auxFloat32                // auxInt is a float32 (encoded with math.Float64bits)
	auxFloat64                // auxInt is a float64 (encoded with math.Float64bits)
	auxFlagConstant           // auxInt is a flagConstant
	auxCCop                   // auxInt is a ssa.Op that represents a flags-to-bool conversion (e.g. LessThan)
	auxNameOffsetInt8         // aux is a &struct{Name ir.Name, Offset int64}; auxInt is index in parameter registers array

	case auxCCop:
		return fmt.Sprintf(" [%s]", Op(v.AuxInt))
	case auxS390XCCMask, auxS390XRotateParams:
		return fmt.Sprintf(" {%v}", v.Aux)
	case auxFlagConstant:
		return fmt.Sprintf("[%s]", flagConstant(v.AuxInt))
	case auxNone:
		return ""
	default:
		// If you see this, add a case above instead.
		return fmt.Sprintf("[auxtype=%d AuxInt=%d Aux=%v]", opcodeTable[v.Op].auxType, v.AuxInt, v.Aux)
	}
}