[Bug fortran/69368] [6 Regression] spec2006 test case 416.gamess fails with the g++ 6.0 compiler starting with r232508

[wdijkstr at arm dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69368

--- Comment #41 from Wilco <wdijkstr at arm dot com> ---
(In reply to Jerry DeLisle from comment #40)
> Do you have a reduced test case of the Fortran code we can look at?

See comment 13/14, the same common array is declared with different sizes in
various places.

> I am concerned that you are changing things to accommodate invalid Fortran. 
> I don't have 416.gamess to look at.  I do see your suggested patch touches
> the Fortran frontend.

Since SPEC does not want to change the invalid Fortran, GCC will have to
accomodate for it somehow.

> Maybe it needs to be put behind -std=legacy?
> 
> I assume the "(without flag)" means you intend to do something like that?

Yes, but it was suggested that -std=legacy wasn't the right flag in comment
35...