[all-commits] [llvm/llvm-project] 060c9d: [mlir] [VectorOps] Improve SIMD compares with narr...

[Aart Bik via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 060c9dd1cc467cbeb6cf1c29dd44d07f562606b4
      https://github.com/llvm/llvm-project/commit/060c9dd1cc467cbeb6cf1c29dd44d07f562606b4
  Author: aartbik <ajcbik at google.com>
  Date:   2020-09-03 (Thu, 03 Sep 2020)

  Changed paths:
    M mlir/include/mlir/Conversion/Passes.td
    M mlir/include/mlir/Conversion/VectorToLLVM/ConvertVectorToLLVM.h
    M mlir/lib/Conversion/VectorToLLVM/ConvertVectorToLLVM.cpp
    M mlir/lib/Dialect/Vector/VectorTransforms.cpp
    A mlir/test/Conversion/VectorToLLVM/vector-mask-to-llvm.mlir
    M mlir/test/Conversion/VectorToLLVM/vector-to-llvm.mlir
    M mlir/test/Dialect/Vector/vector-contract-transforms.mlir

  Log Message:
  -----------
  [mlir] [VectorOps] Improve SIMD compares with narrower indices

When allowed, use 32-bit indices rather than 64-bit indices in the
SIMD computation of masks. This runs up to 2x and 4x faster on
a number of AVX2 and AVX512 microbenchmarks.

Reviewed By: bkramer

Differential Revision: https://reviews.llvm.org/D87116