[AArch64] Use std::optional in AArch64FrameLowering.cpp (NFC)
authorKazu Hirata <kazu@google.com>
Sat, 26 Nov 2022 05:57:21 +0000 (21:57 -0800)
committerKazu Hirata <kazu@google.com>
Sat, 26 Nov 2022 05:57:21 +0000 (21:57 -0800)
commit4f7e5930abf3ff283283b20dab8d5d651a490900
tree554ea2489e9d86ea8b0e684474211970461ac361
parent0af53df8838fd0a48d8649522ac3fddef065358d
[AArch64] Use std::optional in AArch64FrameLowering.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/AArch64FrameLowering.cpp