[GlobalISel] Use std::optional in LegalizerHelper.cpp (NFC)
authorKazu Hirata <kazu@google.com>
Sat, 26 Nov 2022 22:44:54 +0000 (14:44 -0800)
committerKazu Hirata <kazu@google.com>
Sat, 26 Nov 2022 22:44:54 +0000 (14:44 -0800)
commit3ccbfc34c0bdc18d259f4d4067616fe61e0876d8
tree6b4ed2d173499fa9579eb8851dddf8b7839b5a0c
parent4531b61208eb723bdd9533236e14b349ee0ca22d
[GlobalISel] Use std::optional in LegalizerHelper.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/CodeGen/GlobalISel/LegalizerHelper.cpp