[Bug fortran/77371] ICE in force_constant_size, at gimplify.c:671 (... and others)

[gerhard.steinmetz.fortran@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77371

--- Comment #1 from Gerhard Steinmetz <gerhard.steinmetz.fortran@t-online.de> ---

$ cat z2.f90
program p
   integer, allocatable :: z
   !$acc parallel
   z = 1
   !$acc end parallel
   print *, z
end


$ gfortran-7-20160821 -fopenacc z2.f90
z2.f90:2:0:

    integer, allocatable :: z

Error: non-trivial conversion at assignment
integer(kind=4)
integer(kind=4) *
z.3 = *D.3442;
z2.f90:2:0: internal compiler error: verify_gimple failed
0xc54e6d verify_gimple_in_seq(gimple*)
        ../../gcc/tree-cfg.c:4879
0xb4a3d0 execute_function_todo
        ../../gcc/passes.c:1966
0xb4ac95 execute_todo
        ../../gcc/passes.c:2014