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

//===- SimplifyAffineStructures.cpp ---------------------------------------===//
//
// 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 simplify affine structures in operations.
//
//===----------------------------------------------------------------------===//

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

#include "mlir/Dialect/Affine/Analysis/Utils.h"
#include "mlir/Dialect/Affine/IR/AffineOps.h"
#include "mlir/Dialect/Affine/Utils.h"
#include "mlir/Dialect/Func/IR/FuncOps.h"
#include "mlir/IR/IntegerSet.h"
#include "mlir/Transforms/GreedyPatternRewriteDriver.h"

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

#define DEBUG_TYPE …

usingnamespacemlir;
usingnamespacemlir::affine;

namespace {

/// Simplifies affine maps and sets appearing in the operations of the Function.
/// This part is mainly to test the simplifyAffineExpr method. In addition,
/// all memrefs with non-trivial layout maps are converted to ones with trivial
/// identity layout ones.
struct SimplifyAffineStructures
    : public affine::impl::SimplifyAffineStructuresBase<
          SimplifyAffineStructures> { … };

} // namespace

std::unique_ptr<OperationPass<func::FuncOp>>
mlir::affine::createSimplifyAffineStructuresPass() { … }

void SimplifyAffineStructures::runOnOperation() { … }