[all-commits] [llvm/llvm-project] 9596e8: [mlir][AMDGPU] Enable emulating vector buffer_atom...

[Krzysztof Drewniak via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9596e83b2aa9017f4ebec3c150ca3aadd047762b
      https://github.com/llvm/llvm-project/commit/9596e83b2aa9017f4ebec3c150ca3aadd047762b
  Author: Krzysztof Drewniak <Krzysztof.Drewniak at amd.com>
  Date:   2024-09-12 (Thu, 12 Sep 2024)

  Changed paths:
    M mlir/include/mlir/Dialect/AMDGPU/IR/AMDGPU.td
    M mlir/include/mlir/Dialect/AMDGPU/Transforms/Passes.td
    M mlir/lib/Conversion/AMDGPUToROCDL/AMDGPUToROCDL.cpp
    M mlir/lib/Dialect/AMDGPU/Transforms/CMakeLists.txt
    M mlir/lib/Dialect/AMDGPU/Transforms/EmulateAtomics.cpp
    M mlir/test/Conversion/AMDGPUToROCDL/amdgpu-to-rocdl.mlir
    M mlir/test/Dialect/AMDGPU/amdgpu-emulate-atomics.mlir

  Log Message:
  -----------
  [mlir][AMDGPU] Enable emulating vector buffer_atomic_fadd on gfx11 (#108312)

* Fix a bug introduced by the Chipset refactoring in #107720 where
atomics emulation for adds was mistakenly applied to gfx11+
* Add the case needed for gfx11+ atomic emulation, namely that gfx11
doesn't support atomically adding a v2f16 or v2bf16, thus requiring
MLIR-level legalization for buffer intrinsics that attempt to do such an
addition
* Add tests, including tests for gfx11 atomic emulation

Co-authored-by: Manupa Karunaratne <manupa.karunaratne at amd.com>



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