================
@@ -185,10 +185,56 @@ llvm::MDNode *CodeGenTBAA::getTypeInfoHelper(const Type
*Ty) {
return getChar();
// Handle pointers and references.
- // TODO: Implement C++'s type "similarity" and consider dis-"similar"
- // pointers distinct.
- if (Ty->isPointerType() || Ty->isReferenceType())
- return createScalarTypeNode("any pointer", getChar(), Size);
+ //
+ // C has a very strict rule for pointer aliasing. C23 6.7.6.1p2:
+ // For two pointer types to be compatible, both shall be identically
+ // qualified and both shall be pointers to compatible types.
+ //
+ // This rule is impractically strict; we want to at least ignore CVR
----------------
fhahn wrote:
Sounds good!
https://github.com/llvm/llvm-project/pull/76612
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