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[Bug tree-optimization/47258] [4.5/4.6/4.7 Regression] Extra instruction generated in 4.5.2
- From: "pinskia at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 02 Feb 2012 08:38:55 +0000
- Subject: [Bug tree-optimization/47258] [4.5/4.6/4.7 Regression] Extra instruction generated in 4.5.2
- Auto-submitted: auto-generated
- References: <bug-47258-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47258
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Known to work| |4.4.0
URL| |http://gcc.gnu.org/ml/gcc-p
| |atches/2011-11/msg01865.htm
| |l
Keywords| |missed-optimization
Component|rtl-optimization |tree-optimization
Resolution| |FIXED
Summary|Extra instruction generated |[4.5/4.6/4.7 Regression]
|in 4.5.2 |Extra instruction generated
| |in 4.5.2
Target Milestone|--- |4.7.0
Known to fail| |4.5.2, 4.6.0, 4.7.0
--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-02-02 08:38:55 UTC ---
Fixed for 4.7.0 by:
------------------------------------------------------------------------
r181476 | wschmidt | 2011-11-18 06:15:38 -0800 (Fri, 18 Nov 2011) | 6 lines
2011-11-18 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* tree-outof-ssa.c (insert_back_edge_copies): Add call to
mark_dfs_back_edges.