44 lines
1.1 KiB
LLVM
44 lines
1.1 KiB
LLVM
|
; 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}
|