http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58479
Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2013-09-19 CC| |mpolacek at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> --- Confirmed (with checking enabled). It's VTA: with -fno-var-tracking the slowdown goes away.