On Wed, 7 Sep 2011, Charles Henry wrote:
On Wed, Sep 7, 2011 at 7:59 PM, Mathieu Bouchard matju@artengine.ca wrote:
On Wed, 7 Sep 2011, Mathieu Bouchard wrote:
On Wed, 7 Sep 2011, Bill Gribble wrote:
So far iteration on plain floats seems to be the best I can come up with, but HADDPS is tantalizingly close to what I want to do. Any hints?
Sorry, what's HADDPS?
http://www.rz.uni-karlsruhe.de/rz/docs/VTune/reference/HADDPS--Packed_Single...
This is really interesting. Your compiler probably knows how to optimize this kind of information.
How can you tell that ? I bet it doesn't...
What could it be doing about a scan like this, anyway ?
btw, has anyone looked at the «restrict» keyword yet ?
| Mathieu Bouchard ---- tél: +1.514.383.3801 ---- Villeray, Montréal, QC