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The ifunc handling for wcsrchr is adjusted in order to omit ifunc
if the minimum architecture level already supports newer CPUs by default.
Unfortunately the c ifunc variant can't be omitted at all as it is used
by the z13 ifunc variant as fallback if the pointers are not 4-byte aligned.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove wcsrchr variants.
* sysdeps/s390/Makefile (sysdep_routines): Add wcsrchr variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for wcsrchr.
* sysdeps/s390/multiarch/wcsrchr-c.c: Move to ...
* sysdeps/s390/wcsrchr-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcsrchr-vx.S: Move to ...
* sysdeps/s390/wcsrchr-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wcsrchr.c: Move to ...
* sysdeps/s390/wcsrchr.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-wcsrchr.h: New file.
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* All files with FSF copyright notices: Update copyright dates
using scripts/update-copyrights.
* locale/programs/charmap-kw.h: Regenerated.
* locale/programs/locfile-kw.h: Likewise.
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This patch provides optimized versions of strrchr and wcsrchr with the z13
vector instructions.
ChangeLog:
* sysdeps/s390/multiarch/strrchr-c.c: New File.
* sysdeps/s390/multiarch/strrchr-vx.S: Likewise.
* sysdeps/s390/multiarch/strrchr.c: Likewise.
* sysdeps/s390/multiarch/wcsrchr-c.c: Likewise.
* sysdeps/s390/multiarch/wcsrchr-vx.S: Likewise.
* sysdeps/s390/multiarch/wcsrchr.c: Likewise.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strrchr and
wcsrchr functions.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc test for strrchr, wcsrchr.
* benchtests/bench-wcsrchr.c: New File.
* benchtests/Makefile (wcsmbs-bench): Add wcsrchr.
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