82 строки
3.4 KiB
C++
82 строки
3.4 KiB
C++
// Copyright (c) 2019 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_SET_MEMORY_OPERANDS_MASK_H_
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#define SOURCE_FUZZ_TRANSFORMATION_SET_MEMORY_OPERANDS_MASK_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 TransformationSetMemoryOperandsMask : public Transformation {
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public:
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explicit TransformationSetMemoryOperandsMask(
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protobufs::TransformationSetMemoryOperandsMask message);
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TransformationSetMemoryOperandsMask(
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const protobufs::InstructionDescriptor& memory_access_instruction,
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uint32_t memory_operands_mask, uint32_t memory_operands_mask_index);
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// - |message_.memory_access_instruction| must describe a memory access
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// instruction.
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// - |message_.memory_operands_mask_index| must be suitable for this memory
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// access instruction, e.g. it must be 0 in the case of OpLoad, and may be
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// 1 in the case of OpCopyMemory if the SPIR-V version is 1.4 or higher.
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// - |message_.memory_operands_mask| must be identical to the original memory
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// operands mask, except that Volatile may be added, and Nontemporal may be
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// toggled.
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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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// Replaces the operands mask identified by
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// |message_.memory_operands_mask_index| in the instruction described by
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// |message_.memory_access_instruction| with |message_.memory_operands_mask|,
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// creating an input operand for the mask if no such operand was present.
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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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// Helper function that determines whether |instruction| is a memory
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// instruction (e.g. OpLoad).
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static bool IsMemoryAccess(const opt::Instruction& instruction);
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// Does the version of SPIR-V being used support multiple memory operand
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// masks on relevant memory access instructions?
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static bool MultipleMemoryOperandMasksAreSupported(
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opt::IRContext* ir_context);
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// Helper function to get the input operand index associated with mask number
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// |mask_index|. This is a bit tricky if there are multiple masks, because the
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// index associated with the second mask depends on whether the first mask
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// includes any flags such as Aligned that have corresponding operands.
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static uint32_t GetInOperandIndexForMask(const opt::Instruction& instruction,
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uint32_t mask_index);
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private:
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protobufs::TransformationSetMemoryOperandsMask 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_SET_MEMORY_OPERANDS_MASK_H_
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