On Mon, Jun 11, 2012 at 7:40 AM, Richard Guenther <rguent...@suse.de> wrote:
> Hmm. I don't like this patch or its general idea too much. Instead > I'd like us to move more of the cost model detail to the target, giving > it a chance to look at the whole loop before deciding on a cost. ISTR > posting the overall idea at some point, but let me repeat it here instead > of trying to find that e-mail. Richard, Allowing the target to see the entire loop and have more control over the cost model is a fine goal, but the current code is using incorrect heuristics. Requiring a complete re-write of the auto-vectorizer cost model should not be a requirement for fixing the current code. Thanks, David
