39 	switch (CLPAIR(xc, yc)) {  in ieee754dp_sub()
40 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_SNAN):  in ieee754dp_sub()
41 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_SNAN):  in ieee754dp_sub()
42 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_SNAN):  in ieee754dp_sub()
43 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_SNAN):  in ieee754dp_sub()
44 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_SNAN):  in ieee754dp_sub()
47 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_SNAN):  in ieee754dp_sub()
48 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_QNAN):  in ieee754dp_sub()
49 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_ZERO):  in ieee754dp_sub()
50 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_NORM):  in ieee754dp_sub()
51 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_DNORM):  in ieee754dp_sub()
52 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):  in ieee754dp_sub()
55 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):  in ieee754dp_sub()
56 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):  in ieee754dp_sub()
57 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):  in ieee754dp_sub()
58 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):  in ieee754dp_sub()
61 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):  in ieee754dp_sub()
62 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):  in ieee754dp_sub()
63 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):  in ieee754dp_sub()
64 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):  in ieee754dp_sub()
65 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_INF):  in ieee754dp_sub()
72 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):  in ieee754dp_sub()
78 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):  in ieee754dp_sub()
79 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):  in ieee754dp_sub()
80 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):  in ieee754dp_sub()
83 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):  in ieee754dp_sub()
84 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):  in ieee754dp_sub()
85 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):  in ieee754dp_sub()
91 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):  in ieee754dp_sub()
97 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_ZERO):  in ieee754dp_sub()
98 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):  in ieee754dp_sub()
101 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):  in ieee754dp_sub()
102 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_DNORM):  in ieee754dp_sub()
107 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):  in ieee754dp_sub()
111 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):  in ieee754dp_sub()
116 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_NORM):  in ieee754dp_sub()
121 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_NORM):  in ieee754dp_sub()