| // Copyright 2022 The Tint Authors. |
| // |
| // 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. |
| |
| #ifndef SRC_TINT_IR_INSTRUCTION_H_ |
| #define SRC_TINT_IR_INSTRUCTION_H_ |
| |
| #include <ostream> |
| |
| #include "src/tint/ir/value.h" |
| #include "src/tint/utils/vector.h" |
| |
| namespace tint::ir { |
| |
| /// An instruction in the IR. |
| class Instruction { |
| public: |
| /// The kind of instruction. |
| enum class Kind { |
| kAdd, |
| kSubtract, |
| kMultiply, |
| kDivide, |
| kModulo, |
| |
| kAnd, |
| kOr, |
| kXor, |
| |
| kLogicalAnd, |
| kLogicalOr, |
| |
| kEqual, |
| kNotEqual, |
| kLessThan, |
| kGreaterThan, |
| kLessThanEqual, |
| kGreaterThanEqual, |
| |
| kShiftLeft, |
| kShiftRight |
| }; |
| |
| /// Constructor |
| Instruction(); |
| /// Constructor |
| /// @param kind the kind of instruction |
| /// @param result the result value |
| /// @param lhs the lhs of the instruction |
| /// @param rhs the rhs of the instruction |
| Instruction(Kind kind, Value result, Value lhs, Value rhs); |
| /// Copy constructor |
| /// @param instr the instruction to copy from |
| Instruction(const Instruction& instr); |
| /// Move constructor |
| /// @param instr the instruction to move from |
| Instruction(Instruction&& instr); |
| /// Destructor |
| ~Instruction(); |
| |
| /// Copy assign |
| /// @param instr the instruction to copy from |
| /// @returns a reference to this |
| Instruction& operator=(const Instruction& instr); |
| /// Move assign |
| /// @param instr the instruction to move from |
| /// @returns a reference to this |
| Instruction& operator=(Instruction&& instr); |
| |
| /// @returns the kind of instruction |
| Kind GetKind() const { return kind_; } |
| |
| /// @returns the result value for the instruction |
| const Value& Result() const { return result_; } |
| |
| /// @returns true if the instruction has a LHS |
| bool HasLHS() const { return args_.Length() >= 1; } |
| /// @returns the left-hand-side value for the instruction |
| const Value& LHS() const { |
| TINT_ASSERT(IR, HasLHS()); |
| return args_[0]; |
| } |
| |
| /// @returns true if the instruction has a RHS |
| bool HasRHS() const { return args_.Length() >= 2; } |
| /// @returns the right-hand-side value for the instruction |
| const Value& RHS() const { |
| TINT_ASSERT(IR, HasRHS()); |
| return args_[1]; |
| } |
| |
| private: |
| Kind kind_; |
| |
| Value result_; |
| utils::Vector<Value, 2> args_; |
| }; |
| |
| std::ostream& operator<<(std::ostream& out, const Instruction&); |
| |
| } // namespace tint::ir |
| |
| #endif // SRC_TINT_IR_INSTRUCTION_H_ |