program main
    implicit none
    integer(8)::h, at_num, at_all
    read*,h
    at_num = 1
    at_all = 0
    do while(h > 1)
        at_all = at_all + at_num
        h = h / 2
        at_num = at_num * 2
    end do
    at_all = at_all + at_num

    print*, at_all

end program main
; 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"

@_QQcl.0243c8b2b0305ee26dabc02cd7814a9c = linkonce constant [73 x i8] c"/home/ubuntu/Downloads/TheStack_IR/Collated/Fortran/Source_2527/source.f\00"
@_QQEnvironmentDefaults = local_unnamed_addr constant ptr null

define void @_QQmain() local_unnamed_addr {
  %1 = alloca i64, align 8
  %2 = tail call ptr @_FortranAioBeginExternalListInput(i32 -1, ptr nonnull @_QQcl.0243c8b2b0305ee26dabc02cd7814a9c, i32 4)
  %3 = call i1 @_FortranAioInputInteger(ptr %2, ptr nonnull %1, i32 8)
  %4 = call i32 @_FortranAioEndIoStatement(ptr %2)
  %.pr = load i64, ptr %1, align 8, !tbaa !3
  %5 = icmp sgt i64 %.pr, 1
  br i1 %5, label %.lr.ph, label %12

.lr.ph:                                           ; preds = %0, %.lr.ph
  %.09 = phi i64 [ %9, %.lr.ph ], [ 1, %0 ]
  %.068 = phi i64 [ %7, %.lr.ph ], [ 0, %0 ]
  %6 = phi i64 [ %8, %.lr.ph ], [ %.pr, %0 ]
  %7 = add i64 %.09, %.068
  %8 = lshr i64 %6, 1
  %9 = shl i64 %.09, 1
  %10 = icmp ugt i64 %6, 3
  br i1 %10, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph
  store i64 %8, ptr %1, align 8, !tbaa !3
  %11 = add i64 %9, %7
  br label %12

12:                                               ; preds = %._crit_edge, %0
  %13 = phi i64 [ %11, %._crit_edge ], [ 1, %0 ]
  %14 = call ptr @_FortranAioBeginExternalListOutput(i32 -1, ptr nonnull @_QQcl.0243c8b2b0305ee26dabc02cd7814a9c, i32 14)
  %15 = call i1 @_FortranAioOutputInteger64(ptr %14, i64 %13)
  %16 = call i32 @_FortranAioEndIoStatement(ptr %14)
  ret void
}

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 ptr @_FortranAioBeginExternalListOutput(i32, ptr, i32) local_unnamed_addr

declare i1 @_FortranAioOutputInteger64(ptr, i64) local_unnamed_addr

!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"}
