[SelectionDAG] Use std::optional in SelectionDAGISel.cpp (NFC)
authorKazu Hirata <kazu@google.com>
Sat, 26 Nov 2022 23:07:23 +0000 (15:07 -0800)
committerKazu Hirata <kazu@google.com>
Sat, 26 Nov 2022 23:07:23 +0000 (15:07 -0800)
commita5ef7bb5c137529573f626cfe80764db90c1ed98
tree548bdbd8734d7318908db3ff72ab9b80fdf068e0
parent01e998e7522c0bedf9270f19fe97ad4071744166
[SelectionDAG] Use std::optional in SelectionDAGISel.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/SelectionDAG/SelectionDAGISel.cpp