about summary refs log tree commit diff
path: root/sysdeps/x86_64/fpu/s_cosf.S
blob: 81a9757a1b138aa088eef4aa3aadae15cf644aee (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
/* Optimized cosf function.
   Copyright (C) 2012-2014 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */

#include <sysdep.h>
#define __need_Emath
#include <bits/errno.h>

/* Short algorithm description:
 *
 *  1) if |x| == 0: return 1.0-|x|.
 *  2) if |x| <  2^-27: return 1.0-|x|.
 *  3) if |x| <  2^-5 : return 1.0+x^2*DP_COS2_0+x^5*DP_COS2_1.
 *  4) if |x| <   Pi/4: return 1.0+x^2*(C0+x^2*(C1+x^2*(C2+x^2*(C3+x^2*C4)))).
 *  5) if |x| < 9*Pi/4:
 *      5.1) Range reduction: k=trunc(|x|/(Pi/4)), j=(k+1)&0x0e, n=k+3,
 *           t=|x|-j*Pi/4.
 *      5.2) Reconstruction:
 *          s = (-1.0)^((n>>2)&1)
 *          if(n&2 != 0) {
 *              using cos(t) polynomial for |t|<Pi/4, result is
 *              s     * (1.0+t^2*(C0+t^2*(C1+t^2*(C2+t^2*(C3+t^2*C4))))).
 *          } else {
 *              using sin(t) polynomial for |t|<Pi/4, result is
 *              s * t * (1.0+t^2*(S0+t^2*(S1+t^2*(S2+t^2*(S3+t^2*S4))))).
 *          }
 *  6) if |x| < 2^23, large args:
 *      6.1) Range reduction: k=trunc(|x|/(Pi/4)), j=(k+1)&0xfffffffe, n=k+3,
 *           t=|x|-j*Pi/4.
 *      6.2) Reconstruction same as (5.2).
 *  7) if |x| >= 2^23, very large args:
 *      7.1) Range reduction: k=trunc(|x|/(Pi/4)), j=(k+1)&0xfffffffe, n=k+3,
 *           t=|x|-j*Pi/4.
 *      7.2) Reconstruction same as (5.2).
 *  8) if x is Inf, return x-x, and set errno=EDOM.
 *  9) if x is NaN, return x-x.
 *
 * Special cases:
 *  cos(+-0) = 1 not raising inexact,
 *  cos(subnormal) raises inexact,
 *  cos(min_normalized) raises inexact,
 *  cos(normalized) raises inexact,
 *  cos(Inf) = NaN, raises invalid, sets errno to EDOM,
 *  cos(NaN) = NaN.
 */

	.text
ENTRY(__cosf)
	/* Input: single precision x in %xmm0 */

	movd	%xmm0, %eax		/* Bits of x */
	movaps	%xmm0, %xmm7		/* Copy of x */
	cvtss2sd %xmm0, %xmm0		/* DP x */
	movss	L(SP_ABS_MASK)(%rip), %xmm3
	andl	$0x7fffffff, %eax	/* |x| */

	cmpl	$0x3f490fdb, %eax	/* |x|<Pi/4?  */
	jb	L(arg_less_pio4)

	/* Here if |x|>=Pi/4 */
	andps	%xmm7, %xmm3		/* SP |x| */
	andpd	L(DP_ABS_MASK)(%rip), %xmm0	/* DP |x| */
	movss	L(SP_INVPIO4)(%rip), %xmm2	/* SP 1/(Pi/4) */

	cmpl	$0x40e231d6, %eax	/* |x|<9*Pi/4?  */
	jae	L(large_args)

	/* Here if Pi/4<=|x|<9*Pi/4 */
	mulss	%xmm3, %xmm2		/* SP |x|/(Pi/4) */
	cvttss2si %xmm2, %eax		/* k, number of Pi/4 in x */
	lea	L(PIO4J)(%rip), %rsi
	addl	$1, %eax		/* k+1 */
	movl	$0x0e, %edx
	andl	%eax, %edx		/* j = (k+1)&0x0e */
	addl	$2, %eax		/* n */
	subsd	(%rsi,%rdx,8), %xmm0	/* t = |x| - j * Pi/4 */

L(reconstruction):
	/* Input: %eax=n, %xmm0=t */
	testl	$2, %eax		/* n&2 != 0?  */
	jz	L(sin_poly)

/*L(cos_poly):*/
	/* Here if cos(x) calculated using cos(t) polynomial for |t|<Pi/4:
	 * y = t*t; z = y*y;
	 * s = sign(x) * (-1.0)^((n>>2)&1)
	 * result = s     * (1.0+t^2*(C0+t^2*(C1+t^2*(C2+t^2*(C3+t^2*C4)))))
	 */
	shrl	$2, %eax		/* n>>2 */
	mulsd	%xmm0, %xmm0		/* y=t^2 */
	andl	$1, %eax		/* (n>>2)&1 */
	movaps	%xmm0, %xmm1		/* y */
	mulsd	%xmm0, %xmm0		/* z=t^4 */

	movsd	L(DP_C4)(%rip), %xmm4	/* C4 */
	mulsd	%xmm0, %xmm4		/* z*C4 */
	movsd	L(DP_C3)(%rip), %xmm3	/* C3 */
	mulsd	%xmm0, %xmm3		/* z*C3 */
	lea	L(DP_ONES)(%rip), %rsi
	addsd	L(DP_C2)(%rip), %xmm4	/* C2+z*C4 */
	mulsd	%xmm0, %xmm4		/* z*(C2+z*C4) */
	addsd	L(DP_C1)(%rip), %xmm3	/* C1+z*C3 */
	mulsd	%xmm0, %xmm3		/* z*(C1+z*C3) */
	addsd	L(DP_C0)(%rip), %xmm4	/* C0+z*(C2+z*C4) */
	mulsd	%xmm1, %xmm4		/* y*(C0+z*(C2+z*C4)) */

	addsd	%xmm4, %xmm3		/* y*(C0+y*(C1+y*(C2+y*(C3+y*C4)))) */
	/* 1.0+y*(C0+y*(C1+y*(C2+y*(C3+y*C4)))) */
	addsd	L(DP_ONES)(%rip), %xmm3

	mulsd	(%rsi,%rax,8), %xmm3	/* DP result */
	cvtsd2ss %xmm3, %xmm0		/* SP result */
	ret

	.p2align	4
L(sin_poly):
	/* Here if cos(x) calculated using sin(t) polynomial for |t|<Pi/4:
	 * y = t*t; z = y*y;
	 * s = sign(x) * (-1.0)^((n>>2)&1)
	 * result = s * t * (1.0+t^2*(S0+t^2*(S1+t^2*(S2+t^2*(S3+t^2*S4)))))
	 */

	movaps	%xmm0, %xmm4		/* t */
	shrl	$2, %eax		/* n>>2 */
	mulsd	%xmm0, %xmm0		/* y=t^2 */
	andl	$1, %eax		/* (n>>2)&1 */
	movaps	%xmm0, %xmm1		/* y */
	mulsd	%xmm0, %xmm0		/* z=t^4 */

	movsd	L(DP_S4)(%rip), %xmm2	/* S4 */
	mulsd	%xmm0, %xmm2		/* z*S4 */
	movsd	L(DP_S3)(%rip), %xmm3	/* S3 */
	mulsd	%xmm0, %xmm3		/* z*S3 */
	lea	L(DP_ONES)(%rip), %rsi
	addsd	L(DP_S2)(%rip), %xmm2	/* S2+z*S4 */
	mulsd	%xmm0, %xmm2		/* z*(S2+z*S4) */
	addsd	L(DP_S1)(%rip), %xmm3	/* S1+z*S3 */
	mulsd	%xmm0, %xmm3		/* z*(S1+z*S3) */
	addsd	L(DP_S0)(%rip), %xmm2	/* S0+z*(S2+z*S4) */
	mulsd	%xmm1, %xmm2		/* y*(S0+z*(S2+z*S4)) */
	/* t*s, where s = sign(x) * (-1.0)^((n>>2)&1) */
	mulsd	(%rsi,%rax,8), %xmm4
	/* y*(S0+y*(S1+y*(S2+y*(S3+y*S4)))) */
	addsd	%xmm2, %xmm3
	/* t*s*y*(S0+y*(S1+y*(S2+y*(S3+y*S4)))) */
	mulsd	%xmm4, %xmm3
	/* t*s*(1.0+y*(S0+y*(S1+y*(S2+y*(S3+y*S4)))) */
	addsd	%xmm4, %xmm3
	cvtsd2ss %xmm3, %xmm0		/* SP result */
	ret

	.p2align	4
L(large_args):
	/* Here if |x|>=9*Pi/4 */
	cmpl	$0x7f800000, %eax	/* x is Inf or NaN?  */
	jae	L(arg_inf_or_nan)

	/* Here if finite |x|>=9*Pi/4 */
	cmpl	$0x4b000000, %eax	/* |x|<2^23?  */
	jae	L(very_large_args)

	/* Here if 9*Pi/4<=|x|<2^23 */
	movsd	L(DP_INVPIO4)(%rip), %xmm1 /* 1/(Pi/4) */
	mulsd	%xmm0, %xmm1		/* |x|/(Pi/4) */
	cvttsd2si %xmm1, %eax		/* k=trunc(|x|/(Pi/4)) */
	addl	$1, %eax		/* k+1 */
	movl	%eax, %edx
	andl	$0xfffffffe, %edx	/* j=(k+1)&0xfffffffe */
	cvtsi2sdl %edx, %xmm4		/* DP j */
	movsd	L(DP_PIO4HI)(%rip), %xmm2 /* -PIO4HI = high part of -Pi/4 */
	mulsd	%xmm4, %xmm2		/* -j*PIO4HI */
	movsd	L(DP_PIO4LO)(%rip), %xmm3 /* -PIO4LO = low part of -Pi/4 */
	addsd	%xmm2, %xmm0		/* |x| - j*PIO4HI */
	addl	$2, %eax		/* n */
	mulsd	%xmm3, %xmm4		/* j*PIO4LO */
	addsd	%xmm4, %xmm0		/* t = |x| - j*PIO4HI - j*PIO4LO */
	jmp	L(reconstruction)

	.p2align	4
L(very_large_args):
	/* Here if finite |x|>=2^23 */

	/* bitpos = (ix>>23) - BIAS_32 + 59; */
	shrl	$23, %eax		/* eb = biased exponent of x */
	/* bitpos = eb - 0x7f + 59, where 0x7f is exponent bias */
	subl	$68, %eax
	movl	$28, %ecx		/* %cl=28 */
	movl	%eax, %edx		/* bitpos copy */

	/* j = bitpos/28; */
	div	%cl			/* j in register %al=%ax/%cl */
	movapd	%xmm0, %xmm3		/* |x| */
	/* clear unneeded remainder from %ah */
	andl	$0xff, %eax

	imull	$28, %eax, %ecx		/* j*28 */
	lea	L(_FPI)(%rip), %rsi
	movsd	L(DP_HI_MASK)(%rip), %xmm4 /* DP_HI_MASK */
	movapd	%xmm0, %xmm5		/* |x| */
	mulsd	-16(%rsi,%rax,8), %xmm3	/* tmp3 = FPI[j-2]*|x| */
	movapd	%xmm0, %xmm1		/* |x| */
	mulsd	-8(%rsi,%rax,8), %xmm5	/* tmp2 = FPI[j-1]*|x| */
	mulsd	(%rsi,%rax,8), %xmm0	/* tmp0 = FPI[j]*|x| */
	addl	$19, %ecx		/* j*28+19 */
	mulsd	8(%rsi,%rax,8), %xmm1	/* tmp1 = FPI[j+1]*|x| */
	cmpl	%ecx, %edx		/* bitpos>=j*28+19?  */
	jl	L(very_large_skip1)

	/* Here if bitpos>=j*28+19 */
	andpd	%xmm3, %xmm4		/* HI(tmp3) */
	subsd	%xmm4, %xmm3		/* tmp3 = tmp3 - HI(tmp3) */
L(very_large_skip1):

	movsd	L(DP_2POW52)(%rip), %xmm6
	movapd	%xmm5, %xmm2		/* tmp2 copy */
	addsd	%xmm3, %xmm5		/* tmp5 = tmp3 + tmp2 */
	movl	$1, %edx
	addsd	%xmm5, %xmm6		/* tmp6 = tmp5 + 2^52 */
	movsd	8+L(DP_2POW52)(%rip), %xmm4
	movd	%xmm6, %eax		/* k = I64_LO(tmp6); */
	addsd	%xmm6, %xmm4		/* tmp4 = tmp6 - 2^52 */
	comisd	%xmm5, %xmm4		/* tmp4 > tmp5?  */
	jbe	L(very_large_skip2)

	/* Here if tmp4 > tmp5 */
	subl	$1, %eax		/* k-- */
	addsd	8+L(DP_ONES)(%rip), %xmm4 /* tmp4 -= 1.0 */
L(very_large_skip2):

	andl	%eax, %edx		/* k&1 */
	lea	L(DP_ZERONE)(%rip), %rsi
	subsd	%xmm4, %xmm3		/* tmp3 -= tmp4 */
	addsd	(%rsi,%rdx,8), %xmm3	/* t  = DP_ZERONE[k&1] + tmp3 */
	addsd	%xmm2, %xmm3		/* t += tmp2 */
	addsd	%xmm3, %xmm0		/* t += tmp0 */
	addl	$3, %eax		/* n=k+3 */
	addsd	%xmm1, %xmm0		/* t += tmp1 */
	mulsd	L(DP_PIO4)(%rip), %xmm0	/* t *= PI04 */

	jmp	L(reconstruction)	/* end of very_large_args peth */

	.p2align	4
L(arg_less_pio4):
	/* Here if |x|<Pi/4 */
	cmpl	$0x3d000000, %eax	/* |x|<2^-5?  */
	jl	L(arg_less_2pn5)

	/* Here if 2^-5<=|x|<Pi/4 */
	mulsd	%xmm0, %xmm0		/* y=x^2 */
	movaps	%xmm0, %xmm1		/* y */
	mulsd	%xmm0, %xmm0		/* z=x^4 */
	movsd	L(DP_C4)(%rip), %xmm3	/* C4 */
	mulsd	%xmm0, %xmm3		/* z*C4 */
	movsd	L(DP_C3)(%rip), %xmm5	/* C3 */
	mulsd	%xmm0, %xmm5		/* z*C3 */
	addsd	L(DP_C2)(%rip), %xmm3	/* C2+z*C4 */
	mulsd	%xmm0, %xmm3		/* z*(C2+z*C4) */
	addsd	L(DP_C1)(%rip), %xmm5	/* C1+z*C3 */
	mulsd	%xmm0, %xmm5		/* z*(C1+z*C3) */
	addsd	L(DP_C0)(%rip), %xmm3	/* C0+z*(C2+z*C4) */
	mulsd	%xmm1, %xmm3		/* y*(C0+z*(C2+z*C4)) */
	/* y*(C0+y*(C1+y*(C2+y*(C3+y*C4)))) */
	addsd	%xmm5, %xmm3
	/* 1.0 + y*(C0+y*(C1+y*(C2+y*(C3+y*C4)))) */
	addsd	L(DP_ONES)(%rip), %xmm3
	cvtsd2ss %xmm3, %xmm0		/* SP result */
	ret

	.p2align	4
L(arg_less_2pn5):
	/* Here if |x|<2^-5 */
	cmpl	$0x32000000, %eax	/* |x|<2^-27?  */
	jl	L(arg_less_2pn27)

	/* Here if 2^-27<=|x|<2^-5 */
	mulsd	%xmm0, %xmm0		/* DP x^2 */
	movsd	L(DP_COS2_1)(%rip), %xmm3 /* DP DP_COS2_1 */
	mulsd	%xmm0, %xmm3		/* DP x^2*DP_COS2_1 */
	addsd	L(DP_COS2_0)(%rip), %xmm3 /* DP DP_COS2_0+x^2*DP_COS2_1 */
	mulsd	%xmm0, %xmm3		/* DP x^2*DP_COS2_0+x^4*DP_COS2_1 */
	/* DP 1.0+x^2*DP_COS2_0+x^4*DP_COS2_1 */
	addsd	L(DP_ONES)(%rip), %xmm3
	cvtsd2ss %xmm3, %xmm0		/* SP result */
	ret

	.p2align	4
L(arg_less_2pn27):
	/* Here if |x|<2^-27 */
	andps	L(SP_ABS_MASK)(%rip),%xmm7 /* |x| */
	movss	L(SP_ONE)(%rip), %xmm0	/* 1.0 */
	subss	%xmm7, %xmm0		/* result is 1.0-|x| */
	ret

	.p2align	4
L(arg_inf_or_nan):
	/* Here if |x| is Inf or NAN */
	jne	L(skip_errno_setting)	/* in case of x is NaN */

	/* Here if x is Inf. Set errno to EDOM.  */
	call	JUMPTARGET(__errno_location)
	movl	$EDOM, (%rax)

	.p2align	4
L(skip_errno_setting):
	/* Here if |x| is Inf or NAN. Continued.  */
	movaps	%xmm7, %xmm0		/* load x */
	subss	%xmm0, %xmm0		/* Result is NaN */
	ret
END(__cosf)

	.section .rodata, "a"
	.p2align 3
L(PIO4J): /* Table of j*Pi/4, for j=0,1,..,10 */
	.long	0x00000000,0x00000000
	.long	0x54442d18,0x3fe921fb
	.long	0x54442d18,0x3ff921fb
	.long	0x7f3321d2,0x4002d97c
	.long	0x54442d18,0x400921fb
	.long	0x2955385e,0x400f6a7a
	.long	0x7f3321d2,0x4012d97c
	.long	0xe9bba775,0x4015fdbb
	.long	0x54442d18,0x401921fb
	.long	0xbeccb2bb,0x401c463a
	.long	0x2955385e,0x401f6a7a
	.type L(PIO4J), @object
	ASM_SIZE_DIRECTIVE(L(PIO4J))

	.p2align 3
L(_FPI): /* 4/Pi broken into sum of positive DP values */
	.long	0x00000000,0x00000000
	.long	0x6c000000,0x3ff45f30
	.long	0x2a000000,0x3e3c9c88
	.long	0xa8000000,0x3c54fe13
	.long	0xd0000000,0x3aaf47d4
	.long	0x6c000000,0x38fbb81b
	.long	0xe0000000,0x3714acc9
	.long	0x7c000000,0x3560e410
	.long	0x56000000,0x33bca2c7
	.long	0xac000000,0x31fbd778
	.long	0xe0000000,0x300b7246
	.long	0xe8000000,0x2e5d2126
	.long	0x48000000,0x2c970032
	.long	0xe8000000,0x2ad77504
	.long	0xe0000000,0x290921cf
	.long	0xb0000000,0x274deb1c
	.long	0xe0000000,0x25829a73
	.long	0xbe000000,0x23fd1046
	.long	0x10000000,0x2224baed
	.long	0x8e000000,0x20709d33
	.long	0x80000000,0x1e535a2f
	.long	0x64000000,0x1cef904e
	.long	0x30000000,0x1b0d6398
	.long	0x24000000,0x1964ce7d
	.long	0x16000000,0x17b908bf
	.type L(_FPI), @object
	ASM_SIZE_DIRECTIVE(L(_FPI))

/* Coefficients of polynomial
   for cos(x)~=1.0+x^2*DP_COS2_0+x^4*DP_COS2_1, |x|<2^-5.  */
	.p2align 3
L(DP_COS2_0):
	.long	0xff5cc6fd,0xbfdfffff
	.type L(DP_COS2_0), @object
	ASM_SIZE_DIRECTIVE(L(DP_COS2_0))

	.p2align 3
L(DP_COS2_1):
	.long	0xb178dac5,0x3fa55514
	.type L(DP_COS2_1), @object
	ASM_SIZE_DIRECTIVE(L(DP_COS2_1))

	.p2align 3
L(DP_ZERONE):
	.long	0x00000000,0x00000000	/* 0.0 */
	.long	0x00000000,0xbff00000	/* 1.0 */
	.type L(DP_ZERONE), @object
	ASM_SIZE_DIRECTIVE(L(DP_ZERONE))

	.p2align 3
L(DP_ONES):
	.long	0x00000000,0x3ff00000	/* +1.0 */
	.long	0x00000000,0xbff00000	/* -1.0 */
	.type L(DP_ONES), @object
	ASM_SIZE_DIRECTIVE(L(DP_ONES))

/* Coefficients of polynomial
   for sin(t)~=t+t^3*(S0+t^2*(S1+t^2*(S2+t^2*(S3+t^2*S4)))), |t|<Pi/4.  */
	.p2align 3
L(DP_S3):
	.long	0x64e6b5b4,0x3ec71d72
	.type L(DP_S3), @object
	ASM_SIZE_DIRECTIVE(L(DP_S3))

	.p2align 3
L(DP_S1):
	.long	0x10c2688b,0x3f811111
	.type L(DP_S1), @object
	ASM_SIZE_DIRECTIVE(L(DP_S1))

	.p2align 3
L(DP_S4):
	.long	0x1674b58a,0xbe5a947e
	.type L(DP_S4), @object
	ASM_SIZE_DIRECTIVE(L(DP_S4))

	.p2align 3
L(DP_S2):
	.long	0x8b4bd1f9,0xbf2a019f
	.type L(DP_S2),@object
	ASM_SIZE_DIRECTIVE(L(DP_S2))

	.p2align 3
L(DP_S0):
	.long	0x55551cd9,0xbfc55555
	.type L(DP_S0), @object
	ASM_SIZE_DIRECTIVE(L(DP_S0))

/* Coefficients of polynomial
   for cos(t)~=1.0+t^2*(C0+t^2*(C1+t^2*(C2+t^2*(C3+t^2*C4)))), |t|<Pi/4.  */
	.p2align 3
L(DP_C3):
	.long	0x9ac43cc0,0x3efa00eb
	.type L(DP_C3), @object
	ASM_SIZE_DIRECTIVE(L(DP_C3))

	.p2align 3
L(DP_C1):
	.long	0x545c50c7,0x3fa55555
	.type L(DP_C1), @object
	ASM_SIZE_DIRECTIVE(L(DP_C1))

	.p2align 3
L(DP_C4):
	.long	0xdd8844d7,0xbe923c97
	.type L(DP_C4), @object
	ASM_SIZE_DIRECTIVE(L(DP_C4))

	.p2align 3
L(DP_C2):
	.long	0x348b6874,0xbf56c16b
	.type L(DP_C2), @object
	ASM_SIZE_DIRECTIVE(L(DP_C2))

	.p2align 3
L(DP_C0):
	.long	0xfffe98ae,0xbfdfffff
	.type L(DP_C0), @object
	ASM_SIZE_DIRECTIVE(L(DP_C0))

	.p2align 3
L(DP_PIO4):
	.long	0x54442d18,0x3fe921fb	/* Pi/4 */
	.type L(DP_PIO4), @object
	ASM_SIZE_DIRECTIVE(L(DP_PIO4))

	.p2align 3
L(DP_2POW52):
	.long	0x00000000,0x43300000	/* +2^52 */
	.long	0x00000000,0xc3300000	/* -2^52 */
	.type L(DP_2POW52), @object
	ASM_SIZE_DIRECTIVE(L(DP_2POW52))

	.p2align 3
L(DP_INVPIO4):
	.long	0x6dc9c883,0x3ff45f30	/* 4/Pi */
	.type L(DP_INVPIO4), @object
	ASM_SIZE_DIRECTIVE(L(DP_INVPIO4))

	.p2align 3
L(DP_PIO4HI):
	.long	0x54000000,0xbfe921fb	/* High part of Pi/4 */
	.type L(DP_PIO4HI), @object
	ASM_SIZE_DIRECTIVE(L(DP_PIO4HI))

	.p2align 3
L(DP_PIO4LO):
	.long	0x11A62633,0xbe010b46	/* Low part of Pi/4 */
	.type L(DP_PIO4LO), @object
	ASM_SIZE_DIRECTIVE(L(DP_PIO4LO))

	.p2align 2
L(SP_INVPIO4):
	.long	0x3fa2f983		/* 4/Pi */
	.type L(SP_INVPIO4), @object
	ASM_SIZE_DIRECTIVE(L(SP_INVPIO4))

	.p2align 4
L(DP_ABS_MASK): /* Mask for getting DP absolute value */
	.long	0xffffffff,0x7fffffff
	.long	0xffffffff,0x7fffffff
	.type L(DP_ABS_MASK), @object
	ASM_SIZE_DIRECTIVE(L(DP_ABS_MASK))

	.p2align 3
L(DP_HI_MASK): /* Mask for getting high 21 bits of DP value */
	.long	0x00000000,0xffffffff
	.type L(DP_HI_MASK), @object
	ASM_SIZE_DIRECTIVE(L(DP_HI_MASK))

	.p2align 4
L(SP_ABS_MASK): /* Mask for getting SP absolute value */
	.long	0x7fffffff,0x7fffffff
	.long	0x7fffffff,0x7fffffff
	.type L(SP_ABS_MASK), @object
	ASM_SIZE_DIRECTIVE(L(SP_ABS_MASK))

	.p2align 2
L(SP_ONE):
	.long	0x3f800000		/* 1.0 */
	.type L(SP_ONE), @object
	ASM_SIZE_DIRECTIVE(L(SP_ONE))

weak_alias(__cosf, cosf)