[Bug fortran/99506] internal compiler error: in record_reference, at cgraphbuild.c:64

[sgk at troutmask dot apl.washington.edu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99506

--- Comment #7 from Steve Kargl <sgk at troutmask dot apl.washington.edu> ---
On Wed, Mar 10, 2021 at 10:22:45PM +0000, anlauf at gcc dot gnu.org wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99506
> 
> --- Comment #6 from anlauf at gcc dot gnu.org ---
> (In reply to Richard Biener from comment #4)
> > I don't know fortran enough for what 'parameter' means in this context:
> > 
> >    real(double),  parameter:: latt(jmax) = [(latt100(i)/100.d0, j=1,jmax)]
> > 
> > but the middle-end sees a readonly global (TREE_STATIC) variable.
> 
> There is a possibly related issue in pr91960.
> 

Yes, same problem.  An uninitialized *variable* is used in
an implied-do loop, which is an ac-value expression.  Perhaps,
resolve.c(resolve_fl_parameter) needs to do some deeper 
checking.