| Jakub Kuderski | 638c085 | 2017-08-15 18:14:57 +0000 | [diff] [blame] | 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 | |
| 6 | define void @fn1() { |
| 7 | entry: |
| 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 | |
| 13 | if.then: ; preds = %entry |
| 14 | br label %loop |
| 15 | |
| 16 | loop: ; preds = %loop, %if.then |
| 17 | br label %loop |
| 18 | |
| 19 | if.end: ; preds = %entry |
| 20 | store i32 6, i32* @a, align 4 |
| 21 | ret void |
| 22 | } |
| 23 | |
| 24 | declare 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 |