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[Bug target/30315] optimize unsigned-add overflow test on x86 to use cpu flags from addl
- From: "ubizjak at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 6 Jun 2007 13:00:13 -0000
- Subject: [Bug target/30315] optimize unsigned-add overflow test on x86 to use cpu flags from addl
- References: <bug-30315-11337@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #5 from ubizjak at gmail dot com 2007-06-06 13:00 -------
(In reply to comment #4)
> I see no reason the i386 back end can't be improved in a similiar fashion.
Interesting...
I agree that this bugreport can be an enhancement request for the code you
provided. We can perhaps operate in just introduced CCCmode, but it looks a lot
of added functionality to cover this corner case. I'll try to code something.
--
ubizjak at gmail dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |UNCONFIRMED
Resolution|INVALID |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30315