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1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_INTERPRETER_BYTECODES_H_ | 5 #ifndef V8_INTERPRETER_BYTECODES_H_ |
6 #define V8_INTERPRETER_BYTECODES_H_ | 6 #define V8_INTERPRETER_BYTECODES_H_ |
7 | 7 |
8 #include <iosfwd> | 8 #include <iosfwd> |
9 | 9 |
10 // Clients of this interface shouldn't depend on lots of interpreter internals. | 10 // Clients of this interface shouldn't depend on lots of interpreter internals. |
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637 // Returns true if a handler is generated for a bytecode at a given | 637 // Returns true if a handler is generated for a bytecode at a given |
638 // operand scale. All bytecodes have handlers at OperandScale::kSingle, | 638 // operand scale. All bytecodes have handlers at OperandScale::kSingle, |
639 // but only bytecodes with scalable operands have handlers with larger | 639 // but only bytecodes with scalable operands have handlers with larger |
640 // OperandScale values. | 640 // OperandScale values. |
641 static bool BytecodeHasHandler(Bytecode bytecode, OperandScale operand_scale); | 641 static bool BytecodeHasHandler(Bytecode bytecode, OperandScale operand_scale); |
642 | 642 |
643 // Return the operand size required to hold a signed operand. | 643 // Return the operand size required to hold a signed operand. |
644 static OperandSize SizeForSignedOperand(int value); | 644 static OperandSize SizeForSignedOperand(int value); |
645 | 645 |
646 // Return the operand size required to hold an unsigned operand. | 646 // Return the operand size required to hold an unsigned operand. |
647 static OperandSize SizeForUnsignedOperand(int value); | 647 static OperandSize SizeForUnsignedOperand(uint32_t value); |
648 | |
649 // Return the operand size required to hold an unsigned operand. | |
650 static OperandSize SizeForUnsignedOperand(size_t value); | |
651 | 648 |
652 // Return the OperandScale required for bytecode emission of | 649 // Return the OperandScale required for bytecode emission of |
653 // operand sizes. | 650 // operand sizes. |
654 static OperandScale OperandSizesToScale(OperandSize size0); | 651 static OperandScale OperandSizesToScale(OperandSize size0); |
655 static OperandScale OperandSizesToScale(OperandSize size0, OperandSize size1); | 652 static OperandScale OperandSizesToScale(OperandSize size0, OperandSize size1); |
656 static OperandScale OperandSizesToScale( | 653 static OperandScale OperandSizesToScale( |
657 OperandSize size0, OperandSize size1, OperandSize size2, | 654 OperandSize size0, OperandSize size1, OperandSize size2, |
658 OperandSize size3 = OperandSize::kByte); | 655 OperandSize size3 = OperandSize::kByte); |
659 | 656 |
660 private: | 657 private: |
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673 std::ostream& operator<<(std::ostream& os, const AccumulatorUse& use); | 670 std::ostream& operator<<(std::ostream& os, const AccumulatorUse& use); |
674 std::ostream& operator<<(std::ostream& os, const OperandScale& operand_scale); | 671 std::ostream& operator<<(std::ostream& os, const OperandScale& operand_scale); |
675 std::ostream& operator<<(std::ostream& os, const OperandSize& operand_size); | 672 std::ostream& operator<<(std::ostream& os, const OperandSize& operand_size); |
676 std::ostream& operator<<(std::ostream& os, const OperandType& operand_type); | 673 std::ostream& operator<<(std::ostream& os, const OperandType& operand_type); |
677 | 674 |
678 } // namespace interpreter | 675 } // namespace interpreter |
679 } // namespace internal | 676 } // namespace internal |
680 } // namespace v8 | 677 } // namespace v8 |
681 | 678 |
682 #endif // V8_INTERPRETER_BYTECODES_H_ | 679 #endif // V8_INTERPRETER_BYTECODES_H_ |
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