1; RUN: opt < %s -postdomtree -analyze | FileCheck %s
2; RUN: opt < %s -passes='print<postdomtree>' 2>&1 | FileCheck %s
3
4@a = external global i32, align 4
5
6define void @fn1() {
7entry:
8  store i32 5, i32* @a, align 4
9  %call = call i32 (...) @foo()
10  %tobool = icmp ne i32 %call, 0
11  br i1 %tobool, label %if.then, label %if.end
12
13if.then:                                          ; preds = %entry
14  br label %loop
15
16loop:                                             ; preds = %loop, %if.then
17  br label %loop
18
19if.end:                                           ; preds = %entry
20  store i32 6, i32* @a, align 4
21  ret void
22}
23
24declare i32 @foo(...)
25
26; CHECK:      Inorder PostDominator Tree:
27; CHECK-NEXT:  [1]  <<exit node>>
28; CHECK:         [2] %loop
29; CHECK-NEXT:      [3] %if.then
30; CHECK: Roots: %if.end %loop
31