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This patch provides optimized version of wmemcmp with the z13 vector
instructions.
ChangeLog:
* sysdeps/s390/multiarch/wmemcmp-c.c: New File.
* sysdeps/s390/multiarch/wmemcmp-vx.S: Likewise.
* sysdeps/s390/multiarch/wmemcmp.c: Likewise.
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Add wmemcmp functions.
* sysdeps/s390/multiarch/ifunc-impl-list-common.c
(__libc_ifunc_impl_list_common): Add ifunc test for wmemcmp.
* benchtests/bench-wmemcmp.c: New File.
* benchtests/Makefile (wcsmbs-bench): Add wmemcmp.
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