[PATCH] D61574: [CommandLine] Allow Options to specify multiple OptionCategory's.

[Don Hinton via Phabricator via llvm-commits]

hintonda created this revision.
hintonda added reviewers: MaskRay, thopre, dblaikie, rnk.
Herald added a subscriber: hiraditya.
Herald added a project: LLVM.

It's not uncommon for separate components to share common
Options, e.g., it's common for related Passes to share Options in
addition to the Pass specific ones.

With this change, components can use OptionCategory's to simply help
output even if some of the options are shared.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D61574

Files:
  llvm/include/llvm/Support/CommandLine.h
  llvm/lib/Support/CommandLine.cpp
  llvm/unittests/Support/CommandLineTest.cpp

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