[PATCH] D91546: [AMDGPU] Add option -munsafe-fp-atomics

[Yaxun Liu via Phabricator via cfe-commits]

yaxunl created this revision.
yaxunl added reviewers: tra, rjmccall, arsenm.
Herald added subscribers: dang, kerbowa, jfb, t-tye, tpr, dstuttard, nhaehnle, jvesely, kzhuravl.
yaxunl requested review of this revision.
Herald added a subscriber: wdng.

Add an option -munsafe-fp-atomics for AMDGPU target.

When enabled, clang adds function attribute "amdgpu-unsafe-fp-atomics"
to any functions for amdgpu target. This allows amdgpu backend to use
unsafe fp atomic instructions in these functions.


https://reviews.llvm.org/D91546

Files:
  clang/include/clang/Basic/TargetInfo.h
  clang/include/clang/Basic/TargetOptions.h
  clang/include/clang/Driver/Options.td
  clang/lib/Basic/TargetInfo.cpp
  clang/lib/Basic/Targets/AMDGPU.cpp
  clang/lib/CodeGen/TargetInfo.cpp
  clang/lib/Driver/ToolChains/Clang.cpp
  clang/lib/Frontend/CompilerInvocation.cpp
  clang/test/CodeGenCUDA/amdgpu-func-attrs.cu
  clang/test/Driver/hip-options.hip

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