; LLVM IR from DionysiosB/CodeForces :: 0900-0999 (965C-GreedyArcady)

; 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 [20 x i8], align 1
@.str.1 = 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 i32, align 4
  %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
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %12 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2, ptr noundef %3, ptr noundef %4, ptr noundef %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 = %73, %0
  %14 = load i64, ptr %7, align 8, !tbaa !5
  %15 = load i64, ptr %5, align 8, !tbaa !5
  %16 = icmp slt i64 %14, %15
  br i1 %16, label %18, label %17

17:                                               ; preds = %13
  store i32 2, ptr %8, align 4
  br label %76

18:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %19 = load i64, ptr %2, align 8, !tbaa !5
  %20 = load i64, ptr %3, align 8, !tbaa !5
  %21 = load i64, ptr %7, align 8, !tbaa !5
  %22 = mul nsw i64 %20, %21
  %23 = add nsw i64 %22, 1
  %24 = sdiv i64 %19, %23
  store i64 %24, ptr %9, align 8, !tbaa !5
  %25 = load i64, ptr %9, align 8, !tbaa !5
  %26 = load i64, ptr %4, align 8, !tbaa !5
  %27 = icmp slt i64 %25, %26
  br i1 %27, label %28, label %30

28:                                               ; preds = %18
  %29 = load i64, ptr %9, align 8, !tbaa !5
  br label %32

30:                                               ; preds = %18
  %31 = load i64, ptr %4, align 8, !tbaa !5
  br label %32

32:                                               ; preds = %30, %28
  %33 = phi i64 [ %29, %28 ], [ %31, %30 ]
  store i64 %33, ptr %9, align 8, !tbaa !5
  %34 = load i64, ptr %9, align 8, !tbaa !5
  %35 = icmp sle i64 %34, 0
  br i1 %35, label %36, label %37

36:                                               ; preds = %32
  store i32 2, ptr %8, align 4
  br label %70

37:                                               ; preds = %32
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  %38 = load i64, ptr %2, align 8, !tbaa !5
  %39 = load i64, ptr %9, align 8, !tbaa !5
  %40 = sdiv i64 %38, %39
  store i64 %40, ptr %10, align 8, !tbaa !5
  %41 = load i64, ptr %10, align 8, !tbaa !5
  %42 = load i64, ptr %3, align 8, !tbaa !5
  %43 = add nsw i64 %41, %42
  %44 = sub nsw i64 %43, 1
  %45 = load i64, ptr %3, align 8, !tbaa !5
  %46 = sdiv i64 %44, %45
  %47 = load i64, ptr %5, align 8, !tbaa !5
  %48 = add nsw i64 %47, 1
  %49 = icmp sgt i64 %46, %48
  br i1 %49, label %50, label %51

50:                                               ; preds = %37
  store i32 4, ptr %8, align 4
  br label %69

51:                                               ; preds = %37
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #3
  %52 = load i64, ptr %9, align 8, !tbaa !5
  %53 = load i64, ptr %10, align 8, !tbaa !5
  %54 = load i64, ptr %3, align 8, !tbaa !5
  %55 = add nsw i64 %53, %54
  %56 = sub nsw i64 %55, 1
  %57 = load i64, ptr %3, align 8, !tbaa !5
  %58 = sdiv i64 %56, %57
  %59 = mul nsw i64 %52, %58
  store i64 %59, ptr %11, align 8, !tbaa !5
  %60 = load i64, ptr %6, align 8, !tbaa !5
  %61 = load i64, ptr %11, align 8, !tbaa !5
  %62 = icmp sgt i64 %60, %61
  br i1 %62, label %63, label %65

63:                                               ; preds = %51
  %64 = load i64, ptr %6, align 8, !tbaa !5
  br label %67

65:                                               ; preds = %51
  %66 = load i64, ptr %11, align 8, !tbaa !5
  br label %67

67:                                               ; preds = %65, %63
  %68 = phi i64 [ %64, %63 ], [ %66, %65 ]
  store i64 %68, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #3
  store i32 0, ptr %8, align 4
  br label %69

69:                                               ; preds = %67, %50
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  br label %70

70:                                               ; preds = %69, %36
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  %71 = load i32, ptr %8, align 4
  switch i32 %71, label %76 [
    i32 0, label %72
    i32 4, label %73
  ]

72:                                               ; preds = %70
  br label %73

73:                                               ; preds = %72, %70
  %74 = load i64, ptr %7, align 8, !tbaa !5
  %75 = add nsw i64 %74, 1
  store i64 %75, ptr %7, align 8, !tbaa !5
  br label %13, !llvm.loop !9

76:                                               ; preds = %70, %17
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  br label %77

77:                                               ; preds = %76
  %78 = load i64, ptr %6, align 8, !tbaa !5
  %79 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %78)
  store i32 0, ptr %1, align 4
  store i32 1, ptr %8, align 4
  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
  %80 = load i32, ptr %1, align 4
  ret i32 %80
}

; 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 [20 x i8], align 1
@.str.1 = 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
  %4 = 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
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  %5 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1, ptr noundef nonnull %2, ptr noundef nonnull %3, ptr noundef nonnull %4)
  %6 = load i64, ptr %4, align 8, !tbaa !5
  %7 = icmp sgt i64 %6, 0
  br i1 %7, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %0
  %8 = load i64, ptr %1, align 8, !tbaa !5
  %9 = load i64, ptr %2, align 8, !tbaa !5
  %10 = load i64, ptr %3, align 8
  %11 = add i64 %9, -1
  %12 = add nuw nsw i64 %6, 1
  br label %13

13:                                               ; preds = %.lr.ph, %27
  %.027 = phi i64 [ 0, %.lr.ph ], [ %.2.ph, %27 ]
  %.01926 = phi i64 [ 0, %.lr.ph ], [ %28, %27 ]
  %14 = mul nsw i64 %9, %.01926
  %15 = add nsw i64 %14, 1
  %16 = sdiv i64 %8, %15
  %17 = call i64 @llvm.smin.i64(i64 %16, i64 %10)
  %18 = icmp slt i64 %17, 1
  br i1 %18, label %._crit_edge, label %19

19:                                               ; preds = %13
  %20 = sdiv i64 %8, %17
  %21 = add i64 %11, %20
  %22 = sdiv i64 %21, %9
  %23 = icmp sgt i64 %22, %12
  br i1 %23, label %27, label %24

24:                                               ; preds = %19
  %25 = mul nsw i64 %22, %17
  %26 = call i64 @llvm.smax.i64(i64 %.027, i64 %25)
  br label %27

27:                                               ; preds = %24, %19
  %.2.ph = phi i64 [ %.027, %19 ], [ %26, %24 ]
  %28 = add nuw nsw i64 %.01926, 1
  %exitcond.not = icmp eq i64 %28, %6
  br i1 %exitcond.not, label %._crit_edge, label %13, !llvm.loop !9

._crit_edge:                                      ; preds = %27, %13, %0
  %.0.lcssa = phi i64 [ 0, %0 ], [ %.027, %13 ], [ %.2.ph, %27 ]
  %29 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %.0.lcssa)
  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
  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

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.smax.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: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass