| // 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_expand_vector_reductions.h" |
| |
| #include "source/fuzz/fuzzer_util.h" |
| #include "source/fuzz/instruction_descriptor.h" |
| #include "source/fuzz/transformation_expand_vector_reduction.h" |
| |
| namespace spvtools { |
| namespace fuzz { |
| |
| FuzzerPassExpandVectorReductions::FuzzerPassExpandVectorReductions( |
| 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 FuzzerPassExpandVectorReductions::Apply() { |
| for (auto& function : *GetIRContext()->module()) { |
| for (auto& block : function) { |
| for (auto& instruction : block) { |
| // Randomly decides whether the transformation will be applied. |
| if (!GetFuzzerContext()->ChoosePercentage( |
| GetFuzzerContext()->GetChanceOfExpandingVectorReduction())) { |
| continue; |
| } |
| |
| // |instruction| must be OpAny or OpAll. |
| if (instruction.opcode() != SpvOpAny && |
| instruction.opcode() != SpvOpAll) { |
| continue; |
| } |
| |
| // It must be able to make a synonym of |instruction|. |
| if (!fuzzerutil::CanMakeSynonymOf( |
| GetIRContext(), *GetTransformationContext(), instruction)) { |
| continue; |
| } |
| |
| // Applies the expand vector reduction transformation. |
| ApplyTransformation(TransformationExpandVectorReduction( |
| instruction.result_id(), |
| GetFuzzerContext()->GetFreshIds( |
| TransformationExpandVectorReduction::GetRequiredFreshIdCount( |
| GetIRContext(), &instruction)))); |
| } |
| } |
| } |
| } |
| |
| } // namespace fuzz |
| } // namespace spvtools |