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fe596486d6
glibc/sysdeps/i386/i686/fpu
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H.J. Lu fe596486d6 i386: Replace assembly versions of e_logf with generic e_logf.c 
This patch replaces i386 assembly versions of e_logf with generic
e_logf.c.  For workload-spec2017.wrf, on Nehalem, it improves
performance by:

                           Before            After     Improvement
reciprocal-throughput      73.3865          40.0454       83%
latency                    90.0985          54.4479       65%

On Skylake, it improves performance by:

                           Before            After     Improvement
reciprocal-throughput      75.1384          22.1452       239%
latency                    91.9441          50.7925       81%

On IvyBridge with --disable-multi-arch, it improves performance by:

                           Before            After     Improvement
reciprocal-throughput      84.5575          28.7879       193%
latency                    103.971          57.5231       80%

	* sysdeps/i386/fpu/e_logf.S: Removed.
	* sysdeps/i386/fpu/e_logf_data.c: Likewise.
	* sysdeps/i386/fpu/w_logf.c: Likewise.
	* sysdeps/i386/i686/fpu/e_logf.S: Likewise.
	* sysdeps/i386/fpu/libm-test-ulps: Updated for generic e_logf.c.
	* sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise.
	* sysdeps/i386/i686/fpu/multiarch/Makefile (libm-sysdep_routines):
	Add e_logf-sse2.
	(CFLAGS-e_logf-sse2.c): New.
	* sysdeps/i386/i686/fpu/multiarch/e_logf-sse2.c: New file.
	* sysdeps/i386/i686/fpu/multiarch/e_logf.c: Likewise.
2017-10-22 08:02:58 -07:00
..
multiarch i386: Replace assembly versions of e_logf with generic e_logf.c 2017-10-22 08:02:58 -07:00
e_log.S No need for boundary case handling in x86-32 __ieee_log 2011-10-15 22:21:53 -04:00
e_logl.S Fix i386/x86_64 logl (sNaN) (bug 20227). 2016-06-08 22:24:06 +00:00
s_fmax.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
s_fmaxf.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
s_fmaxl.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
s_fmin.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
s_fminf.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
s_fminl.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00