[Bug ipa/60911] [4.9/4.10 Regression] wrong code with -O2 -flto -fipa-pta

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60911

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Anyway, that push/pop_cfun stuff should be pushed to the callbacks, not be
done in do_per_function ().  Likewise the ggc_collect ().

Btw, same code in do_per_function_toporder.