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authorWilco Dijkstra <wdijkstr@arm.com>2018-11-20 12:37:00 +0000
committerWilco Dijkstra <wdijkstr@arm.com>2018-11-20 12:37:00 +0000
commit5770c0ad1e0c784e817464ca2cf9436a58c9beb7 (patch)
tree6616d15f2d44823b4c70b0fe607b4c7927fe45ac /README
parent9a62a9397d0a25643922d8d053f04ee895100d9a (diff)
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[AArch64] Adjust writeback in non-zero memset
This fixes an ineffiency in the non-zero memset.  Delaying the writeback
until the end of the loop is slightly faster on some cores - this shows
~5% performance gain on Cortex-A53 when doing large non-zero memsets.

	* sysdeps/aarch64/memset.S (MEMSET): Improve non-zero memset loop.
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