1; RUN: opt -S -o - -structurizecfg < %s | FileCheck %s
2
3; CHECK-LABEL: @invert_branch_on_arg_inf_loop(
4; CHECK: entry:
5; CHECK: %arg.inv = xor i1 %arg, true
6define void @invert_branch_on_arg_inf_loop(i32 addrspace(1)* %out, i1 %arg) {
7entry:
8  br i1 %arg, label %for.end, label %sesestart
9sesestart:
10  br label %for.body
11
12for.body:                                         ; preds = %entry, %for.body
13  store i32 999, i32 addrspace(1)* %out, align 4
14  br i1 %arg, label %for.body, label %seseend
15seseend:
16  ret void
17
18for.end:                                          ; preds = %Flow
19  ret void
20}
21
22
23; CHECK-LABEL: @invert_branch_on_arg_jump_into_loop(
24; CHECK: entry:
25; CHECK: %arg.inv = xor i1 %arg, true
26; CHECK: Flow:
27; CHECK: Flow1:
28define void @invert_branch_on_arg_jump_into_loop(i32 addrspace(1)* %out, i32 %n, i1 %arg) {
29entry:
30  br label %for.body
31
32for.body:
33  %i = phi i32 [0, %entry], [%i.inc, %end.loop]
34  %ptr = getelementptr i32, i32 addrspace(1)* %out, i32 %i
35  store i32 %i, i32 addrspace(1)* %ptr, align 4
36  br i1 %arg, label %mid.loop, label %end.loop
37
38mid.loop:
39  store i32 333, i32 addrspace(1)* %out, align 4
40  br label %for.end
41
42end.loop:
43  %i.inc = add i32 %i, 1
44  %cmp = icmp ne i32 %i.inc, %n
45  br i1 %cmp, label %for.body, label %for.end
46
47for.end:
48  ret void
49}
50
51