1 /*
2  * Data definition for sinf, cosf and sincosf.
3  *
4  * Copyright (c) 2018-2019, Arm Limited.
5  * SPDX-License-Identifier: MIT OR Apache-2.0 WITH LLVM-exception
6  */
7 
8 #include <stdint.h>
9 #include <math.h>
10 #include "math_config.h"
11 #include "sincosf.h"
12 
13 /* The constants and polynomials for sine and cosine.  The 2nd entry
14    computes -cos (x) rather than cos (x) to get negation for free.  */
15 const sincos_t __sincosf_table[2] =
16 {
17   {
18     { 1.0, -1.0, -1.0, 1.0 },
19 #if TOINT_INTRINSICS
20     0x1.45F306DC9C883p-1,
21 #else
22     0x1.45F306DC9C883p+23,
23 #endif
24     0x1.921FB54442D18p0,
25     0x1p0,
26     -0x1.ffffffd0c621cp-2,
27     0x1.55553e1068f19p-5,
28     -0x1.6c087e89a359dp-10,
29     0x1.99343027bf8c3p-16,
30     -0x1.555545995a603p-3,
31     0x1.1107605230bc4p-7,
32     -0x1.994eb3774cf24p-13
33   },
34   {
35     { 1.0, -1.0, -1.0, 1.0 },
36 #if TOINT_INTRINSICS
37     0x1.45F306DC9C883p-1,
38 #else
39     0x1.45F306DC9C883p+23,
40 #endif
41     0x1.921FB54442D18p0,
42     -0x1p0,
43     0x1.ffffffd0c621cp-2,
44     -0x1.55553e1068f19p-5,
45     0x1.6c087e89a359dp-10,
46     -0x1.99343027bf8c3p-16,
47     -0x1.555545995a603p-3,
48     0x1.1107605230bc4p-7,
49     -0x1.994eb3774cf24p-13
50   }
51 };
52 
53 /* Table with 4/PI to 192 bit precision.  To avoid unaligned accesses
54    only 8 new bits are added per entry, making the table 4 times larger.  */
55 const uint32_t __inv_pio4[24] =
56 {
57   0xa2,       0xa2f9,	  0xa2f983,   0xa2f9836e,
58   0xf9836e4e, 0x836e4e44, 0x6e4e4415, 0x4e441529,
59   0x441529fc, 0x1529fc27, 0x29fc2757, 0xfc2757d1,
60   0x2757d1f5, 0x57d1f534, 0xd1f534dd, 0xf534ddc0,
61   0x34ddc0db, 0xddc0db62, 0xc0db6295, 0xdb629599,
62   0x6295993c, 0x95993c43, 0x993c4390, 0x3c439041
63 };
64