1// Copyright (c) 2016 Google Inc. 2// 3// Permission is hereby granted, free of charge, to any person obtaining a 4// copy of this software and/or associated documentation files (the 5// "Materials"), to deal in the Materials without restriction, including 6// without limitation the rights to use, copy, modify, merge, publish, 7// distribute, sublicense, and/or sell copies of the Materials, and to 8// permit persons to whom the Materials are furnished to do so, subject to 9// the following conditions: 10// 11// The above copyright notice and this permission notice shall be included 12// in all copies or substantial portions of the Materials. 13// 14// MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS 15// KHRONOS STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS 16// SPECIFICATIONS AND HEADER INFORMATION ARE LOCATED AT 17// https://www.khronos.org/registry/ 18// 19// THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 20// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 21// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 22// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 23// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 24// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 25// MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. 26 27#include "instruction.h" 28 29#include <cassert> 30 31#include "reflect.h" 32 33namespace spvtools { 34namespace ir { 35 36Instruction::Instruction(const spv_parsed_instruction_t& inst, 37 std::vector<Instruction>&& dbg_line) 38 : opcode_(static_cast<SpvOp>(inst.opcode)), 39 type_id_(inst.type_id), 40 result_id_(inst.result_id), 41 dbg_line_insts_(std::move(dbg_line)) { 42 assert((!IsDebugLineInst(opcode_) || dbg_line.empty()) && 43 "Op(No)Line attaching to Op(No)Line found"); 44 for (uint32_t i = 0; i < inst.num_operands; ++i) { 45 const auto& current_payload = inst.operands[i]; 46 std::vector<uint32_t> words( 47 inst.words + current_payload.offset, 48 inst.words + current_payload.offset + current_payload.num_words); 49 operands_.emplace_back(current_payload.type, std::move(words)); 50 } 51} 52 53uint32_t Instruction::GetSingleWordOperand(uint32_t index) const { 54 const auto& words = GetOperand(index).words; 55 assert(words.size() == 1 && "expected the operand only taking one word"); 56 return words.front(); 57} 58 59uint32_t Instruction::NumInOperandWords() const { 60 uint32_t size = 0; 61 for (uint32_t i = TypeResultIdCount(); i < operands_.size(); ++i) 62 size += static_cast<uint32_t>(operands_[i].words.size()); 63 return size; 64} 65 66void Instruction::ToBinary(std::vector<uint32_t>* binary, bool skip_nop) const { 67 for (const auto& dbg_line : dbg_line_insts_) { 68 dbg_line.ToBinary(binary, skip_nop); 69 } 70 71 if (skip_nop && IsNop()) return; 72 73 const uint32_t num_words = 1 + NumOperandWords(); 74 binary->push_back((num_words << 16) | static_cast<uint16_t>(opcode_)); 75 for (const auto& operand : operands_) 76 binary->insert(binary->end(), operand.words.begin(), operand.words.end()); 77} 78 79} // namespace ir 80} // namespace spvtools 81