mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-10-19 03:20:14 +00:00
9b14dd0cb4
- now includes a table of all descriptors with coding scheme (improves performance by 5% by allowing to avoid creation of move-to-front sequences which will never be used) - increased the size of markv_autogen.inc, clang doesn't seem to have the long compilation time problem now (probably was inadvertently fixed by using Huffman codec serialization)
61 lines
2.1 KiB
C++
61 lines
2.1 KiB
C++
// Copyright (c) 2017 Google 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_COMP_MARKV_AUTOGEN_H_
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#define LIBSPIRV_COMP_MARKV_AUTOGEN_H_
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#include <map>
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#include <memory>
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#include <numeric>
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#include <unordered_set>
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#include "util/huffman_codec.h"
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inline uint64_t GetMarkvNonOfTheAbove() {
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// Magic number.
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return 1111111111111111111;
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}
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// Returns of histogram of CombineOpcodeAndNumOperands(opcode, num_operands).
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std::map<uint64_t, uint32_t> GetOpcodeAndNumOperandsHist();
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// Returns Huffman codecs based on a Markov chain of histograms of
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// CombineOpcodeAndNumOperands(opcode, num_operands).
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// Map prev_opcode -> codec.
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std::map<uint32_t, std::unique_ptr<spvutils::HuffmanCodec<uint64_t>>>
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GetOpcodeAndNumOperandsMarkovHuffmanCodecs();
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// Returns Huffman codecs for literal strings.
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// Map opcode -> codec.
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std::map<uint32_t, std::unique_ptr<spvutils::HuffmanCodec<std::string>>>
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GetLiteralStringHuffmanCodecs();
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// Returns Huffman codecs for single-word non-id operand slots.
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// Map <opcode, operand_index> -> codec.
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std::map<std::pair<uint32_t, uint32_t>,
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std::unique_ptr<spvutils::HuffmanCodec<uint64_t>>>
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GetNonIdWordHuffmanCodecs();
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// Returns Huffman codecs for id descriptors used by common operand slots.
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// Map <opcode, operand_index> -> codec.
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std::map<std::pair<uint32_t, uint32_t>,
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std::unique_ptr<spvutils::HuffmanCodec<uint64_t>>>
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GetIdDescriptorHuffmanCodecs();
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// Returns a set of all descriptors which are encodable by at least one codec
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// returned by GetIdDescriptorHuffmanCodecs().
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std::unordered_set<uint32_t> GetDescriptorsWithCodingScheme();
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#endif // LIBSPIRV_COMP_MARKV_AUTOGEN_H_
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