SPIRV-Tools/source/fuzz/transformation_swap_functio...

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// Copyright (c) 2021 Mostafa Ashraf
//
// 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_TRANSFORMATION_SWAP_FUNCTION_VARIABLES_H_
#define SOURCE_FUZZ_TRANSFORMATION_SWAP_FUNCTION_VARIABLES_H_
#include "source/fuzz/protobufs/spirvfuzz_protobufs.h"
#include "source/fuzz/transformation.h"
#include "source/fuzz/transformation_context.h"
#include "source/opt/ir_context.h"
namespace spvtools {
namespace fuzz {
// A transformation that swaps two variable declaration instructions that appear
// in the same function.
class TransformationSwapFunctionVariables : public Transformation {
public:
explicit TransformationSwapFunctionVariables(
protobufs::TransformationSwapFunctionVariables message);
TransformationSwapFunctionVariables(uint32_t result_id1, uint32_t result_id2);
// - |message_.result_id1| and |message_.result_id2| must be the ids of
// distinct OpVariable instructions appearing in the same function.
bool IsApplicable(
opt::IRContext* ir_context,
const TransformationContext& transformation_context) const override;
// Swaps two OpVariable instructions with result ids |message_.result_id1|
// and |message_.result_id2|.
void Apply(opt::IRContext* ir_context,
TransformationContext* transformation_context) const override;
protobufs::Transformation ToMessage() const override;
std::unordered_set<uint32_t> GetFreshIds() const override;
private:
protobufs::TransformationSwapFunctionVariables message_;
};
} // namespace fuzz
} // namespace spvtools
#endif // SOURCE_FUZZ_TRANSFORMATION_SWAP_FUNCTION_VARIABLES_H_