1; RUN: llvm-as < %s | opt -jump-threading -simplifycfg -mem2reg | llvm-dis | grep {ret i32 %v1}
2; There should be no uncond branches left.
3; RUN: llvm-as < %s | opt -jump-threading -simplifycfg -mem2reg | llvm-dis | not grep {br label}
4
5declare i32 @f1()
6declare i32 @f2()
7declare void @f3()
8
9define i32 @test(i1 %cond) {
10	br i1 %cond, label %T1, label %F1
11
12T1:
13	%v1 = call i32 @f1()
14	br label %Merge
15
16F1:
17	%v2 = call i32 @f2()
18	br label %Merge
19
20Merge:
21	%A = phi i1 [true, %T1], [false, %F1]
22	%B = phi i32 [%v1, %T1], [%v2, %F1]
23	br i1 %A, label %T2, label %F2
24
25T2:
26	call void @f3()
27	ret i32 %B
28
29F2:
30	ret i32 %B
31}
32
33
34;; cond is known false on Entry -> F1 edge!
35define i32 @test2(i1 %cond) {
36Entry:
37	br i1 %cond, label %T1, label %F1
38
39T1:
40	%v1 = call i32 @f1()
41	br label %Merge
42
43F1:
44	br i1 %cond, label %Merge, label %F2
45
46Merge:
47	%B = phi i32 [47, %T1], [192, %F1]
48	ret i32 %B
49
50F2:
51	call void @f3()
52	ret i32 12
53}
54