[PATCH] D127163: [clang] Add -fsanitize=memtag-globals (no-op).

[Mitch Phillips via Phabricator via cfe-commits]

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Adds the -fsanitize plumbing for memtag-globals. Makes -fsanitize=memtag
imply -fsanitize=memtag-globals.

This has no effect on codegen for now.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D127163

Files:
  clang/include/clang/Basic/Features.def
  clang/include/clang/Basic/Sanitizers.def
  clang/include/clang/Driver/SanitizerArgs.h
  clang/lib/Driver/SanitizerArgs.cpp
  clang/lib/Driver/ToolChains/Linux.cpp
  clang/lib/Sema/SemaDeclAttr.cpp
  clang/test/Driver/fsanitize.c

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