[Analysis] Use std::optional in BlockFrequencyInfoImpl.h (NFC)
authorKazu Hirata <kazu@google.com>
Sun, 27 Nov 2022 19:49:00 +0000 (11:49 -0800)
committerKazu Hirata <kazu@google.com>
Sun, 27 Nov 2022 19:49:00 +0000 (11:49 -0800)
commit561a470da92098038ebf8842160aafa842cf790a
tree07e9c52321acc22c1bc792668905741c21defdd3
parentd1925fa27a379ea7cf9625e62f98af967c7bae3c
[Analysis] Use std::optional in BlockFrequencyInfoImpl.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/Analysis/BlockFrequencyInfoImpl.h