| // 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_constant_boolean.h" |
| |
| #include "source/fuzz/fuzzer_util.h" |
| #include "source/opt/types.h" |
| |
| namespace spvtools { |
| namespace fuzz { |
| |
| TransformationAddConstantBoolean::TransformationAddConstantBoolean( |
| protobufs::TransformationAddConstantBoolean message) |
| : message_(std::move(message)) {} |
| |
| TransformationAddConstantBoolean::TransformationAddConstantBoolean( |
| uint32_t fresh_id, bool is_true, bool is_irrelevant) { |
| message_.set_fresh_id(fresh_id); |
| message_.set_is_true(is_true); |
| message_.set_is_irrelevant(is_irrelevant); |
| } |
| |
| bool TransformationAddConstantBoolean::IsApplicable( |
| opt::IRContext* ir_context, const TransformationContext& /*unused*/) const { |
| return fuzzerutil::MaybeGetBoolType(ir_context) != 0 && |
| fuzzerutil::IsFreshId(ir_context, message_.fresh_id()); |
| } |
| |
| void TransformationAddConstantBoolean::Apply( |
| opt::IRContext* ir_context, |
| TransformationContext* transformation_context) const { |
| // Add the boolean constant to the module, ensuring the module's id bound is |
| // high enough. |
| auto new_instruction = MakeUnique<opt::Instruction>( |
| ir_context, message_.is_true() ? SpvOpConstantTrue : SpvOpConstantFalse, |
| fuzzerutil::MaybeGetBoolType(ir_context), message_.fresh_id(), |
| opt::Instruction::OperandList()); |
| auto new_instruction_ptr = new_instruction.get(); |
| ir_context->module()->AddGlobalValue(std::move(new_instruction)); |
| fuzzerutil::UpdateModuleIdBound(ir_context, message_.fresh_id()); |
| |
| // Inform the def-use manager about the new instruction. Invalidate the |
| // constant manager as we have added a new constant. |
| ir_context->get_def_use_mgr()->AnalyzeInstDef(new_instruction_ptr); |
| ir_context->InvalidateAnalyses(opt::IRContext::kAnalysisConstants); |
| |
| if (message_.is_irrelevant()) { |
| transformation_context->GetFactManager()->AddFactIdIsIrrelevant( |
| message_.fresh_id()); |
| } |
| } |
| |
| protobufs::Transformation TransformationAddConstantBoolean::ToMessage() const { |
| protobufs::Transformation result; |
| *result.mutable_add_constant_boolean() = message_; |
| return result; |
| } |
| |
| std::unordered_set<uint32_t> TransformationAddConstantBoolean::GetFreshIds() |
| const { |
| return {message_.fresh_id()}; |
| } |
| |
| } // namespace fuzz |
| } // namespace spvtools |