[all-commits] [llvm/llvm-project] 94def1: [AMDGPU] Do not exapnd fp atomics on gfx940

[Stanislav Mekhanoshin via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 94def1b44eef56c8593599818ead34883cddd8d4
      https://github.com/llvm/llvm-project/commit/94def1b44eef56c8593599818ead34883cddd8d4
  Author: Stanislav Mekhanoshin <Stanislav.Mekhanoshin at amd.com>
  Date:   2023-02-08 (Wed, 08 Feb 2023)

  Changed paths:
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    M llvm/test/CodeGen/AMDGPU/GlobalISel/fp-atomics-gfx940.ll
    M llvm/test/CodeGen/AMDGPU/atomicrmw-expand.ll
    M llvm/test/CodeGen/AMDGPU/fp-atomics-gfx940.ll
    M llvm/test/CodeGen/AMDGPU/fp64-atomics-gfx90a.ll
    M llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-rmw-fadd-flat-specialization.ll
    M llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-rmw-fadd.ll

  Log Message:
  -----------
  [AMDGPU] Do not exapnd fp atomics on gfx940

FP atomics are safe on gfx940. This fixes regression after D131560.

Fixes: SWDEV-380468

Differential Revision: https://reviews.llvm.org/D143603