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https://github.com/KhronosGroup/SPIRV-Tools
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79 lines
3.1 KiB
C++
79 lines
3.1 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_ADD_COPY_MEMORY_H_
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#define SOURCE_FUZZ_TRANSFORMATION_ADD_COPY_MEMORY_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 TransformationAddCopyMemory : public Transformation {
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public:
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explicit TransformationAddCopyMemory(
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const protobufs::TransformationAddCopyMemory& message);
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TransformationAddCopyMemory(
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const protobufs::InstructionDescriptor& instruction_descriptor,
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uint32_t fresh_id, uint32_t source_id, SpvStorageClass storage_class,
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uint32_t initializer_id);
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// - |instruction_descriptor| must point to a valid instruction in the module.
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// - it should be possible to insert OpCopyMemory before
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// |instruction_descriptor| (i.e. the module remains valid after the
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// insertion).
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// - |source_id| must be a result id for some valid instruction in the module.
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// - |fresh_id| must be a fresh id to copy memory into.
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// - type of |source_id| must be OpTypePointer where pointee can be used with
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// OpCopyMemory.
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// - If the pointee type of |source_id| is a struct type, it must not have the
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// Block or BufferBlock decoration.
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// - |storage_class| must be either Private or Function.
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// - type ids of instructions with result ids |source_id| and |initialize_id|
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// must be the same.
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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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// A global or local variable with id |target_id| and |storage_class| class is
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// created. An 'OpCopyMemory %fresh_id %source_id' instruction is inserted
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// before the |instruction_descriptor|.
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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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// Returns true if we can copy memory from |instruction| using OpCopyMemory.
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static bool IsInstructionSupported(opt::IRContext* ir_context,
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opt::Instruction* inst);
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private:
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// Returns whether the type, pointed to by some OpTypePointer, can be used
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// with OpCopyMemory instruction.
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static bool CanUsePointeeWithCopyMemory(const opt::analysis::Type& type);
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protobufs::TransformationAddCopyMemory 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_ADD_COPY_MEMORY_H_
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