[all-commits] [llvm/llvm-project] f2d91a: [mlir][utils] Fix invalid reshapes in ComposeColla...

[Matthias Springer via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f2d91a7ae1172d4cf8f06a0204a2dc64a0d68ea4
      https://github.com/llvm/llvm-project/commit/f2d91a7ae1172d4cf8f06a0204a2dc64a0d68ea4
  Author: Matthias Springer <springerm at google.com>
  Date:   2022-11-23 (Wed, 23 Nov 2022)

  Changed paths:
    M mlir/include/mlir/Dialect/Utils/ReshapeOpsUtils.h
    M mlir/lib/Dialect/MemRef/IR/MemRefOps.cpp
    M mlir/lib/Dialect/Tensor/IR/TensorOps.cpp
    M mlir/test/Dialect/MemRef/canonicalize.mlir
    M mlir/test/Dialect/Tensor/canonicalize.mlir

  Log Message:
  -----------
  [mlir][utils] Fix invalid reshapes in ComposeCollapseOfExpandOp

Do not generate CollapseShapeOps/ExpandShapeOps that have the same source and result shape. Generate casts instead. Such reshapes became invalid with D138498.

Differential Revision: https://reviews.llvm.org/D138557