; LLVM IR from DionysiosB/CodeForces :: 0800-0899/897B-ChthollysRequest.ll (Z3zcyx)

; 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"

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }

; Function Attrs: mustprogress uwtable
define dso_local noundef i64 @_Z3zcyx(i64 noundef %0) #0 personality ptr @__gxx_personality_v0 {
  %2 = alloca i64, align 8
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca i64, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  store i64 %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 24, ptr %3) #3
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  store i64 0, ptr %4, align 8, !tbaa !5
  br label %10

10:                                               ; preds = %17, %1
  %11 = load i64, ptr %2, align 8, !tbaa !5
  %12 = icmp sgt i64 %11, 0
  br i1 %12, label %13, label %24

13:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  %14 = load i64, ptr %2, align 8, !tbaa !5
  %15 = srem i64 %14, 10
  %16 = trunc i64 %15 to i32
  store i32 %16, ptr %5, align 4, !tbaa !9
  invoke void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr noundef nonnull align 4 dereferenceable(4) %5)
          to label %17 unwind label %20

17:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  %18 = load i64, ptr %2, align 8, !tbaa !5
  %19 = sdiv i64 %18, 10
  store i64 %19, ptr %2, align 8, !tbaa !5
  br label %10, !llvm.loop !11

20:                                               ; preds = %13
  %21 = landingpad { ptr, i32 }
          cleanup
  %22 = extractvalue { ptr, i32 } %21, 0
  store ptr %22, ptr %6, align 8
  %23 = extractvalue { ptr, i32 } %21, 1
  store i32 %23, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #3
  br label %61

24:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %25 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #3
  %26 = sub i64 %25, 1
  store i64 %26, ptr %8, align 8, !tbaa !5
  br label %27

27:                                               ; preds = %39, %24
  %28 = load i64, ptr %8, align 8, !tbaa !5
  %29 = icmp sge i64 %28, 0
  br i1 %29, label %31, label %30

30:                                               ; preds = %27
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %42

31:                                               ; preds = %27
  %32 = load i64, ptr %4, align 8, !tbaa !5
  %33 = mul nsw i64 10, %32
  %34 = load i64, ptr %8, align 8, !tbaa !5
  %35 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %34) #3
  %36 = load i32, ptr %35, align 4, !tbaa !9
  %37 = sext i32 %36 to i64
  %38 = add nsw i64 %33, %37
  store i64 %38, ptr %4, align 8, !tbaa !5
  br label %39

39:                                               ; preds = %31
  %40 = load i64, ptr %8, align 8, !tbaa !5
  %41 = add nsw i64 %40, -1
  store i64 %41, ptr %8, align 8, !tbaa !5
  br label %27, !llvm.loop !13

42:                                               ; preds = %30
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  store i64 0, ptr %9, align 8, !tbaa !5
  br label %43

43:                                               ; preds = %56, %42
  %44 = load i64, ptr %9, align 8, !tbaa !5
  %45 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #3
  %46 = icmp ult i64 %44, %45
  br i1 %46, label %48, label %47

47:                                               ; preds = %43
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  br label %59

48:                                               ; preds = %43
  %49 = load i64, ptr %4, align 8, !tbaa !5
  %50 = mul nsw i64 10, %49
  %51 = load i64, ptr %9, align 8, !tbaa !5
  %52 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %51) #3
  %53 = load i32, ptr %52, align 4, !tbaa !9
  %54 = sext i32 %53 to i64
  %55 = add nsw i64 %50, %54
  store i64 %55, ptr %4, align 8, !tbaa !5
  br label %56

56:                                               ; preds = %48
  %57 = load i64, ptr %9, align 8, !tbaa !5
  %58 = add nsw i64 %57, 1
  store i64 %58, ptr %9, align 8, !tbaa !5
  br label %43, !llvm.loop !14

59:                                               ; preds = %47
  %60 = load i64, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #3
  ret i64 %60

61:                                               ; preds = %20
  %62 = load ptr, ptr %6, align 8
  %63 = load i32, ptr %7, align 4
  %64 = insertvalue { ptr, i32 } poison, ptr %62, 0
  %65 = insertvalue { ptr, i32 } %64, i32 %63, 1
  resume { ptr, i32 } %65
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

attributes #0 = { mustprogress 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 = { mustprogress 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 #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 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = distinct !{!14, !12}


; 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"

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }

; Function Attrs: mustprogress uwtable
define dso_local noundef i64 @_Z3zcyx(i64 noundef %0) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %2 = alloca %"class.std::vector", align 8
  %3 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %2) #3
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #3
  %4 = icmp sgt i64 %0, 0
  br i1 %4, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %1, %8
  %.01416 = phi i64 [ %6, %8 ], [ %0, %1 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #3
  %5 = urem i64 %.01416, 10
  %6 = udiv i64 %.01416, 10
  %7 = trunc nuw nsw i64 %5 to i32
  store i32 %7, ptr %3, align 4, !tbaa !5
  invoke void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24) %2, ptr noundef nonnull align 4 dereferenceable(4) %3)
          to label %8 unwind label %9

8:                                                ; preds = %.lr.ph
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #3
  %.not = icmp ult i64 %.01416, 10
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9

9:                                                ; preds = %.lr.ph
  %10 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #3
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #3
  resume { ptr, i32 } %10

._crit_edge:                                      ; preds = %8, %1
  %11 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #3
  %.01317 = add i64 %11, -1
  %12 = icmp sgt i64 %.01317, -1
  br i1 %12, label %.lr.ph21, label %.preheader

.preheader:                                       ; preds = %.lr.ph21, %._crit_edge
  %.015.lcssa = phi i64 [ 0, %._crit_edge ], [ %18, %.lr.ph21 ]
  %13 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #3
  %.not27 = icmp eq i64 %13, 0
  br i1 %.not27, label %._crit_edge25, label %.lr.ph24

.lr.ph21:                                         ; preds = %._crit_edge, %.lr.ph21
  %.01319 = phi i64 [ %.013, %.lr.ph21 ], [ %.01317, %._crit_edge ]
  %.01518 = phi i64 [ %18, %.lr.ph21 ], [ 0, %._crit_edge ]
  %14 = mul nsw i64 %.01518, 10
  %15 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %.01319) #3
  %16 = load i32, ptr %15, align 4, !tbaa !5
  %17 = sext i32 %16 to i64
  %18 = add nsw i64 %14, %17
  %.013 = add nsw i64 %.01319, -1
  %.not30 = icmp eq i64 %.01319, 0
  br i1 %.not30, label %.preheader, label %.lr.ph21, !llvm.loop !11

._crit_edge25:                                    ; preds = %.lr.ph24, %.preheader
  %.1.lcssa = phi i64 [ %.015.lcssa, %.preheader ], [ %23, %.lr.ph24 ]
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #3
  ret i64 %.1.lcssa

.lr.ph24:                                         ; preds = %.preheader, %.lr.ph24
  %.023 = phi i64 [ %24, %.lr.ph24 ], [ 0, %.preheader ]
  %.122 = phi i64 [ %23, %.lr.ph24 ], [ %.015.lcssa, %.preheader ]
  %19 = mul nsw i64 %.122, 10
  %20 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %.023) #3
  %21 = load i32, ptr %20, align 4, !tbaa !5
  %22 = sext i32 %21 to i64
  %23 = add nsw i64 %19, %22
  %24 = add nuw nsw i64 %.023, 1
  %25 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #3
  %26 = icmp ult i64 %24, %25
  br i1 %26, label %.lr.ph24, label %._crit_edge25, !llvm.loop !12
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

attributes #0 = { mustprogress 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 = { mustprogress 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 #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 = !{!"int", !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}
!12 = distinct !{!12, !10}


; Effective O3 passes: CorrelatedValuePropagationPass,DivRemPairsPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass