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[Bug fortran/50960] [OOP] vtables not marked as constant


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50960

--- Comment #11 from janus at gcc dot gnu.org 2011-11-02 21:17:11 UTC ---
(In reply to comment #9)
> FAIL: gfortran.dg/extends_type_of_1.f03  -O0  (internal compiler error)
> FAIL: gfortran.dg/extends_type_of_3.f90  -O  (internal compiler error)

These two fail with:

internal compiler error: in fold_convert_loc, at fold-const.c:1894

Not quite sure what goes wrong there. Some typing problem?


Reduced test case:

 type :: t1
 end type

 type, extends(t1) :: t2
 end type

 class(t1), pointer :: c1
 type(t2) :: y

 if (.not. extends_type_of (y, c1)) call abort()

end


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