[all-commits] [llvm/llvm-project] 0f6999: [MLIR] Update linalg.conv lowering to use affine l...

[Uday Bondhugula via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 0f6999af88a08bd430699e72982caa9daf6fa604
      https://github.com/llvm/llvm-project/commit/0f6999af88a08bd430699e72982caa9daf6fa604
  Author: Uday Bondhugula <uday at polymagelabs.com>
  Date:   2020-06-05 (Fri, 05 Jun 2020)

  Changed paths:
    M mlir/include/mlir/Dialect/Linalg/IR/LinalgStructuredOps.td
    M mlir/lib/Dialect/Linalg/Transforms/Loops.cpp
    M mlir/test/Dialect/Linalg/affine.mlir

  Log Message:
  -----------
  [MLIR] Update linalg.conv lowering to use affine load in the absence of padding

Update linalg to affine lowering for convop to use affine load for input
whenever there is no padding. It had always been using std.loads because
max in index functions (needed for non-zero padding if not materializing
zeros) couldn't be represented in the non-zero padding cases.

In the future, the non-zero padding case could also be made to use
affine - either by materializing or using affine.execute_region. The
latter approach will not impact the scf/std output obtained after
lowering out affine.

Differential Revision: https://reviews.llvm.org/D81191