; LLVM IR from DionysiosB/CodeForces :: 1100-1199 (1141A-Game23)

; 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 [3 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 i32, align 4
  %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
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2, ptr noundef %3)
  %8 = load i64, ptr %3, align 8, !tbaa !5
  %9 = load i64, ptr %2, align 8, !tbaa !5
  %10 = srem i64 %8, %9
  %11 = icmp sgt i64 %10, 0
  br i1 %11, label %12, label %14

12:                                               ; preds = %0
  %13 = call i32 @puts(ptr noundef @.str.1)
  store i32 0, ptr %1, align 4
  store i32 1, ptr %4, align 4
  br label %46

14:                                               ; preds = %0
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %15 = load i64, ptr %3, align 8, !tbaa !5
  %16 = load i64, ptr %2, align 8, !tbaa !5
  %17 = sdiv i64 %15, %16
  store i64 %17, 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 %18

18:                                               ; preds = %22, %14
  %19 = load i64, ptr %5, align 8, !tbaa !5
  %20 = srem i64 %19, 2
  %21 = icmp eq i64 %20, 0
  br i1 %21, label %22, label %27

22:                                               ; preds = %18
  %23 = load i64, ptr %5, align 8, !tbaa !5
  %24 = sdiv i64 %23, 2
  store i64 %24, ptr %5, align 8, !tbaa !5
  %25 = load i64, ptr %6, align 8, !tbaa !5
  %26 = add nsw i64 %25, 1
  store i64 %26, ptr %6, align 8, !tbaa !5
  br label %18, !llvm.loop !9

27:                                               ; preds = %18
  br label %28

28:                                               ; preds = %32, %27
  %29 = load i64, ptr %5, align 8, !tbaa !5
  %30 = srem i64 %29, 3
  %31 = icmp eq i64 %30, 0
  br i1 %31, label %32, label %37

32:                                               ; preds = %28
  %33 = load i64, ptr %5, align 8, !tbaa !5
  %34 = sdiv i64 %33, 3
  store i64 %34, ptr %5, align 8, !tbaa !5
  %35 = load i64, ptr %6, align 8, !tbaa !5
  %36 = add nsw i64 %35, 1
  store i64 %36, ptr %6, align 8, !tbaa !5
  br label %28, !llvm.loop !11

37:                                               ; preds = %28
  %38 = load i64, ptr %5, align 8, !tbaa !5
  %39 = icmp eq i64 %38, 1
  br i1 %39, label %40, label %42

40:                                               ; preds = %37
  %41 = load i64, ptr %6, align 8, !tbaa !5
  br label %43

42:                                               ; preds = %37
  br label %43

43:                                               ; preds = %42, %40
  %44 = phi i64 [ %41, %40 ], [ -1, %42 ]
  %45 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i64 noundef %44)
  store i32 0, ptr %1, align 4
  store i32 1, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  br label %46

46:                                               ; preds = %43, %12
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  %47 = load i32, ptr %1, align 4
  ret i32 %47
}

; 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 @puts(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 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 [10 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 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
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  %3 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1, ptr noundef nonnull %2)
  %4 = load i64, ptr %2, align 8, !tbaa !5
  %5 = load i64, ptr %1, align 8, !tbaa !5
  %6 = srem i64 %4, %5
  %7 = sdiv i64 %4, %5
  %8 = icmp sgt i64 %6, 0
  br i1 %8, label %9, label %11

9:                                                ; preds = %0
  %10 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.1)
  br label %27

11:                                               ; preds = %0
  %12 = and i64 %7, 1
  %13 = icmp eq i64 %12, 0
  br i1 %13, label %.lr.ph, label %.preheader

.preheader:                                       ; preds = %.lr.ph, %11
  %.09.lcssa = phi i64 [ %7, %11 ], [ %16, %.lr.ph ]
  %.0.lcssa = phi i64 [ 0, %11 ], [ %17, %.lr.ph ]
  %14 = srem i64 %.09.lcssa, 3
  %15 = icmp eq i64 %14, 0
  br i1 %15, label %.lr.ph17, label %._crit_edge

.lr.ph:                                           ; preds = %11, %.lr.ph
  %.013 = phi i64 [ %17, %.lr.ph ], [ 0, %11 ]
  %.0912 = phi i64 [ %16, %.lr.ph ], [ %7, %11 ]
  %16 = ashr exact i64 %.0912, 1
  %17 = add nuw nsw i64 %.013, 1
  %18 = and i64 %.0912, 2
  %19 = icmp eq i64 %18, 0
  br i1 %19, label %.lr.ph, label %.preheader, !llvm.loop !9

.lr.ph17:                                         ; preds = %.preheader, %.lr.ph17
  %.116 = phi i64 [ %21, %.lr.ph17 ], [ %.0.lcssa, %.preheader ]
  %.11015 = phi i64 [ %20, %.lr.ph17 ], [ %.09.lcssa, %.preheader ]
  %20 = sdiv i64 %.11015, 3
  %21 = add nuw nsw i64 %.116, 1
  %22 = srem i64 %20, 3
  %23 = icmp eq i64 %22, 0
  br i1 %23, label %.lr.ph17, label %._crit_edge, !llvm.loop !11

._crit_edge:                                      ; preds = %.lr.ph17, %.preheader
  %.110.lcssa = phi i64 [ %.09.lcssa, %.preheader ], [ %20, %.lr.ph17 ]
  %.1.lcssa = phi i64 [ %.0.lcssa, %.preheader ], [ %21, %.lr.ph17 ]
  %24 = icmp eq i64 %.110.lcssa, 1
  %25 = select i1 %24, i64 %.1.lcssa, i64 -1
  %26 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i64 noundef %25)
  br label %27

27:                                               ; preds = %._crit_edge, %9
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  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 @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

; 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 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: DivRemPairsPass,EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass