Add missing external function implementations

ir/ir/irprog.c

@@ -493,6 +493,18 @@ ident *get_irp_asm(size_t pos)
 	return irp->global_asms[pos];
 }
 
+/** Return whether optimization dump vcg graphs */
+int (get_irp_optimization_dumps)(void)
+{
+	return get_irp_optimization_dumps_();
+}
+
+/** Enable vcg dumping of optimization */
+void (enable_irp_optimization_dumps)(void)
+{
+	enable_irp_optimization_dumps_();
+}
+
 #ifndef NDEBUG
 void irp_reserve_resources(ir_prog *irp, irp_resources_t resources)
 {