| ; RUN: opt < %s -postdomtree -analyze | FileCheck %s | |
| ; RUN: opt < %s -passes='print<postdomtree>' 2>&1 | FileCheck %s | |
| @a = external global i32, align 4 | |
| define void @fn1() { | |
| entry: | |
| store i32 5, i32* @a, align 4 | |
| %call = call i32 (...) @foo() | |
| %tobool = icmp ne i32 %call, 0 | |
| br i1 %tobool, label %if.then, label %if.end | |
| if.then: ; preds = %entry, %loop | |
| br label %loop | |
| loop: ; preds = %loop, %if.then | |
| %0 = load i32, i32* @a, align 4 | |
| call void @bar(i32 %0) | |
| br i1 true, label %loop, label %if.then | |
| if.end: ; preds = %entry | |
| store i32 6, i32* @a, align 4 | |
| ret void | |
| } | |
| declare i32 @foo(...) | |
| declare void @bar(i32) | |
| ; CHECK: Inorder PostDominator Tree: | |
| ; CHECK-NEXT: [1] <<exit node>> | |
| ; CHECK: [2] %loop | |
| ; CHECK-NEXT: [3] %if.then | |
| ; CHECK: Roots: %if.end %loop |