| Issue |
176161
|
| Summary |
[Clang] Assertion `E && hasAggregateEvaluationKind(E->getType()) && "Invalid aggregate _expression_ to emit"` failed since 21.1.
|
| Labels |
clang
|
| Assignees |
|
| Reporter |
Xniao
|
***Generated by fuzzer.***
Clang trunk crashed and goes back to 21.1.0 with `-std=c++23` flag.
Compiler Explorer: https://godbolt.org/z/eMccGhzr6
While GCC and Clang 20 accept it.
Same assertion but different stack dump from https://github.com/llvm/llvm-project/issues/94666#issuecomment-2153269190
## Program
```cpp
#include <functional>
template <typename T> struct ConfigFlag { T value; };
template <typename... Flags> struct ConfigSystem {
std::tuple<Flags...> flags;
};
template <unsigned R> class M {
public:
M(const int *arr) {
auto flagProcessing = [] {
struct Configurator {
ConfigSystem<ConfigFlag<bool>, ConfigFlag<bool>> config;
Configurator()
: config({ConfigFlag<bool>(true), ConfigFlag<bool>(false)}) {}
};
Configurator configurator;
};
flagProcessing();
for (unsigned long r = 0; r < R; ++r)
m[r] = arr[r];
}
int m[];
};
int main() { M<2> m(nullptr); }
```
## Stack Dump
```bash
clang++: /root/llvm-project/llvm/tools/clang/lib/CodeGen/CGExprAgg.cpp:2170: void clang::CodeGen::CodeGenFunction::EmitAggExpr(const clang::Expr*, clang::CodeGen::AggValueSlot): Assertion `E && hasAggregateEvaluationKind(E->getType()) && "Invalid aggregate _expression_ to emit"' 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: /opt/compiler-explorer/clang-assertions-trunk/bin/clang++ -g -o /app/output.s -mllvm --x86-asm-syntax=intel -fno-verbose-asm -S --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -fcolor-diagnostics -fno-crash-diagnostics -std=c++23 <source>
1. <eof> parser at end of file
2. Per-file LLVM IR generation
3. <source>:12:9: Generating code for declaration 'M<2>::M(const int *)::(lambda)::operator()()::Configurator::Configurator'
#0 0x00000000043089a8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x43089a8)
#1 0x0000000004305e04 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4305e04)
#2 0x0000000004248118 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x00007aa73c842520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x00007aa73c8969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#5 0x00007aa73c842476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x00007aa73c8287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x00007aa73c82871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x00007aa73c839e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x000000000469878c clang::CodeGen::CodeGenFunction::EmitAggExpr(clang::Expr const*, clang::CodeGen::AggValueSlot) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x469878c)
#10 0x00000000046967a6 (anonymous namespace)::AggExprEmitter::VisitCXXParenListOrInitListExpr(clang::Expr*, llvm::ArrayRef<clang::Expr*>, clang::FieldDecl*, clang::Expr*) CGExprAgg.cpp:0:0
#11 0x0000000004697de0 (anonymous namespace)::AggExprEmitter::Visit(clang::Expr*) CGExprAgg.cpp:0:0
#12 0x000000000469859e clang::CodeGen::CodeGenFunction::EmitAggExpr(clang::Expr const*, clang::CodeGen::AggValueSlot) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x469859e)
#13 0x0000000004b9248e clang::CodeGen::CodeGenFunction::EmitInitializerForField(clang::FieldDecl*, clang::CodeGen::LValue, clang::Expr*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4b9248e)
#14 0x0000000004b92ad7 EmitMemberInitializer(clang::CodeGen::CodeGenFunction&, clang::CXXRecordDecl const*, clang::CXXCtorInitializer*, clang::CXXConstructorDecl const*, clang::CodeGen::FunctionArgList&) CGClass.cpp:0:0
#15 0x0000000004b9f681 clang::CodeGen::CodeGenFunction::EmitCtorPrologue(clang::CXXConstructorDecl const*, clang::CXXCtorType, clang::CodeGen::FunctionArgList&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4b9f681)
#16 0x0000000004ba3587 clang::CodeGen::CodeGenFunction::EmitConstructorBody(clang::CodeGen::FunctionArgList&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4ba3587)
#17 0x00000000048963fd clang::CodeGen::CodeGenFunction::GenerateCode(clang::GlobalDecl, llvm::Function*, clang::CodeGen::CGFunctionInfo const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x48963fd)
#18 0x0000000004b563ff clang::CodeGen::CodeGenModule::codegenCXXStructor(clang::GlobalDecl) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4b563ff)
#19 0x000000000497a2d0 (anonymous namespace)::ItaniumCXXABI::emitCXXStructor(clang::GlobalDecl) ItaniumCXXABI.cpp:0:0
#20 0x00000000048fde56 clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x48fde56)
#21 0x000000000490b4dc clang::CodeGen::CodeGenModule::EmitDeferred() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x490b4dc)
#22 0x000000000490b3f8 clang::CodeGen::CodeGenModule::EmitDeferred() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x490b3f8)
#23 0x000000000490b3f8 clang::CodeGen::CodeGenModule::EmitDeferred() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x490b3f8)
#24 0x000000000490b3f8 clang::CodeGen::CodeGenModule::EmitDeferred() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x490b3f8)
#25 0x000000000490b3f8 clang::CodeGen::CodeGenModule::EmitDeferred() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x490b3f8)
#26 0x000000000490f173 clang::CodeGen::CodeGenModule::Release() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x490f173)
#27 0x0000000004c7212e (anonymous namespace)::CodeGeneratorImpl::HandleTranslationUnit(clang::ASTContext&) ModuleBuilder.cpp:0:0
#28 0x0000000004c6fb45 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c6fb45)
#29 0x0000000006a4ac2c clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a4ac2c)
#30 0x0000000004c70328 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c70328)
#31 0x0000000004f69cd5 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4f69cd5)
#32 0x0000000004ee995e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4ee995e)
#33 0x00000000050649fd clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x50649fd)
#34 0x0000000000dcffee cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdcffee)
#35 0x0000000000dc69ba ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&, llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>) driver.cpp:0:0
#36 0x0000000000dc6b3d int llvm::function_ref<int (llvm::SmallVectorImpl<char const*>&)>::callback_fn<clang_main(int, char**, llvm::ToolContext const&)::'lambda'(llvm::SmallVectorImpl<char const*>&)>(long, llvm::SmallVectorImpl<char const*>&) driver.cpp:0:0
#37 0x0000000004ce3629 void llvm::function_ref<void ()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const::'lambda'()>(long) Job.cpp:0:0
#38 0x00000000042485b4 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x42485b4)
#39 0x0000000004ce3c3f clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const (.part.0) Job.cpp:0:0
#40 0x0000000004ca4612 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4ca4612)
#41 0x0000000004ca55be clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4ca55be)
#42 0x0000000004caca05 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4caca05)
#43 0x0000000000dcc361 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdcc361)
#44 0x0000000000c89a34 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc89a34)
#45 0x00007aa73c829d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#46 0x00007aa73c829e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#47 0x0000000000dc6455 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdc6455)
clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134
```
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