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https://github.com/KhronosGroup/SPIRV-Tools
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60ce96e2ff
This change introduces various strategies for controlling the manner in which fuzzer passes are applied repeatedly, including infrastructure to allow fuzzer passes to be recommended based on which passes ran previously.
56 lines
1.9 KiB
C++
56 lines
1.9 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_REPEATED_PASS_MANAGER_H_
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#define SOURCE_FUZZ_REPEATED_PASS_MANAGER_H_
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#include "source/fuzz/fuzzer_context.h"
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#include "source/fuzz/fuzzer_pass.h"
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#include "source/fuzz/pass_management/repeated_pass_instances.h"
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namespace spvtools {
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namespace fuzz {
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// An interface to encapsulate the manner in which the sequence of repeated
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// passes that are applied during fuzzing is chosen. An implementation of this
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// interface could, for example, keep track of the history of passes that have
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// been run and bias the selection of future passes according to this history.
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class RepeatedPassManager {
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public:
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RepeatedPassManager(FuzzerContext* fuzzer_context,
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RepeatedPassInstances* pass_instances);
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virtual ~RepeatedPassManager();
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// Returns the fuzzer pass instance that should be run next.
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virtual FuzzerPass* ChoosePass() = 0;
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protected:
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FuzzerContext* GetFuzzerContext() { return fuzzer_context_; }
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RepeatedPassInstances* GetPassInstances() { return pass_instances_; }
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private:
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// Provided in order to allow the pass manager to make random decisions.
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FuzzerContext* fuzzer_context_;
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// The repeated fuzzer passes that are enabled.
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RepeatedPassInstances* pass_instances_;
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};
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} // namespace fuzz
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} // namespace spvtools
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#endif // SOURCE_FUZZ_REPEATED_PASS_MANAGER_H_
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