| // Copyright (c) 2020 André Perez Maselco |
| // |
| // 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. |
| |
| #include "source/fuzz/transformation_swap_commutable_operands.h" |
| |
| #include "source/fuzz/fuzzer_util.h" |
| #include "source/fuzz/instruction_descriptor.h" |
| |
| namespace spvtools { |
| namespace fuzz { |
| |
| TransformationSwapCommutableOperands::TransformationSwapCommutableOperands( |
| protobufs::TransformationSwapCommutableOperands message) |
| : message_(std::move(message)) {} |
| |
| TransformationSwapCommutableOperands::TransformationSwapCommutableOperands( |
| const protobufs::InstructionDescriptor& instruction_descriptor) { |
| *message_.mutable_instruction_descriptor() = instruction_descriptor; |
| } |
| |
| bool TransformationSwapCommutableOperands::IsApplicable( |
| opt::IRContext* ir_context, const TransformationContext& /*unused*/) const { |
| auto instruction = |
| FindInstruction(message_.instruction_descriptor(), ir_context); |
| if (instruction == nullptr) return false; |
| |
| SpvOp opcode = static_cast<SpvOp>( |
| message_.instruction_descriptor().target_instruction_opcode()); |
| assert(instruction->opcode() == opcode && |
| "The located instruction must have the same opcode as in the " |
| "descriptor."); |
| return spvOpcodeIsCommutativeBinaryOperator(opcode); |
| } |
| |
| void TransformationSwapCommutableOperands::Apply( |
| opt::IRContext* ir_context, TransformationContext* /*unused*/) const { |
| auto instruction = |
| FindInstruction(message_.instruction_descriptor(), ir_context); |
| // By design, the instructions defined to be commutative have exactly two |
| // input parameters. |
| std::swap(instruction->GetInOperand(0), instruction->GetInOperand(1)); |
| } |
| |
| protobufs::Transformation TransformationSwapCommutableOperands::ToMessage() |
| const { |
| protobufs::Transformation result; |
| *result.mutable_swap_commutable_operands() = message_; |
| return result; |
| } |
| |
| std::unordered_set<uint32_t> TransformationSwapCommutableOperands::GetFreshIds() |
| const { |
| return std::unordered_set<uint32_t>(); |
| } |
| |
| } // namespace fuzz |
| } // namespace spvtools |