1; RUN: llc < %s -verify-machineinstrs
2;
3; This test case is transformed into a single basic block by the machine
4; branch folding pass. That makes a complete mess of the %eflags liveness, but
5; we don't care about liveness this late anyway.
6
7target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
8target triple = "x86_64-apple-darwin10.2"
9
10define i32 @main(i32 %argc, i8** nocapture %argv) ssp {
11entry:
12  br i1 undef, label %bb, label %bb2
13
14bb:                                               ; preds = %entry
15  br label %bb2
16
17bb2:                                              ; preds = %bb, %entry
18  br i1 undef, label %bb3, label %bb5
19
20bb3:                                              ; preds = %bb2
21  br label %bb5
22
23bb5:                                              ; preds = %bb3, %bb2
24  br i1 undef, label %bb.nph239, label %bb8
25
26bb.nph239:                                        ; preds = %bb5
27  unreachable
28
29bb8:                                              ; preds = %bb5
30  br i1 undef, label %bb.nph237, label %bb47
31
32bb.nph237:                                        ; preds = %bb8
33  unreachable
34
35bb47:                                             ; preds = %bb8
36  br i1 undef, label %bb49, label %bb48
37
38bb48:                                             ; preds = %bb47
39  unreachable
40
41bb49:                                             ; preds = %bb47
42  br i1 undef, label %bb51, label %bb50
43
44bb50:                                             ; preds = %bb49
45  ret i32 0
46
47bb51:                                             ; preds = %bb49
48  ret i32 0
49}
50