| ; 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 |
| br label %loop |
| |
| loop: ; preds = %loop, %if.then |
| %0 = load i32, i32* @a, align 4 |
| call void @bar(i32 %0) |
| br label %loop |
| |
| 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 |
