; LLVM IR from DionysiosB/CodeForces :: 1600-1699 (1690A-PrintAPedestalCodeforcesLogo)

; 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 [13 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
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  br label %8

8:                                                ; preds = %51, %0
  %9 = load i64, ptr %2, align 8, !tbaa !5
  %10 = add nsw i64 %9, -1
  store i64 %10, ptr %2, align 8, !tbaa !5
  %11 = icmp ne i64 %9, 0
  br i1 %11, label %12, label %56

12:                                               ; preds = %8
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %13 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %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
  %14 = load i64, ptr %3, align 8, !tbaa !5
  %15 = srem i64 %14, 3
  %16 = icmp eq i64 %15, 0
  br i1 %16, label %17, label %25

17:                                               ; preds = %12
  %18 = load i64, ptr %3, align 8, !tbaa !5
  %19 = sub nsw i64 %18, 3
  %20 = sdiv i64 %19, 3
  store i64 %20, ptr %6, align 8, !tbaa !5
  store i64 %20, ptr %5, align 8, !tbaa !5
  store i64 %20, ptr %4, align 8, !tbaa !5
  %21 = load i64, ptr %4, align 8, !tbaa !5
  %22 = add nsw i64 %21, 1
  store i64 %22, ptr %4, align 8, !tbaa !5
  %23 = load i64, ptr %5, align 8, !tbaa !5
  %24 = add nsw i64 %23, 2
  store i64 %24, ptr %5, align 8, !tbaa !5
  br label %51

25:                                               ; preds = %12
  %26 = load i64, ptr %3, align 8, !tbaa !5
  %27 = srem i64 %26, 3
  %28 = icmp eq i64 %27, 1
  br i1 %28, label %29, label %37

29:                                               ; preds = %25
  %30 = load i64, ptr %3, align 8, !tbaa !5
  %31 = sub nsw i64 %30, 4
  %32 = sdiv i64 %31, 3
  store i64 %32, ptr %6, align 8, !tbaa !5
  store i64 %32, ptr %5, align 8, !tbaa !5
  store i64 %32, ptr %4, align 8, !tbaa !5
  %33 = load i64, ptr %4, align 8, !tbaa !5
  %34 = add nsw i64 %33, 1
  store i64 %34, ptr %4, align 8, !tbaa !5
  %35 = load i64, ptr %5, align 8, !tbaa !5
  %36 = add nsw i64 %35, 3
  store i64 %36, ptr %5, align 8, !tbaa !5
  br label %50

37:                                               ; preds = %25
  %38 = load i64, ptr %3, align 8, !tbaa !5
  %39 = srem i64 %38, 3
  %40 = icmp eq i64 %39, 2
  br i1 %40, label %41, label %49

41:                                               ; preds = %37
  %42 = load i64, ptr %3, align 8, !tbaa !5
  %43 = sub nsw i64 %42, 5
  %44 = sdiv i64 %43, 3
  store i64 %44, ptr %6, align 8, !tbaa !5
  store i64 %44, ptr %5, align 8, !tbaa !5
  store i64 %44, ptr %4, align 8, !tbaa !5
  %45 = load i64, ptr %4, align 8, !tbaa !5
  %46 = add nsw i64 %45, 2
  store i64 %46, ptr %4, align 8, !tbaa !5
  %47 = load i64, ptr %5, align 8, !tbaa !5
  %48 = add nsw i64 %47, 3
  store i64 %48, ptr %5, align 8, !tbaa !5
  br label %49

49:                                               ; preds = %41, %37
  br label %50

50:                                               ; preds = %49, %29
  br label %51

51:                                               ; preds = %50, %17
  %52 = load i64, ptr %4, align 8, !tbaa !5
  %53 = load i64, ptr %5, align 8, !tbaa !5
  %54 = load i64, ptr %6, align 8, !tbaa !5
  %55 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %52, i64 noundef %53, i64 noundef %54)
  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 %8, !llvm.loop !9

56:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  %57 = load i32, ptr %1, align 4
  ret i32 %57
}

; 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

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

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

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 [13 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
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #3
  %3 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %4 = load i64, ptr %1, align 8, !tbaa !5
  %5 = add nsw i64 %4, -1
  store i64 %5, ptr %1, align 8, !tbaa !5
  %.not15 = icmp eq i64 %4, 0
  br i1 %.not15, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %0, %24
  %.018 = phi i64 [ %.1, %24 ], [ undef, %0 ]
  %.01017 = phi i64 [ %.111, %24 ], [ undef, %0 ]
  %.01216 = phi i64 [ %.113, %24 ], [ undef, %0 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  %6 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %2)
  %7 = load i64, ptr %2, align 8, !tbaa !5
  %8 = srem i64 %7, 3
  switch i64 %8, label %24 [
    i64 0, label %9
    i64 1, label %14
    i64 2, label %19
  ]

9:                                                ; preds = %.lr.ph
  %10 = add nsw i64 %7, -3
  %11 = sdiv i64 %10, 3
  %12 = add nsw i64 %11, 1
  %13 = add nsw i64 %11, 2
  br label %24

14:                                               ; preds = %.lr.ph
  %15 = add nsw i64 %7, -4
  %16 = sdiv i64 %15, 3
  %17 = add nsw i64 %16, 1
  %18 = add nsw i64 %16, 3
  br label %24

19:                                               ; preds = %.lr.ph
  %20 = add nsw i64 %7, -5
  %21 = sdiv i64 %20, 3
  %22 = add nsw i64 %21, 2
  %23 = add nsw i64 %21, 3
  br label %24

24:                                               ; preds = %.lr.ph, %14, %19, %9
  %.113 = phi i64 [ %12, %9 ], [ %17, %14 ], [ %22, %19 ], [ %.01216, %.lr.ph ]
  %.111 = phi i64 [ %13, %9 ], [ %18, %14 ], [ %23, %19 ], [ %.01017, %.lr.ph ]
  %.1 = phi i64 [ %11, %9 ], [ %16, %14 ], [ %21, %19 ], [ %.018, %.lr.ph ]
  %25 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %.113, i64 noundef %.111, i64 noundef %.1)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  %26 = load i64, ptr %1, align 8, !tbaa !5
  %27 = add nsw i64 %26, -1
  store i64 %27, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %26, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9

._crit_edge:                                      ; preds = %24, %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: nofree nounwind
declare noundef i32 @printf(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

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"}


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