[all-commits] [llvm/llvm-project] dbc63f: [AMDGPU] fold `memref.subview/expand_shape/collaps...

[Alan Li via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: dbc63f1e3724b6f2348c431dc1216537d9c042e8
      https://github.com/llvm/llvm-project/commit/dbc63f1e3724b6f2348c431dc1216537d9c042e8
  Author: Alan Li <me at alanli.org>
  Date:   2025-07-23 (Wed, 23 Jul 2025)

  Changed paths:
    M mlir/include/mlir/Dialect/AMDGPU/Transforms/Passes.h
    M mlir/include/mlir/Dialect/AMDGPU/Transforms/Passes.td
    M mlir/include/mlir/Dialect/MemRef/Utils/MemRefUtils.h
    M mlir/lib/Dialect/AMDGPU/Transforms/CMakeLists.txt
    A mlir/lib/Dialect/AMDGPU/Transforms/FoldMemRefsOps.cpp
    M mlir/lib/Dialect/MemRef/Transforms/FoldMemRefAliasOps.cpp
    M mlir/lib/Dialect/MemRef/Utils/MemRefUtils.cpp
    A mlir/test/Dialect/AMDGPU/amdgpu-fold-memrefs.mlir

  Log Message:
  -----------
  [AMDGPU] fold `memref.subview/expand_shape/collapse_shape` into `amdgpu.gather_to_lds` (#149851)

This PR adds a new optimization pass to fold
`memref.subview/expand_shape/collapse_shape` ops into consumer
`amdgpu.gather_to_lds` operations.

* Implements a new pass `AmdgpuFoldMemRefOpsPass` with pattern
`FoldMemRefOpsIntoGatherToLDSOp`
* Adds corresponding folding tests

---------

Co-authored-by: Copilot <175728472+Copilot at users.noreply.github.com>



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