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[Driver][docs] Document option -mtune as a no-op.
authorSjoerd Meijer <sjoerd.meijer@arm.com>
Wed, 22 Apr 2020 07:49:02 +0000 (08:49 +0100)
committerSjoerd Meijer <sjoerd.meijer@arm.com>
Wed, 22 Apr 2020 08:15:48 +0000 (09:15 +0100)
commit35cf2f42dda4d708741e06570b2dbe91cec4dc41
tree4f06a71e3eda9b48e9207aeade4d835f543c1d2d
parent7318625674b7a293fd5645e463e3a4abe81150c0
[Driver][docs] Document option -mtune as a no-op.

This documents that option -mtune is accepted for compatibility with GCC,
currently it has no effect, and thus does not currently perform any CPU type
specific tuning.

Corresponding discussion on the cfe dev list:
http://lists.llvm.org/pipermail/cfe-dev/2020-April/065169.html

Differential Revision: https://reviews.llvm.org/D78511
clang/docs/ClangCommandLineReference.rst
clang/include/clang/Driver/Options.td