| // 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_COPY_OBJECT_H_ |
| #define SOURCE_FUZZ_TRANSFORMATION_COPY_OBJECT_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 TransformationCopyObject : public Transformation { |
| public: |
| explicit TransformationCopyObject( |
| const protobufs::TransformationCopyObject& message); |
| |
| TransformationCopyObject( |
| uint32_t object, |
| const protobufs::InstructionDescriptor& instruction_to_insert_before, |
| uint32_t fresh_id); |
| |
| // - |message_.fresh_id| must not be used by the module. |
| // - |message_.object| must be a result id that is a legitimate operand for |
| // OpCopyObject. In particular, it must be the id of an instruction that |
| // has a result type |
| // - |message_.object| must not be the target of any decoration. |
| // TODO(afd): consider copying decorations along with objects. |
| // - |message_.base_instruction_id| must be the result id of an instruction |
| // 'base' in some block 'blk'. |
| // - 'blk' must contain an instruction 'inst' located |message_.offset| |
| // instructions after 'base' (if |message_.offset| = 0 then 'inst' = |
| // 'base'). |
| // - It must be legal to insert an OpCopyObject instruction directly |
| // before 'inst'. |
| // - |message_.object| must be available directly before 'inst'. |
| bool IsApplicable(opt::IRContext* context, |
| const FactManager& fact_manager) const override; |
| |
| // - A new instruction, |
| // %|message_.fresh_id| = OpCopyObject %ty %|message_.object| |
| // is added directly before the instruction at |message_.insert_after_id| + |
| // |message_|.offset, where %ty is the type of |message_.object|. |
| // - The fact that |message_.fresh_id| and |message_.object| are synonyms |
| // is added to the fact manager. |
| void Apply(opt::IRContext* context, FactManager* fact_manager) const override; |
| |
| protobufs::Transformation ToMessage() const override; |
| |
| private: |
| protobufs::TransformationCopyObject message_; |
| }; |
| |
| } // namespace fuzz |
| } // namespace spvtools |
| |
| #endif // SOURCE_FUZZ_TRANSFORMATION_COPY_OBJECT_H_ |