[Bug c++/59813] tail-call elimination didn't fire for left-shift of char to cout

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59813

--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Ah, seems it is libgcc_s.so.1 rather than libstdc++.  Bisecting.