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// Copyright (c) 2021 Shiyu Liu
//
// 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_WRAP_VECTOR_SYNONYM_H_
#define SOURCE_FUZZ_TRANSFORMATION_WRAP_VECTOR_SYNONYM_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 TransformationWrapVectorSynonym : public Transformation {
public:
explicit TransformationWrapVectorSynonym(
protobufs::TransformationWrapVectorSynonym message);
TransformationWrapVectorSynonym(uint32_t instruction_id,
uint32_t vector_operand1,
uint32_t vector_operand2, uint32_t fresh_id,
uint32_t pos);
// - |instruction_id| must be the id of a supported arithmetic operation
// and must be relevant.
// - |vector_operand1| and |vector_operand2| represents the result ids of the
// two vector operands.
// - |fresh_id| is an unused id that will be used as a result id of the
// created instruction.
// - |vector_operand1| and |vector_operand2| must have compatible vector types
// that are supported by this transformation.
// - |pos| is an index of the operands of |instruction_id| in the
// |vector_operand1| and |vector_operand2|. It must be less than the size
// of those vector operands.
// - A vector type with the same width as the types of the vector operands,
// and element type matching the type of |instruction_id|, must exist in the
// module.
bool IsApplicable(
opt::IRContext* ir_context,
const TransformationContext& transformation_context) const override;
// Adds a new instruction before the |instruction_id| with |fresh_id|
// result id and |instruction_id|'s opcode. The added instruction has
// two operands: |vector_operand1| and |vector_operand2| and its type
// id is equal to the type ids of those operands. A new fact is added
// to the fact manager specifying that |fresh_id[pos]| is synonymous
// to |instruction_id|.
void Apply(opt::IRContext* ir_context,
TransformationContext* transformation_context) const override;
std::unordered_set<uint32_t> GetFreshIds() const override;
protobufs::Transformation ToMessage() const override;
// Checks whether the instruction given is supported by the transformation.
// A valid instruction must:
// - has both result id and type id.
// - is a supported scalar operation instruction.
// - has a supported type that is either int or float.
static bool IsInstructionSupported(opt::IRContext* ir_context,
const opt::Instruction& instruction);
private:
protobufs::TransformationWrapVectorSynonym message_;
};
} // namespace fuzz
} // namespace spvtools
#endif // SOURCE_FUZZ_TRANSFORMATION_WRAP_VECTOR_SYNONYM_H_
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