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https://github.com/KhronosGroup/SPIRV-Tools
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5dcb576b69
Motivated by integrating spirv-reduce into spirv-fuzz, so that an added function can be made smaller during shrinking, this adds support in spirv-reduce for asking reduction to be restricted to the instructions of a single specified function.
59 lines
2.1 KiB
C++
59 lines
2.1 KiB
C++
// Copyright (c) 2019 Google LLC
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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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#ifndef SOURCE_REDUCE_REDUCTION_OPPORTUNITY_FINDER_H_
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#define SOURCE_REDUCE_REDUCTION_OPPORTUNITY_FINDER_H_
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#include <vector>
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#include "source/opt/ir_context.h"
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#include "source/reduce/reduction_opportunity.h"
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namespace spvtools {
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namespace reduce {
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// Abstract class for finding opportunities for reducing a SPIR-V module.
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class ReductionOpportunityFinder {
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public:
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ReductionOpportunityFinder() = default;
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virtual ~ReductionOpportunityFinder() = default;
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// Finds and returns the reduction opportunities relevant to this pass that
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// could be applied to SPIR-V module |context|.
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//
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// If |target_function| is non-zero then the available opportunities will be
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// restricted to only those opportunities that modify the function with result
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// id |target_function|.
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virtual std::vector<std::unique_ptr<ReductionOpportunity>>
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GetAvailableOpportunities(opt::IRContext* context,
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uint32_t target_function) const = 0;
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// Provides a name for the finder.
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virtual std::string GetName() const = 0;
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protected:
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// Requires that |target_function| is zero or the id of a function in
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// |ir_context|. If |target_function| is zero, returns all the functions in
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// |ir_context|. Otherwise, returns the function with id |target_function|.
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// This allows fuzzer passes to restrict attention to a single function.
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static std::vector<opt::Function*> GetTargetFunctions(
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opt::IRContext* ir_context, uint32_t target_function);
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};
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} // namespace reduce
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} // namespace spvtools
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#endif // SOURCE_REDUCE_REDUCTION_OPPORTUNITY_FINDER_H_
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