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https://github.com/KhronosGroup/SPIRV-Tools
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bed84792f9
Adapts all transformation classes so that their protobuf message is passed by value and then moved into the message_ field.
79 lines
3.0 KiB
C++
79 lines
3.0 KiB
C++
// Copyright (c) 2020 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SOURCE_FUZZ_TRANSFORMATION_EQUATION_INSTRUCTION_H_
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#define SOURCE_FUZZ_TRANSFORMATION_EQUATION_INSTRUCTION_H_
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#include <vector>
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#include "source/fuzz/protobufs/spirvfuzz_protobufs.h"
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#include "source/fuzz/transformation.h"
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#include "source/fuzz/transformation_context.h"
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#include "source/opt/ir_context.h"
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namespace spvtools {
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namespace fuzz {
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class TransformationEquationInstruction : public Transformation {
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public:
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explicit TransformationEquationInstruction(
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protobufs::TransformationEquationInstruction message);
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TransformationEquationInstruction(
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uint32_t fresh_id, SpvOp opcode,
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const std::vector<uint32_t>& in_operand_id,
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const protobufs::InstructionDescriptor& instruction_to_insert_before);
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// - |message_.fresh_id| must be fresh.
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// - |message_.instruction_to_insert_before| must identify an instruction
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// before which an equation instruction can legitimately be inserted.
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// - Each id in |message_.in_operand_id| must exist, not be an OpUndef, and
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// be available before |message_.instruction_to_insert_before|.
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// - |message_.opcode| must be an opcode for which we know how to handle
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// equations, the types of the ids in |message_.in_operand_id| must be
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// suitable for use with this opcode, and the module must contain an
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// appropriate result type id.
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bool IsApplicable(
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opt::IRContext* ir_context,
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const TransformationContext& transformation_context) const override;
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// Adds an instruction to the module, right before
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// |message_.instruction_to_insert_before|, of the form:
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//
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// |message_.fresh_id| = |message_.opcode| %type |message_.in_operand_ids|
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//
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// where %type is a type id that already exists in the module and that is
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// compatible with the opcode and input operands.
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//
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// The fact manager is also updated to inform it of this equation fact.
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void Apply(opt::IRContext* ir_context,
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TransformationContext* transformation_context) const override;
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std::unordered_set<uint32_t> GetFreshIds() const override;
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protobufs::Transformation ToMessage() const override;
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private:
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// Returns type id for the equation instruction. Returns 0 if result type does
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// not exist.
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uint32_t MaybeGetResultTypeId(opt::IRContext* ir_context) const;
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protobufs::TransformationEquationInstruction message_;
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};
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} // namespace fuzz
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} // namespace spvtools
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#endif // SOURCE_FUZZ_TRANSFORMATION_EQUATION_INSTRUCTION_H_
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