[Bug ipa/101839] [10/11/12/13 Regression] Hang in C++ code with -fdevirtualize

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101839

--- Comment #10 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Created attachment 53430
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53430&action=edit
Patch I am testing