43 pi_hi =  3.14160156e+00F,	/* 0x40491000 */
44 pi_lo = -8.90890988e-06F;	/* 0xb715777a */
46 volatile static const float vzero = 0;
55 	ix = hx & 0x7fffffff;  in sinpif()
58 	if (ix < 0x3f800000) {			/* |x| < 1 */  in sinpif()
59 		if (ix < 0x3e800000) {		/* |x| < 0.25 */  in sinpif()
60 	 		if (ix < 0x38800000) {	/* |x| < 0x1p-14 */  in sinpif()
61 				if (x == 0)  in sinpif()
63 				SET_FLOAT_WORD(hi, hx & 0xffff0000);  in sinpif()
64 				hi *= 0x1p23F;  in sinpif()
65 				lo = x * 0x1p23F - hi;  in sinpif()
68 				return (s * 0x1p-23F);  in sinpif()
72 			return ((hx & 0x80000000) ? -s : s);  in sinpif()
75 		if (ix < 0x3f000000)		/* |x| < 0.5 */  in sinpif()
77 		else if (ix < 0x3f400000)	/* |x| < 0.75 */  in sinpif()
81 		return ((hx & 0x80000000) ? -s : s);  in sinpif()
84 	if (ix < 0x4b000000) {		/* 1 <= |x| < 0x1p23 */  in sinpif()
89 		if (ix == 0)  in sinpif()
90 			s = 0;  in sinpif()
92 			if (ix < 0x3f000000) {		/* |x| < 0.5 */  in sinpif()
93 				if (ix < 0x3e800000)	/* |x| < 0.25 */  in sinpif()
98 				if (ix < 0x3f400000)	/* |x| < 0.75 */  in sinpif()
107 		return ((hx & 0x80000000) ? -s : s);  in sinpif()
111 	if (ix >= 0x7f800000)  in sinpif()
115 	 * |x| >= 0x1p23 is always an integer, so return +-0.  in sinpif()
117 	return (copysignf(0, x));  in sinpif()