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https://github.com/KhronosGroup/SPIRV-Tools
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502e982956
This fixes a problem where TransformationInlineFunction could lead to distinct instructions having identical unique ids. It adds a validity check to detect this problem in general. Fixes #3911.
92 lines
3.1 KiB
C++
92 lines
3.1 KiB
C++
// Copyright (c) 2020 Vasyl Teliman
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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_spec_constant_op.h"
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#include <utility>
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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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TransformationAddSpecConstantOp::TransformationAddSpecConstantOp(
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spvtools::fuzz::protobufs::TransformationAddSpecConstantOp message)
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: message_(std::move(message)) {}
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TransformationAddSpecConstantOp::TransformationAddSpecConstantOp(
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uint32_t fresh_id, uint32_t type_id, SpvOp opcode,
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const opt::Instruction::OperandList& operands) {
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message_.set_fresh_id(fresh_id);
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message_.set_type_id(type_id);
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message_.set_opcode(opcode);
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for (const auto& operand : operands) {
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auto* op = message_.add_operand();
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op->set_operand_type(operand.type);
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for (auto word : operand.words) {
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op->add_operand_data(word);
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}
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}
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}
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bool TransformationAddSpecConstantOp::IsApplicable(
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opt::IRContext* ir_context,
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const TransformationContext& transformation_context) const {
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auto clone = fuzzerutil::CloneIRContext(ir_context);
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ApplyImpl(clone.get());
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return fuzzerutil::IsValid(clone.get(),
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transformation_context.GetValidatorOptions(),
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fuzzerutil::kSilentMessageConsumer);
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}
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void TransformationAddSpecConstantOp::Apply(
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opt::IRContext* ir_context, TransformationContext* /*unused*/) const {
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ApplyImpl(ir_context);
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ir_context->InvalidateAnalysesExceptFor(
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opt::IRContext::Analysis::kAnalysisNone);
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}
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void TransformationAddSpecConstantOp::ApplyImpl(
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opt::IRContext* ir_context) const {
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opt::Instruction::OperandList operands = {
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{SPV_OPERAND_TYPE_SPEC_CONSTANT_OP_NUMBER, {message_.opcode()}}};
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for (const auto& operand : message_.operand()) {
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std::vector<uint32_t> words(operand.operand_data().begin(),
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operand.operand_data().end());
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operands.push_back({static_cast<spv_operand_type_t>(operand.operand_type()),
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std::move(words)});
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}
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ir_context->AddGlobalValue(MakeUnique<opt::Instruction>(
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ir_context, SpvOpSpecConstantOp, message_.type_id(), message_.fresh_id(),
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std::move(operands)));
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fuzzerutil::UpdateModuleIdBound(ir_context, message_.fresh_id());
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}
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protobufs::Transformation TransformationAddSpecConstantOp::ToMessage() const {
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protobufs::Transformation result;
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*result.mutable_add_spec_constant_op() = message_;
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return result;
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}
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std::unordered_set<uint32_t> TransformationAddSpecConstantOp::GetFreshIds()
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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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