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git://sourceware.org / glibc.git / commit

author	H.J. Lu <hjl.tools@gmail.com>
	Fri, 5 Mar 2021 15:26:42 +0000 (07:26 -0800)
committer	H.J. Lu <hjl.tools@gmail.com>
	Mon, 29 Mar 2021 14:40:17 +0000 (07:40 -0700)
commit	7ebba91361badf7531d4e75050627a88d424872f
tree	d99781a37b47b95441ad358d119ec3741960d405	tree
parent	91264fe3577fe887b4860923fa6142b5274c8965	commit \| diff

x86-64: Add AVX optimized string/memory functions for RTM

Since VZEROUPPER triggers RTM abort while VZEROALL won't, select AVX
optimized string/memory functions with

xtest
jz 1f
vzeroall
ret
1:
vzeroupper
ret

at function exit on processors with usable RTM, but without 256-bit EVEX
instructions to avoid VZEROUPPER inside a transactionally executing RTM
region.

52 files changed:

sysdeps/x86_64/multiarch/Makefile		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/ifunc-avx2.h		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/ifunc-impl-list.c		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/ifunc-memcmp.h		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/ifunc-memmove.h		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/ifunc-memset.h		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/ifunc-strcpy.h		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/ifunc-wmemset.h		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/memchr-avx2-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/memchr-avx2.S		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/memcmp-avx2-movbe-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/memcmp-avx2-movbe.S		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/memmove-avx-unaligned-erms-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/memrchr-avx2-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/memrchr-avx2.S		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/memset-avx2-unaligned-erms-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/memset-avx2-unaligned-erms.S		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/rawmemchr-avx2-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/stpcpy-avx2-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/stpncpy-avx2-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/strcat-avx2-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/strcat-avx2.S		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/strchr-avx2-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/strchr-avx2.S		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/strchr.c		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/strchrnul-avx2-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/strcmp-avx2-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/strcmp-avx2.S		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/strcmp.c		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/strcpy-avx2-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/strcpy-avx2.S		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/strlen-avx2-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/strlen-avx2.S		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/strncat-avx2-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/strncmp-avx2-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/strncmp.c		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/strncpy-avx2-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/strnlen-avx2-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/strrchr-avx2-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/strrchr-avx2.S		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/wcschr-avx2-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/wcscmp-avx2-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/wcslen-avx2-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/wcsncmp-avx2-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/wcsnlen-avx2-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/wcsnlen.c		diff \| blob \| blame \| history
sysdeps/x86_64/multiarch/wcsrchr-avx2-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/wmemchr-avx2-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/multiarch/wmemcmp-avx2-movbe-rtm.S	[new file with mode: 0644]	blob
sysdeps/x86_64/sysdep.h		diff \| blob \| blame \| history

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