[PATCH] D71726: Let clang atomic builtins fetch add/sub support floating point types

[Yaxun Liu via Phabricator via cfe-commits]

yaxunl updated this revision to Diff 281296.
yaxunl added a comment.

Make IEEE single and double type as supported for fp atomics in all targets by default. This is based on the assumption that AtomicExpandPass or its ongoing work is sufficient to support fp atomics for all targets. This is to facilitate middle end and backend end development to support fp atomics.

If a target would like to treat single and double fp atomics as unsupported, it can override the default behavior in its own TargetInfo.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D71726/new/

https://reviews.llvm.org/D71726

Files:
  clang/include/clang/Basic/DiagnosticSemaKinds.td
  clang/include/clang/Basic/TargetInfo.h
  clang/lib/CodeGen/CGAtomic.cpp
  clang/lib/Sema/SemaChecking.cpp
  clang/test/CodeGenCUDA/amdgpu-atomic-ops.cu
  clang/test/CodeGenOpenCL/atomic-ops.cl
  clang/test/Sema/atomic-ops.c
  clang/test/SemaCUDA/amdgpu-atomic-ops.cu
  clang/test/SemaOpenCL/atomic-ops.cl

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