1 ; This function contains two tail calls, which should be eliminated
2 ; RUN: llvm-upgrade < %s | llvm-as | \
3 ; RUN: opt -tailcallelim -stats -disable-output |& grep {2 tailcallelim}
5 int %Ack(int %M.1, int %N.1) {
7 %tmp.1 = seteq int %M.1, 0 ; <bool> [#uses=1]
8 br bool %tmp.1, label %then.0, label %endif.0
11 %tmp.4 = add int %N.1, 1 ; <int> [#uses=1]
15 %tmp.6 = seteq int %N.1, 0 ; <bool> [#uses=1]
16 br bool %tmp.6, label %then.1, label %endif.1
19 %tmp.10 = add int %M.1, -1 ; <int> [#uses=1]
20 %tmp.8 = call int %Ack( int %tmp.10, int 1 ) ; <int> [#uses=1]
24 %tmp.13 = add int %M.1, -1 ; <int> [#uses=1]
25 %tmp.17 = add int %N.1, -1 ; <int> [#uses=1]
26 %tmp.14 = call int %Ack( int %M.1, int %tmp.17 ) ; <int> [#uses=1]
27 %tmp.11 = call int %Ack( int %tmp.13, int %tmp.14 ) ; <int> [#uses=1]