re PR fortran/69603 (ICE: segfault with -fimplicit-none and proc_ptr_comp_24.f90)

2016-05-15  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/69603
	* interface.c (compare_parameter): Check for non-NULL pointer.

2016-05-15  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/69603
	* gfortran.dg/pr69603.f90: New testcase.

From-SVN: r236253

gcc/fortran/ChangeLog

+2016-05-15  Harald Anlauf  <anlauf@gmx.de>
+
+	PR fortran/69603
+	* interface.c (compare_parameter): Check for non-NULL pointer.
+
 2016-05-14  Fritz Reese  <fritzoreese@gmail.com>
 
 	* gfortran.texi: Update example of DEC UNION extension.

gcc/fortran/interface.c

@@ -2113,7 +2113,7 @@ compare_parameter (gfc_symbol *formal, gfc_expr *actual,
     }
 
   ppc = gfc_get_proc_ptr_comp (actual);
-  if (ppc)
+  if (ppc && ppc->ts.interface)
     {
       if (!gfc_compare_interfaces (formal, ppc->ts.interface, ppc->name, 0, 1,
 				   err, sizeof(err), NULL, NULL))

gcc/testsuite/ChangeLog

+2016-05-15  Harald Anlauf  <anlauf@gmx.de>
+
+	PR fortran/69603
+	* gfortran.dg/pr69603.f90: New testcase.
+
 2016-05-14  Fritz Reese  <fritzoreese@gmail.com>
 
 	* gfortran.dg/dec_union_4.f90: Fix endian issue.

gcc/testsuite/gfortran.dg/pr69603.f90

+! { dg-do compile }
+! { dg-options "-fimplicit-none" }
+! PR fortran/69603 - segfault with -fimplicit-none and proc_ptr_comp_24.f90
+! Based on reduced testcase by Dominique d'Humieres
+PROGRAM prog
+  implicit none
+  TYPE object
+     PROCEDURE(), POINTER, NOPASS :: f
+  END TYPE object
+  TYPE (object) :: o1
+  CALL set_func(o1%f)
+CONTAINS
+  SUBROUTINE set_func(f)
+    PROCEDURE(), POINTER :: f
+  END SUBROUTINE set_func
+END PROGRAM prog