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[Bug tree-optimization/53844] [4.6/4.7 Regression] GCC generates suboptimal code for unused members of classes in some cases on multiple targets.
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 04 Jul 2012 09:34:59 +0000
- Subject: [Bug tree-optimization/53844] [4.6/4.7 Regression] GCC generates suboptimal code for unused members of classes in some cases on multiple targets.
- Auto-submitted: auto-generated
- References: <bug-53844-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53844
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Component|middle-end |tree-optimization
AssignedTo|unassigned at gcc dot |rguenth at gcc dot gnu.org
|gnu.org |
--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-07-04 09:34:59 UTC ---
With the alias-oracle in place DCE can no longer see this (the temporaries
have their address taken). DSE should be able to, but it seems it does not.
Investigating.