v_0 := v.Args[0]
	// match: (FSQRT (FMOVDconst [x]))
	// cond: x >= 0
	// result: (FMOVDconst [math.Sqrt(x)])
	for {
		if v_0.Op != OpPPC64FMOVDconst {
			break
		}
		x := auxIntToFloat64(v_0.AuxInt)
		if !(x >= 0) {
			break
		}
		v.reset(OpPPC64FMOVDconst)
		v.AuxInt = float64ToAuxInt(math.Sqrt(x))
		return true
	}
	return false
}
func rewriteValuePPC64_OpPPC64FSUB(v *Value) bool {

		return true
	case OpSignExt8to64:
		v.Op = OpS390XMOVBreg
		return true
	case OpSlicemask:
		return rewriteValueS390X_OpSlicemask(v)
	case OpSqrt:
		v.Op = OpS390XFSQRT
		return true
	case OpSqrt32:
		v.Op = OpS390XFSQRTS
		return true
	case OpStaticCall:
		v.Op = OpS390XCALLstatic
		return true
	case OpStore:
		return rewriteValueS390X_OpStore(v)
	case OpSub16:
		v.Op = OpS390XSUBW

		return true
	case OpSignmask:
		return rewriteValueARM_OpSignmask(v)
	case OpSlicemask:
		return rewriteValueARM_OpSlicemask(v)
	case OpSqrt:
		v.Op = OpARMSQRTD
		return true
	case OpSqrt32:
		v.Op = OpARMSQRTF
		return true
	case OpStaticCall:
		v.Op = OpARMCALLstatic
		return true
	case OpStore:
		return rewriteValueARM_OpStore(v)
	case OpSub16:
		v.Op = OpARMSUB
		return true