H.J. Lu 3ec5d83d2a x86-64: Avoid rep movsb with short distance [BZ #27130] ... When copying with "rep movsb", if the distance between source and destination is N*4GB + [1..63] with N >= 0, performance may be very slow. This patch updates memmove-vec-unaligned-erms.S for AVX and AVX512 versions with the distance in RCX: cmpl $63, %ecx // Don't use "rep movsb" if ECX <= 63 jbe L(Don't use rep movsb") Use "rep movsb" Benchtests data with bench-memcpy, bench-memcpy-large, bench-memcpy-random and bench-memcpy-walk on Skylake, Ice Lake and Tiger Lake show that its performance impact is within noise range as "rep movsb" is only used for data size >= 4KB.		2021-01-04 07:58:57 -08:00
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aarch64	aarch64: fix stack missing after sp is updated	2021-01-04 15:37:06 +00:00
alpha	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
arc	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
arm	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
csky	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
generic	Move generic nan-pseudo-number.h to ldbl-96	2021-01-04 14:51:52 +05:30
gnu	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
hppa	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
htl	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
hurd	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
i386	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
ia64	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
ieee754	Drop nan-pseudo-number.h usage from tests	2021-01-04 20:49:56 +05:30
m68k	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
mach	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
microblaze	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
mips	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
nios2	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
nptl	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
posix	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
powerpc	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
pthread	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
riscv	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
s390	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
sh	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
sparc	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
unix	Update copyright dates not handled by scripts/update-copyrights.	2021-01-02 12:17:34 -08:00
wordsize-32	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
wordsize-64	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
x86	Drop nan-pseudo-number.h usage from tests	2021-01-04 20:49:56 +05:30
x86_64	x86-64: Avoid rep movsb with short distance [BZ #27130]	2021-01-04 07:58:57 -08:00