39 	switch (CLPAIR(xc, yc)) {  in ieee754dp_add()
40 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_SNAN):  in ieee754dp_add()
41 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_SNAN):  in ieee754dp_add()
42 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_SNAN):  in ieee754dp_add()
43 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_SNAN):  in ieee754dp_add()
44 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_SNAN):  in ieee754dp_add()
47 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_SNAN):  in ieee754dp_add()
48 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_QNAN):  in ieee754dp_add()
49 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_ZERO):  in ieee754dp_add()
50 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_NORM):  in ieee754dp_add()
51 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_DNORM):  in ieee754dp_add()
52 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):  in ieee754dp_add()
55 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):  in ieee754dp_add()
56 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):  in ieee754dp_add()
57 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):  in ieee754dp_add()
58 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):  in ieee754dp_add()
61 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):  in ieee754dp_add()
62 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):  in ieee754dp_add()
63 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):  in ieee754dp_add()
64 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):  in ieee754dp_add()
65 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_INF):  in ieee754dp_add()
72 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):  in ieee754dp_add()
78 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):  in ieee754dp_add()
79 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):  in ieee754dp_add()
80 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):  in ieee754dp_add()
83 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):  in ieee754dp_add()
84 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):  in ieee754dp_add()
85 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):  in ieee754dp_add()
91 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):  in ieee754dp_add()
97 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_ZERO):  in ieee754dp_add()
98 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):  in ieee754dp_add()
101 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):  in ieee754dp_add()
102 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_DNORM):  in ieee754dp_add()
105 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):  in ieee754dp_add()
109 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):  in ieee754dp_add()
113 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_NORM):  in ieee754dp_add()
117 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_NORM):  in ieee754dp_add()