1; This function contains two tail calls, which should be eliminated
2; RUN: opt < %s -tailcallelim -stats -disable-output |& grep {2 tailcallelim}
3
4define i32 @Ack(i32 %M.1, i32 %N.1) {
5entry:
6	%tmp.1 = icmp eq i32 %M.1, 0		; <i1> [#uses=1]
7	br i1 %tmp.1, label %then.0, label %endif.0
8then.0:		; preds = %entry
9	%tmp.4 = add i32 %N.1, 1		; <i32> [#uses=1]
10	ret i32 %tmp.4
11endif.0:		; preds = %entry
12	%tmp.6 = icmp eq i32 %N.1, 0		; <i1> [#uses=1]
13	br i1 %tmp.6, label %then.1, label %endif.1
14then.1:		; preds = %endif.0
15	%tmp.10 = add i32 %M.1, -1		; <i32> [#uses=1]
16	%tmp.8 = call i32 @Ack( i32 %tmp.10, i32 1 )		; <i32> [#uses=1]
17	ret i32 %tmp.8
18endif.1:		; preds = %endif.0
19	%tmp.13 = add i32 %M.1, -1		; <i32> [#uses=1]
20	%tmp.17 = add i32 %N.1, -1		; <i32> [#uses=1]
21	%tmp.14 = call i32 @Ack( i32 %M.1, i32 %tmp.17 )		; <i32> [#uses=1]
22	%tmp.11 = call i32 @Ack( i32 %tmp.13, i32 %tmp.14 )		; <i32> [#uses=1]
23	ret i32 %tmp.11
24}
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