SPIRV-Tools/source/fuzz/fact_manager/irrelevant_value_facts.cpp
Stefano Milizia 1e1c308ded
spirv-fuzz: Pass submanagers to other submanagers when necessary (#3796)
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.
2020-09-15 13:27:14 +01:00

75 lines
2.9 KiB
C++

// 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/fact_manager/irrelevant_value_facts.h"
#include "source/fuzz/data_descriptor.h"
#include "source/fuzz/fact_manager/data_synonym_and_id_equation_facts.h"
#include "source/opt/ir_context.h"
namespace spvtools {
namespace fuzz {
namespace fact_manager {
void IrrelevantValueFacts::AddFact(
const protobufs::FactPointeeValueIsIrrelevant& fact,
const DataSynonymAndIdEquationFacts& data_synonym_and_id_equation_facts,
opt::IRContext* context) {
(void)data_synonym_and_id_equation_facts; // Keep release compilers happy.
assert(data_synonym_and_id_equation_facts.GetSynonymsForId(fact.pointer_id())
.empty() &&
"The id cannot participate in DataSynonym facts.");
auto pointer_def = context->get_def_use_mgr()->GetDef(fact.pointer_id());
assert(pointer_def && "The id must exist in the module.");
auto type = context->get_type_mgr()->GetType(pointer_def->type_id());
(void)type; // Keep release compilers happy.
assert(type && type->AsPointer() && "The id must be a pointer.");
pointers_to_irrelevant_pointees_ids_.insert(fact.pointer_id());
}
void IrrelevantValueFacts::AddFact(
const protobufs::FactIdIsIrrelevant& fact,
const DataSynonymAndIdEquationFacts& data_synonym_and_id_equation_facts,
opt::IRContext* context) {
(void)data_synonym_and_id_equation_facts; // Keep release compilers happy.
assert(data_synonym_and_id_equation_facts.GetSynonymsForId(fact.result_id())
.empty() &&
"The id cannot participate in DataSynonym facts.");
auto pointer_def = context->get_def_use_mgr()->GetDef(fact.result_id());
assert(pointer_def && "The id must exist in the module.");
auto type = context->get_type_mgr()->GetType(pointer_def->type_id());
(void)type; // Keep release compilers happy.
assert(type && !type->AsPointer() && "The id must not be a pointer.");
irrelevant_ids_.insert(fact.result_id());
}
bool IrrelevantValueFacts::PointeeValueIsIrrelevant(uint32_t pointer_id) const {
return pointers_to_irrelevant_pointees_ids_.count(pointer_id) != 0;
}
bool IrrelevantValueFacts::IdIsIrrelevant(uint32_t pointer_id) const {
return irrelevant_ids_.count(pointer_id) != 0;
}
const std::unordered_set<uint32_t>& IrrelevantValueFacts::GetIrrelevantIds()
const {
return irrelevant_ids_;
}
} // namespace fact_manager
} // namespace fuzz
} // namespace spvtools