mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-26 21:30:07 +00:00
83228137e1
Re-formatted the source tree with the command:
$ /usr/bin/clang-format -style=file -i \
$(find include source tools test utils -name '*.cpp' -or -name '*.h')
This required a fix to source/val/decoration.h. It was not including
spirv.h, which broke builds when the #include headers were re-ordered by
clang-format.
84 lines
2.9 KiB
C++
84 lines
2.9 KiB
C++
// Copyright (c) 2017 The Khronos Group Inc.
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// Copyright (c) 2017 Valve Corporation
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// Copyright (c) 2017 LunarG Inc.
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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 LIBSPIRV_OPT_INSERT_EXTRACT_ELIM_PASS_H_
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#define LIBSPIRV_OPT_INSERT_EXTRACT_ELIM_PASS_H_
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#include <algorithm>
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#include <map>
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#include <unordered_map>
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#include <unordered_set>
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#include <utility>
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#include "basic_block.h"
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#include "def_use_manager.h"
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#include "ir_context.h"
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#include "module.h"
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#include "pass.h"
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namespace spvtools {
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namespace opt {
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// See optimizer.hpp for documentation.
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class InsertExtractElimPass : public Pass {
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public:
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InsertExtractElimPass();
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const char* name() const override { return "eliminate-insert-extract"; }
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Status Process(ir::IRContext*) override;
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private:
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// Return true if indices of extract |extInst| starting at |extOffset|
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// match indices of insert |insInst|.
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bool ExtInsMatch(const ir::Instruction* extInst,
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const ir::Instruction* insInst,
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const uint32_t extOffset) const;
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// Return true if indices of extract |extInst| starting at |extOffset| and
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// indices of insert |insInst| conflict, specifically, if the insert
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// changes bits specified by the extract, but changes either more bits
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// or less bits than the extract specifies, meaning the exact value being
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// inserted cannot be used to replace the extract.
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bool ExtInsConflict(const ir::Instruction* extInst,
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const ir::Instruction* insInst,
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const uint32_t extOffset) const;
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// Return true if |typeId| is a vector type
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bool IsVectorType(uint32_t typeId);
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// Look for OpExtract on sequence of OpInserts in |func|. If there is a
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// reaching insert which corresponds to the indices of the extract, replace
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// the extract with the value that is inserted. Also resolve extracts from
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// CompositeConstruct or ConstantComposite.
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bool EliminateInsertExtract(ir::Function* func);
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// Initialize extensions whitelist
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void InitExtensions();
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// Return true if all extensions in this module are allowed by this pass.
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bool AllExtensionsSupported() const;
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void Initialize(ir::IRContext* c);
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Pass::Status ProcessImpl();
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// Extensions supported by this pass.
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std::unordered_set<std::string> extensions_whitelist_;
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};
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} // namespace opt
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} // namespace spvtools
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#endif // LIBSPIRV_OPT_INSERT_EXTRACT_ELIM_PASS_H_
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