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599cf39766
glibc/sysdeps/ieee754
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Wilco Dijkstra 599cf39766 Improve performance of sinf and cosf 
The second patch improves performance of sinf and cosf using the same
algorithms and polynomials.  The returned values are identical to sincosf
for the same input.  ULP definitions for AArch64 and x64 are updated.

sinf/cosf througput gains on Cortex-A72:
* |x| < 0x1p-12 : 1.2x
* |x| < M_PI_4  : 1.8x
* |x| < 2 * M_PI: 1.7x
* |x| < 120.0   : 2.3x
* |x| < Inf     : 3.0x

	* NEWS: Mention sinf, cosf, sincosf.
	* sysdeps/aarch64/libm-test-ulps: Update ULP for sinf, cosf, sincosf.
	* sysdeps/x86_64/fpu/libm-test-ulps: Update ULP for sinf and cosf.
	* sysdeps/x86_64/fpu/multiarch/s_sincosf-fma.c: Add definitions of
	constants rather than including generic sincosf.h.
	* sysdeps/x86_64/fpu/s_sincosf_data.c: Remove.
	* sysdeps/ieee754/flt-32/s_cosf.c (cosf): Rewrite.
	* sysdeps/ieee754/flt-32/s_sincosf.h (reduced_sin): Remove.
	(reduced_cos): Remove.
	(sinf_poly): New function.
	* sysdeps/ieee754/flt-32/s_sinf.c (sinf): Rewrite.
2018-08-14 10:45:59 +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 Improve performance of sinf and cosf 2018-08-14 10:45:59 +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
s_lib_version.c Simplify math-svid-compat code. 2017-08-28 15:19:52 +00:00
s_matherr.c
s_signgam.c