powerpc: st{r,p}cpy optimization for aligned strings

This patch makes use of vectors for aligned inputs.  Improvements
upto 30% seen for larger aligned inputs.

Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 99792bfac3..a993af3ecb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2017-12-15  Rajalakshmi Srinivasaraghavan  <raji@linux.vnet.ibm.com>
+
+	* sysdeps/powerpc/powerpc64/power8/strcpy.S: Use vectors
+	for aligned inputs.
+
 2017-12-14  Siddhesh Poyarekar  <siddhesh@sourceware.org>
 
 	* benchtests/bench-strcmp.c: Print output in JSON format.