Szabolcs Nagy 875c76c704 New generic log2f ... Similar to the new logf: double precision arithmetics and a small lookup table is used. The argument reduction step is the same as in the new logf. without wrapper on aarch64: log2f reciprocal-throughput: 2.3x faster log2f latency: 2.1x faster old worst case error: 1.72 ulp new worst case error: 0.75 ulp aarch64 .text size: -252 bytes aarch64 .rodata size: +244 bytes * math/Makefile (type-float-routines): Add e_log2f_data. * sysdeps/ieee754/flt-32/e_log2f.c: New implementation. * sysdeps/ieee754/flt-32/e_log2f_data.c: New file. * sysdeps/ieee754/flt-32/math_config.h (__log2f_data): Define. (LOG2F_TABLE_BITS, LOG2F_POLY_ORDER): Define. * sysdeps/i386/fpu/e_log2f_data.c: New file. * sysdeps/ia64/fpu/e_log2f_data.c: New file. * sysdeps/m68k/m680x0/fpu/e_log2f_data.c: New file.		2017-09-29 17:17:41 +01:00
..
e_acosf.c	Fix acosf underflow (bug 14153).	2012-05-25 11:07:07 +00:00
e_acoshf.c	Use <> for math.h and math_private.h everywhere.	2012-03-09 16:09:10 -08:00
e_asinf.c	Refactor code forcing underflow exceptions.	2015-09-23 22:42:30 +00:00
e_atan2f.c	Consistently use uintN_t not u_intN_t in libm.	2017-08-03 19:55:04 +00:00
e_atanhf.c	Update copyright dates with scripts/update-copyrights.	2017-01-01 00:14:16 +00:00
e_coshf.c	Avoid excess range overflowing results from cosh, sinh, lgamma (bug 18980).	2015-09-18 20:00:48 +00:00
e_exp2f_data.c	Optimized generic expf and exp2f with wrappers	2017-09-25 10:44:39 +01:00
e_exp2f.c	Optimized generic expf and exp2f with wrappers	2017-09-25 10:44:39 +01:00
e_expf.c	Optimized generic expf and exp2f with wrappers	2017-09-25 10:44:39 +01:00
e_fmodf.c	Consistently use uintN_t not u_intN_t in libm.	2017-08-03 19:55:04 +00:00
e_gammaf_r.c	Consistently use uintN_t not u_intN_t in libm.	2017-08-03 19:55:04 +00:00
e_hypotf.c	Fix hypot sNaN handling (bug 20940).	2016-12-07 01:16:36 +00:00
e_ilogbf.c	Remove useless __ilogb*_finite aliases	2012-04-18 00:40:13 +02:00
e_j0f.c	Fix y0 and y1 exception handling for zero input [BZ #21134]	2017-02-15 10:30:59 -02:00
e_j1f.c	Fix y0 and y1 exception handling for zero input [BZ #21134]	2017-02-15 10:30:59 -02:00
e_jnf.c	Consistently use uintN_t not u_intN_t in libm.	2017-08-03 19:55:04 +00:00
e_lgammaf_r.c	Narrowing the visibility of libc-internal.h even further.	2017-03-01 20:33:46 -05:00
e_log2f_data.c	New generic log2f	2017-09-29 17:17:41 +01:00
e_log2f.c	New generic log2f	2017-09-29 17:17:41 +01:00
e_log10f.c	Consistently use uintN_t not u_intN_t in libm.	2017-08-03 19:55:04 +00:00
e_logf_data.c	New generic logf	2017-09-29 11:46:46 +01:00
e_logf.c	New generic logf	2017-09-29 11:46:46 +01:00
e_powf.c	Consistently use uintN_t not u_intN_t in libm.	2017-08-03 19:55:04 +00:00
e_rem_pio2f.c	Consistently use uintN_t not u_intN_t in libm.	2017-08-03 19:55:04 +00:00
e_remainderf.c	Consistently use uintN_t not u_intN_t in libm.	2017-08-03 19:55:04 +00:00
e_sinhf.c	Refactor code forcing underflow exceptions.	2015-09-23 22:42:30 +00:00
e_sqrtf.c	Consistently use uintN_t not u_intN_t in libm.	2017-08-03 19:55:04 +00:00
k_cosf.c	Remove trailing whitespace.	2013-06-05 20:44:03 +00:00
k_rem_pio2f.c	Narrowing the visibility of libc-internal.h even further.	2017-03-01 20:33:46 -05:00
k_sinf.c	Refactor code forcing underflow exceptions.	2015-09-23 22:42:30 +00:00
k_tanf.c	Refactor code forcing underflow exceptions.	2015-09-23 22:42:30 +00:00
lgamma_negf.c	Update copyright dates with scripts/update-copyrights.	2017-01-01 00:14:16 +00:00
lgamma_productf.c	Fix lgamma (negative) inaccuracy (bug 2542, bug 2543, bug 2558).	2015-09-10 22:27:58 +00:00
math_config.h	New generic log2f	2017-09-29 17:17:41 +01:00
math_errf.c	Optimized generic expf and exp2f with wrappers	2017-09-25 10:44:39 +01:00
mpn2flt.c	Update copyright dates with scripts/update-copyrights.	2017-01-01 00:14:16 +00:00
s_asinhf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_atanf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_cbrtf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_ceilf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_copysignf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_cosf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_erff.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_expm1f.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_fabsf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_finitef.c	Consistently use uintN_t not u_intN_t in libm.	2017-08-03 19:55:04 +00:00
s_floorf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_fpclassifyf.c	Consistently use uintN_t not u_intN_t in libm.	2017-08-03 19:55:04 +00:00
s_frexpf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_fromfpf_main.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_fromfpf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_fromfpxf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_getpayloadf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_isinff.c	Use <> for math.h and math_private.h everywhere.	2012-03-09 16:09:10 -08:00
s_isnanf.c	Consistently use uintN_t not u_intN_t in libm.	2017-08-03 19:55:04 +00:00
s_issignalingf.c	Consistently use uintN_t not u_intN_t in libm.	2017-08-03 19:55:04 +00:00
s_llrintf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_llroundf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_log1pf.c	Refactor code forcing underflow exceptions.	2015-09-23 22:42:30 +00:00
s_logbf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_lrintf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_lroundf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_modff.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_nearbyintf.c	Fix nearbyint arithmetic moved before feholdexcept (bug 22225).	2017-09-28 01:59:02 +00:00
s_nextafterf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_nextupf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_remquof.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_rintf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_roundevenf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_roundf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_scalblnf.c	[BZ #6803] Set errno for scalbln, scalbn	2014-06-20 07:48:20 +05:30
s_scalbnf.c	Make scalbn set errno (bug 6803).	2015-09-16 21:11:00 +00:00
s_setpayloadf_main.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_setpayloadf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_setpayloadsigf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_signbitf.c	Update copyright dates with scripts/update-copyrights.	2017-01-01 00:14:16 +00:00
s_sincosf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_sinf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_tanf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_tanhf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_totalorderf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_totalordermagf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_truncf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_ufromfpf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00
s_ufromfpxf.c	Use libm_alias_float in flt-32.	2017-09-22 20:24:12 +00:00