[Bug ipa/97757] [11 Regression] fortran save_6.f90 fails with a segv for -flto -O >= 2

[hubicka at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97757

--- Comment #3 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
This is problem with propagate_in_scc sometimes freeing the summary and losing
track of it.  It is fixed in
https://gcc.gnu.org/pipermail/gcc-patches/2020-November/559116.html