; LLVM IR from DionysiosB/CodeForces :: 2044C-HardProblem (main)

; 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 [16 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [5 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 i64, align 8
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  %10 = alloca i64, align 8
  %11 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  %12 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  br label %13

13:                                               ; preds = %75, %0
  %14 = load i64, ptr %2, align 8, !tbaa !5
  %15 = add nsw i64 %14, -1
  store i64 %15, ptr %2, align 8, !tbaa !5
  %16 = icmp ne i64 %14, 0
  br i1 %16, label %17, label %78

17:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %18 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %3, ptr noundef %4, ptr noundef %5, ptr noundef %6)
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  store i64 0, ptr %7, align 8, !tbaa !5
  %19 = load i64, ptr %4, align 8, !tbaa !5
  %20 = load i64, ptr %3, align 8, !tbaa !5
  %21 = icmp slt i64 %19, %20
  br i1 %21, label %22, label %44

22:                                               ; preds = %17
  %23 = load i64, ptr %4, align 8, !tbaa !5
  %24 = load i64, ptr %7, align 8, !tbaa !5
  %25 = add nsw i64 %24, %23
  store i64 %25, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %26 = load i64, ptr %3, align 8, !tbaa !5
  %27 = load i64, ptr %4, align 8, !tbaa !5
  %28 = sub nsw i64 %26, %27
  store i64 %28, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %29 = load i64, ptr %8, align 8, !tbaa !5
  %30 = load i64, ptr %6, align 8, !tbaa !5
  %31 = icmp slt i64 %29, %30
  br i1 %31, label %32, label %34

32:                                               ; preds = %22
  %33 = load i64, ptr %8, align 8, !tbaa !5
  br label %36

34:                                               ; preds = %22
  %35 = load i64, ptr %6, align 8, !tbaa !5
  br label %36

36:                                               ; preds = %34, %32
  %37 = phi i64 [ %33, %32 ], [ %35, %34 ]
  store i64 %37, ptr %9, align 8, !tbaa !5
  %38 = load i64, ptr %9, align 8, !tbaa !5
  %39 = load i64, ptr %7, align 8, !tbaa !5
  %40 = add nsw i64 %39, %38
  store i64 %40, ptr %7, align 8, !tbaa !5
  %41 = load i64, ptr %9, align 8, !tbaa !5
  %42 = load i64, ptr %6, align 8, !tbaa !5
  %43 = sub nsw i64 %42, %41
  store i64 %43, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %48

44:                                               ; preds = %17
  %45 = load i64, ptr %3, align 8, !tbaa !5
  %46 = load i64, ptr %7, align 8, !tbaa !5
  %47 = add nsw i64 %46, %45
  store i64 %47, ptr %7, align 8, !tbaa !5
  br label %48

48:                                               ; preds = %44, %36
  %49 = load i64, ptr %5, align 8, !tbaa !5
  %50 = load i64, ptr %3, align 8, !tbaa !5
  %51 = icmp slt i64 %49, %50
  br i1 %51, label %52, label %71

52:                                               ; preds = %48
  %53 = load i64, ptr %5, align 8, !tbaa !5
  %54 = load i64, ptr %7, align 8, !tbaa !5
  %55 = add nsw i64 %54, %53
  store i64 %55, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  %56 = load i64, ptr %3, align 8, !tbaa !5
  %57 = load i64, ptr %5, align 8, !tbaa !5
  %58 = sub nsw i64 %56, %57
  store i64 %58, ptr %10, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #3
  %59 = load i64, ptr %10, align 8, !tbaa !5
  %60 = load i64, ptr %6, align 8, !tbaa !5
  %61 = icmp slt i64 %59, %60
  br i1 %61, label %62, label %64

62:                                               ; preds = %52
  %63 = load i64, ptr %10, align 8, !tbaa !5
  br label %66

64:                                               ; preds = %52
  %65 = load i64, ptr %6, align 8, !tbaa !5
  br label %66

66:                                               ; preds = %64, %62
  %67 = phi i64 [ %63, %62 ], [ %65, %64 ]
  store i64 %67, ptr %11, align 8, !tbaa !5
  %68 = load i64, ptr %11, align 8, !tbaa !5
  %69 = load i64, ptr %7, align 8, !tbaa !5
  %70 = add nsw i64 %69, %68
  store i64 %70, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  br label %75

71:                                               ; preds = %48
  %72 = load i64, ptr %3, align 8, !tbaa !5
  %73 = load i64, ptr %7, align 8, !tbaa !5
  %74 = add nsw i64 %73, %72
  store i64 %74, ptr %7, align 8, !tbaa !5
  br label %75

75:                                               ; preds = %71, %66
  %76 = load i64, ptr %7, align 8, !tbaa !5
  %77 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i64 noundef %76)
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  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 %13, !llvm.loop !9

78:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  %79 = load i32, ptr %1, align 4
  ret i32 %79
}

; 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 @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"}


; 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 [16 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [5 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
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #4
  %6 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %7 = load i64, ptr %1, align 8, !tbaa !5
  %8 = add nsw i64 %7, -1
  store i64 %8, ptr %1, align 8, !tbaa !5
  %.not21 = icmp eq i64 %7, 0
  br i1 %.not21, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %0, %30
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #4
  %9 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %2, ptr noundef nonnull %3, ptr noundef nonnull %4, ptr noundef nonnull %5)
  %10 = load i64, ptr %3, align 8, !tbaa !5
  %11 = load i64, ptr %2, align 8, !tbaa !5
  %12 = icmp slt i64 %10, %11
  br i1 %12, label %13, label %19

13:                                               ; preds = %.lr.ph
  %14 = sub nsw i64 %11, %10
  %15 = load i64, ptr %5, align 8
  %16 = call i64 @llvm.smin.i64(i64 %14, i64 %15)
  %17 = add nsw i64 %16, %10
  %18 = sub nsw i64 %15, %16
  store i64 %18, ptr %5, align 8, !tbaa !5
  br label %19

19:                                               ; preds = %.lr.ph, %13
  %.0 = phi i64 [ %17, %13 ], [ %11, %.lr.ph ]
  %20 = load i64, ptr %4, align 8, !tbaa !5
  %21 = icmp slt i64 %20, %11
  br i1 %21, label %22, label %28

22:                                               ; preds = %19
  %23 = add nsw i64 %20, %.0
  %24 = sub nsw i64 %11, %20
  %25 = load i64, ptr %5, align 8
  %26 = call i64 @llvm.smin.i64(i64 %24, i64 %25)
  %27 = add nsw i64 %23, %26
  br label %30

28:                                               ; preds = %19
  %29 = add nsw i64 %.0, %11
  br label %30

30:                                               ; preds = %28, %22
  %.1 = phi i64 [ %27, %22 ], [ %29, %28 ]
  %31 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i64 noundef %.1)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #4
  %32 = load i64, ptr %1, align 8, !tbaa !5
  %33 = add nsw i64 %32, -1
  store i64 %33, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %32, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9

._crit_edge:                                      ; preds = %30, %0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #4
  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 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.smin.i64(i64, i64) #3

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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #4 = { 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"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass