This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/37795] if-combine doesn't optimize != after >= test
- From: "pinskia at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 12 Oct 2008 20:47:59 -0000
- Subject: [Bug tree-optimization/37795] if-combine doesn't optimize != after >= test
- References: <bug-37795-10053@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #5 from pinskia at gmail dot com 2008-10-12 20:47 -------
Subject: Re: if-combine doesn't optimize != after >= test
On Sun, Oct 12, 2008 at 1:40 PM, rguenther at suse dot de
<gcc-bugzilla@gcc.gnu.org> wrote:
> No. ifcombine only combines on the CFG, in PR28685 we are dealing
> with a CFG-less opportunity.
Well it depends really. As on some targets it has a CFG based ||/&&
depending on BRANCH_COST.
Thanks,
Andrew Pinski
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37795