[RISCV] Use std::optional in RISCVGatherScatterLowering.cpp (NFC)
authorKazu Hirata <kazu@google.com>
Sat, 26 Nov 2022 06:59:57 +0000 (22:59 -0800)
committerKazu Hirata <kazu@google.com>
Sat, 26 Nov 2022 06:59:57 +0000 (22:59 -0800)
commit7e008206863f3e274966c1dba1edfc0db1ed0cb3
treec30a3637956564c94bba496eab22b9db9cda0f4b
parentc672bb674c663c693b3bcbe92da6c2ac020dacbc
[RISCV] Use std::optional in RISCVGatherScatterLowering.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/RISCV/RISCVGatherScatterLowering.cpp