| // 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_make_vector_operations_dynamic.h" |
| |
| #include "source/fuzz/fuzzer_util.h" |
| #include "source/fuzz/instruction_descriptor.h" |
| #include "source/fuzz/transformation_make_vector_operation_dynamic.h" |
| |
| namespace spvtools { |
| namespace fuzz { |
| |
| FuzzerPassMakeVectorOperationsDynamic::FuzzerPassMakeVectorOperationsDynamic( |
| opt::IRContext* ir_context, TransformationContext* transformation_context, |
| FuzzerContext* fuzzer_context, |
| protobufs::TransformationSequence* transformations, |
| bool ignore_inapplicable_transformations) |
| : FuzzerPass(ir_context, transformation_context, fuzzer_context, |
| transformations, ignore_inapplicable_transformations) {} |
| |
| void FuzzerPassMakeVectorOperationsDynamic::Apply() { |
| for (auto& function : *GetIRContext()->module()) { |
| for (auto& block : function) { |
| for (auto& instruction : block) { |
| // Randomly decide whether to try applying the transformation. |
| if (!GetFuzzerContext()->ChoosePercentage( |
| GetFuzzerContext() |
| ->GetChanceOfMakingVectorOperationDynamic())) { |
| continue; |
| } |
| |
| // |instruction| must be a vector operation. |
| if (!TransformationMakeVectorOperationDynamic::IsVectorOperation( |
| GetIRContext(), &instruction)) { |
| continue; |
| } |
| |
| // Make sure |instruction| has only one indexing operand. |
| assert(instruction.NumInOperands() == |
| (instruction.opcode() == SpvOpCompositeExtract ? 2 : 3) && |
| "FuzzerPassMakeVectorOperationsDynamic: the composite " |
| "instruction must have " |
| "only one indexing operand."); |
| |
| // Applies the make vector operation dynamic transformation. |
| ApplyTransformation(TransformationMakeVectorOperationDynamic( |
| instruction.result_id(), |
| FindOrCreateIntegerConstant( |
| {instruction.GetSingleWordInOperand( |
| instruction.opcode() == SpvOpCompositeExtract ? 1 : 2)}, |
| 32, GetFuzzerContext()->ChooseEven(), false))); |
| } |
| } |
| } |
| } |
| |
| } // namespace fuzz |
| } // namespace spvtools |