mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-25 13:00:04 +00:00
bed84792f9
Adapts all transformation classes so that their protobuf message is passed by value and then moved into the message_ field.
108 lines
4.7 KiB
C++
108 lines
4.7 KiB
C++
// Copyright (c) 2020 Vasyl Teliman
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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_MOVE_INSTRUCTION_DOWN_H_
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#define SOURCE_FUZZ_TRANSFORMATION_MOVE_INSTRUCTION_DOWN_H_
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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 TransformationMoveInstructionDown : public Transformation {
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public:
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explicit TransformationMoveInstructionDown(
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protobufs::TransformationMoveInstructionDown message);
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explicit TransformationMoveInstructionDown(
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const protobufs::InstructionDescriptor& instruction);
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// - |instruction| should be a descriptor of a valid instruction in the module
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// - |instruction|'s opcode should be supported by this transformation
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// - neither |instruction| nor its successor may be the last instruction in
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// the block
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// - |instruction|'s successor may not be dependent on the |instruction|
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// - it should be possible to insert |instruction|'s opcode after its
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// successor
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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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// Swaps |instruction| with its successor.
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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 true if the |inst| is supported by this transformation.
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static bool IsInstructionSupported(opt::IRContext* ir_context,
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const opt::Instruction& inst);
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// Returns true if |inst| represents a "simple" instruction. That is, it
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// neither reads from nor writes to the memory and is not a barrier.
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static bool IsSimpleInstruction(opt::IRContext* ir_context,
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const opt::Instruction& inst);
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// Returns true if |inst| reads from memory.
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static bool IsMemoryReadInstruction(opt::IRContext* ir_context,
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const opt::Instruction& inst);
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// Returns id being used by |inst| to read from. |inst| must be a memory read
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// instruction (see IsMemoryReadInstruction). Returned id is not guaranteed to
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// have pointer type.
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static uint32_t GetMemoryReadTarget(opt::IRContext* ir_context,
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const opt::Instruction& inst);
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// Returns true if |inst| that writes to the memory.
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static bool IsMemoryWriteInstruction(opt::IRContext* ir_context,
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const opt::Instruction& inst);
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// Returns id being used by |inst| to write into. |inst| must be a memory
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// write instruction (see IsMemoryWriteInstruction). Returned id is not
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// guaranteed to have pointer type.
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static uint32_t GetMemoryWriteTarget(opt::IRContext* ir_context,
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const opt::Instruction& inst);
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// Returns true if |inst| either reads from or writes to the memory
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// (see IsMemoryReadInstruction and IsMemoryWriteInstruction accordingly).
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static bool IsMemoryInstruction(opt::IRContext* ir_context,
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const opt::Instruction& inst);
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// Returns true if |inst| is a barrier instruction.
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static bool IsBarrierInstruction(const opt::Instruction& inst);
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// Returns true if it is possible to swap |a| and |b| without changing the
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// module's semantics. |a| and |b| are required to be supported instructions
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// (see IsInstructionSupported). In particular, if either |a| or |b| are
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// memory or barrier instructions, some checks are used to only say that they
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// can be swapped if the swap is definitely semantics-preserving.
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static bool CanSafelySwapInstructions(opt::IRContext* ir_context,
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const opt::Instruction& a,
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const opt::Instruction& b,
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const FactManager& fact_manager);
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protobufs::TransformationMoveInstructionDown 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_MOVE_INSTRUCTION_DOWN_H_
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