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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.
#ifndef SOURCE_FUZZ_TRANSFORMATION_ADD_GLOBAL_VARIABLE_H_
#define SOURCE_FUZZ_TRANSFORMATION_ADD_GLOBAL_VARIABLE_H_
#include "source/fuzz/protobufs/spirvfuzz_protobufs.h"
#include "source/fuzz/transformation.h"
#include "source/fuzz/transformation_context.h"
#include "source/opt/ir_context.h"
namespace spvtools {
namespace fuzz {
class TransformationAddGlobalVariable : public Transformation {
public:
explicit TransformationAddGlobalVariable(
protobufs::TransformationAddGlobalVariable message);
TransformationAddGlobalVariable(uint32_t fresh_id, uint32_t type_id,
spv::StorageClass storage_class,
uint32_t initializer_id,
bool value_is_irrelevant);
// - |message_.fresh_id| must be fresh
// - |message_.type_id| must be the id of a pointer type with the same storage
// class as |message_.storage_class|
// - |message_.storage_class| must be Private or Workgroup
// - |message_.initializer_id| must be 0 if |message_.storage_class| is
// Workgroup, and otherwise may either be 0 or the id of a constant whose
// type is the pointee type of |message_.type_id|
bool IsApplicable(
opt::IRContext* ir_context,
const TransformationContext& transformation_context) const override;
// Adds a global variable with storage class |message_.storage_class| to the
// module, with type |message_.type_id| and either no initializer or
// |message_.initializer_id| as an initializer, depending on whether
// |message_.initializer_id| is 0. The global variable has result id
// |message_.fresh_id|.
//
// If |message_.value_is_irrelevant| holds, adds a corresponding fact to the
// fact manager in |transformation_context|.
void Apply(opt::IRContext* ir_context,
TransformationContext* transformation_context) const override;
std::unordered_set<uint32_t> GetFreshIds() const override;
protobufs::Transformation ToMessage() const override;
private:
protobufs::TransformationAddGlobalVariable message_;
};
} // namespace fuzz
} // namespace spvtools
#endif // SOURCE_FUZZ_TRANSFORMATION_ADD_GLOBAL_VARIABLE_H_
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