24 class Reg {
26   explicit Reg(int reg_num) : num_(reg_num) { }  in Reg()  function
38   static Reg ArmCore(int num) { return Reg(num); }  // R0-R15.  in ArmCore()
39   static Reg ArmFp(int num) { return Reg(64 + num); }  // S0–S31.  in ArmFp()
40   static Reg ArmDp(int num) { return Reg(256 + num); }  // D0–D31.  in ArmDp()
41   static Reg Arm64Core(int num) { return Reg(num); }  // X0-X31.  in Arm64Core()
42   static Reg Arm64Fp(int num) { return Reg(64 + num); }  // V0-V31.  in Arm64Fp()
43   static Reg X86Core(int num) { return Reg(num); }  in X86Core()
44   static Reg X86Fp(int num) { return Reg(21 + num); }  in X86Fp()
45   static Reg X86_64Core(int num) {  in X86_64Core()
47     return Reg(num < 8 ? map[num] : num);  in X86_64Core()
49   static Reg X86_64Fp(int num) { return Reg(17 + num); }  in X86_64Fp()