Generate constraints only once in intra_create_variable_infos

2015-10-28  Tom de Vries  <tom@codesourcery.com>

	* tree-ssa-structalias.c (intra_create_variable_infos): Don't iterate
	into vi_next of a full_var.

From-SVN: r229490

gcc/ChangeLog

 2015-10-28  Tom de Vries  <tom@codesourcery.com>
 
+	* tree-ssa-structalias.c (intra_create_variable_infos): Don't iterate
+	into vi_next of a full_var.
+
+2015-10-28  Tom de Vries  <tom@codesourcery.com>
+
 	* tree-ssa-structalias.c (new_var_info, make_heapvar)
 	(make_constraint_from_restrict, make_constraint_from_global_restrict)
 	(create_function_info_for, create_variable_info_for_1)

gcc/tree-ssa-structalias.c

@@ -5925,6 +5925,8 @@ intra_create_variable_infos (struct function *fn)
 		make_constraint_from_global_restrict (p, "PARM_RESTRICT", true);
 	      else if (p->may_have_pointers)
 		make_constraint_from (p, nonlocal_id);
+	      if (p->is_full_var)
+		break;
 	    }
 	}
     }