llvm/mlir/lib/Dialect/Affine/Transforms/AffineExpandIndexOps.cpp

//===- AffineExpandIndexOps.cpp - Affine expand index ops pass ------------===//
//
// 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 implements a pass to expand affine index ops into one or more more
// fundamental operations.
//===----------------------------------------------------------------------===//

#include "mlir/Dialect/Affine/Passes.h"

#include "mlir/Dialect/Affine/IR/AffineOps.h"
#include "mlir/Dialect/Affine/Transforms/Transforms.h"
#include "mlir/Dialect/Affine/Utils.h"
#include "mlir/Transforms/GreedyPatternRewriteDriver.h"

namespace mlir {
namespace affine {
#define GEN_PASS_DEF_AFFINEEXPANDINDEXOPS
#include "mlir/Dialect/Affine/Passes.h.inc"
} // namespace affine
} // namespace mlir

usingnamespacemlir;
usingnamespacemlir::affine;

namespace {
/// Lowers `affine.delinearize_index` into a sequence of division and remainder
/// operations.
struct LowerDelinearizeIndexOps
    : public OpRewritePattern<AffineDelinearizeIndexOp> { … };

class ExpandAffineIndexOpsPass
    : public affine::impl::AffineExpandIndexOpsBase<ExpandAffineIndexOpsPass> { … };

} // namespace

void mlir::affine::populateAffineExpandIndexOpsPatterns(
    RewritePatternSet &patterns) { … }

std::unique_ptr<Pass> mlir::affine::createAffineExpandIndexOpsPass() { … }