1; RUN: opt -S <%s -simplifycfg | FileCheck %s
2
3define void @test_br(i32 %x) {
4entry:
5; CHECK-LABEL: @test_br(
6; CHECK-NEXT: entry:
7; CHECK-NEXT: ret void
8  %cmp = icmp eq i32 %x, 10
9  br i1 %cmp, label %if.then, label %if.then
10
11if.then:                                          ; preds = %entry
12  br label %if.end
13
14if.end:                                           ; preds = %if.else, %if.then
15  ret void
16}
17
18define void @test_switch(i32 %x) nounwind {
19entry:
20; CHECK-LABEL: @test_switch(
21; CHECK-NEXT: entry:
22; CHECK-NEXT: ret void
23  %rem = srem i32 %x, 3
24  switch i32 %rem, label %sw.bb [
25    i32 1, label %sw.bb
26    i32 10, label %sw.bb
27  ]
28
29sw.bb:                                            ; preds = %sw.default, %entry, %entry
30  br label %sw.epilog
31
32sw.epilog:                                        ; preds = %sw.bb
33  ret void
34}
35
36define void @test_indirectbr(i32 %x) {
37entry:
38; CHECK-LABEL: @test_indirectbr(
39; CHECK-NEXT: entry:
40; Ideally this should now check:
41;   CHK-NEXT: ret void
42; But that doesn't happen yet. Instead:
43; CHECK-NEXT: br label %L1
44
45  %label = bitcast i8* blockaddress(@test_indirectbr, %L1) to i8*
46  indirectbr i8* %label, [label %L1, label %L2]
47
48L1:                                               ; preds = %entry
49  ret void
50L2:                                               ; preds = %entry
51  ret void
52}
53