Noah Goldstein 08cbcd4dbc x86: Remove unnecessary overflow check from wcsnlen-sse4_1.S ... No bug. The way wcsnlen will check if near the end of maxlen is the following macro: mov %r11, %rsi; \ subq %rax, %rsi; \ andq $-64, %rax; \ testq $-64, %rsi; \ je L(strnlen_ret) Which words independently of s + maxlen overflowing. So the second overflow check is unnecissary for correctness and just extra overhead in the common no overflow case. test-strlen.c, test-wcslen.c, test-strnlen.c and test-wcsnlen.c are all passing Signed-off-by: Noah Goldstein <goldstein.w.n@gmail.com> Reviewed-by: H.J. Lu <hjl.tools@gmail.com>		2021-06-24 19:14:19 -04:00
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aarch64
alpha
arc
arm
csky
generic	posix: Consolidate fork implementation	2021-06-24 10:02:06 -03:00
gnu
hppa
htl	Consolidate pthread_atfork	2021-06-24 10:04:41 -03:00
hurd
i386
ia64
ieee754
m68k
mach	posix: Consolidate fork implementation	2021-06-24 10:02:06 -03:00
microblaze
mips
nios2
nptl	Consolidate pthread_atfork	2021-06-24 10:04:41 -03:00
posix
powerpc
pthread	Consolidate pthread_atfork	2021-06-24 10:04:41 -03:00
riscv
s390
sh
sparc
unix	posix: Consolidate fork implementation	2021-06-24 10:02:06 -03:00
wordsize-32
wordsize-64
x86
x86_64	x86: Remove unnecessary overflow check from wcsnlen-sse4_1.S	2021-06-24 19:14:19 -04:00