commit 8fada217b14b6cb1c1ee832f8503f995c0cec0ce
author Nigel Tao <nigeltao@golang.org> Thu Sep 24 13:03:04 2015 +1000
committer Nigel Tao <nigeltao@golang.org> Thu Sep 24 03:47:18 2015 +0000
tree 5e693d51cecb25e31938e2128ba911ea11ef18eb
parent 82ea2f5ebe572d6eafdc38d45433bc7c68b2dc17

shiny/driver/internal/swizzle: detect SSSE3 capable CPUs.

Benchmark numbers for the various implementations, on my amd64 machine:
BenchmarkBGRA-8             3000        498914 ns/op // bgra16
BenchmarkBGRA-8             1000       1702449 ns/op // bgra4
BenchmarkBGRA-8              500       3396861 ns/op // pure Go

Fixes golang/go#12714

Change-Id: I5570b0daeaae431c6beecd6e0ab832e7bc2c11ec
Reviewed-on: https://go-review.googlesource.com/14931
Reviewed-by: Aaron Jacobs <jacobsa@google.com>
Reviewed-by: Nigel Tao <nigeltao@golang.org>