SPIRV-Tools/source/fuzz/transformation_set_selection_control.h
Alastair Donaldson 26dba32c43
spirv-fuzz: Add fuzzer pass to change selection controls (#2944)
A new pass that allows the fuzzer to change the 'selection control'
operand of OpSelectionControl instructions.

Fixes #2937.
2019-10-08 11:25:34 +01:00

55 lines
2.0 KiB
C++

// Copyright (c) 2019 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_TRANSFORMATION_SET_SELECTION_CONTROL_H_
#define SOURCE_FUZZ_TRANSFORMATION_SET_SELECTION_CONTROL_H_
#include "source/fuzz/fact_manager.h"
#include "source/fuzz/protobufs/spirvfuzz_protobufs.h"
#include "source/fuzz/transformation.h"
#include "source/opt/ir_context.h"
namespace spvtools {
namespace fuzz {
class TransformationSetSelectionControl : public Transformation {
public:
explicit TransformationSetSelectionControl(
const protobufs::TransformationSetSelectionControl& message);
TransformationSetSelectionControl(uint32_t block_id,
uint32_t selection_control);
// - |message_.block_id| must be a block containing an OpSelectionMerge
// instruction.
// - |message_.selection_control| must be one of None, Flatten or
// DontFlatten.
bool IsApplicable(opt::IRContext* context,
const FactManager& fact_manager) const override;
// - The selection control operand of the OpSelectionMergeInstruction in
// |message_.block_id| is overwritten with |message_.selection_control|.
void Apply(opt::IRContext* context, FactManager* fact_manager) const override;
protobufs::Transformation ToMessage() const override;
private:
protobufs::TransformationSetSelectionControl message_;
};
} // namespace fuzz
} // namespace spvtools
#endif // SOURCE_FUZZ_TRANSFORMATION_SET_SELECTION_CONTROL_H_