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[Bug tree-optimization/52267] a&~N where N has all the bits set up till a specific point can be folded to ((unsigned)a) < N
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 09 Mar 2012 17:52:47 +0000
- Subject: [Bug tree-optimization/52267] a&~N where N has all the bits set up till a specific point can be folded to ((unsigned)a) < N
- Auto-submitted: auto-generated
- References: <bug-52267-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52267
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
AssignedTo|unassigned at gcc dot |jakub at gcc dot gnu.org
|gnu.org |
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-03-09 17:52:47 UTC ---
Created attachment 26867
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26867
gcc48-pr52267.patch
Unfinished, WIP, patch. Will continue working on this next week.
On top of the two VRP patches I've posted today to gcc-patches.