I've create a blueprint covering the basic functions in libav that are
implemented as inline assembly:
 
https://blueprints.launchpad.net/gcc-linaro/+spec/investigate-libav-inline-assembly

These are a mix of multiplies, clipping, byte swap, and unaligned
access.  We do OK on half of them but at least byte swap and 32x32 ->
top half of 64 aren't as good as they could be.

Let's discuss the investigation at the next performance meeting.

-- Michael

_______________________________________________
linaro-toolchain mailing list
linaro-toolchain@lists.linaro.org
http://lists.linaro.org/mailman/listinfo/linaro-toolchain

Reply via email to