re PR fortran/50401 (SIGSEGV in resolve_transfer)

2011-09-15  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/50401
	* resolve.c (resolve_transfer): Check if component 'ref' is defined.

	PR fortran/50403
	* symbol.c (gfc_use_derived): Check if argument 'sym' is defined.


2011-09-15  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/50401
	PR fortran/50403
	* gfortran.dg/function_types_3.f90: New.

From-SVN: r178889

gcc/fortran/ChangeLog

+2011-09-15  Janus Weil  <janus@gcc.gnu.org>
+
+	PR fortran/50401
+	* resolve.c (resolve_transfer): Check if component 'ref' is defined.
+
+	PR fortran/50403
+	* symbol.c (gfc_use_derived): Check if argument 'sym' is defined.
+
 2011-09-14  Tobias Burnus  <burnus@net-b.de>
 
 	PR fortran/34547

gcc/fortran/resolve.c

@@ -8222,7 +8222,7 @@ resolve_transfer (gfc_code *code)
 	}
     }
 
-  if (sym->as != NULL && sym->as->type == AS_ASSUMED_SIZE
+  if (sym->as != NULL && sym->as->type == AS_ASSUMED_SIZE && exp->ref
       && exp->ref->type == REF_ARRAY && exp->ref->u.ar.type == AR_FULL)
     {
       gfc_error ("Data transfer element at %L cannot be a full reference to "

gcc/fortran/symbol.c

@@ -1945,6 +1945,8 @@ gfc_use_derived (gfc_symbol *sym)
   gfc_symtree *st;
   int i;
 
+  if (!sym) return NULL;
+
   if (sym->components != NULL || sym->attr.zero_comp)
     return sym;               /* Already defined.  */
 

gcc/testsuite/ChangeLog

+2011-09-15  Janus Weil  <janus@gcc.gnu.org>
+
+	PR fortran/50401
+	PR fortran/50403
+	* gfortran.dg/function_types_3.f90: New.
+
 2011-09-15  Jason Merrill  <jason@redhat.com>
 
 	PR c++/50365

gcc/testsuite/gfortran.dg/function_types_3.f90

+! { dg-do compile }
+!
+! Contributed by Vittorio Zecca <zeccav@gmail.com>
+!
+! PR 50401: SIGSEGV in resolve_transfer
+
+  interface 
+    function f()      ! { dg-error "must be a dummy argument" }
+      dimension f(*)
+    end function
+  end interface
+  print *,f()
+end
+
+! PR 50403: SIGSEGV in gfc_use_derived
+
+type(f) function f()  ! { dg-error "conflicts with DERIVED attribute|is not accessible" }
+  f=110               ! { dg-error "Unclassifiable statement" }
+end