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mirror of https://git.FreeBSD.org/src.git synced 2024-12-14 10:09:48 +00:00
freebsd/lib/msun
Bruce Evans e822ea5b2a Inline __ieee754__rem_pio2f(). On amd64 (A64) and i386 (A64), this
gives an average speedup of about 12 cycles or 17% for
9pi/4 < |x| <= 2**19pi/2 and a smaller speedup for larger x, and a
small speeddown for |x| <= 9pi/4 (only 1-2 cycles average, but that
is 4%).

Inlining this is less likely to bust caches than inlining the float
version since it is much smaller (about 220 bytes text and rodata) and
has many fewer branches.  However, the float version was already large
due to its manual inlining of the branches and also the polynomial
evaluations.
2008-02-25 22:19:17 +00:00
..
amd64 Use hardware remainder on amd64 since it is 5 to 10 times faster than 2008-02-13 06:01:48 +00:00
arm Use C comments since we now preprocess these files with CPP. 2007-04-29 14:05:22 +00:00
bsdsrc Eliminate some warnings. 2008-02-22 02:26:51 +00:00
i387 Implement rintl(), nearbyintl(), lrintl(), and llrintl(). 2008-01-14 02:12:07 +00:00
ia64 Use C comments since we now preprocess these files with CPP. 2007-04-29 14:05:22 +00:00
ld80 2 long double constants were missing L suffixes. This helped break tanl() 2008-02-18 15:39:52 +00:00
ld128 Add kernel functions for 128-bit long doubles. These could be improved 2008-02-17 07:32:31 +00:00
man Document return values better. 2008-02-18 19:02:49 +00:00
powerpc Let PowerPC world optionally build with -msoft-float. For FPU-less PowerPC 2008-02-24 19:22:53 +00:00
sparc64 Use C comments since we now preprocess these files with CPP. 2007-04-29 14:05:22 +00:00
src Inline __ieee754__rem_pio2f(). On amd64 (A64) and i386 (A64), this 2008-02-25 22:19:17 +00:00
Makefile Add tgammaf() as a simple wrapper around tgamma(). 2008-02-18 17:27:11 +00:00
Symbol.map Add tgammaf() as a simple wrapper around tgamma(). 2008-02-18 17:27:11 +00:00