chromium/third_party/spirv-tools/src/source/binary.cpp

// Copyright (c) 2015-2020 The Khronos Group Inc.
// Modifications Copyright (C) 2020 Advanced Micro Devices, Inc. All rights
// reserved.
//
// 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.

#include "source/binary.h"

#include <algorithm>
#include <cassert>
#include <cstring>
#include <iterator>
#include <limits>
#include <string>
#include <unordered_map>
#include <vector>

#include "source/assembly_grammar.h"
#include "source/diagnostic.h"
#include "source/ext_inst.h"
#include "source/latest_version_spirv_header.h"
#include "source/opcode.h"
#include "source/operand.h"
#include "source/spirv_constant.h"
#include "source/spirv_endian.h"
#include "source/util/string_utils.h"

spv_result_t spvBinaryHeaderGet(const spv_const_binary binary,
                                const spv_endianness_t endian,
                                spv_header_t* pHeader) { … }

std::string spvDecodeLiteralStringOperand(const spv_parsed_instruction_t& inst,
                                          const uint16_t operand_index) { … }

namespace {

// A SPIR-V binary parser.  A parser instance communicates detailed parse
// results via callbacks.
class Parser { … };

spv_result_t Parser::parse(const uint32_t* words, size_t num_words,
                           spv_diagnostic* diagnostic_arg) { … }

spv_result_t Parser::parseModule() { … }

spv_result_t Parser::parseInstruction() { … }

spv_result_t Parser::parseOperand(size_t inst_offset,
                                  spv_parsed_instruction_t* inst,
                                  const spv_operand_type_t type,
                                  std::vector<uint32_t>* words,
                                  std::vector<spv_parsed_operand_t>* operands,
                                  spv_operand_pattern_t* expected_operands) { … }

spv_result_t Parser::setNumericTypeInfoForType(
    spv_parsed_operand_t* parsed_operand, uint32_t type_id) { … }

void Parser::recordNumberType(size_t inst_offset,
                              const spv_parsed_instruction_t* inst) { … }

}  // anonymous namespace

spv_result_t spvBinaryParse(const spv_const_context context, void* user_data,
                            const uint32_t* code, const size_t num_words,
                            spv_parsed_header_fn_t parsed_header,
                            spv_parsed_instruction_fn_t parsed_instruction,
                            spv_diagnostic* diagnostic) { … }

// TODO(dneto): This probably belongs in text.cpp since that's the only place
// that a spv_binary_t value is created.
void spvBinaryDestroy(spv_binary binary) { … }

size_t spv_strnlen_s(const char* str, size_t strsz) { … }