}
func rewriteValueS390X_OpS390XFNEG(v *Value) bool {
	v_0 := v.Args[0]
	// match: (FNEG (LPDFR x))
	// result: (LNDFR x)
	for {
		if v_0.Op != OpS390XLPDFR {
			break
		}
		x := v_0.Args[0]
		v.reset(OpS390XLNDFR)
		v.AddArg(x)
		return true
	}
	// match: (FNEG (LNDFR x))
	// result: (LPDFR x)
	for {
		if v_0.Op != OpS390XLNDFR {
			break
		}
		x := v_0.Args[0]