re PR fortran/58652 (ICE with move_alloc and unlimited polymorphic)

2013-10-16  Tobias Burnus  <burnus@net-b.de>

        PR fortran/58652
        * interface.c (compare_parameter): Accept passing CLASS(*)
        to CLASS(*).

2013-10-16  Tobias Burnus  <burnus@net-b.de>

        PR fortran/58652
        * gfortran.dg/unlimited_polymorphic_12.f90: New.

From-SVN: r203720

gcc/fortran/ChangeLog

 2013-10-16  Tobias Burnus  <burnus@net-b.de>
 
+	PR fortran/58652
+	* interface.c (compare_parameter): Accept passing CLASS(*)
+	to CLASS(*).
+
+2013-10-16  Tobias Burnus  <burnus@net-b.de>
+
 	* intrinsic.texi (OpenMP Modules): Update to OpenMPv4.
 	Document omp_proc_bind_kind.
 

gcc/fortran/interface.c

@@ -1990,8 +1990,9 @@ compare_parameter (gfc_symbol *formal, gfc_expr *actual,
       if (!gfc_expr_attr (actual).class_ok)
 	return 0;
 
-      if (!gfc_compare_derived_types (CLASS_DATA (actual)->ts.u.derived,
-				      CLASS_DATA (formal)->ts.u.derived))
+      if ((!UNLIMITED_POLY (formal) || !UNLIMITED_POLY(actual))
+	  && !gfc_compare_derived_types (CLASS_DATA (actual)->ts.u.derived,
+					 CLASS_DATA (formal)->ts.u.derived))
 	{
 	  if (where)
 	    gfc_error ("Actual argument to '%s' at %L must have the same "

gcc/testsuite/ChangeLog

+2013-10-16  Tobias Burnus  <burnus@net-b.de>
+
+	PR fortran/58652
+	* gfortran.dg/unlimited_polymorphic_12.f90: New.
+
 2013-10-16  Thomas Schwinge  <thomas@codesourcery.com>
 
 	* c-c++-common/cpp/openmp-define-1.c: Move

gcc/testsuite/gfortran.dg/unlimited_polymorphic_12.f90

+! { dg-do compile }
+!
+! PR fortran/58652
+!
+! Contributed by Vladimir Fuka
+!
+! The passing of a CLASS(*) to a CLASS(*) was reject before
+!
+module gen_lists
+  type list_node
+    class(*),allocatable :: item
+    contains
+      procedure :: move_alloc => list_move_alloc
+  end type
+
+  contains
+
+    subroutine list_move_alloc(self,item)
+      class(list_node),intent(inout) :: self
+      class(*),intent(inout),allocatable :: item
+
+      call move_alloc(item, self%item)
+    end subroutine
+end module
+
+module lists
+  use gen_lists, only: node => list_node
+end module lists
+
+
+module sexp
+  use lists
+contains
+ subroutine parse(ast)
+    class(*), allocatable, intent(out) :: ast
+    class(*), allocatable :: expr
+    integer :: ierr
+    allocate(node::ast)
+    select type (ast)
+      type is (node)
+        call ast%move_alloc(expr)
+    end select
+  end subroutine
+end module