1733   inline void emit_rex_64(XMMRegister reg, Register rm_reg);
1734   inline void emit_rex_64(Register reg, XMMRegister rm_reg);
1735   inline void emit_rex_64(Register reg, Register rm_reg);
1749   inline void emit_rex_64(Register rm_reg);
1763   inline void emit_rex_32(Register reg, Register rm_reg);
1772   inline void emit_rex_32(Register rm_reg);
1780   inline void emit_optional_rex_32(Register reg, Register rm_reg);
1806   inline void emit_optional_rex_32(Register rm_reg);
1807   inline void emit_optional_rex_32(XMMRegister rm_reg);
1878   void emit_modrm(Register reg, Register rm_reg) {  in emit_modrm()  argument
1879     emit(0xC0 | reg.low_bits() << 3 | rm_reg.low_bits());  in emit_modrm()
1884   void emit_modrm(int code, Register rm_reg) {  in emit_modrm()  argument
1886     emit(0xC0 | code << 3 | rm_reg.low_bits());  in emit_modrm()
1903   void arithmetic_op_8(byte opcode, Register reg, Register rm_reg);
1904   void arithmetic_op_8(byte opcode, Register reg, const Operand& rm_reg);
1905   void arithmetic_op_16(byte opcode, Register reg, Register rm_reg);
1906   void arithmetic_op_16(byte opcode, Register reg, const Operand& rm_reg);
1908   void arithmetic_op(byte opcode, Register reg, Register rm_reg, int size);
1911                      const Operand& rm_reg,