[all-commits] [llvm/llvm-project] 9ea00f: [NFC][AArch64] Use optional returns in target pars...

[Lucas Duarte Prates via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9ea00fc74c3c0032ff2d9a6774e13449a30e4549
      https://github.com/llvm/llvm-project/commit/9ea00fc74c3c0032ff2d9a6774e13449a30e4549
  Author: Lucas Prates <lucas.prates at arm.com>
  Date:   2023-01-27 (Fri, 27 Jan 2023)

  Changed paths:
    M clang/lib/Basic/Targets/AArch64.cpp
    M clang/lib/Driver/ToolChains/Arch/AArch64.cpp
    M llvm/include/llvm/TargetParser/AArch64TargetParser.h
    M llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
    M llvm/lib/TargetParser/AArch64TargetParser.cpp
    M llvm/unittests/TargetParser/TargetParserTest.cpp

  Log Message:
  -----------
  [NFC][AArch64] Use optional returns in target parser instead of 'invalid' objects

This updates the parsing methods in AArch64's Target Parser to make use
of optional returns instead of "invalid" enum values, making the API's
behaviour clearer.

Reviewed By: lenary, tmatheson

Differential Revision: https://reviews.llvm.org/D142539