[PATCH] D55150: Emit warnings from the driver for use of -mllvm or -Xclang options.

[James Y Knight via Phabricator via cfe-commits]

jyknight created this revision.
jyknight added reviewers: rsmith, chandlerc.
Herald added a subscriber: arphaman.

This warning, Wexperimental-driver-option, is on by default, exempt
from -Werror, and may be disabled.

Additionally, change the documentation to note that these options are
not intended for common usage.


https://reviews.llvm.org/D55150

Files:
  clang/docs/UsersManual.rst
  clang/include/clang/Basic/DiagnosticDriverKinds.td
  clang/include/clang/Basic/DiagnosticGroups.td
  clang/include/clang/Driver/Options.td
  clang/lib/Driver/ToolChains/Clang.cpp
  clang/tools/libclang/CIndex.cpp

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