================
@@ -2067,6 +2067,10 @@ Constant *ConstantExpr::getBitCast(Constant *C, Type
*DstTy,
Constant *ConstantExpr::getAddrSpaceCast(Constant *C, Type *DstTy,
bool OnlyIfReduced) {
+ // Skip cast if types are identical
----------------
EthanLuisMcDonough wrote:
`CastInst::castIsValid` returns false for addrspace casts if two pointers share
the same addrspace.
https://github.com/llvm/llvm-project/blob/2de269a641e4ffbb7a44e559c4c0a91bb66df823/llvm/lib/IR/Instructions.cpp#L3802-L3805
https://github.com/llvm/llvm-project/pull/76587
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