| // 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_TRANSFORMATION_MOVE_INSTRUCTION_DOWN_H_ |
| #define SOURCE_FUZZ_TRANSFORMATION_MOVE_INSTRUCTION_DOWN_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 { |
| |
| class TransformationMoveInstructionDown : public Transformation { |
| public: |
| explicit TransformationMoveInstructionDown( |
| const protobufs::TransformationMoveInstructionDown& message); |
| |
| explicit TransformationMoveInstructionDown( |
| const protobufs::InstructionDescriptor& instruction); |
| |
| // - |instruction| should be a descriptor of a valid instruction in the module |
| // - |instruction|'s opcode should be supported by this transformation |
| // - neither |instruction| nor its successor may be the last instruction in |
| // the block |
| // - |instruction|'s successor may not be dependent on the |instruction| |
| // - it should be possible to insert |instruction|'s opcode after its |
| // successor |
| bool IsApplicable( |
| opt::IRContext* ir_context, |
| const TransformationContext& transformation_context) const override; |
| |
| // Swaps |instruction| with its successor. |
| void Apply(opt::IRContext* ir_context, |
| TransformationContext* transformation_context) const override; |
| |
| protobufs::Transformation ToMessage() const override; |
| |
| private: |
| // Returns true if the |opcode| is supported by this transformation (i.e. |
| // we can move an instruction with this opcode). |
| static bool IsOpcodeSupported(SpvOp opcode); |
| |
| protobufs::TransformationMoveInstructionDown message_; |
| }; |
| |
| } // namespace fuzz |
| } // namespace spvtools |
| |
| #endif // SOURCE_FUZZ_TRANSFORMATION_MOVE_INSTRUCTION_DOWN_H_ |