[Bug rtl-optimization/59802] excessive compile time in RTL optimizers (loop unswitching, CPROP)

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59802

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Oh, did you configure with --enable-checking=release for 4.9?  (I did)