| // 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/fuzzer_pass_swap_commutable_operands.h" |
| |
| #include "source/fuzz/fuzzer_util.h" |
| #include "source/fuzz/instruction_descriptor.h" |
| #include "source/fuzz/transformation_swap_commutable_operands.h" |
| |
| namespace spvtools { |
| namespace fuzz { |
| |
| FuzzerPassSwapCommutableOperands::FuzzerPassSwapCommutableOperands( |
| opt::IRContext* ir_context, TransformationContext* transformation_context, |
| FuzzerContext* fuzzer_context, |
| protobufs::TransformationSequence* transformations) |
| : FuzzerPass(ir_context, transformation_context, fuzzer_context, |
| transformations) {} |
| |
| void FuzzerPassSwapCommutableOperands::Apply() { |
| auto context = GetIRContext(); |
| // Iterates over the module's instructions and checks whether it is |
| // commutative. In this case, the transformation is probabilistically applied. |
| context->module()->ForEachInst( |
| [this, context](opt::Instruction* instruction) { |
| if (spvOpcodeIsCommutativeBinaryOperator(instruction->opcode()) && |
| GetFuzzerContext()->ChooseEven()) { |
| auto instructionDescriptor = |
| MakeInstructionDescriptor(context, instruction); |
| auto transformation = |
| TransformationSwapCommutableOperands(instructionDescriptor); |
| ApplyTransformation(transformation); |
| } |
| }); |
| } |
| |
| } // namespace fuzz |
| } // namespace spvtools |
