https://bugs.llvm.org/show_bug.cgi?id=52422
Bug ID: 52422
Summary: consteval constructor causes "Assertion
`cast<PointerType>(getOperand(1)->getType())
->isOpaqueOrPointeeTypeMatches(getOperand(0)->getType(
)) && "Ptr must be a pointer to Val type!"' failed"
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: -New Bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected]
At least with clang-13.0.0~rc1-1.fc35.x86_64 and with recent Clang 14 trunk,
> $ cat test.cc
> struct S {
> consteval S() {}
> union {
> int a;
> struct { int b; } c = {0};
> };
> };
> void f() { S(); }
> clang++ -std=c++20 -c test.cc
> test.cc:8:12: warning: expression result unused [-Wunused-value]
> void f() { S(); }
> ^~~
> clang++: llvm/lib/IR/Instructions.cpp:1492: void llvm::StoreInst::AssertOK():
> Assertion `cast<PointerType>(getOperand(1)->getType())
> ->isOpaqueOrPointeeTypeMatches(getOperand(0)->getType()) && "Ptr must be a
> pointer to Val type!"' failed.
[...]
> #7 0x00007fe1bbcf07d3 abort (/lib64/libc.so.6+0x2c7d3)
> #8 0x00007fe1bbcf06fb _nl_load_domain.cold (/lib64/libc.so.6+0x2c6fb)
> #9 0x00007fe1bbcff3a6 (/lib64/libc.so.6+0x3b3a6)
> #10 0x00000000021bf9a2 llvm::Align::Align(unsigned long)
> llvm/include/llvm/Support/Alignment.h:78:5
> #11 0x00000000021bf9a2 llvm::StoreInst::getAlign() const
> llvm/include/llvm/IR/Instructions.h:354:12
> #12 0x00000000021bf9a2 llvm::StoreInst::getAlignment() const
> llvm/include/llvm/IR/Instructions.h:351:42
> #13 0x00000000021bf9a2 llvm::StoreInst::AssertOK()
> llvm/lib/IR/Instructions.cpp:1493:3
> #14 0x00000000021bfb8f llvm::StoreInst::StoreInst(llvm::Value*, llvm::Value*,
> bool, llvm::Align, llvm::Instruction*) llvm/lib/IR/Instructions.cpp:1517:7
> #15 0x0000000000a28250 llvm::Twine::Twine(char const*)
> llvm/include/llvm/ADT/Twine.h:170:14
> #16 0x0000000000a28250 llvm::IRBuilderBase::CreateAlignedStore(llvm::Value*,
> llvm::Value*, llvm::MaybeAlign, bool) llvm/include/llvm/IR/IRBuilder.h:1757:12
> #17 0x0000000002e7fd93
> clang::CodeGen::CodeGenFunction::EmitAggregateStore(llvm::Value*,
> clang::CodeGen::Address, bool) clang/lib/CodeGen/CGCall.cpp:1316:61
> #18 0x0000000002ef5a44 (anonymous
> namespace)::AggExprEmitter::VisitConstantExpr(clang::ConstantExpr*)
> clang/lib/CodeGen/CGExprAgg.cpp:0:11
> #19 0x0000000002efac8c (anonymous
> namespace)::AggExprEmitter::VisitCastExpr(clang::CastExpr*)
> clang/lib/CodeGen/CGExprAgg.cpp:0:0
> #20 0x0000000002ef0737 (anonymous
> namespace)::AggExprEmitter::Visit(clang::Expr*)
> clang/lib/CodeGen/CGExprAgg.cpp:108:3
> #21 0x0000000002ef0737
> clang::CodeGen::CodeGenFunction::EmitAggExpr(clang::Expr const*,
> clang::CodeGen::AggValueSlot) clang/lib/CodeGen/CGExprAgg.cpp:2000:49
> #22 0x0000000002ed0e80 clang::CodeGen::AggValueSlot::isIgnored() const
> clang/lib/CodeGen/CGValue.h:620:17
> #23 0x0000000002ed0e80 clang::CodeGen::AggValueSlot::asRValue() const
> clang/lib/CodeGen/CGValue.h:640:9
> #24 0x0000000002ed0e80
> clang::CodeGen::CodeGenFunction::EmitAnyExpr(clang::Expr const*,
> clang::CodeGen::AggValueSlot, bool) clang/lib/CodeGen/CGExpr.cpp:214:20
> #25 0x0000000002ed0d49
> clang::CodeGen::CodeGenFunction::EmitIgnoredExpr(clang::Expr const*)
> clang/lib/CodeGen/CGExpr.cpp:196:1
> #26 0x0000000002c593a5 llvm::IRBuilderBase::GetInsertBlock() const
> llvm/include/llvm/IR/IRBuilder.h:178:47
> #27 0x0000000002c593a5 clang::CodeGen::CodeGenFunction::EmitStmt(clang::Stmt
> const*, llvm::ArrayRef<clang::Attr const*>)
> clang/lib/CodeGen/CGStmt.cpp:123:42
> #28 0x0000000002c6511c
> clang::CodeGen::CodeGenFunction::EmitCompoundStmtWithoutScope(clang::CompoundStmt
> const&, bool, clang::CodeGen::AggValueSlot)
> clang/lib/CodeGen/CGStmt.cpp:468:22
> #29 0x0000000002cbebae
> clang::CodeGen::CodeGenFunction::EmitFunctionBody(clang::Stmt const*)
> clang/lib/CodeGen/CodeGenFunction.cpp:0:5
[...]
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