31 std::ostream& operator<<(std::ostream& os, const GpuRegister& rhs) {  in operator <<()  argument
32   if (rhs >= ZERO && rhs < kNumberOfGpuRegisters) {  in operator <<()
33     os << kRegisterNames[rhs];  in operator <<()
35     os << "GpuRegister[" << static_cast<int>(rhs) << "]";  in operator <<()
40 std::ostream& operator<<(std::ostream& os, const FpuRegister& rhs) {  in operator <<()  argument
41   if (rhs >= F0 && rhs < kNumberOfFpuRegisters) {  in operator <<()
42     os << "f" << static_cast<int>(rhs);  in operator <<()
44     os << "FpuRegister[" << static_cast<int>(rhs) << "]";  in operator <<()
49 std::ostream& operator<<(std::ostream& os, const VectorRegister& rhs) {  in operator <<()  argument
50   if (rhs >= W0 && rhs < kNumberOfVectorRegisters) {  in operator <<()
51     os << "w" << static_cast<int>(rhs);  in operator <<()
53     os << "VectorRegister[" << static_cast<int>(rhs) << "]";  in operator <<()