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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, bool is_irrelevant) {
message_.set_fresh_id(fresh_id);
message_.set_is_true(is_true);
message_.set_is_irrelevant(is_irrelevant);
}
bool TransformationAddConstantBoolean::IsApplicable(
opt::IRContext* ir_context, const TransformationContext& /*unused*/) const {
return fuzzerutil::MaybeGetBoolType(ir_context) != 0 &&
fuzzerutil::IsFreshId(ir_context, message_.fresh_id());
}
void TransformationAddConstantBoolean::Apply(
opt::IRContext* ir_context,
TransformationContext* transformation_context) const {
// Add the boolean constant to the module, ensuring the module's id bound is
// high enough.
fuzzerutil::UpdateModuleIdBound(ir_context, message_.fresh_id());
ir_context->module()->AddGlobalValue(
message_.is_true() ? SpvOpConstantTrue : SpvOpConstantFalse,
message_.fresh_id(), fuzzerutil::MaybeGetBoolType(ir_context));
// We have added an instruction to the module, so need to be careful about the
// validity of existing analyses.
ir_context->InvalidateAnalysesExceptFor(
opt::IRContext::Analysis::kAnalysisNone);
if (message_.is_irrelevant()) {
transformation_context->GetFactManager()->AddFactIdIsIrrelevant(
message_.fresh_id());
}
}
protobufs::Transformation TransformationAddConstantBoolean::ToMessage() const {
protobufs::Transformation result;
*result.mutable_add_constant_boolean() = message_;
return result;
}
std::unordered_set<uint32_t> TransformationAddConstantBoolean::GetFreshIds()
const {
return {message_.fresh_id()};
}
} // namespace fuzz
} // namespace spvtools