blob: 87ce8ad1e2b2e393e125fc3ab2bf7c283c99652f [file] [log] [blame]
// 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_TRANSFORMATION_REPLACE_OPPHI_ID_FROM_DEAD_PREDECESSOR_H_
#define SOURCE_FUZZ_TRANSFORMATION_REPLACE_OPPHI_ID_FROM_DEAD_PREDECESSOR_H_
#include "source/fuzz/transformation.h"
namespace spvtools {
namespace fuzz {
class TransformationReplaceOpPhiIdFromDeadPredecessor : public Transformation {
public:
explicit TransformationReplaceOpPhiIdFromDeadPredecessor(
protobufs::TransformationReplaceOpPhiIdFromDeadPredecessor message);
TransformationReplaceOpPhiIdFromDeadPredecessor(uint32_t opphi_id,
uint32_t pred_label_id,
uint32_t replacement_id);
// - |message_.opphi_id| is the id of an OpPhi instruction.
// - |message_.pred_label_id| is the label id of one of the predecessors of
// the block containing the OpPhi instruction.
// - The predecessor has been recorded as dead.
// - |message_.replacement_id| is the id of an instruction with the same type
// as the OpPhi instruction, available at the end of the predecessor.
bool IsApplicable(
opt::IRContext* ir_context,
const TransformationContext& transformation_context) const override;
// Replaces the id corresponding to predecessor |message_.pred_label_id|, in
// the OpPhi instruction |message_.opphi_id|, with |message_.replacement_id|.
void Apply(opt::IRContext* ir_context,
TransformationContext* transformation_context) const override;
std::unordered_set<uint32_t> GetFreshIds() const override;
protobufs::Transformation ToMessage() const override;
private:
protobufs::TransformationReplaceOpPhiIdFromDeadPredecessor message_;
};
} // namespace fuzz
} // namespace spvtools
#endif // SOURCE_FUZZ_TRANSFORMATION_REPLACE_OPPHI_ID_FROM_DEAD_PREDECESSOR_H_