SPIRV-Tools/source/fuzz/transformation_add_constant_boolean.cpp

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// 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(
const protobufs::TransformationAddConstantBoolean& message)
: message_(message) {}
TransformationAddConstantBoolean::TransformationAddConstantBoolean(
uint32_t fresh_id, bool is_true) {
message_.set_fresh_id(fresh_id);
message_.set_is_true(is_true);
}
bool TransformationAddConstantBoolean::IsApplicable(
opt::IRContext* context, const FactManager& /*unused*/) const {
opt::analysis::Bool bool_type;
if (!context->get_type_mgr()->GetId(&bool_type)) {
// No OpTypeBool is present.
return false;
}
return fuzzerutil::IsFreshId(context, message_.fresh_id());
}
void TransformationAddConstantBoolean::Apply(opt::IRContext* context,
FactManager* /*unused*/) const {
opt::analysis::Bool bool_type;
// Add the boolean constant to the module, ensuring the module's id bound is
// high enough.
fuzzerutil::UpdateModuleIdBound(context, message_.fresh_id());
context->module()->AddGlobalValue(
message_.is_true() ? SpvOpConstantTrue : SpvOpConstantFalse,
message_.fresh_id(), context->get_type_mgr()->GetId(&bool_type));
// We have added an instruction to the module, so need to be careful about the
// validity of existing analyses.
context->InvalidateAnalysesExceptFor(opt::IRContext::Analysis::kAnalysisNone);
}
protobufs::Transformation TransformationAddConstantBoolean::ToMessage() const {
protobufs::Transformation result;
*result.mutable_add_constant_boolean() = message_;
return result;
}
} // namespace fuzz
} // namespace spvtools