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S390: Add z13 memmem ifunc variant.

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The new vector variant of memmem is using the common code
implementation, but instead of calling the default
mem* functions, the vector variants are called.

ChangeLog:

	* sysdeps/s390/Makefile (sysdep_routines): Add memmem variants.
	* sysdeps/s390/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Add ifunc variants for memmem.
	* sysdeps/s390/ifunc-memmem.h: New file.
	* sysdeps/s390/memmem.c: Likewise.
	* sysdeps/s390/memmem-c.c: Likewise.
	* sysdeps/s390/memmem-vx.c: Likewise.
This commit is contained in:
Stefan Liebler
2018-12-18 13:57:09 +01:00
parent 8c25dddd2e
commit d2c4c403fe
7 changed files with 228 additions and 1 deletions
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13
sysdeps/s390/multiarch/ifunc-impl-list.c
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@@ -25,6 +25,7 @@
#include <ifunc-memcmp.h>
#include <ifunc-memcpy.h>
#include <ifunc-strstr.h>
#include <ifunc-memmem.h>
/* Maximum number of IFUNC implementations. */
#define MAX_IFUNC 3
@@ -151,6 +152,18 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
)
#endif /* HAVE_STRSTR_IFUNC */
#if HAVE_MEMMEM_IFUNC
IFUNC_IMPL (i, name, memmem,
# if HAVE_MEMMEM_Z13
IFUNC_IMPL_ADD (array, i, memmem,
dl_hwcap & HWCAP_S390_VX, MEMMEM_Z13)
# endif
# if HAVE_MEMMEM_C
IFUNC_IMPL_ADD (array, i, memmem, 1, MEMMEM_C)
# endif
)
#endif /* HAVE_MEMMEM_IFUNC */
#ifdef HAVE_S390_VX_ASM_SUPPORT
# define IFUNC_VX_IMPL(FUNC) \