This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/26406] [4.2 Regression] Forwardprop does harm for VRP to figure out if a point is non zero
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 25 Feb 2006 17:31:37 -0000
- Subject: [Bug tree-optimization/26406] [4.2 Regression] Forwardprop does harm for VRP to figure out if a point is non zero
- References: <bug-26406-6528@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #14 from pinskia at gcc dot gnu dot org 2006-02-25 17:31 -------
Why is forward prop doing this in the first place, this actually causes
increased register pressure for sure, at least for non one use variables?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26406