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https://github.com/KhronosGroup/SPIRV-Tools
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9e26ae0455
This change adds the notion of "overflow ids", which can be used during shrinking to facilitate applying transformations that would otherwise have become inapplicable due to earlier transformations being removed.
75 lines
2.5 KiB
C++
75 lines
2.5 KiB
C++
// Copyright (c) 2020 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_FUZZ_TRANSFORMATION_CONTEXT_H_
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#define SOURCE_FUZZ_TRANSFORMATION_CONTEXT_H_
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#include <memory>
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#include "source/fuzz/fact_manager/fact_manager.h"
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#include "source/fuzz/overflow_id_source.h"
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#include "spirv-tools/libspirv.hpp"
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namespace spvtools {
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namespace fuzz {
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// Encapsulates all information that is required to inform how to apply a
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// transformation to a module.
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class TransformationContext {
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public:
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// Constructs a transformation context with a given fact manager and validator
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// options. Overflow ids are not available from a transformation context
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// constructed in this way.
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TransformationContext(FactManager* fact_manager,
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spv_validator_options validator_options);
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// Constructs a transformation context with a given fact manager, validator
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// options and overflow id source.
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TransformationContext(FactManager* fact_manager,
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spv_validator_options validator_options,
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std::unique_ptr<OverflowIdSource> overflow_id_source);
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~TransformationContext();
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FactManager* GetFactManager() { return fact_manager_; }
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const FactManager* GetFactManager() const { return fact_manager_; }
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OverflowIdSource* GetOverflowIdSource() { return overflow_id_source_.get(); }
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const OverflowIdSource* GetOverflowIdSource() const {
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return overflow_id_source_.get();
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}
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spv_validator_options GetValidatorOptions() const {
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return validator_options_;
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}
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private:
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// Manages facts that inform whether transformations can be applied, and that
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// are produced by applying transformations.
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FactManager* fact_manager_;
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// Options to control validation when deciding whether transformations can be
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// applied.
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spv_validator_options validator_options_;
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std::unique_ptr<OverflowIdSource> overflow_id_source_;
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};
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} // namespace fuzz
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} // namespace spvtools
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#endif // SOURCE_FUZZ_TRANSFORMATION_CONTEXT_H_
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