From ab6a873fe07b8ded403bc5a5ca73be5d04820d61 Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Thu, 2 Jul 2009 03:39:03 -0700 Subject: SSSE3 strcpy/stpcpy for x86-64 This patch adds SSSE3 strcpy/stpcpy. I got up to 4X speed up on Core 2 and Core i7. I disabled it on Atom since SSSE3 version is slower for shorter (<64byte) data. --- string/stpncpy.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) (limited to 'string/stpncpy.c') diff --git a/string/stpncpy.c b/string/stpncpy.c index 164d0f1747..2ebab33d8a 100644 --- a/string/stpncpy.c +++ b/string/stpncpy.c @@ -28,17 +28,19 @@ # include #endif -#ifndef weak_alias -# define __stpncpy stpncpy +#ifndef STPNCPY +# ifdef weak_alias +# define STPNCPY __stpncpy +weak_alias (__stpncpy, stpncpy) +# else +# define STPNCPY stpncpy +# endif #endif /* Copy no more than N characters of SRC to DEST, returning the address of the terminating '\0' in DEST, if any, or else DEST + N. */ char * -__stpncpy (dest, src, n) - char *dest; - const char *src; - size_t n; +STPNCPY (char *dest, const char *src, size_t n) { char c; char *s = dest; @@ -96,5 +98,4 @@ __stpncpy (dest, src, n) } #ifdef weak_alias libc_hidden_def (__stpncpy) -weak_alias (__stpncpy, stpncpy) #endif -- cgit v1.2.3