Closed
Description
The following valid code crashes
int one = 1;
auto factory(int& x = one) {
return [&](this auto self) {
x;
};
};
using Base = decltype(factory());
struct Derived : Base {
Derived() : Base(factory()) {}
};
int main() {
Derived d;
d();
}https://godbolt.org/z/PGW7s531a
clang++: /root/llvm-project/clang/lib/CodeGen/CGValue.h:277: void clang::CodeGen::LValue::initializeSimpleLValue(clang::CodeGen::Address, clang::QualType, clang::CodeGen::LValueBaseInfo, clang::CodeGen::TBAAAccessInfo, clang::ASTContext&): Assertion `Addr.getBasePointer()->getType()->isPointerTy()' 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++ -gdwarf-4 -g -o /app/output.s -mllvm --x86-asm-syntax=intel -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>:3:12: Generating code for declaration 'factory(int &)::(anonymous class)::operator()'
#0 0x0000000003945d28 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3945d28)
#1 0x0000000003943a0c llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3943a0c)
#2 0x0000000003889f78 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x00007f6c4c242520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x00007f6c4c2969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#5 0x00007f6c4c242476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x00007f6c4c2287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x00007f6c4c22871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x00007f6c4c239e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x0000000003c5e24c clang::CodeGen::LValue::MakeAddr(clang::CodeGen::Address, clang::QualType, clang::ASTContext&, clang::CodeGen::LValueBaseInfo, clang::CodeGen::TBAAAccessInfo) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3c5e24c)
#10 0x000000000406b34f clang::CodeGen::CodeGenFunction::EmitLValueForField(clang::CodeGen::LValue, clang::FieldDecl const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x406b34f)
#11 0x000000000406cc1d clang::CodeGen::CodeGenFunction::EmitLValueForLambdaField(clang::FieldDecl const*, llvm::Value*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x406cc1d)
#12 0x0000000004079515 clang::CodeGen::CodeGenFunction::EmitDeclRefLValue(clang::DeclRefExpr const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4079515)
#13 0x0000000004076402 clang::CodeGen::CodeGenFunction::EmitLValueHelper(clang::Expr const*, clang::CodeGen::KnownNonNull_t) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4076402)
#14 0x0000000004082845 clang::CodeGen::CodeGenFunction::EmitIgnoredExpr(clang::Expr const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4082845)
#15 0x0000000003c6f195 clang::CodeGen::CodeGenFunction::EmitStmt(clang::Stmt const*, llvm::ArrayRef<clang::Attr const*>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3c6f195)
#16 0x0000000003c75a5c clang::CodeGen::CodeGenFunction::EmitCompoundStmtWithoutScope(clang::CompoundStmt const&, bool, clang::CodeGen::AggValueSlot) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3c75a5c)
#17 0x0000000003cd8405 clang::CodeGen::CodeGenFunction::EmitFunctionBody(clang::Stmt const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3cd8405)
#18 0x0000000003cebddc clang::CodeGen::CodeGenFunction::GenerateCode(clang::GlobalDecl, llvm::Function*, clang::CodeGen::CGFunctionInfo const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3cebddc)
#19 0x0000000003d4b442 clang::CodeGen::CodeGenModule::EmitGlobalFunctionDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3d4b442)
#20 0x0000000003d45d05 clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3d45d05)
#21 0x0000000003d51dad clang::CodeGen::CodeGenModule::EmitDeferred() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3d51dad)
#22 0x0000000003d54653 clang::CodeGen::CodeGenModule::Release() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3d