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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553
|
/* Optimized sinf 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 x.
* 2) if |x| < 2^-27: return x-x*DP_SMALL, raise underflow only when needed.
* 3) if |x| < 2^-5 : return x+x^3*DP_SIN2_0+x^5*DP_SIN2_1.
* 4) if |x| < Pi/4: return x+x^3*(S0+x^2*(S1+x^2*(S2+x^2*(S3+x^2*S4)))).
* 5) if |x| < 9*Pi/4:
* 5.1) Range reduction: k=trunc(|x|/(Pi/4)), j=(k+1)&0x0e, n=k+1,
* t=|x|-j*Pi/4.
* 5.2) Reconstruction:
* s = sign(x) * (-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+1,
* 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+1,
* 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:
* sin(+-0) = +-0 not raising inexact/underflow,
* sin(subnormal) raises inexact/underflow,
* sin(min_normalized) raises inexact/underflow,
* sin(normalized) raises inexact,
* sin(Inf) = NaN, raises invalid, sets errno to EDOM,
* sin(NaN) = NaN.
*/
.text
ENTRY(__sinf)
/* 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
movl %eax, %edi /* Copy of x bits */
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) */
movl %edi, %ecx /* Load x */
cvttss2si %xmm2, %eax /* k, number of Pi/4 in x */
lea L(PIO4J)(%rip), %rsi
shrl $31, %ecx /* sign of x */
addl $1, %eax /* k+1 */
movl $0x0e, %edx
andl %eax, %edx /* j = (k+1)&0x0e */
subsd (%rsi,%rdx,8), %xmm0 /* t = |x| - j * Pi/4 */
L(reconstruction):
/* Input: %eax=n, %xmm0=t, %ecx=sign(x) */
testl $2, %eax /* n&2 != 0? */
jz L(sin_poly)
/*L(cos_poly):*/
/* Here if sin(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 */
xorl %eax, %ecx /* (-1.0)^((n>>2)&1) XOR sign(x) */
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)) */
/* y*(C0+y*(C1+y*(C2+y*(C3+y*C4)))) */
addsd %xmm4, %xmm3
/* 1.0+y*(C0+y*(C1+y*(C2+y*(C3+y*C4)))) */
addsd L(DP_ONES)(%rip), %xmm3
mulsd (%rsi,%rcx,8), %xmm3 /* DP result */
cvtsd2ss %xmm3, %xmm0 /* SP result */
ret
.p2align 4
L(sin_poly):
/* Here if sin(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 */
xorl %eax, %ecx /* (-1.0)^((n>>2)&1) XOR sign(x) */
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,%rcx,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 */
movl %edi, %ecx /* Load x */
movsd L(DP_PIO4HI)(%rip), %xmm2 /* -PIO4HI = high part of -Pi/4 */
shrl $31, %ecx /* sign bit of x */
mulsd %xmm4, %xmm2 /* -j*PIO4HI */
movsd L(DP_PIO4LO)(%rip), %xmm3 /* -PIO4LO = low part of -Pi/4 */
addsd %xmm2, %xmm0 /* |x| - j*PIO4HI */
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 */
movl %edi, %ecx /* Load x */
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 */
shrl $31, %ecx /* sign of x */
addsd %xmm3, %xmm0 /* t += tmp0 */
addl $1, %eax /* n=k+1 */
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 */
movaps %xmm0, %xmm3 /* x */
mulsd %xmm0, %xmm0 /* y=x^2 */
movaps %xmm0, %xmm1 /* y */
mulsd %xmm0, %xmm0 /* z=x^4 */
movsd L(DP_S4)(%rip), %xmm4 /* S4 */
mulsd %xmm0, %xmm4 /* z*S4 */
movsd L(DP_S3)(%rip), %xmm5 /* S3 */
mulsd %xmm0, %xmm5 /* z*S3 */
addsd L(DP_S2)(%rip), %xmm4 /* S2+z*S4 */
mulsd %xmm0, %xmm4 /* z*(S2+z*S4) */
addsd L(DP_S1)(%rip), %xmm5 /* S1+z*S3 */
mulsd %xmm0, %xmm5 /* z*(S1+z*S3) */
addsd L(DP_S0)(%rip), %xmm4 /* S0+z*(S2+z*S4) */
mulsd %xmm1, %xmm4 /* y*(S0+z*(S2+z*S4)) */
mulsd %xmm3, %xmm5 /* x*z*(S1+z*S3) */
mulsd %xmm3, %xmm4 /* x*y*(S0+z*(S2+z*S4)) */
/* x*y*(S0+y*(S1+y*(S2+y*(S3+y*S4)))) */
addsd %xmm5, %xmm4
/* x + x*y*(S0+y*(S1+y*(S2+y*(S3+y*S4)))) */
addsd %xmm4, %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 */
movaps %xmm0, %xmm1 /* DP x */
mulsd %xmm0, %xmm0 /* DP x^2 */
movsd L(DP_SIN2_1)(%rip), %xmm3 /* DP DP_SIN2_1 */
mulsd %xmm0, %xmm3 /* DP x^2*DP_SIN2_1 */
addsd L(DP_SIN2_0)(%rip), %xmm3 /* DP DP_SIN2_0+x^2*DP_SIN2_1 */
mulsd %xmm0, %xmm3 /* DP x^2*DP_SIN2_0+x^4*DP_SIN2_1 */
mulsd %xmm1, %xmm3 /* DP x^3*DP_SIN2_0+x^5*DP_SIN2_1 */
addsd %xmm1, %xmm3 /* DP x+x^3*DP_SIN2_0+x^5*DP_SIN2_1 */
cvtsd2ss %xmm3, %xmm0 /* SP result */
ret
.p2align 4
L(arg_less_2pn27):
cmpl $0, %eax /* x=0? */
je L(arg_zero) /* in case x=0 return sin(+-0)==+-0 */
/* Here if |x|<2^-27 */
/*
* Special cases here:
* sin(subnormal) raises inexact/underflow
* sin(min_normalized) raises inexact/underflow
* sin(normalized) raises inexact
*/
movaps %xmm0, %xmm3 /* Copy of DP x */
mulsd L(DP_SMALL)(%rip), %xmm0 /* x*DP_SMALL */
subsd %xmm0, %xmm3 /* Result is x-x*DP_SMALL */
cvtsd2ss %xmm3, %xmm0 /* Result converted to SP */
ret
.p2align 4
L(arg_zero):
movaps %xmm7, %xmm0 /* SP 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(__sinf)
.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 sin(x)~=x+x^3*DP_SIN2_0+x^5*DP_SIN2_1, |x|<2^-5. */
.p2align 3
L(DP_SIN2_0):
.long 0x5543d49d,0xbfc55555
.type L(DP_SIN2_0), @object
ASM_SIZE_DIRECTIVE(L(DP_SIN2_0))
.p2align 3
L(DP_SIN2_1):
.long 0x75cec8c5,0x3f8110f4
.type L(DP_SIN2_1), @object
ASM_SIZE_DIRECTIVE(L(DP_SIN2_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))
.p2align 3
L(DP_SMALL):
.long 0x00000000,0x3cd00000 /* 2^(-50) */
.type L(DP_SMALL), @object
ASM_SIZE_DIRECTIVE(L(DP_SMALL))
/* 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))
weak_alias(__sinf, sinf)
|