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* S390: Optimize memrchr.Stefan Liebler2015-08-261-0/+160
This patch provides optimized version of memrchr with the z13 vector instructions. ChangeLog: * sysdeps/s390/multiarch/memrchr-c.c: New File. * sysdeps/s390/multiarch/memrchr-vx.S: Likewise. * sysdeps/s390/multiarch/memrchr.c: Likewise. * sysdeps/s390/multiarch/Makefile (sysdep_routines): Add memrchr functions. * sysdeps/s390/multiarch/ifunc-impl-list-common.c (__libc_ifunc_impl_list_common): Add ifunc test for memrchr.