wehub-resource-sync
60 lines
2.0 KiB
C++
60 lines
2.0 KiB
C++
// Copyright (c) 2023 PaddlePaddle Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// The design and code is mainly from MLIR, thanks to the great project.
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#pragma once
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#include <functional>
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#include <unordered_map>
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#include "paddle/pir/include/core/op_info.h"
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#include "paddle/pir/include/core/operation.h"
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#include "paddle/pir/include/pattern_rewrite/pattern_match.h"
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namespace pir {
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class FrozenRewritePatternSet;
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class RewritePattern;
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class Pattern;
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class PatternApplicator {
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public:
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using CostModel = std::function<PatternBenefit(const Pattern&)>;
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explicit PatternApplicator(const FrozenRewritePatternSet& frozen_patter_list);
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~PatternApplicator() = default;
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bool MatchAndRewrite(Operation* op,
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PatternRewriter& rewriter, // NOLINT
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std::function<bool(const Pattern&)> can_apply = {},
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std::function<void(const Pattern&)> on_failure = {},
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std::function<bool(const Pattern&)> on_success = {});
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void ApplyCostModel(const CostModel& model);
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void ApplyDefaultCostModel() {
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ApplyCostModel([](const Pattern& pattern) { return pattern.benefit(); });
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}
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void WalkAllPatterns(std::function<void(const Pattern&)> walk);
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private:
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const FrozenRewritePatternSet& frozen_pattern_list_;
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std::unordered_map<OpInfo, std::vector<const RewritePattern*>> patterns_;
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std::vector<const RewritePattern*> any_op_patterns_;
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};
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} // namespace pir
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