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glibc/sysdeps/ieee754
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Wilco Dijkstra 126c4e3f80 Use generic sinf/cosf in lgammaf_r 
The internal functions __kernel_sinf and __kernel_cosf are used only by
lgammaf_r.  Removing the internal functions and using the generic sinf
and cosf is better overall.  Benchmarking on Cortex-A72 shows the generic
sinf and cosf are 1.4x and 2.3x faster in the range |x| < PI/4, and 0.66x
and 1.1x for |x| < PI/2, so it should make lgammaf_r faster on average.

GLIBC regression tests pass on AArch64.

	* sysdeps/ieee754/flt-32/e_lgammaf_r.c (sin_pif): Use __sinf/__cosf.
	* sysdeps/ieee754/flt-32/k_cosf.c (__kernel_cosf): Remove all code.
	* sysdeps/ieee754/flt-32/k_sinf.c (__kernel_sinf): Likewise.
2018-08-15 16:01:21 +01:00
..
dbl-64 Fix i686-linux-gnu build with GCC mainline. 2018-05-22 16:55:04 +00:00
float128 Add narrowing divide functions. 2018-05-17 00:40:52 +00:00
flt-32 Use generic sinf/cosf in lgammaf_r 2018-08-15 16:01:21 +01:00
ldbl-64-128 Don't include math.h/math_private.h in math_ldbl_opt.h. 2018-03-10 15:18:08 -05:00
ldbl-96 Fix ldbl-96 fma (Inf, Inf, finite) (bug 23272). 2018-06-11 16:33:42 +00:00
ldbl-128 Add narrowing divide functions. 2018-05-17 00:40:52 +00:00
ldbl-128ibm Add narrowing divide functions. 2018-05-17 00:40:52 +00:00
ldbl-128ibm-compat ldbl-128ibm-compat: Add printf_size 2018-07-02 10:51:01 -03:00
ldbl-opt Add a generic significand implementation 2018-06-20 18:15:06 -03:00
soft-fp Add narrowing divide functions. 2018-05-17 00:40:52 +00:00
ieee754.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
k_standard.c Prefer new libm function wrappers for !LIBM_SVID_COMPAT. 2017-09-05 23:35:55 +00:00
k_standardf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
k_standardl.c Do not include math-barriers.h in math_private.h. 2018-05-11 15:11:38 +00:00
Makefile Avoid -Wno-write-strings for k_standard.c. 2015-02-26 22:50:54 +00:00
s_lib_version.c Simplify math-svid-compat code. 2017-08-28 15:19:52 +00:00
s_matherr.c Obsolete matherr, _LIB_VERSION, libieee.a. 2017-08-21 17:45:10 +00:00
s_signgam.c Fix lgamma setting signgam for ISO C (bug 15421). 2015-11-20 22:49:59 +00:00