[Scalar] Use std::optional in LoopRotation.cpp (NFC)
authorKazu Hirata <kazu@google.com>
Sun, 27 Nov 2022 01:21:19 +0000 (17:21 -0800)
committerKazu Hirata <kazu@google.com>
Sun, 27 Nov 2022 01:21:19 +0000 (17:21 -0800)
commit27ae2354a055a84bf95e958a66b1cbbbb1ff1280
treee704ef0b9d41a5d434f73b0e1c26c4104a03008b
parent3e3be2955bcb95129cffd318e5948be9aefe921a
[Scalar] Use std::optional in LoopRotation.cpp (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/lib/Transforms/Scalar/LoopRotation.cpp