[Bug fortran/122046] [14/15/16 Regression] ICE in is_illegal_recursion when a TBP is used to specify the bounds of a dummy argument

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122046

--- Comment #10 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
(In reply to anlauf from comment #5)
> (In reply to Jerry DeLisle from comment #4)
> > Does this need to be back-ported?
> 
> Judging from comment#2 and the actual patch, fixing the 15-branch may make
> sense.  Not sure if 14-branch is worth the effort/risk.

I will prepare the backport. There already is a test case with the original
patch.