[libc] Use std::optional instead of llvm::Optional (NFC)
authorKazu Hirata <kazu@google.com>
Sun, 15 Jan 2023 04:22:48 +0000 (20:22 -0800)
committerKazu Hirata <kazu@google.com>
Sun, 15 Jan 2023 04:22:48 +0000 (20:22 -0800)
commite1cdda57fabddb809b17f30f5dcd3e59518cafa7
tree45185a7228c78c987b2afc04102fe083065cf3eb
parenta64846bee0bb4b4912c8cf6bf018ba5d892065d1
[libc] Use std::optional instead of llvm::Optional (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
libc/benchmarks/LibcBenchmark.h
libc/benchmarks/LibcBenchmarkTest.cpp
libc/benchmarks/automemcpy/lib/CodeGen.cpp
libc/utils/LibcTableGenUtil/APIIndexer.h