; LLVM IR from DionysiosB/CodeForces :: 1200-1299 (1270B-InterestingSubarray)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [9 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  %7 = alloca i32, align 4
  %8 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  %9 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  br label %10

10:                                               ; preds = %62, %0
  %11 = load i64, ptr %2, align 8, !tbaa !5
  %12 = add nsw i64 %11, -1
  store i64 %12, ptr %2, align 8, !tbaa !5
  %13 = icmp ne i64 %11, 0
  br i1 %13, label %14, label %63

14:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %15 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %3)
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  store i64 0, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  store i64 -1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store i64 0, ptr %6, align 8, !tbaa !5
  br label %16

16:                                               ; preds = %46, %14
  %17 = load i64, ptr %6, align 8, !tbaa !5
  %18 = load i64, ptr %3, align 8, !tbaa !5
  %19 = icmp slt i64 %17, %18
  br i1 %19, label %21, label %20

20:                                               ; preds = %16
  store i32 4, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %49

21:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %22 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %8)
  %23 = load i64, ptr %4, align 8, !tbaa !5
  %24 = icmp ne i64 %23, 0
  br i1 %24, label %25, label %26

25:                                               ; preds = %21
  store i32 6, ptr %7, align 4
  br label %43

26:                                               ; preds = %21
  %27 = load i64, ptr %5, align 8, !tbaa !5
  %28 = icmp sge i64 %27, 0
  br i1 %28, label %29, label %41

29:                                               ; preds = %26
  %30 = load i64, ptr %8, align 8, !tbaa !5
  %31 = load i64, ptr %5, align 8, !tbaa !5
  %32 = add nsw i64 %31, 1
  %33 = icmp sgt i64 %30, %32
  br i1 %33, label %39, label %34

34:                                               ; preds = %29
  %35 = load i64, ptr %8, align 8, !tbaa !5
  %36 = load i64, ptr %5, align 8, !tbaa !5
  %37 = sub nsw i64 %36, 1
  %38 = icmp slt i64 %35, %37
  br i1 %38, label %39, label %41

39:                                               ; preds = %34, %29
  %40 = load i64, ptr %6, align 8, !tbaa !5
  store i64 %40, ptr %4, align 8, !tbaa !5
  br label %41

41:                                               ; preds = %39, %34, %26
  %42 = load i64, ptr %8, align 8, !tbaa !5
  store i64 %42, ptr %5, align 8, !tbaa !5
  store i32 0, ptr %7, align 4
  br label %43

43:                                               ; preds = %41, %25
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  %44 = load i32, ptr %7, align 4
  switch i32 %44, label %65 [
    i32 0, label %45
    i32 6, label %46
  ]

45:                                               ; preds = %43
  br label %46

46:                                               ; preds = %45, %43
  %47 = load i64, ptr %6, align 8, !tbaa !5
  %48 = add nsw i64 %47, 1
  store i64 %48, ptr %6, align 8, !tbaa !5
  br label %16, !llvm.loop !9

49:                                               ; preds = %20
  %50 = load i64, ptr %4, align 8, !tbaa !5
  %51 = icmp ne i64 %50, 0
  %52 = zext i1 %51 to i64
  %53 = select i1 %51, ptr @.str.1, ptr @.str.2
  %54 = call i32 @puts(ptr noundef %53)
  %55 = load i64, ptr %4, align 8, !tbaa !5
  %56 = icmp ne i64 %55, 0
  br i1 %56, label %57, label %62

57:                                               ; preds = %49
  %58 = load i64, ptr %4, align 8, !tbaa !5
  %59 = load i64, ptr %4, align 8, !tbaa !5
  %60 = add nsw i64 %59, 1
  %61 = call i32 (ptr, ...) @printf(ptr noundef @.str.3, i64 noundef %58, i64 noundef %60)
  br label %62

62:                                               ; preds = %57, %49
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  br label %10, !llvm.loop !11

63:                                               ; preds = %10
  store i32 0, ptr %1, align 4
  store i32 1, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  %64 = load i32, ptr %1, align 4
  ret i32 %64

65:                                               ; preds = %43
  unreachable
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

declare i32 @__isoc99_scanf(ptr noundef, ...) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

declare i32 @puts(ptr noundef) #2

declare i32 @printf(ptr noundef, ...) #2

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [9 x i8], align 1

; Function Attrs: mustprogress nofree norecurse nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i64, align 8
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #3
  %4 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %5 = load i64, ptr %1, align 8, !tbaa !5
  %6 = add nsw i64 %5, -1
  store i64 %6, ptr %1, align 8, !tbaa !5
  %.not23 = icmp eq i64 %5, 0
  br i1 %.not23, label %._crit_edge26, label %.lr.ph25

.lr.ph25:                                         ; preds = %0, %28
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %2)
  %8 = load i64, ptr %2, align 8, !tbaa !5
  %9 = icmp sgt i64 %8, 0
  br i1 %9, label %.lr.ph, label %._crit_edge.thread

._crit_edge.thread:                               ; preds = %.lr.ph25
  %10 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.2)
  br label %28

._crit_edge:                                      ; preds = %21
  %.not16 = icmp eq i64 %.2, 0
  %11 = select i1 %.not16, ptr @.str.2, ptr @.str.1
  %12 = call i32 @puts(ptr noundef nonnull dereferenceable(1) %11)
  br i1 %.not16, label %28, label %25

.lr.ph:                                           ; preds = %.lr.ph25, %21
  %.021 = phi i64 [ %22, %21 ], [ 0, %.lr.ph25 ]
  %.01220 = phi i64 [ %.1, %21 ], [ -1, %.lr.ph25 ]
  %.01319 = phi i64 [ %.2, %21 ], [ 0, %.lr.ph25 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %13 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %3)
  %.not17 = icmp eq i64 %.01319, 0
  br i1 %.not17, label %14, label %21

14:                                               ; preds = %.lr.ph
  %15 = icmp sgt i64 %.01220, -1
  %.pre = load i64, ptr %3, align 8, !tbaa !5
  br i1 %15, label %16, label %21

16:                                               ; preds = %14
  %17 = add nuw nsw i64 %.01220, 1
  %18 = icmp sgt i64 %.pre, %17
  %19 = add nsw i64 %.01220, -1
  %20 = icmp slt i64 %.pre, %19
  %or.cond = select i1 %18, i1 true, i1 %20
  %spec.select = select i1 %or.cond, i64 %.021, i64 0
  br label %21

21:                                               ; preds = %14, %16, %.lr.ph
  %.2 = phi i64 [ %.01319, %.lr.ph ], [ 0, %14 ], [ %spec.select, %16 ]
  %.1 = phi i64 [ %.01220, %.lr.ph ], [ %.pre, %14 ], [ %.pre, %16 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  %22 = add nuw nsw i64 %.021, 1
  %23 = load i64, ptr %2, align 8, !tbaa !5
  %24 = icmp slt i64 %22, %23
  br i1 %24, label %.lr.ph, label %._crit_edge, !llvm.loop !9

25:                                               ; preds = %._crit_edge
  %26 = add nsw i64 %.2, 1
  %27 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3, i64 noundef %.2, i64 noundef %26)
  br label %28

28:                                               ; preds = %._crit_edge.thread, %25, %._crit_edge
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  %29 = load i64, ptr %1, align 8, !tbaa !5
  %30 = add nsw i64 %29, -1
  store i64 %30, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %29, 0
  br i1 %.not, label %._crit_edge26, label %.lr.ph25, !llvm.loop !11

._crit_edge26:                                    ; preds = %28, %0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #3
  ret i32 0
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nofree nounwind
declare noundef i32 @puts(ptr nocapture noundef readonly) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

attributes #0 = { mustprogress nofree norecurse nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nofree nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopInstSimplifyPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass