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[Bug c++/52241] Performance degradation of 447.dealII on corei7 at spec2006_base32.


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52241

--- Comment #15 from Paolo Carlini <paolo.carlini at oracle dot com> 2012-02-16 15:04:42 UTC ---
Note, if we decide to do this at the level of tree.cc, we should consistently
change _Rb_tree_decrement too.


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