chromium/third_party/spirv-tools/src/source/opt/loop_descriptor.h

// Copyright (c) 2017 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#ifndef SOURCE_OPT_LOOP_DESCRIPTOR_H_
#define SOURCE_OPT_LOOP_DESCRIPTOR_H_

#include <algorithm>
#include <cstdint>
#include <map>
#include <memory>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>

#include "source/opt/basic_block.h"
#include "source/opt/dominator_analysis.h"
#include "source/opt/module.h"
#include "source/opt/tree_iterator.h"

namespace spvtools {
namespace opt {

class IRContext;
class CFG;
class LoopDescriptor;

// A class to represent and manipulate a loop in structured control flow.
class Loop { … };

// Loop descriptions class for a given function.
// For a given function, the class builds loop nests information.
// The analysis expects a structured control flow.
class LoopDescriptor { … };

}  // namespace opt
}  // namespace spvtools

#endif  // SOURCE_OPT_LOOP_DESCRIPTOR_H_