On Mon, Jun 11, 2012 at 10:48 AM, Richard Guenther <rguent...@suse.de> wrote: > On Mon, 11 Jun 2012, David Edelsohn wrote: > >> 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. > > If fixing the current code adds more "magic" hooks at the wrong spot > then yes, in stage1 I can make you think about a more proper solution > to the issue.
First, these are not magic hooks. Second, I suggest that you need to rephrase "I can make you" and re-send your reply. Thanks, David
