[all-commits] [llvm/llvm-project] 6d68ef: [mlir][Vector] Canonicalize create_mask(transpose)

[Diego Caballero via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6d68ef4e38fb3e701a8aacede568f57b73ebcfbf
      https://github.com/llvm/llvm-project/commit/6d68ef4e38fb3e701a8aacede568f57b73ebcfbf
  Author: Diego Caballero <diegocaballero at google.com>
  Date:   2023-03-16 (Thu, 16 Mar 2023)

  Changed paths:
    M mlir/lib/Dialect/Vector/IR/VectorOps.cpp
    M mlir/test/Dialect/Vector/canonicalize.mlir

  Log Message:
  -----------
  [mlir][Vector] Canonicalize create_mask(transpose)

When applying vector masking we may create a mask and then transpose it.
Transpositions are extremely expensive so this patch introduces a new
canonicalization pattern that remove the tranpose operation and create a
new transposed mask.

Differential Revision: https://reviews.llvm.org/D146193