1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -passes='loop-mssa(licm)' < %s | FileCheck %s
@e = external dso_local global ptr, align 8
define void @main() {
; CHECK-LABEL: @main(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[LOOP1:%.*]]
; CHECK: loop1:
; CHECK-NEXT: br label [[LOOP2:%.*]]
; CHECK: loop2:
; CHECK-NEXT: br i1 false, label [[LOOP2_LATCH:%.*]], label [[LOOP_LATCH:%.*]]
; CHECK: loop2.latch:
; CHECK-NEXT: br label [[LOOP2]]
; CHECK: loop.latch:
; CHECK-NEXT: br label [[LOOP1]]
;
entry:
br label %loop1
loop1:
br label %loop2
loop2:
br i1 undef, label %loop2.latch, label %loop.latch
loop2.latch:
store i32 0, ptr null, align 4
br label %loop2
loop.latch:
store ptr null, ptr @e, align 8, !tbaa !0
%ptr = load ptr, ptr @e, align 8, !tbaa !0
store i32 0, ptr %ptr, align 4, !tbaa !4
br label %loop1
}
!0 = !{!1, !1, i64 0}
!1 = !{!"any pointer", !2, i64 0}
!2 = !{!"omnipotent char", !3, i64 0}
!3 = !{!"Simple C/C++ TBAA"}
!4 = !{!5, !5, i64 0}
!5 = !{!"int", !2, i64 0}
|
