mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-12-24 16:51:06 +00:00
1b6fd37fa6
This change refactors the 'split blocks' transformation so that an instruction is identified via a base, opcode, and number of those opcodes to be skipped when searching from the base, as opposed to the previous design which used a base and offset.
63 lines
2.3 KiB
C++
63 lines
2.3 KiB
C++
// Copyright (c) 2019 Google LLC
|
|
//
|
|
// 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_SPLIT_BLOCK_H_
|
|
#define SOURCE_FUZZ_TRANSFORMATION_SPLIT_BLOCK_H_
|
|
|
|
#include "source/fuzz/fact_manager.h"
|
|
#include "source/fuzz/protobufs/spirvfuzz_protobufs.h"
|
|
#include "source/fuzz/transformation.h"
|
|
#include "source/opt/ir_context.h"
|
|
|
|
namespace spvtools {
|
|
namespace fuzz {
|
|
|
|
class TransformationSplitBlock : public Transformation {
|
|
public:
|
|
explicit TransformationSplitBlock(
|
|
const protobufs::TransformationSplitBlock& message);
|
|
|
|
TransformationSplitBlock(
|
|
const protobufs::InstructionDescriptor& instruction_to_split_before,
|
|
uint32_t fresh_id);
|
|
|
|
// - |message_.base_instruction_id| must be the result id of an instruction
|
|
// 'base' in some block 'blk'.
|
|
// - 'blk' must contain an instruction 'inst' located |message_.offset|
|
|
// instructions after 'base' (if |message_.offset| = 0 then 'inst' =
|
|
// 'base').
|
|
// - Splitting 'blk' at 'inst', so that all instructions from 'inst' onwards
|
|
// appear in a new block that 'blk' directly jumps to must be valid.
|
|
// - |message_.fresh_id| must not be used by the module.
|
|
bool IsApplicable(opt::IRContext* context,
|
|
const FactManager& fact_manager) const override;
|
|
|
|
// - A new block with label |message_.fresh_id| is inserted right after 'blk'
|
|
// in program order.
|
|
// - All instructions of 'blk' from 'inst' onwards are moved into the new
|
|
// block.
|
|
// - 'blk' is made to jump unconditionally to the new block.
|
|
void Apply(opt::IRContext* context, FactManager* fact_manager) const override;
|
|
|
|
protobufs::Transformation ToMessage() const override;
|
|
|
|
private:
|
|
protobufs::TransformationSplitBlock message_;
|
|
};
|
|
|
|
} // namespace fuzz
|
|
} // namespace spvtools
|
|
|
|
#endif // SOURCE_FUZZ_TRANSFORMATION_SPLIT_BLOCK_H_
|