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math: ARM assembly implementation for Abs
authorShenghou Ma <minux.ma@gmail.com>
Mon, 23 Apr 2012 15:47:36 +0000 (23:47 +0800)
committerShenghou Ma <minux.ma@gmail.com>
Mon, 23 Apr 2012 15:47:36 +0000 (23:47 +0800)
commite7e7b1c55ce7d73812caff018d02545f8f5740aa
tree4985ec687d634067ada6111cbcd678caa477b309tree
parenta8098cbcfd7772911f761e787f656f6e685c105ecommit | diff
math: ARM assembly implementation for Abs

Obtained on 700MHz OMAP4460:
benchmark       old ns/op    new ns/op    delta
BenchmarkAbs           61           23  -61.63%

R=dave, remyoudompheng, mtj, rsc
CC=golang-dev
https://golang.org/cl/6094047
src/pkg/math/abs_arm.s diff | blob | history
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