[Bug fortran/66762] ICE when compiling gfortran.dg/submodule_[16].f90 with -flto

[pault at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66762

--- Comment #10 from Paul Thomas <pault at gcc dot gnu.org> ---
Created attachment 36770
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36770&action=edit
Fix for the PR

The attached patch fixes the problem but is, as yet, not regtested.

Cheers

Paul