llvm/mlir/lib/Dialect/MemRef/Transforms/ComposeSubView.cpp

//===- ComposeSubView.cpp - Combining composed subview ops ----------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file contains patterns for combining composed subview ops (i.e. subview
// of a subview becomes a single subview).
//
//===----------------------------------------------------------------------===//

#include "mlir/Dialect/MemRef/Transforms/ComposeSubView.h"
#include "mlir/Dialect/Affine/IR/AffineOps.h"
#include "mlir/Dialect/MemRef/IR/MemRef.h"
#include "mlir/IR/BuiltinAttributes.h"
#include "mlir/IR/OpDefinition.h"
#include "mlir/IR/PatternMatch.h"
#include "mlir/Transforms/DialectConversion.h"
#include "mlir/Transforms/GreedyPatternRewriteDriver.h"

usingnamespacemlir;

namespace {

// Replaces a subview of a subview with a single subview(both static and dynamic
// offsets are supported).
struct ComposeSubViewOpPattern : public OpRewritePattern<memref::SubViewOp> { … };

} // namespace

void mlir::memref::populateComposeSubViewPatterns(RewritePatternSet &patterns,
                                                  MLIRContext *context) { … }