mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-10-18 19:20:05 +00:00
1e1c308ded
This PR changes the fact manager so that, when calling some of the functions in submanagers, passes references to other submanagers if necessary (e.g. to make consistency checks). In particular: - DataSynonymAndIdEquationFacts is passed to the AddFactIdIsIrrelevant function of IrrelevantValueFacts - IrrelevantValueFacts is passed to the AddFact functions of DataSynonymAndIdEquationFacts The IRContext is also passed when necessary and the calls to the corresponding functions in FactManager were updated to be valid and always use an updated context. Fixes #3550.
95 lines
3.2 KiB
C++
95 lines
3.2 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_constant_scalar.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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TransformationAddConstantScalar::TransformationAddConstantScalar(
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const spvtools::fuzz::protobufs::TransformationAddConstantScalar& message)
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: message_(message) {}
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TransformationAddConstantScalar::TransformationAddConstantScalar(
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uint32_t fresh_id, uint32_t type_id, const std::vector<uint32_t>& words,
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bool is_irrelevant) {
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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_is_irrelevant(is_irrelevant);
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for (auto word : words) {
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message_.add_word(word);
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}
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}
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bool TransformationAddConstantScalar::IsApplicable(
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opt::IRContext* ir_context, const TransformationContext& /*unused*/) const {
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// The id needs to 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 type id for the scalar must exist and be a type.
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auto type = ir_context->get_type_mgr()->GetType(message_.type_id());
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if (!type) {
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return false;
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}
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uint32_t width;
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if (type->AsFloat()) {
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width = type->AsFloat()->width();
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} else if (type->AsInteger()) {
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width = type->AsInteger()->width();
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} else {
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return false;
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}
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// The number of words is the integer floor of the width.
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auto words = (width + 32 - 1) / 32;
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// The number of words provided by the transformation needs to match the
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// width of the type.
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return static_cast<uint32_t>(message_.word().size()) == words;
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}
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void TransformationAddConstantScalar::Apply(
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opt::IRContext* ir_context,
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TransformationContext* transformation_context) const {
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ir_context->module()->AddGlobalValue(MakeUnique<opt::Instruction>(
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ir_context, SpvOpConstant, message_.type_id(), message_.fresh_id(),
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opt::Instruction::OperandList(
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{{SPV_OPERAND_TYPE_LITERAL_INTEGER,
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std::vector<uint32_t>(message_.word().begin(),
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message_.word().end())}})));
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fuzzerutil::UpdateModuleIdBound(ir_context, message_.fresh_id());
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// We have added an instruction to the module, so need to be careful about the
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// validity of existing analyses.
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ir_context->InvalidateAnalysesExceptFor(
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opt::IRContext::Analysis::kAnalysisNone);
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if (message_.is_irrelevant()) {
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transformation_context->GetFactManager()->AddFactIdIsIrrelevant(
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message_.fresh_id(), ir_context);
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}
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}
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protobufs::Transformation TransformationAddConstantScalar::ToMessage() const {
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protobufs::Transformation result;
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*result.mutable_add_constant_scalar() = message_;
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return result;
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}
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} // namespace fuzz
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} // namespace spvtools
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