1; RUN: opt -S < %s -jump-threading | FileCheck %s
2
3; PR40992: Do not incorrectly fold %bb5 into an unconditional br to %bb7.
4;          Also verify we correctly thread %bb1 -> %bb7 when %c is false.
5
6define i32 @jtbr(i1 %v1, i1 %v2, i1 %v3) {
7; CHECK: bb0:
8bb0:
9  br label %bb1
10
11; CHECK: bb1:
12; CHECK-NEXT: and
13; CHECK-NEXT: br i1 %c, label %bb2, label %bb7
14bb1:
15  %c = and i1 %v1, %v2
16  br i1 %c, label %bb2, label %bb5
17
18; CHECK: bb2:
19; CHECK-NEXT: select
20; CHECK-NEXT: indirectbr i8* %ba, [label %bb3, label %bb5]
21bb2:
22  %ba = select i1 %v3, i8* blockaddress(@jtbr, %bb3), i8* blockaddress(@jtbr, %bb4)
23  indirectbr i8* %ba, [label %bb3, label %bb4]
24
25; CHECK: bb3:
26bb3:
27  br label %bb1
28
29; CHECK-NOT: bb4:
30bb4:
31  br label %bb5
32
33; CHECK: bb5:
34bb5:
35  br i1 %c, label %bb6, label %bb7
36
37; CHECK: bb6:
38bb6:
39  ret i32 0
40
41; CHECK: bb7:
42bb7:
43  ret i32 1
44}
45