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[Bug tree-optimization/68083] [6 Regression] wrong code at -O3 on x86_64-linux-gnu
- From: "aoliva at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 30 Oct 2015 13:15:57 +0000
- Subject: [Bug tree-optimization/68083] [6 Regression] wrong code at -O3 on x86_64-linux-gnu
- Auto-submitted: auto-generated
- References: <bug-68083-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68083
Alexandre Oliva <aoliva at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |aoliva at gcc dot gnu.org
--- Comment #6 from Alexandre Oliva <aoliva at gcc dot gnu.org> ---
Created attachment 36622
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36622&action=edit
Patch I'm testing to fix the problem
This patch stops ifcombine from introducing this kind of undefined behavior.
I'm testing it now, and I'll post it to the list if that completes
successfully.