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// Copyright (c) 2020 Vasyl Teliman
//
// 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_PERMUTE_FUNCTION_PARAMETERS_H_
#define SOURCE_FUZZ_FUZZER_PASS_PERMUTE_FUNCTION_PARAMETERS_H_
#include "source/fuzz/fuzzer_pass.h"
namespace spvtools {
namespace fuzz {
// Fuzzer pass that, given a non-entry-point function taking n parameters
// and a permutation of the set [0, n - 1]:
// 1. Introduces a new function type that is the same as the original
// function's type but with the order of arguments permuted
// (only add this if it doesn't already exist)
// 2. Changes the type of the function to this type
// 3. Adjusts all calls to the function so that their arguments are permuted
class FuzzerPassPermuteFunctionParameters : public FuzzerPass {
public:
FuzzerPassPermuteFunctionParameters(
opt::IRContext* ir_context, TransformationContext* transformation_context,
FuzzerContext* fuzzer_context,
protobufs::TransformationSequence* transformations);
~FuzzerPassPermuteFunctionParameters() override;
void Apply() override;
};
} // namespace fuzz
} // namespace spvtools
#endif // SOURCE_FUZZ_FUZZER_PASS_PERMUTE_FUNCTION_PARAMETERS_H_