================
@@ -2873,14 +2890,33 @@ void
CodeGenModule::CreateFunctionTypeMetadataForIcall(const FunctionDecl *FD,
llvm::Metadata *MD = CreateMetadataIdentifierForType(FD->getType());
F->addTypeMetadata(0, MD);
- F->addTypeMetadata(0, CreateMetadataIdentifierGeneralized(FD->getType()));
+ // Add the generalized identifier if not added already.
+ if (!HasExistingGeneralizedTypeMD(F))
+ F->addTypeMetadata(0, CreateMetadataIdentifierGeneralized(FD->getType()));
// Emit a hash-based bit set entry for cross-DSO calls.
if (CodeGenOpts.SanitizeCfiCrossDso)
if (auto CrossDsoTypeId = CreateCrossDsoCfiTypeId(MD))
F->addTypeMetadata(0, llvm::ConstantAsMetadata::get(CrossDsoTypeId));
}
+void CodeGenModule::CreateCalleeTypeMetadataForIcall(const QualType &QT,
+ llvm::CallBase *CB) {
+ // Only if needed for call graph section and only for indirect calls.
+ if (!CodeGenOpts.CallGraphSection || !CB->isIndirectCall())
+ return;
+
+ llvm::Metadata *TypeIdMD = CreateMetadataIdentifierGeneralized(QT);
+ llvm::MDTuple *TypeTuple = llvm::MDTuple::get(
+ getLLVMContext(), {llvm::ConstantAsMetadata::get(llvm::ConstantInt::get(
+ llvm::Type::getInt64Ty(getLLVMContext()), 0)),
+ TypeIdMD});
+ SmallVector<llvm::Metadata *, 1> TypeIdMDList;
+ TypeIdMDList.push_back(TypeTuple);
+ llvm::MDTuple *MDN = llvm::MDNode::get(getLLVMContext(), TypeIdMDList);
----------------
ilovepi wrote:
```suggestion
llvm::MDTuple *MDN = llvm::MDNode::get(getLLVMContext(), { TypeTuple });
```
I think you can get away w/o the SmallVec, right?
https://github.com/llvm/llvm-project/pull/117036
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