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[Bug tree-optimization/51005] -ftree-tail-merge slows down compilation of 20001226-1.c
- 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: Mon, 07 Nov 2011 11:00:39 +0000
- Subject: [Bug tree-optimization/51005] -ftree-tail-merge slows down compilation of 20001226-1.c
- Auto-submitted: auto-generated
- References: <bug-51005-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51005
--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-11-07 11:00:39 UTC ---
Note that PRE already performs TODO_update_ssa_only_virtuals (well, of course
only if something marked the VOP for renaming which happens whenever it
inserts a load somewhere). So it might indeed be not too bad to do this
(given the amount of code we can delete ...)