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authorAnton Blanchard <anton@ozlabs.org>2020-05-14 21:49:16 +1000
committerPaul E. Murphy <murphyp@linux.vnet.ibm.com>2020-05-18 17:08:54 -0500
commit765de945efc5d5602999b2999fe8abdf04881370 (patch)
tree8c252731dcf3fc61ae700a5dba120c1eafc8f41f /nss
parent9e38f455a6c602be86b7b5a8d6523cbdcd7ec051 (diff)
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powerpc: Optimized rawmemchr for POWER9
This version uses vector instructions and is up to 60% faster on medium
matches and up to 90% faster on long matches, compared to the POWER7
version. A few examples:

                            __rawmemchr_power9  __rawmemchr_power7
Length   32, alignment  0:   2.27566             3.77765
Length   64, alignment  2:   2.46231             3.51064
Length 1024, alignment  0:  17.3059             32.6678
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