Closed as duplicate of#84315
Description
See:
typedef __attribute__((__ext_vector_type__(2))) float float2;
struct vec2 {
_Complex float v;
public:
constexpr vec2(float x, float y) {
__real(v) = x;
}
};
constexpr vec2 S = vec2(1.0, 1.0);https://godbolt.org/z/Grds7av5Y
The original report used vectors, but it also happens with the not-so-recent _Complex.
Backtrace:
clang++: /root/llvm-project/llvm/tools/clang/lib/AST/ExprConstant.cpp:4071: typename SubobjectHandler::result_type findSubobject({anonymous}::EvalInfo&, const clang::Expr*, const {anonymous}::CompleteObject&, const {anonymous}::SubobjectDesignator&, SubobjectHandler&) [with SubobjectHandler = {anonymous}::ModifySubobjectHandler; typename SubobjectHandler::result_type = bool]: Assertion `O->isComplexFloat()' 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 -fno-verbose-asm -S --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -fcolor-diagnostics -fno-crash-diagnostics -std=c++20 <source>
1. <source>:12:34: current parser token ';'
#0 0x0000000003f99d48 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f99d48)
#1 0x0000000003f979d4 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f979d4)
#2 0x0000000003edc608 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x000070c8a7842520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x000070c8a78969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#5 0x000070c8a7842476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x000070c8a78287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x000070c8a782871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x000070c8a7839e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x00000000078c3013 handleAssignment((anonymous namespace)::EvalInfo&, clang::Expr const*, (anonymous namespace)::LValue const&, clang::QualType, clang::APValue&) ExprConstant.cpp:0:0
#10 0x00000000078f7ead clang::StmtVisitorBase<llvm::make_const_ptr, (anonymous namespace)::LValueExprEvaluator, bool>::Visit(clang::Stmt const*) ExprConstant.cpp:0:0
#11 0x00000000078f888d EvaluateLValue(clang::Expr const*, (anonymous namespace)::LValue&, (anonymous namespace)::EvalInfo&, bool) ExprConstant.cpp:0:0
#12 0x00000000078cc266 Evaluate(clang::APValue&, (anonymous namespace)::EvalInfo&, clang::Expr const*) ExprConstant.cpp:0:0
#13 0x00000000078ccc14 EvaluateIgnoredValue((anonymous namespace)::EvalInfo&, clang::Expr const*) ExprConstant.cpp:0:0
#14 0x00000000078efdfc EvaluateStmt((anonymous namespace)::StmtResult&, (anonymous namespace)::EvalInfo&, clang::Stmt const*, clang::SwitchCase const*) (.part.0) ExprConstant.cpp:0:0
#15 0x00000000078f0228 EvaluateStmt((anonymous namespace)::StmtResult&, (anonymous namespace)::EvalInfo&, clang::Stmt const*, clang::SwitchCase const*) (.part.0) ExprConstant.cpp:0:0
#16 0x0000000007921593 HandleConstructorCall(clang::Expr const*, (anonymous namespace)::LValue const&, (anonymous namespace)::CallRef, clang::CXXConstructorDecl const*, (anonymous namespace)::EvalInfo&, clang::APValue&) ExprConstant.cpp:0:0
#17 0x000000000792195f HandleConstructorCall(clang::Expr const*, (anonymous namespace)::LValue const&, llvm::ArrayRef<clang::Expr const*>, clang::CXXConstructorDecl const*, (anonymous namespace)::EvalInfo&, clang::APValue&) ExprConstant.cpp:0:0