75 строки
2.7 KiB
C++
75 строки
2.7 KiB
C++
// Copyright (c) 2019 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "source/fuzz/transformation_add_type_pointer.h"
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#include "source/fuzz/fuzzer_util.h"
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namespace spvtools {
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namespace fuzz {
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TransformationAddTypePointer::TransformationAddTypePointer(
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protobufs::TransformationAddTypePointer message)
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: message_(std::move(message)) {}
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TransformationAddTypePointer::TransformationAddTypePointer(
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uint32_t fresh_id, spv::StorageClass storage_class, uint32_t base_type_id) {
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message_.set_fresh_id(fresh_id);
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message_.set_storage_class(uint32_t(storage_class));
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message_.set_base_type_id(base_type_id);
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}
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bool TransformationAddTypePointer::IsApplicable(
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opt::IRContext* ir_context, const TransformationContext& /*unused*/) const {
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// The id must be fresh.
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if (!fuzzerutil::IsFreshId(ir_context, message_.fresh_id())) {
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return false;
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}
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// The base type must be known.
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return ir_context->get_type_mgr()->GetType(message_.base_type_id()) !=
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nullptr;
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}
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void TransformationAddTypePointer::Apply(
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opt::IRContext* ir_context, TransformationContext* /*unused*/) const {
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// Add the pointer type.
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opt::Instruction::OperandList in_operands = {
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{SPV_OPERAND_TYPE_STORAGE_CLASS, {message_.storage_class()}},
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{SPV_OPERAND_TYPE_ID, {message_.base_type_id()}}};
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auto type_instruction = MakeUnique<opt::Instruction>(
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ir_context, spv::Op::OpTypePointer, 0, message_.fresh_id(), in_operands);
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auto type_instruction_ptr = type_instruction.get();
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ir_context->module()->AddType(std::move(type_instruction));
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fuzzerutil::UpdateModuleIdBound(ir_context, message_.fresh_id());
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// Inform the def use manager that there is a new definition. Invalidate the
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// type manager since we have added a new type.
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ir_context->get_def_use_mgr()->AnalyzeInstDef(type_instruction_ptr);
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ir_context->InvalidateAnalyses(opt::IRContext::kAnalysisTypes);
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}
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protobufs::Transformation TransformationAddTypePointer::ToMessage() const {
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protobufs::Transformation result;
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*result.mutable_add_type_pointer() = message_;
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return result;
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}
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std::unordered_set<uint32_t> TransformationAddTypePointer::GetFreshIds() const {
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return {message_.fresh_id()};
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}
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} // namespace fuzz
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} // namespace spvtools
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