[Scalar] Use std::optional in GVN.h (NFC)
authorKazu Hirata <kazu@google.com>
Mon, 28 Nov 2022 02:24:43 +0000 (18:24 -0800)
committerKazu Hirata <kazu@google.com>
Mon, 28 Nov 2022 02:24:43 +0000 (18:24 -0800)
commit38a29686d4e6609489aeea2132afd64b4251a224
tree2570e7f72fb65bd3b6beeae9db9e4102805723d6
parent6d5669c723f48a31f7063b14651edfe9c28c24bb
[Scalar] Use std::optional in GVN.h (NFC)

This is part of an effort to migrate from llvm::Optional to
std::optional:

https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716
llvm/include/llvm/Transforms/Scalar/GVN.h