glibc/sysdeps/x86_64/fpu/multiarch/s_roundeven-c.c

#define __roundeven __roundeven_c
#include <sysdeps/ieee754/dbl-64/s_roundeven.c>
x86_64: roundeven with sse4.1 support This patch adds support for the sse4.1 hardware floating point roundeven. Here is some benchmark results on my systems: =AMD Ryzen 9 3900X 12-Core Processor= * benchmark result before this commit \| \| roundeven \| roundevenf \| \|------------\|--------------\|--------------\| \| duration \| 3.75587e+09 \| 3.75114e+09 \| \| iterations \| 3.93053e+08 \| 4.35402e+08 \| \| max \| 52.592 \| 58.71 \| \| min \| 7.98 \| 7.22 \| \| mean \| 9.55563 \| 8.61535 \| * benchmark result after this commit \| \| roundeven \| roundevenf \| \|------------\|---------------\|--------------\| \| duration \| 3.73815e+09 \| 3.73738e+09 \| \| iterations \| 5.82692e+08 \| 5.91498e+08 \| \| max \| 56.468 \| 51.642 \| \| min \| 6.27 \| 6.156 \| \| mean \| 6.41532 \| 6.3185 \| =Intel(R) Pentium(R) CPU D1508 @ 2.20GHz= * benchmark result before this commit \| \| roundeven \| roundevenf \| \|------------\|--------------\|--------------\| \| duration \| 2.18208e+09 \| 2.18258e+09 \| \| iterations \| 2.39932e+08 \| 2.46924e+08 \| \| max \| 96.378 \| 98.035 \| \| min \| 6.776 \| 5.94 \| \| mean \| 9.09456 \| 8.83907 \| * benchmark result after this commit \| \| roundeven \| roundevenf \| \|------------\|--------------\|--------------\| \| duration \| 2.17415e+09 \| 2.17005e+09 \| \| iterations \| 3.56193e+08 \| 4.09824e+08 \| \| max \| 51.693 \| 97.192 \| \| min \| 5.926 \| 5.093 \| \| mean \| 6.10385 \| 5.29507 \| Signed-off-by: Shen-Ta Hsieh <ibmibmibm.tw@gmail.com> Reviewed-by: H.J. Lu <hjl.tools@gmail.com> 2021-05-24 01:43:11 +00:00			`#define __roundeven __roundeven_c`
			`#include <sysdeps/ieee754/dbl-64/s_roundeven.c>`