program sample
    implicit none
  
    integer(8) :: i,j,m,n,h,w
    
    integer(8),allocatable :: a(:),y(:)
  
    read(*,*) n
    allocate(a(n))
    read(*,*)a
    w=1
    do i=1,n
        w=a(w)
        if (w==2)then
            write(*,*)i
            stop
        end if
    end do
    write(*,*)-1
    stop
end program sample
  


; ModuleID = 'FIRModule'
source_filename = "FIRModule"
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-pc-linux-gnu"

@_QFEa.0 = internal unnamed_addr global ptr null
@_QFEa.8 = internal unnamed_addr global i64 0
@_QQcl.761b9c1ac3b18fafc208513e3062a694 = linkonce constant [73 x i8] c"/home/ubuntu/Downloads/TheStack_IR/Collated/Fortran/Source_7178/source.f\00"
@_QQEnvironmentDefaults = local_unnamed_addr constant ptr null

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #0

; Function Attrs: noreturn
define void @_QQmain() local_unnamed_addr #1 {
  %1 = alloca { ptr, i64, i32, i8, i8, i8, i8, [1 x [3 x i64]] }, align 8
  %2 = alloca i64, align 8
  %3 = tail call ptr @_FortranAioBeginExternalListInput(i32 -1, ptr nonnull @_QQcl.761b9c1ac3b18fafc208513e3062a694, i32 8)
  %4 = call i1 @_FortranAioInputInteger(ptr %3, ptr nonnull %2, i32 8)
  %5 = call i32 @_FortranAioEndIoStatement(ptr %3)
  %6 = load i64, ptr %2, align 8, !tbaa !3
  %7 = call i64 @llvm.smax.i64(i64 %6, i64 0)
  %8 = shl i64 %7, 3
  %9 = call ptr @malloc(i64 %8)
  store ptr %9, ptr @_QFEa.0, align 8, !tbaa !7
  store i64 %7, ptr @_QFEa.8, align 8, !tbaa !7
  %10 = call ptr @_FortranAioBeginExternalListInput(i32 -1, ptr nonnull @_QQcl.761b9c1ac3b18fafc208513e3062a694, i32 10)
  %.unpack = load ptr, ptr @_QFEa.0, align 8, !tbaa !7
  %.unpack91.unpack.unpack93 = load i64, ptr @_QFEa.8, align 8, !tbaa !7
  store ptr %.unpack, ptr %1, align 8, !tbaa !7
  %.fca.1.gep = getelementptr inbounds { ptr, i64, i32, i8, i8, i8, i8, [1 x [3 x i64]] }, ptr %1, i64 0, i32 1
  store i64 8, ptr %.fca.1.gep, align 8, !tbaa !7
  %.fca.2.gep = getelementptr inbounds { ptr, i64, i32, i8, i8, i8, i8, [1 x [3 x i64]] }, ptr %1, i64 0, i32 2
  store i32 20180515, ptr %.fca.2.gep, align 8, !tbaa !7
  %.fca.3.gep = getelementptr inbounds { ptr, i64, i32, i8, i8, i8, i8, [1 x [3 x i64]] }, ptr %1, i64 0, i32 3
  store i8 1, ptr %.fca.3.gep, align 4, !tbaa !7
  %.fca.4.gep = getelementptr inbounds { ptr, i64, i32, i8, i8, i8, i8, [1 x [3 x i64]] }, ptr %1, i64 0, i32 4
  store i8 10, ptr %.fca.4.gep, align 1, !tbaa !7
  %.fca.5.gep = getelementptr inbounds { ptr, i64, i32, i8, i8, i8, i8, [1 x [3 x i64]] }, ptr %1, i64 0, i32 5
  store i8 0, ptr %.fca.5.gep, align 2, !tbaa !7
  %.fca.6.gep = getelementptr inbounds { ptr, i64, i32, i8, i8, i8, i8, [1 x [3 x i64]] }, ptr %1, i64 0, i32 6
  store i8 0, ptr %.fca.6.gep, align 1, !tbaa !7
  %.fca.7.0.0.gep = getelementptr inbounds { ptr, i64, i32, i8, i8, i8, i8, [1 x [3 x i64]] }, ptr %1, i64 0, i32 7, i64 0, i64 0
  store i64 1, ptr %.fca.7.0.0.gep, align 8, !tbaa !7
  %.fca.7.0.1.gep = getelementptr inbounds { ptr, i64, i32, i8, i8, i8, i8, [1 x [3 x i64]] }, ptr %1, i64 0, i32 7, i64 0, i64 1
  store i64 %.unpack91.unpack.unpack93, ptr %.fca.7.0.1.gep, align 8, !tbaa !7
  %.fca.7.0.2.gep = getelementptr inbounds { ptr, i64, i32, i8, i8, i8, i8, [1 x [3 x i64]] }, ptr %1, i64 0, i32 7, i64 0, i64 2
  store i64 8, ptr %.fca.7.0.2.gep, align 8, !tbaa !7
  %11 = call i1 @_FortranAioInputDescriptor(ptr %10, ptr nonnull %1)
  %12 = call i32 @_FortranAioEndIoStatement(ptr %10)
  %13 = load i64, ptr %2, align 8, !tbaa !3
  %14 = icmp sgt i64 %13, 0
  br i1 %14, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %0
  %.unpack96 = load ptr, ptr @_QFEa.0, align 8, !tbaa !7
  br label %15

15:                                               ; preds = %.lr.ph, %25
  %.0111 = phi i64 [ 1, %.lr.ph ], [ %18, %25 ]
  %.073110 = phi i64 [ 1, %.lr.ph ], [ %26, %25 ]
  %16 = add i64 %.0111, -1
  %17 = getelementptr i64, ptr %.unpack96, i64 %16
  %18 = load i64, ptr %17, align 8, !tbaa !3
  %19 = icmp eq i64 %18, 2
  br i1 %19, label %20, label %25

20:                                               ; preds = %15
  %21 = call ptr @_FortranAioBeginExternalListOutput(i32 -1, ptr nonnull @_QQcl.761b9c1ac3b18fafc208513e3062a694, i32 15)
  %22 = call i1 @_FortranAioOutputInteger64(ptr %21, i64 %.073110)
  %23 = call i32 @_FortranAioEndIoStatement(ptr %21)
  %24 = call {} @_FortranAStopStatement(i32 0, i1 false, i1 false)
  unreachable

25:                                               ; preds = %15
  %26 = add nuw i64 %.073110, 1
  %exitcond.not = icmp eq i64 %.073110, %13
  br i1 %exitcond.not, label %._crit_edge, label %15

._crit_edge:                                      ; preds = %25, %0
  %27 = call ptr @_FortranAioBeginExternalListOutput(i32 -1, ptr nonnull @_QQcl.761b9c1ac3b18fafc208513e3062a694, i32 19)
  %28 = call i1 @_FortranAioOutputInteger32(ptr %27, i32 -1)
  %29 = call i32 @_FortranAioEndIoStatement(ptr %27)
  %30 = call {} @_FortranAStopStatement(i32 0, i1 false, i1 false)
  unreachable
}

declare ptr @_FortranAioBeginExternalListInput(i32, ptr, i32) local_unnamed_addr

declare i1 @_FortranAioInputInteger(ptr, ptr, i32) local_unnamed_addr

declare i32 @_FortranAioEndIoStatement(ptr) local_unnamed_addr

declare i1 @_FortranAioInputDescriptor(ptr, ptr) local_unnamed_addr

declare ptr @_FortranAioBeginExternalListOutput(i32, ptr, i32) local_unnamed_addr

declare i1 @_FortranAioOutputInteger64(ptr, i64) local_unnamed_addr

declare {} @_FortranAStopStatement(i32, i1, i1) local_unnamed_addr

declare i1 @_FortranAioOutputInteger32(ptr, i32) local_unnamed_addr

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.smax.i64(i64, i64) #2

attributes #0 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" }
attributes #1 = { noreturn }
attributes #2 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }

!llvm.module.flags = !{!0, !1, !2}

!0 = !{i32 2, !"Debug Info Version", i32 3}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{!4, !4, i64 0}
!4 = !{!"any data access", !5, i64 0}
!5 = !{!"any access", !6, i64 0}
!6 = !{!"Flang Type TBAA Root"}
!7 = !{!8, !8, i64 0}
!8 = !{!"descriptor member", !5, i64 0}
