| // 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. |
| |
| #include "source/fuzz/transformation_add_type_struct.h" |
| |
| #include "source/fuzz/fuzzer_util.h" |
| |
| namespace spvtools { |
| namespace fuzz { |
| |
| TransformationAddTypeStruct::TransformationAddTypeStruct( |
| const spvtools::fuzz::protobufs::TransformationAddTypeStruct& message) |
| : message_(message) {} |
| |
| TransformationAddTypeStruct::TransformationAddTypeStruct( |
| uint32_t fresh_id, const std::vector<uint32_t>& member_type_ids) { |
| message_.set_fresh_id(fresh_id); |
| for (auto member_type_id : member_type_ids) { |
| message_.add_member_type_id(member_type_id); |
| } |
| } |
| |
| bool TransformationAddTypeStruct::IsApplicable( |
| opt::IRContext* context, |
| const spvtools::fuzz::FactManager& /*unused*/) const { |
| // A fresh id is required. |
| if (!fuzzerutil::IsFreshId(context, message_.fresh_id())) { |
| return false; |
| } |
| for (auto member_type : message_.member_type_id()) { |
| auto type = context->get_type_mgr()->GetType(member_type); |
| if (!type || type->AsFunction()) { |
| // The member type id either does not refer to a type, or refers to a |
| // function type; both are illegal. |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| void TransformationAddTypeStruct::Apply( |
| opt::IRContext* context, spvtools::fuzz::FactManager* /*unused*/) const { |
| opt::Instruction::OperandList in_operands; |
| for (auto member_type : message_.member_type_id()) { |
| in_operands.push_back({SPV_OPERAND_TYPE_ID, {member_type}}); |
| } |
| context->module()->AddType(MakeUnique<opt::Instruction>( |
| context, SpvOpTypeStruct, 0, message_.fresh_id(), in_operands)); |
| fuzzerutil::UpdateModuleIdBound(context, message_.fresh_id()); |
| // We have added an instruction to the module, so need to be careful about the |
| // validity of existing analyses. |
| context->InvalidateAnalysesExceptFor(opt::IRContext::Analysis::kAnalysisNone); |
| } |
| |
| protobufs::Transformation TransformationAddTypeStruct::ToMessage() const { |
| protobufs::Transformation result; |
| *result.mutable_add_type_struct() = message_; |
| return result; |
| } |
| |
| } // namespace fuzz |
| } // namespace spvtools |