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authorAdhemerval Zanella <azanella@linux.vnet.ibm.com>2014-03-20 11:24:52 -0500
committerAdhemerval Zanella <azanella@linux.vnet.ibm.com>2014-03-20 11:24:52 -0500
commit6eaf95cbfa0031ea267682dc2c9c17ed3e3dc167 (patch)
tree93cf4f0efb9ce1654e9f298b6342953a7935965a /Makefile
parentae3a5dff0f4135cc57ddddf3c19ed5be80285b54 (diff)
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PowerPC: optimized strcspn for PPC64/POWER7
This patch add a optimized strcspn for POWER7 by using a different algorithm than default implementation: it constructs a table based on the 'accept' argument and use this table to check for any occurance on the input string. The idea is similar as x86_64 uses. For PowerPC some tunings were added, such as unroll loops and align stack memory to table to 16 bytes (so VSX clean can ran without alignment issues).
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