[all-commits] [llvm/llvm-project] c2edde: [AMDGPU] System scope atomics are emulated over PC...

[Stanislav Mekhanoshin via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c2eddec4ff42eca8a93e3f8a0531dfb6e60a61ca
      https://github.com/llvm/llvm-project/commit/c2eddec4ff42eca8a93e3f8a0531dfb6e60a61ca
  Author: Stanislav Mekhanoshin <Stanislav.Mekhanoshin at amd.com>
  Date:   2025-08-06 (Wed, 06 Aug 2025)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPU.td
    M llvm/lib/Target/AMDGPU/GCNSubtarget.h
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    A llvm/test/CodeGen/AMDGPU/atomics-system-scope.ll
    M llvm/test/CodeGen/AMDGPU/literal64.ll

  Log Message:
  -----------
  [AMDGPU] System scope atomics are emulated over PCIe in gfx1250 (#152369)

HW will emulate unsupported PCIe atomics via CAS loop, we do not need to
expand these anymore.



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