27 	switch (CLPAIR(xc, yc)) {  in ieee754dp_add()
28 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_SNAN):  in ieee754dp_add()
29 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_SNAN):  in ieee754dp_add()
30 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_SNAN):  in ieee754dp_add()
31 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_SNAN):  in ieee754dp_add()
32 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_SNAN):  in ieee754dp_add()
35 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_SNAN):  in ieee754dp_add()
36 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_QNAN):  in ieee754dp_add()
37 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_ZERO):  in ieee754dp_add()
38 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_NORM):  in ieee754dp_add()
39 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_DNORM):  in ieee754dp_add()
40 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):  in ieee754dp_add()
43 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):  in ieee754dp_add()
44 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):  in ieee754dp_add()
45 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):  in ieee754dp_add()
46 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):  in ieee754dp_add()
49 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):  in ieee754dp_add()
50 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):  in ieee754dp_add()
51 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):  in ieee754dp_add()
52 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):  in ieee754dp_add()
53 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_INF):  in ieee754dp_add()
60 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):  in ieee754dp_add()
66 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):  in ieee754dp_add()
67 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):  in ieee754dp_add()
68 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):  in ieee754dp_add()
71 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):  in ieee754dp_add()
72 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):  in ieee754dp_add()
73 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):  in ieee754dp_add()
79 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):  in ieee754dp_add()
85 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_ZERO):  in ieee754dp_add()
86 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):  in ieee754dp_add()
89 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):  in ieee754dp_add()
90 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_DNORM):  in ieee754dp_add()
93 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):  in ieee754dp_add()
96 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):  in ieee754dp_add()
100 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_NORM):  in ieee754dp_add()
104 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_NORM):  in ieee754dp_add()