[PATCH] D17737: [PGO] change profile use cc1 option

[Rong Xu via cfe-commits]

xur created this revision.
xur added reviewers: davidxl, silvas, bogner.
xur added subscribers: davidxl, xur, cfe-commits.

This patch takes the suggestion by Sean Silva in https://reviews.llvm.org/D17622 to decouple cc1 option from driver level option.

-fprofile-instr-use={} is now a driver only option. The cc1 part is replaced by -fprofile-instrument-use={llvm,clang}.
It sets a CodeGenOpt `ProfileUse` which is either {None, Clang, LLVM}, a common enum for -fprofile-instrument={} (for the profile instrument).

The profile path cc1 option now becomes -fprofile-instrument-usepath={}.

http://reviews.llvm.org/D17737

Files:
  include/clang/Driver/CC1Options.td
  include/clang/Driver/Options.td
  include/clang/Frontend/CodeGenOptions.def
  include/clang/Frontend/CodeGenOptions.h
  lib/CodeGen/BackendUtil.cpp
  lib/CodeGen/CodeGenModule.cpp
  lib/Driver/Tools.cpp
  lib/Frontend/CompilerInvocation.cpp
  test/CodeGen/Inputs/pgotestclang.profraw
  test/CodeGen/Inputs/pgotestir.profraw
  test/CodeGen/pgo-instrumentation.c
  test/Driver/clang_f_opts.c
  test/Profile/c-captured.c
  test/Profile/c-counter-overflows.c
  test/Profile/c-general.c
  test/Profile/c-outdated-data.c
  test/Profile/c-unprofiled-blocks.c
  test/Profile/c-unprofiled.c
  test/Profile/cxx-lambda.cpp
  test/Profile/cxx-rangefor.cpp
  test/Profile/cxx-templates.cpp
  test/Profile/objc-general.m
  test/Profile/profile-does-not-exist.c

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