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// Copyright (c) 2020 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SOURCE_FUZZ_FUZZER_PASS_ADD_COMPOSITE_TYPES_H_
#define SOURCE_FUZZ_FUZZER_PASS_ADD_COMPOSITE_TYPES_H_
#include "source/fuzz/fuzzer_pass.h"
namespace spvtools {
namespace fuzz {
// Fuzzer pass that randomly adds missing vector and matrix types, and new
// array and struct types, to the module.
class FuzzerPassAddCompositeTypes : public FuzzerPass {
public:
FuzzerPassAddCompositeTypes(
opt::IRContext* ir_context, TransformationContext* transformation_context,
FuzzerContext* fuzzer_context,
protobufs::TransformationSequence* transformations);
void Apply() override;
private:
// Creates an array of a random size with a random existing base type and adds
// it to the module.
void AddNewArrayType();
// Creates a struct with fields of random existing types and adds it to the
// module.
void AddNewStructType();
// For each vector type not already present in the module, randomly decides
// whether to add it to the module.
void MaybeAddMissingVectorTypes();
// For each matrix type not already present in the module, randomly decides
// whether to add it to the module.
void MaybeAddMissingMatrixTypes();
// Returns the id of a scalar or composite type declared in the module,
// chosen randomly.
uint32_t ChooseScalarOrCompositeType();
};
} // namespace fuzz
} // namespace spvtools
#endif // SOURCE_FUZZ_FUZZER_PASS_ADD_COMPOSITE_TYPES_H_
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