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Use LLVMDIBuilderCreateGlobalVariableExpression

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Note that the code in `LLVMRustDIBuilderCreateStaticVariable` that tried to
downcast `InitVal` appears to have been dead, because `llvm::ConstantInt` and
`llvm::ConstantFP` are not subclasses of `llvm::GlobalVariable`.
This commit is contained in:
Zalathar 2025-10-04 22:54:37 +10:00
parent 1db7d41665
commit 1081d98551
3 changed files with 37 additions and 60 deletions
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31
compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
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@ -1044,37 +1044,6 @@ extern "C" LLVMMetadataRef LLVMRustDIBuilderCreateVariantMemberType(
fromRust(Flags), unwrapDI<DIType>(Ty)));
}
extern "C" LLVMMetadataRef LLVMRustDIBuilderCreateStaticVariable(
LLVMDIBuilderRef Builder, LLVMMetadataRef Context, const char *Name,
size_t NameLen, const char *LinkageName, size_t LinkageNameLen,
LLVMMetadataRef File, unsigned LineNo, LLVMMetadataRef Ty,
bool IsLocalToUnit, LLVMValueRef V, LLVMMetadataRef Decl = nullptr,
uint32_t AlignInBits = 0) {
llvm::GlobalVariable *InitVal = cast<llvm::GlobalVariable>(unwrap(V));
llvm::DIExpression *InitExpr = nullptr;
if (llvm::ConstantInt *IntVal = llvm::dyn_cast<llvm::ConstantInt>(InitVal)) {
InitExpr = unwrap(Builder)->createConstantValueExpression(
IntVal->getValue().getSExtValue());
} else if (llvm::ConstantFP *FPVal =
llvm::dyn_cast<llvm::ConstantFP>(InitVal)) {
InitExpr = unwrap(Builder)->createConstantValueExpression(
FPVal->getValueAPF().bitcastToAPInt().getZExtValue());
}
llvm::DIGlobalVariableExpression *VarExpr =
unwrap(Builder)->createGlobalVariableExpression(
unwrapDI<DIDescriptor>(Context), StringRef(Name, NameLen),
StringRef(LinkageName, LinkageNameLen), unwrapDI<DIFile>(File),
LineNo, unwrapDI<DIType>(Ty), IsLocalToUnit,
/* isDefined */ true, InitExpr, unwrapDIPtr<MDNode>(Decl),
/* templateParams */ nullptr, AlignInBits);
InitVal->setMetadata("dbg", VarExpr);
return wrap(VarExpr);
}
extern "C" LLVMMetadataRef
LLVMRustDIBuilderCreateEnumerator(LLVMDIBuilderRef Builder, const char *Name,
size_t NameLen, const uint64_t Value[2],