1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -licm -adce -licm -S < %s | FileCheck %s
3; RUN: opt -passes='loop(licm),adce,loop(licm)' -S < %s | FileCheck %s
4;
5
6target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128-ni:1-p2:32:8:8:32-ni:2"
7target triple = "x86_64-unknown-linux-gnu"
8
9define void @test() {
10; CHECK-LABEL: @test(
11; CHECK-NEXT:  bb:
12; CHECK-NEXT:    br label [[BB2:%.*]]
13; CHECK:       bb1:
14; CHECK-NEXT:    ret void
15; CHECK:       bb2:
16; CHECK-NEXT:    br label [[BB4:%.*]]
17; CHECK:       bb3:
18; CHECK-NEXT:    unreachable
19; CHECK:       bb4:
20; CHECK-NEXT:    br i1 true, label [[BB1:%.*]], label [[BB2]]
21;
22
23bb:
24  br label %bb2
25
26bb1:                                              ; preds = %bb4
27  ret void
28
29bb2:                                              ; preds = %bb4, %bb
30  br i1 undef, label %bb4, label %bb3
31
32bb3:                                              ; preds = %bb2
33  br label %bb4
34
35bb4:                                              ; preds = %bb3, %bb2
36  br i1 undef, label %bb1, label %bb2
37}
38