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https://github.com/KhronosGroup/SPIRV-Tools
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3daabd3212
A transformation that replaces the use of an irrelevant id with another id of the same type. The related fuzzer pass, for every use of an irrelevant id, checks whether the id can be replaced in that use by another id of the same type and randomly decides whether to replace it. Fixes #3503.
56 lines
1.9 KiB
C++
56 lines
1.9 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_FUZZ_FACT_MANAGER_IRRELEVANT_VALUE_FACTS_H_
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#define SOURCE_FUZZ_FACT_MANAGER_IRRELEVANT_VALUE_FACTS_H_
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#include <unordered_set>
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#include "source/fuzz/protobufs/spirvfuzz_protobufs.h"
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#include "source/opt/ir_context.h"
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namespace spvtools {
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namespace fuzz {
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namespace fact_manager {
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// The purpose of this class is to group the fields and data used to represent
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// facts about various irrelevant values in the module.
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class IrrelevantValueFacts {
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public:
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// See method in FactManager which delegates to this method.
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void AddFact(const protobufs::FactPointeeValueIsIrrelevant& fact);
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// See method in FactManager which delegates to this method.
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void AddFact(const protobufs::FactIdIsIrrelevant& fact);
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// See method in FactManager which delegates to this method.
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bool PointeeValueIsIrrelevant(uint32_t pointer_id) const;
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// See method in FactManager which delegates to this method.
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bool IdIsIrrelevant(uint32_t pointer_id) const;
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// See method in FactManager which delegates to this method.
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const std::unordered_set<uint32_t>& GetIrrelevantIds() const;
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private:
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std::unordered_set<uint32_t> pointers_to_irrelevant_pointees_ids_;
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std::unordered_set<uint32_t> irrelevant_ids_;
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};
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} // namespace fact_manager
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} // namespace fuzz
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} // namespace spvtools
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#endif // SOURCE_FUZZ_FACT_MANAGER_IRRELEVANT_VALUE_FACTS_H_
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