[Bug rtl-optimization/56151] Performance degradation after r194054 on x86 Atom.

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56151

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |steven at gcc dot gnu.org
          Component|tree-optimization           |rtl-optimization

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> 2013-01-30 16:04:03 UTC ---
Steven, that's

 2012-12-02  Steven Bosscher  <steven@gcc.gnu.org>

+       * optabs.c (add_equal_note): Do not create self-referencing REG_EQUAL
+       notes.
+       * fwprop.c (forward_propagate_and_simplify): Likewise.