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[Bug tree-optimization/26406] Fowardprop does harm for VRP to figure out if a point is non zero
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 22 Feb 2006 12:49:08 -0000
- Subject: [Bug tree-optimization/26406] Fowardprop 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 #6 from rguenth at gcc dot gnu dot org 2006-02-22 12:49 -------
Created an attachment (id=10891)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=10891&action=view)
patch restricting forwprop
Patch that apart from regressing gcc.dg/tree-ssa/20030807-2.c bootstrapped and
tested ok.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26406