; LLVM IR from DionysiosB/CodeForces :: 0900-0999 (978E-BusVideoSystem)

; 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 [10 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [6 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
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %12 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2, 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 0, 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
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  store i64 0, ptr %7, align 8, !tbaa !5
  br label %13

13:                                               ; preds = %41, %0
  %14 = load i64, ptr %7, align 8, !tbaa !5
  %15 = load i64, ptr %2, align 8, !tbaa !5
  %16 = icmp slt i64 %14, %15
  br i1 %16, label %18, label %17

17:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  br label %44

18:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %19 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %8)
  %20 = load i64, ptr %8, align 8, !tbaa !5
  %21 = load i64, ptr %6, align 8, !tbaa !5
  %22 = add nsw i64 %21, %20
  store i64 %22, ptr %6, align 8, !tbaa !5
  %23 = load i64, ptr %4, align 8, !tbaa !5
  %24 = load i64, ptr %6, align 8, !tbaa !5
  %25 = icmp slt i64 %23, %24
  br i1 %25, label %26, label %28

26:                                               ; preds = %18
  %27 = load i64, ptr %4, align 8, !tbaa !5
  br label %30

28:                                               ; preds = %18
  %29 = load i64, ptr %6, align 8, !tbaa !5
  br label %30

30:                                               ; preds = %28, %26
  %31 = phi i64 [ %27, %26 ], [ %29, %28 ]
  store i64 %31, ptr %4, align 8, !tbaa !5
  %32 = load i64, ptr %5, align 8, !tbaa !5
  %33 = load i64, ptr %6, align 8, !tbaa !5
  %34 = icmp sgt i64 %32, %33
  br i1 %34, label %35, label %37

35:                                               ; preds = %30
  %36 = load i64, ptr %5, align 8, !tbaa !5
  br label %39

37:                                               ; preds = %30
  %38 = load i64, ptr %6, align 8, !tbaa !5
  br label %39

39:                                               ; preds = %37, %35
  %40 = phi i64 [ %36, %35 ], [ %38, %37 ]
  store i64 %40, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %41

41:                                               ; preds = %39
  %42 = load i64, ptr %7, align 8, !tbaa !5
  %43 = add nsw i64 %42, 1
  store i64 %43, ptr %7, align 8, !tbaa !5
  br label %13, !llvm.loop !9

44:                                               ; preds = %17
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %45 = load i64, ptr %4, align 8, !tbaa !5
  %46 = sub nsw i64 0, %45
  store i64 %46, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  %47 = load i64, ptr %3, align 8, !tbaa !5
  %48 = load i64, ptr %5, align 8, !tbaa !5
  %49 = sub nsw i64 %47, %48
  store i64 %49, ptr %10, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #3
  %50 = load i64, ptr %10, align 8, !tbaa !5
  %51 = load i64, ptr %9, align 8, !tbaa !5
  %52 = sub nsw i64 %50, %51
  %53 = add nsw i64 %52, 1
  store i64 %53, ptr %11, align 8, !tbaa !5
  %54 = load i64, ptr %11, align 8, !tbaa !5
  %55 = icmp sgt i64 %54, 0
  br i1 %55, label %56, label %58

56:                                               ; preds = %44
  %57 = load i64, ptr %11, align 8, !tbaa !5
  br label %59

58:                                               ; preds = %44
  br label %59

59:                                               ; preds = %58, %56
  %60 = phi i64 [ %57, %56 ], [ 0, %58 ]
  store i64 %60, ptr %11, align 8, !tbaa !5
  %61 = load i64, ptr %11, align 8, !tbaa !5
  %62 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i64 noundef %61)
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #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
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  ret i32 0
}

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

._crit_edge.loopexit:                             ; preds = %.lr.ph
  %7 = sub i64 %17, %18
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %0
  %8 = phi i64 [ 0, %0 ], [ %7, %._crit_edge.loopexit ]
  %9 = load i64, ptr %2, align 8, !tbaa !5
  %10 = add i64 %8, %9
  %11 = call i64 @llvm.smax.i64(i64 %10, i64 -1)
  %12 = add nsw i64 %11, 1
  %13 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i64 noundef %12)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #4
  ret i32 0

.lr.ph:                                           ; preds = %0, %.lr.ph
  %.024 = phi i64 [ %17, %.lr.ph ], [ 0, %0 ]
  %.01823 = phi i64 [ %18, %.lr.ph ], [ 0, %0 ]
  %.01922 = phi i64 [ %16, %.lr.ph ], [ 0, %0 ]
  %.02021 = phi i64 [ %19, %.lr.ph ], [ 0, %0 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  %14 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %3)
  %15 = load i64, ptr %3, align 8, !tbaa !5
  %16 = add nsw i64 %15, %.01922
  %17 = call i64 @llvm.smin.i64(i64 %.024, i64 %16)
  %18 = call i64 @llvm.smax.i64(i64 %.01823, i64 %16)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  %19 = add nuw nsw i64 %.02021, 1
  %20 = load i64, ptr %1, align 8, !tbaa !5
  %21 = icmp slt i64 %19, %20
  br i1 %21, label %.lr.ph, label %._crit_edge.loopexit, !llvm.loop !9
}

; 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.smax.i64(i64, i64) #3

; 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 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: GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass