[all-commits] [llvm/llvm-project] 665d20: [mlir][xegpu] Handle size-1 broadcast dim in inser...

[Jianhui Li via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 665d200b160d15ef7e8ddeb21c7028d774c7e1b1
      https://github.com/llvm/llvm-project/commit/665d200b160d15ef7e8ddeb21c7028d774c7e1b1
  Author: Jianhui Li <jian.hui.li at intel.com>
  Date:   2026-07-30 (Thu, 30 Jul 2026)

  Changed paths:
    M mlir/lib/Dialect/XeGPU/Transforms/XeGPULayoutImpl.cpp
    M mlir/test/Dialect/XeGPU/propagate-layout.mlir
    M mlir/test/Dialect/XeGPU/sg-to-lane-distribute-unit.mlir

  Log Message:
  -----------
  [mlir][xegpu] Handle size-1 broadcast dim in insert_strided_slice layout setup (#211725)

This PR enhance `setupInsertStridedSliceResultLayout` to treat a size-1
source dim as a broadcast dim: keep its lane_data at 1 instead of
requiring divisibility.

Add regression tests for both the layout propagation setup and the
subgroup-to-lane distribution of such an op.

Assisted-by-claude

Co-authored-by: Claude Opus 4.8 <noreply at anthropic.com>



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