mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-30 15:00:06 +00:00
71 lines
2.3 KiB
C++
71 lines
2.3 KiB
C++
// Copyright (c) 2017 The Khronos Group Inc.
|
|
// Copyright (c) 2017 Valve Corporation
|
|
// Copyright (c) 2017 LunarG Inc.
|
|
//
|
|
// 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 LIBSPIRV_OPT_INSERT_EXTRACT_ELIM_PASS_H_
|
|
#define LIBSPIRV_OPT_INSERT_EXTRACT_ELIM_PASS_H_
|
|
|
|
#include <algorithm>
|
|
#include <map>
|
|
#include <unordered_map>
|
|
#include <unordered_set>
|
|
#include <utility>
|
|
|
|
#include "basic_block.h"
|
|
#include "def_use_manager.h"
|
|
#include "ir_context.h"
|
|
#include "mem_pass.h"
|
|
#include "module.h"
|
|
|
|
namespace spvtools {
|
|
namespace opt {
|
|
|
|
// See optimizer.hpp for documentation.
|
|
class InsertExtractElimPass : public MemPass {
|
|
public:
|
|
InsertExtractElimPass();
|
|
const char* name() const override { return "eliminate-insert-extract"; }
|
|
Status Process(ir::IRContext*) override;
|
|
|
|
private:
|
|
// Return id of component of |cinst| specified by |extIndices| starting with
|
|
// index at |extOffset|. Return 0 if indices cannot be matched exactly.
|
|
uint32_t DoExtract(ir::Instruction* cinst, std::vector<uint32_t>* extIndices,
|
|
uint32_t extOffset);
|
|
|
|
// Look for OpExtract on sequence of OpInserts in |func|. If there is a
|
|
// reaching insert which corresponds to the indices of the extract, replace
|
|
// the extract with the value that is inserted. Also resolve extracts from
|
|
// CompositeConstruct or ConstantComposite.
|
|
bool EliminateInsertExtract(ir::Function* func);
|
|
|
|
// Initialize extensions whitelist
|
|
void InitExtensions();
|
|
|
|
// Return true if all extensions in this module are allowed by this pass.
|
|
bool AllExtensionsSupported() const;
|
|
|
|
void Initialize(ir::IRContext* c);
|
|
Pass::Status ProcessImpl();
|
|
|
|
// Extensions supported by this pass.
|
|
std::unordered_set<std::string> extensions_whitelist_;
|
|
};
|
|
|
|
} // namespace opt
|
|
} // namespace spvtools
|
|
|
|
#endif // LIBSPIRV_OPT_INSERT_EXTRACT_ELIM_PASS_H_
|