[PATCH] D151438: [NFC][Driver] Change Multilib flag representation

[Michael Platings via Phabricator via cfe-commits]

michaelplatings created this revision.
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This new representation means that if a string is a valid command line
option then it can also be used to indicate that the option is required
by a multilib.

To indicate that a flag is required not to be present, its first
character is replaced with '!', which is intended for consistency with
the logical not operator in many programming languages.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D151438

Files:
  clang/include/clang/Driver/Multilib.h
  clang/include/clang/Driver/MultilibBuilder.h
  clang/lib/Driver/Multilib.cpp
  clang/lib/Driver/MultilibBuilder.cpp
  clang/lib/Driver/ToolChains/CommonArgs.cpp
  clang/lib/Driver/ToolChains/OHOS.cpp

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