1 // Copyright 2020 The Tint Authors. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef SRC_WRITER_SPIRV_INSTRUCTION_H_ 16 #define SRC_WRITER_SPIRV_INSTRUCTION_H_ 17 18 #include <vector> 19 20 #include "spirv/unified1/spirv.hpp11" 21 #include "src/writer/spirv/operand.h" 22 23 namespace tint { 24 namespace writer { 25 namespace spirv { 26 27 /// A single SPIR-V instruction 28 class Instruction { 29 public: 30 /// Constructor 31 /// @param op the op to generate 32 /// @param operands the operand values for the instruction 33 Instruction(spv::Op op, OperandList operands); 34 /// Copy Constructor 35 Instruction(const Instruction&); 36 ~Instruction(); 37 38 /// @returns the instructions op opcode()39 spv::Op opcode() const { return op_; } 40 41 /// @returns the instructions operands operands()42 const OperandList& operands() const { return operands_; } 43 44 /// @returns the number of uint32_t's needed to hold the instruction 45 uint32_t word_length() const; 46 47 private: 48 spv::Op op_ = spv::Op::OpNop; 49 OperandList operands_; 50 }; 51 52 /// A list of instructions 53 using InstructionList = std::vector<Instruction>; 54 55 } // namespace spirv 56 } // namespace writer 57 } // namespace tint 58 59 #endif // SRC_WRITER_SPIRV_INSTRUCTION_H_ 60