[all-commits] [llvm/llvm-project] 574a9d: [AMDGPU] Always expand system scope fp atomics on ...

[Stanislav Mekhanoshin via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 574a9dabc63ba1e7a04c08d4bde2eacd61b44ce1
      https://github.com/llvm/llvm-project/commit/574a9dabc63ba1e7a04c08d4bde2eacd61b44ce1
  Author: Stanislav Mekhanoshin <Stanislav.Mekhanoshin at amd.com>
  Date:   2021-03-10 (Wed, 10 Mar 2021)

  Changed paths:
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    M llvm/test/CodeGen/AMDGPU/fp64-atomics-gfx90a.ll
    M llvm/test/CodeGen/AMDGPU/global-atomics-fp.ll

  Log Message:
  -----------
  [AMDGPU] Always expand system scope fp atomics on gfx90a

FP atomics in system scope cannot be used and shall always
be expanded in a CAS loop.

Differential Revision: https://reviews.llvm.org/D98085