|  | ; RUN: opt < %s -licm -disable-output | 
|  | %struct.roadlet = type { i8*, %struct.vehicle*, [8 x %struct.roadlet*], [8 x %struct.roadlet* (%struct.roadlet*, %struct.vehicle*, i32)*] } | 
|  | %struct.vehicle = type { %struct.roadlet*, i8*, i32, i32, %union.._631., i32 } | 
|  | %union.._631. = type { i32 } | 
|  |  | 
|  | declare %struct.roadlet* @_Z11return_nullP7roadletP7vehicle9direction(%struct.roadlet*, %struct.vehicle*, i32) | 
|  |  | 
|  | declare %struct.roadlet* @_Z14lane_switch_okP7roadletP7vehicle9direction(%struct.roadlet*, %struct.vehicle*, i32) | 
|  |  | 
|  | define void @main() { | 
|  | __main.entry: | 
|  | br label %invoke_cont.3 | 
|  | invoke_cont.3:		; preds = %invoke_cont.3, %__main.entry | 
|  | %tmp.34.i.i502.7 = getelementptr %struct.roadlet, %struct.roadlet* null, i32 0, i32 3, i32 7		; <%struct.roadlet* (%struct.roadlet*, %struct.vehicle*, i32)**> [#uses=1] | 
|  | store %struct.roadlet* (%struct.roadlet*, %struct.vehicle*, i32)* @_Z11return_nullP7roadletP7vehicle9direction, %struct.roadlet* (%struct.roadlet*, %struct.vehicle*, i32)** %tmp.34.i.i502.7 | 
|  | store %struct.roadlet* (%struct.roadlet*, %struct.vehicle*, i32)* @_Z14lane_switch_okP7roadletP7vehicle9direction, %struct.roadlet* (%struct.roadlet*, %struct.vehicle*, i32)** null | 
|  | %tmp.4.i.i339 = getelementptr %struct.roadlet, %struct.roadlet* null, i32 0, i32 3, i32 undef		; <%struct.roadlet* (%struct.roadlet*, %struct.vehicle*, i32)**> [#uses=1] | 
|  | store %struct.roadlet* (%struct.roadlet*, %struct.vehicle*, i32)* @_Z11return_nullP7roadletP7vehicle9direction, %struct.roadlet* (%struct.roadlet*, %struct.vehicle*, i32)** %tmp.4.i.i339 | 
|  | br label %invoke_cont.3 | 
|  | } |