Displaying 2 results from an estimated 2 matches for "0279c84f".
2015 Jul 23
0
[LLVMdev] some superoptimizer results
...ll exploit known
> bits. I'm excited to see what kind of results come out of Philip's
> value-tracking-dom-conditions.
>
> John
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20150722/0279c84f/attachment.html>
2015 Jul 23
4
[LLVMdev] some superoptimizer results
> I just noticed: most of the results in this batch seem to be about exploiting `[zs]ext i1` having cost 1
> in order to replace a select of cost 3.
> Could you do a run where select has cost 1 and [zs]ext i1 (and trunc to i1) has cost 2 or 3?
I tried this (or something quite similar) earlier and it caused Souper to
introduce *a lot* of selects. So the problem is that Souper's