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glibc/sysdeps/ieee754/dbl-64
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Siddhesh Poyarekar ba4e688461 Check n instead of k1 to decide on sign of sin/cos result 
For k1 in 1 and 3, n can only have values of 0 and 2, so checking k1 &
2 is equivalent to checking n & 2.  We prefer the latter so that we
don't use k1 for anything other than selecting the quadrant in
do_sincos_1, thus dropping it completely.

The previous logic was:

    "Compute sine for the value and based on the new rotated quadrant
     (k1) negate the value if we're in the fourth quadrant."

With this change, the logic now is:

    "Compute sine for the value and negate it if we were either (1) in
     the fourth quadrant or (2) we actually wanted the cosine and were
     in the third quadrant."

	* sysdeps/ieee754/dbl-64/s_sin.c (do_sincos_1): Check N
	instead of K1.
2016-10-06 00:34:26 +05:30
..
wordsize-64
sparc64: add a VIS3 version of ceil, floor and trunc
2016-08-03 13:35:22 +02:00
asincos.tbl
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2016-01-04 16:05:18 +00:00
atnat2.h
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2016-01-04 16:05:18 +00:00
atnat.h
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2016-01-04 16:05:18 +00:00
branred.c
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2016-01-04 16:05:18 +00:00
branred.h
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2016-01-04 16:05:18 +00:00
dbl2mpn.c
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2016-01-04 16:05:18 +00:00
dla.h
Use __builtin_fma more in dbl-64 code.
2016-09-30 15:49:51 +00:00
doasin.c
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2016-01-04 16:05:18 +00:00
doasin.h
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2016-01-04 16:05:18 +00:00
dosincos.c
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2016-01-04 16:05:18 +00:00
dosincos.h
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2016-01-04 16:05:18 +00:00
e_acos.c
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e_acosh.c
Format floating routines.
2013-10-17 16:03:24 +02:00
e_asin.c
Fix dbl-64 asin (sNaN) (bug 20213).
2016-06-06 22:21:11 +00:00
e_atan2.c
Fix dbl-64 atan2 (sNaN, qNaN) (bug 20252).
2016-06-13 21:43:22 +00:00
e_atanh.c
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2016-01-04 16:05:18 +00:00
e_cosh.c
Avoid excess range overflowing results from cosh, sinh, lgamma (bug 18980).
2015-09-18 20:00:48 +00:00
e_exp2.c
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2016-01-04 16:05:18 +00:00
e_exp10.c
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2016-01-04 16:05:18 +00:00
e_exp.c
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2016-01-04 16:05:18 +00:00
e_fmod.c
Use glibc_likely instead __builtin_expect.
2014-02-10 15:07:12 +01:00
e_gamma_r.c
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2016-01-04 16:05:18 +00:00
e_hypot.c
Fix hypot missing underflows (bug 18803).
2015-09-24 23:43:57 +00:00
e_ilogb.c
Format floating routines.
2013-10-17 16:03:24 +02:00
e_j0.c
Avoid uninitialized warnings in Bessel functions.
2015-02-26 21:49:19 +00:00
e_j1.c
Fix j1, jn missing errno setting on underflow (bug 18611).
2015-10-23 21:37:33 +00:00
e_jn.c
Fix j1, jn missing errno setting on underflow (bug 18611).
2015-10-23 21:37:33 +00:00
e_lgamma_r.c
Remove GCC version conditionals on -Wmaybe-uninitialized pragmas.
2015-10-27 23:42:20 +00:00
e_log2.c
Work around powerpc32 integer 0 converting to -0 (bug 887, bug 19049, bug 19050).
2015-10-05 17:46:50 +00:00
e_log10.c
Work around powerpc32 integer 0 converting to -0 (bug 887, bug 19049, bug 19050).
2015-10-05 17:46:50 +00:00
e_log.c
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2016-01-04 16:05:18 +00:00
e_pow.c
Eliminate redundant sign extensions in pow()
2016-01-04 14:55:38 -02:00
e_rem_pio2.c
Format floating routines.
2013-10-17 16:03:24 +02:00
e_remainder.c
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2016-01-04 16:05:18 +00:00
e_sinh.c
Refactor code forcing underflow exceptions.
2015-09-23 22:42:30 +00:00
e_sqrt.c
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2016-01-04 16:05:18 +00:00
gamma_product.c
Merge common usage of mul_split function
2016-08-19 11:29:43 -05:00
gamma_productf.c
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2016-01-04 16:05:18 +00:00
halfulp.c
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2016-01-04 16:05:18 +00:00
k_cos.c
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k_rem_pio2.c
Get rid of array-bounds warning in __kernel_rem_pio2[f] with gcc 6.1 -O3.
2016-08-18 12:20:35 +02:00
k_sin.c
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k_tan.c
Replace sysdeps/ieee754/dbl-64/k_tan.c with empty file
2012-02-26 16:10:46 +01:00
lgamma_neg.c
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2016-01-04 16:05:18 +00:00
lgamma_product.c
Merge common usage of mul_split function
2016-08-19 11:29:43 -05:00
Makefile
powerpc: Fix incorrect results for pow when using FMA
2015-03-10 09:38:54 -04:00
MathLib.h
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2016-01-04 16:05:18 +00:00
mpa-arch.h
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2016-01-04 16:05:18 +00:00
mpa.c
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2016-01-04 16:05:18 +00:00
mpa.h
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2016-01-04 16:05:18 +00:00
mpatan2.c
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2016-01-04 16:05:18 +00:00
mpatan.c
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2016-01-04 16:05:18 +00:00
mpatan.h
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2016-01-04 16:05:18 +00:00
mpexp.c
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2016-01-04 16:05:18 +00:00
mplog.c
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2016-01-04 16:05:18 +00:00
mpn2dbl.c
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2016-01-04 16:05:18 +00:00
mpsqrt.c
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2016-01-04 16:05:18 +00:00
mpsqrt.h
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2016-01-04 16:05:18 +00:00
mptan.c
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2016-01-04 16:05:18 +00:00
mydefs.h
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2016-01-04 16:05:18 +00:00
powtwo.tbl
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2016-01-04 16:05:18 +00:00
root.tbl
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2016-01-04 16:05:18 +00:00
s_asinh.c
Refactor code forcing underflow exceptions.
2015-09-23 22:42:30 +00:00
s_atan.c
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2016-01-04 16:05:18 +00:00
s_cbrt.c
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2016-01-04 16:05:18 +00:00
s_ceil.c
Do not raise "inexact" from generic ceil (bug 15479).
2016-05-24 17:42:10 +00:00
s_copysign.c
Format floating routines.
2013-10-17 16:03:24 +02:00
s_cos.c
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s_erf.c
Work around powerpc32 integer 0 converting to -0 (bug 887, bug 19049, bug 19050).
2015-10-05 17:46:50 +00:00
s_expm1.c
Refactor code forcing underflow exceptions.
2015-09-23 22:42:30 +00:00
s_fabs.c
2015-05-28 Wilco Dijkstra <wdijkstr@arm.com>
2015-05-28 11:42:55 +01:00
s_finite.c
Fix __finitel libm compat symbol version.
2016-01-20 19:04:43 +00:00
s_floor.c
Do not raise "inexact" from generic floor (bug 15479).
2016-05-24 17:44:46 +00:00
s_fma.c
Call math_opt_barrier inside if
2016-01-15 05:23:20 -08:00
s_fmaf.c
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2016-01-04 16:05:18 +00:00
s_fpclassify.c
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2016-01-04 16:05:18 +00:00
s_frexp.c
Fix frexp (NaN) (bug 20250).
2016-06-13 17:27:19 +00:00
s_isinf.c
math: add LDBL_CLASSIFY_COMPAT support
2015-12-03 13:00:46 -05:00
s_isnan.c
math: add LDBL_CLASSIFY_COMPAT support
2015-12-03 13:00:46 -05:00
s_issignaling.c
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2016-01-04 16:05:18 +00:00
s_llrint.c
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2016-01-04 16:05:18 +00:00
s_llround.c
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2016-01-04 16:05:18 +00:00
s_log1p.c
Refactor code forcing underflow exceptions.
2015-09-23 22:42:30 +00:00
s_logb.c
Work around powerpc32 integer 0 converting to -0 (bug 887, bug 19049, bug 19050).
2015-10-05 17:46:50 +00:00
s_lrint.c
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2016-01-04 16:05:18 +00:00
s_lround.c
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2016-01-04 16:05:18 +00:00
s_modf.c
Use glibc_likely instead __builtin_expect.
2014-02-10 15:07:12 +01:00
s_nearbyint.c
Format floating routines.
2013-10-17 16:03:24 +02:00
s_nexttoward.c
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s_nextup.c
Add nextup and nextdown math functions
2016-06-16 21:37:45 +05:30
s_remquo.c
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2016-01-04 16:05:18 +00:00
s_rint.c
Format floating routines.
2013-10-17 16:03:24 +02:00
s_round.c
Do not raise "inexact" from generic round (bug 15479).
2016-05-24 17:46:55 +00:00
s_scalbln.c
[BZ #6803] Set errno for scalbln, scalbn
2014-06-20 07:48:20 +05:30
s_scalbn.c
Make scalbn set errno (bug 6803).
2015-09-16 21:11:00 +00:00
s_signbit.c
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2016-01-04 16:05:18 +00:00
s_sin.c
Check n instead of k1 to decide on sign of sin/cos result
2016-10-06 00:34:26 +05:30
s_sincos.c
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2016-01-04 16:05:18 +00:00
s_tan.c
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2016-01-04 16:05:18 +00:00
s_tanh.c
Refactor code forcing underflow exceptions.
2015-09-23 22:42:30 +00:00
s_trunc.c
sparc64: add a VIS3 version of ceil, floor and trunc
2016-08-03 13:35:22 +02:00
sincos32.c
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2016-01-04 16:05:18 +00:00
sincos32.h
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2016-01-04 16:05:18 +00:00
sincostab.c
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2016-01-04 16:05:18 +00:00
slowexp.c
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2016-01-04 16:05:18 +00:00
slowpow.c
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2016-01-04 16:05:18 +00:00
t_exp2.h
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t_exp.c
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2016-01-04 16:05:18 +00:00
uasncs.h
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2016-01-04 16:05:18 +00:00
uatan.tbl
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uexp.h
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uexp.tbl
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ulog.h
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ulog.tbl
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upow.h
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upow.tbl
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urem.h
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usncs.h
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utan.h
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utan.tbl
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2016-01-04 16:05:18 +00:00
w_exp.c
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2016-01-04 16:05:18 +00:00
x2y2m1.c
Merge common usage of mul_split function
2016-08-19 11:29:43 -05:00
x2y2m1f.c
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2016-01-04 16:05:18 +00:00