::CXXRecordDecl::getDestructor() const (/opt/compiler-explorer/clang-assertions-trunk-20240909/bin/clang-20+0x7954f58)
#7 0x0000000007957659 clang::CXXRecordDecl::hasConstexprDestructor() const (/opt/compiler-explorer/clang-assertions-trunk-20240909/bin/clang-20+0x7957659)
#8 0x0000000006a02d28 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
#9 0x0000000006a02e64 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
#10 0x0000000006a02df9 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
............
#234 0x0000000006a02e64 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
#235 0x0000000006a02df9 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
#236 0x0000000006a02df9 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
#237 0x0000000006a02e64 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
#238 0x0000000006a02df9 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
#239 0x0000000006a02df9 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
#240 0x0000000006a02e64 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
#241 0x0000000006a02df9 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
#242 0x0000000006a02df9 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
#243 0x0000000006a02e64 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
#244 0x0000000006a02df9 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
#245 0x0000000006a02df9 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
#246 0x0000000006a02e64 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
#247 0x0000000006a02df9 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
#248 0x0000000006a02df9 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
#249 0x0000000006a02e64 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
#250 0x0000000006a02df9 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
#251 0x0000000006a02df9 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
#252 0x0000000006a02e64 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
#253 0x0000000006a02df9 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
#254 0x0000000006a02df9 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
#255 0x0000000006a02e64 bool clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const::'lambda'(clang::QualType, auto&&)::operator()<'lambda'(clang::QualType, auto&&)&>(clang::QualType, auto&&) const (.isra.0) SemaDeclCXX.cpp:0:0
clang++: error: unable to execute command: Segmentation fault (core dumped)
clang++: error: clang frontend command failed due to signal (use -v to see invocation)
Execution build compiler returned: 254
```
![]()
_______________________________________________
llvm-bugs mailing list
[email protected]
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
