return []string{"-m32"}
	case "arm":
		return []string{"-marm"} // not thumb
	case "s390":
		return []string{"-m31"}
	case "s390x":
		return []string{"-m64"}
	case "mips64", "mips64le":
		if gomips64 == "hardfloat" {
			return []string{"-mabi=64", "-mhard-float"}
		} else if gomips64 == "softfloat" {
			return []string{"-mabi=64", "-msoft-float"}
		}
	case "mips", "mipsle":

	MRS	ID_PFR1_EL1, R12                   // 2c0138d5
	MRS	ISR_EL1, R24                       // 18c138d5
	MRS	MAIR_EL1, R20                      // 14a238d5
	MSR	R21, MAIR_EL1                      // 15a218d5
	MRS	MAIR_EL1, R20                      // 14a238d5
	MSR	R5, MAIR_EL1                       // 05a218d5
	MRS	MDCCINT_EL1, R23                   // 170230d5
	MSR	R27, MDCCINT_EL1                   // 1b0210d5