program step
    implicit none
    integer(8) n, i
    integer(8) :: dai = 0
    integer,allocatable :: a(:)
    read *, n
    allocate(a(n))
    read *, a(:n)
    do i = 2, n
        if(a(i) .lt. a(i-1))then
            dai = dai+(a(i-1)-a(i))
            a(i) = a(i) + (a(i-1)-a(i))
        end if
    end do
    print *, dai
end program
; 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
@_QFEdai = internal unnamed_addr global i64 0
@_QQcl.f11d6c54dd4dd0b40c05850762897219 = linkonce constant [72 x i8] c"/home/ubuntu/Downloads/TheStack_IR/Collated/Fortran/Source_761/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

define void @_QQmain() local_unnamed_addr {
  %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.f11d6c54dd4dd0b40c05850762897219, i32 6)
  %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, 2
  %9 = call ptr @malloc(i64 %8)
  store ptr %9, ptr @_QFEa.0, align 8, !tbaa !7
  %10 = call ptr @_FortranAioBeginExternalListInput(i32 -1, ptr nonnull @_QQcl.f11d6c54dd4dd0b40c05850762897219, i32 8)
  %.unpack = load ptr, ptr @_QFEa.0, align 8, !tbaa !7
  %11 = load i64, ptr %2, align 8, !tbaa !3
  %12 = call i64 @llvm.smax.i64(i64 %11, i64 0)
  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 4, 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 9, 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 %12, 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 4, ptr %.fca.7.0.2.gep, align 8, !tbaa !7
  %13 = call i1 @_FortranAioInputDescriptor(ptr %10, ptr nonnull %1)
  %14 = call i32 @_FortranAioEndIoStatement(ptr %10)
  %15 = load i64, ptr %2, align 8, !tbaa !3
  %16 = add i64 %15, -1
  %17 = icmp sgt i64 %16, 0
  br i1 %17, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %0
  %_QFEdai.promoted = load i64, ptr @_QFEdai, align 8, !tbaa !3
  %.unpack153 = load ptr, ptr @_QFEa.0, align 8, !tbaa !7
  br label %18

18:                                               ; preds = %.lr.ph, %32
  %19 = phi i64 [ 2, %.lr.ph ], [ %34, %32 ]
  %20 = phi i64 [ %_QFEdai.promoted, %.lr.ph ], [ %33, %32 ]
  %21 = add i64 %19, -1
  %22 = getelementptr i32, ptr %.unpack153, i64 %21
  %23 = load i32, ptr %22, align 4, !tbaa !3
  %24 = add i64 %19, -2
  %25 = getelementptr i32, ptr %.unpack153, i64 %24
  %26 = load i32, ptr %25, align 4, !tbaa !3
  %27 = icmp sgt i32 %26, %23
  br i1 %27, label %28, label %32

28:                                               ; preds = %18
  %29 = sub i32 %26, %23
  %30 = sext i32 %29 to i64
  %31 = add i64 %20, %30
  store i64 %31, ptr @_QFEdai, align 8, !tbaa !3
  store i32 %26, ptr %22, align 4, !tbaa !3
  br label %32

32:                                               ; preds = %28, %18
  %33 = phi i64 [ %31, %28 ], [ %20, %18 ]
  %34 = add nuw i64 %19, 1
  %exitcond.not = icmp eq i64 %19, %15
  br i1 %exitcond.not, label %._crit_edge, label %18

._crit_edge:                                      ; preds = %32, %0
  %35 = call ptr @_FortranAioBeginExternalListOutput(i32 -1, ptr nonnull @_QQcl.f11d6c54dd4dd0b40c05850762897219, i32 15)
  %36 = load i64, ptr @_QFEdai, align 8, !tbaa !3
  %37 = call i1 @_FortranAioOutputInteger64(ptr %35, i64 %36)
  %38 = call i32 @_FortranAioEndIoStatement(ptr %35)
  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 i1 @_FortranAioInputDescriptor(ptr, ptr) local_unnamed_addr

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

declare i1 @_FortranAioOutputInteger64(ptr, i64) local_unnamed_addr

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.smax.i64(i64, i64) #1

attributes #0 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" }
attributes #1 = { 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}
