[all-commits] [llvm/llvm-project] 401ba6: [MLIR][XeGPU] Add Layout Propagation support for m...

[Jianhui Li via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 401ba6df84f66885fdf68d4d1fb52b422c338b89
      https://github.com/llvm/llvm-project/commit/401ba6df84f66885fdf68d4d1fb52b422c338b89
  Author: Jianhui Li <jian.hui.li at intel.com>
  Date:   2026-04-01 (Wed, 01 Apr 2026)

  Changed paths:
    M mlir/include/mlir/Dialect/XeGPU/IR/XeGPUOps.td
    M mlir/include/mlir/Dialect/XeGPU/IR/XeGPUTypes.td
    M mlir/include/mlir/Dialect/XeGPU/Transforms/XeGPULayoutImpl.h
    M mlir/lib/Dialect/XeGPU/Transforms/XeGPULayoutImpl.cpp
    M mlir/lib/Dialect/XeGPU/Transforms/XeGPUPropagateLayout.cpp
    M mlir/test/Dialect/XeGPU/propagate-layout-subgroup.mlir
    M mlir/test/Dialect/XeGPU/propagate-layout.mlir

  Log Message:
  -----------
  [MLIR][XeGPU] Add Layout Propagation support for multi-reduction/reduction op with scalar result (#189133)

This PR add Layout Propagation support for multi-reduction/reduction op
with scalar result:
1) Enhance setupMultiReductionResultLayout() and
LayoutInfoPropagation::visitVectorMultiReductionOp() to support scalar
result
2) Add propagation support for vector.reduction op at the lane level,
since the op is only introduced at the lane level.



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