}

func and_mask_3(a, b uint32) (uint32, uint32) {
	// arm/7:`BIC`,-`AND`
	a &= 0xffffaaaa
	// arm/7:`BFC`,-`AND`,-`BIC`
	b &= 0xffc003ff
	return a, b
}

// Check generation of arm64 BIC/EON/ORN instructions

func op_bic(x, y uint32) uint32 {
	// arm64:`BIC\t`,-`AND`
	return x &^ y
}

func op_eon(x, y, z uint32, a []uint32, n, m uint64) uint64 {
	// arm64:`EON\t`,-`EOR`,-`MVN`

// Catch bounded shifts in situations like foo<<uint(shift&63) which might not be caught by the prove pass.
(CMP(U|WU)const [d] (ANDconst z [c])) && uint64(d) > uint64(c) => (FlagLT)

(ORN x (MOVDconst [-1])) => x

(S(RAD|RD|LD) x (MOVDconst [c])) => (S(RAD|RD|LD)const [c&63 | (c>>6&1*63)] x)
(S(RAW|RW|LW) x (MOVDconst [c])) => (S(RAW|RW|LW)const [c&31 | (c>>5&1*31)] x)

func rewriteValuePPC64_OpPPC64ORN(v *Value) bool {
	v_1 := v.Args[1]
	v_0 := v.Args[0]
	// match: (ORN x (MOVDconst [-1]))
	// result: x
	for {
		x := v_0
		if v_1.Op != OpPPC64MOVDconst || auxIntToInt64(v_1.AuxInt) != -1 {
			break
		}
		v.copyOf(x)
		return true
	}
	// match: (ORN (MOVDconst [c]) (MOVDconst [d]))
	// result: (MOVDconst [c|^d])
	for {