1 ; RUN: opt < %s -instcombine -S | grep "phi i32" | count 2
3 define void @test() nounwind {
7 bb: ; preds = %bb16, %entry
8 %i.0 = phi i32 [ 0, %entry ], [ %indvar.next, %somebb ] ; <i32> [#uses=1]
9 %x.0 = phi i32 [ 37, %entry ], [ %tmp17, %somebb ] ; <i32> [#uses=1]
10 %tmp = tail call i32 (...) @bork( ) nounwind ; <i32> [#uses=0]
11 %tmp1 = tail call i32 (...) @bork( ) nounwind ; <i32> [#uses=0]
12 %tmp2 = tail call i32 (...) @bork( ) nounwind ; <i32> [#uses=1]
13 %tmp3 = icmp eq i32 %tmp2, 0 ; <i1> [#uses=1]
14 br i1 %tmp3, label %bb7, label %bb5
17 %tmp6 = tail call i32 (...) @bork( ) nounwind ; <i32> [#uses=0]
20 bb7: ; preds = %bb5, %bb
21 %tmp8 = tail call i32 (...) @bork( ) nounwind ; <i32> [#uses=0]
22 %tmp9 = tail call i32 (...) @bork( ) nounwind ; <i32> [#uses=0]
23 %tmp11 = icmp eq i32 %x.0, 37 ; <i1> [#uses=1]
24 br i1 %tmp11, label %bb14, label %bb16
27 %tmp15 = tail call i32 (...) @bar( ) nounwind ; <i32> [#uses=0]
30 bb16: ; preds = %bb14, %bb7
31 %tmp17 = tail call i32 (...) @zap( ) nounwind ; <i32> [#uses=1]
32 %indvar.next = add i32 %i.0, 1 ; <i32> [#uses=2]
33 %exitcond = icmp eq i32 %indvar.next, 42 ; <i1> [#uses=1]
34 br i1 %exitcond, label %return, label %somebb
39 return: ; preds = %bb16
43 declare i32 @bork(...)