[AsmParser] Use std::optional in AArch64AsmParser.cpp (NFC)
authorKazu Hirata <kazu@google.com>
Sat, 26 Nov 2022 06:14:44 +0000 (22:14 -0800)
committerKazu Hirata <kazu@google.com>
Sat, 26 Nov 2022 06:14:44 +0000 (22:14 -0800)
commitfc07a54ef674365a934a1c880f24c2e5145b25cb
tree1ddfffb6958c8ca1af85c16934db18279cb001d5
parent185f647bb6289c6d93a19aeb5c7e00753497622b
[AsmParser] Use std::optional in AArch64AsmParser.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/Target/AArch64/AsmParser/AArch64AsmParser.cpp