22  * Domain [-0.67434, 0.67434], range ~[-3.37e-36, 1.982e-37]
23  * |tan(x)/x - t(x)| < 2**-117.8 (XXX should be ~1e-37)
28 T3 = 0x1.5555555555555555555555555553p-2L,
29 T5 = 0x1.1111111111111111111111111eb5p-3L,
30 T7 = 0x1.ba1ba1ba1ba1ba1ba1ba1b694cd6p-5L,
31 T9 = 0x1.664f4882c10f9f32d6bbe09d8bcdp-6L,
32 T11 = 0x1.226e355e6c23c8f5b4f5762322eep-7L,
33 T13 = 0x1.d6d3d0e157ddfb5fed8e84e27b37p-9L,
34 T15 = 0x1.7da36452b75e2b5fce9ee7c2c92ep-10L,
35 T17 = 0x1.355824803674477dfcf726649efep-11L,
36 T19 = 0x1.f57d7734d1656e0aceb716f614c2p-13L,
37 T21 = 0x1.967e18afcb180ed942dfdc518d6cp-14L,
38 T23 = 0x1.497d8eea21e95bc7e2aa79b9f2cdp-15L,
39 T25 = 0x1.0b132d39f055c81be49eff7afd50p-16L,
40 T27 = 0x1.b0f72d33eff7bfa2fbc1059d90b6p-18L,
41 T29 = 0x1.5ef2daf21d1113df38d0fbc00267p-19L,
42 T31 = 0x1.1c77d6eac0234988cdaa04c96626p-20L,
43 T33 = 0x1.cd2a5a292b180e0bdd701057dfe3p-22L,
44 T35 = 0x1.75c7357d0298c01a31d0a6f7d518p-23L,
45 T37 = 0x1.2f3190f4718a9a520f98f50081fcp-24L,
46 pio4 = 0x1.921fb54442d18469898cc51701b8p-1L,
47 pio4lo = 0x1.cd129024e088a67cc74020bbea60p-116L;
50 T39 =  0.000000028443389121318352,	/*  0x1e8a7592977938.0p-78 */
51 T41 =  0.000000011981013102001973,	/*  0x19baa1b1223219.0p-79 */
52 T43 =  0.0000000038303578044958070,	/*  0x107385dfb24529.0p-80 */
53 T45 =  0.0000000034664378216909893,	/*  0x1dc6c702a05262.0p-81 */
54 T47 = -0.0000000015090641701997785,	/* -0x19ecef3569ebb6.0p-82 */
55 T49 =  0.0000000029449552300483952,	/*  0x194c0668da786a.0p-81 */
56 T51 = -0.0000000022006995706097711,	/* -0x12e763b8845268.0p-81 */
57 T53 =  0.0000000015468200913196612,	/*  0x1a92fc98c29554.0p-82 */
58 T55 = -0.00000000061311613386849674,	/* -0x151106cbc779a9.0p-83 */
59 T57 =  1.4912469681508012e-10;		/*  0x147edbdba6f43a.0p-85 */
63 	long double z, r, v, w, s;  in __kernel_tanl()  local
67 	iy = (iy == 1 ? -1 : 1);	/* XXX recover original interface */  in __kernel_tanl()
68 	osign = (x >= 0 ? 1.0L : -1.0L);	/* XXX slow, probably wrong for -0 */  in __kernel_tanl()
71 			x = -x;  in __kernel_tanl()
72 			y = -y;  in __kernel_tanl()
74 		z = pio4 - x;  in __kernel_tanl()
75 		w = pio4lo - y;  in __kernel_tanl()
87 	v = z * (T7 + w * (T11 + w * (T15 + w * (T19 + w * (T23 +  in __kernel_tanl()
91 	r = y + z * (s * (r + v) + y);  in __kernel_tanl()
95 		v = (long double) iy;  in __kernel_tanl()
97 			(v - 2.0L * (x - (w * w / (w + v) - r)));  in __kernel_tanl()
104 		 * -1.0 / (x+r) here  in __kernel_tanl()
106 		/* compute -1.0 / (x+r) accurately */  in __kernel_tanl()
109 		z = z + 0x1p32L - 0x1p32L;  in __kernel_tanl()
110 		v = r - (z - x);	/* z+v = r+x */  in __kernel_tanl()
111 		t = a = -1.0L / w;	/* a = -1.0/w */  in __kernel_tanl()
112 		t = t + 0x1p32L - 0x1p32L;  in __kernel_tanl()
114 		return t + a * (s + t * v);  in __kernel_tanl()