[all-commits] [llvm/llvm-project] 186709: [mlir] [VectorOps] Progressive lowering of vector....

[Aart Bik via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 186709c6e0bd1025fb578e43911325530cb97f09
      https://github.com/llvm/llvm-project/commit/186709c6e0bd1025fb578e43911325530cb97f09
  Author: aartbik <ajcbik at google.com>
  Date:   2020-04-16 (Thu, 16 Apr 2020)

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

  Log Message:
  -----------
  [mlir] [VectorOps] Progressive lowering of vector.broadcast

Summary:
Rather than having a full, recursive, lowering of vector.broadcast
to LLVM IR, it is much more elegant to have a progressive lowering
of each vector.broadcast into a lower dimensional vector.broadcast,
until only elementary vector operations remain. This results
in more elegant, step-wise code, that is easier to understand.
Also makes some optimizations in the generated code.

Reviewers: nicolasvasilache, mehdi_amini, andydavis1, grosul1

Reviewed By: nicolasvasilache

Subscribers: mehdi_amini, rriddle, jpienaar, burmako, shauheen, antiagainst, nicolasvasilache, arpith-jacob, mgester, lucyrfox, liufengdb, Joonsoo, grosul1, frgossen, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D78071