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S390: Optimize strcat and wcscat.

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This patch provides optimized versions of strcat and wcscat with the z13
vector instructions.

ChangeLog:

	* sysdeps/s390/multiarch/strcat-c.c: New File.
	* sysdeps/s390/multiarch/strcat-vx.S: Likewise.
	* sysdeps/s390/multiarch/strcat.c: Likewise.
	* sysdeps/s390/multiarch/wcscat-c.c: Likewise.
	* sysdeps/s390/multiarch/wcscat-vx.S: Likewise.
	* sysdeps/s390/multiarch/wcscat.c: Likewise.
	* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strcat and
	wcscat functions.
	* sysdeps/s390/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Add ifunc test for strcat, wcscat.
	* string/strcat.c (STRCAT): Define and use macro.
	* wcsmbs/wcscat.c: Use WCSCAT if defined.
	* string/test-strcat.c: Add wcscat support.
	* wcsmbs/test-wcscat.c: New File.
	* wcsmbs/Makefile (strop-tests): Add wcscat.
	* benchtests/bench-strcat.c: Add wcscat support.
	* benchtests/bench-wcscat.c: New File.
	* benchtests/Makefile (wcsmbs-bench): Add wcscat.
This commit is contained in:
Stefan Liebler
2015-08-26 10:26:21 +02:00
committed by Andreas Krebbel
parent b3a0c176d1
commit d626a24f23
17 changed files with 659 additions and 80 deletions
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6
string/strcat.c
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@ -19,9 +19,13 @@
#undef strcat
#ifndef STRCAT
# define STRCAT strcat
#endif
/* Append SRC on the end of DEST. */
char *
strcat (char *dest, const char *src)
STRCAT (char *dest, const char *src)
{
strcpy (dest + strlen (dest), src);
return dest;