; LLVM IR from DionysiosB/CodeForces :: 2031A-PenchickAndModernMonument (main)

; 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::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<long, std::pair<const long, long>, std::_Select1st<std::pair<const long, long>>, std::less<long>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<long, std::pair<const long, long>, std::_Select1st<std::pair<const long, long>>, std::less<long>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }

@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = alloca %"class.std::map", align 8
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #5
  %10 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  br label %11

11:                                               ; preds = %54, %0
  %12 = load i64, ptr %2, align 8, !tbaa !5
  %13 = add nsw i64 %12, -1
  store i64 %13, ptr %2, align 8, !tbaa !5
  %14 = icmp ne i64 %12, 0
  br i1 %14, label %15, label %60

15:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  %16 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %3)
  call void @llvm.lifetime.start.p0(i64 48, ptr %4) #5
  call void @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %4) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  store i64 0, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #5
  store i64 0, ptr %6, align 8, !tbaa !5
  br label %17

17:                                               ; preds = %42, %15
  %18 = load i64, ptr %6, align 8, !tbaa !5
  %19 = load i64, ptr %3, align 8, !tbaa !5
  %20 = icmp slt i64 %18, %19
  br i1 %20, label %22, label %21

21:                                               ; preds = %17
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  br label %49

22:                                               ; preds = %17
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  %23 = invoke i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %7)
          to label %24 unwind label %45

24:                                               ; preds = %22
  %25 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %4, ptr noundef nonnull align 8 dereferenceable(8) %7)
          to label %26 unwind label %45

26:                                               ; preds = %24
  %27 = load i64, ptr %25, align 8, !tbaa !5
  %28 = add nsw i64 %27, 1
  store i64 %28, ptr %25, align 8, !tbaa !5
  %29 = load i64, ptr %5, align 8, !tbaa !5
  %30 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %4, ptr noundef nonnull align 8 dereferenceable(8) %7)
          to label %31 unwind label %45

31:                                               ; preds = %26
  %32 = load i64, ptr %30, align 8, !tbaa !5
  %33 = icmp sgt i64 %29, %32
  br i1 %33, label %34, label %36

34:                                               ; preds = %31
  %35 = load i64, ptr %5, align 8, !tbaa !5
  br label %40

36:                                               ; preds = %31
  %37 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %4, ptr noundef nonnull align 8 dereferenceable(8) %7)
          to label %38 unwind label %45

38:                                               ; preds = %36
  %39 = load i64, ptr %37, align 8, !tbaa !5
  br label %40

40:                                               ; preds = %38, %34
  %41 = phi i64 [ %35, %34 ], [ %39, %38 ]
  store i64 %41, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  br label %42

42:                                               ; preds = %40
  %43 = load i64, ptr %6, align 8, !tbaa !5
  %44 = add nsw i64 %43, 1
  store i64 %44, ptr %6, align 8, !tbaa !5
  br label %17, !llvm.loop !9

45:                                               ; preds = %36, %26, %24, %22
  %46 = landingpad { ptr, i32 }
          cleanup
  %47 = extractvalue { ptr, i32 } %46, 0
  store ptr %47, ptr %8, align 8
  %48 = extractvalue { ptr, i32 } %46, 1
  store i32 %48, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  br label %59

49:                                               ; preds = %21
  %50 = load i64, ptr %3, align 8, !tbaa !5
  %51 = load i64, ptr %5, align 8, !tbaa !5
  %52 = sub nsw i64 %50, %51
  %53 = invoke i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %52)
          to label %54 unwind label %55

54:                                               ; preds = %49
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  call void @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %4) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  br label %11, !llvm.loop !11

55:                                               ; preds = %49
  %56 = landingpad { ptr, i32 }
          cleanup
  %57 = extractvalue { ptr, i32 } %56, 0
  store ptr %57, ptr %8, align 8
  %58 = extractvalue { ptr, i32 } %56, 1
  store i32 %58, ptr %9, align 4
  br label %59

59:                                               ; preds = %55, %45
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  call void @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %4) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  br label %62

60:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  %61 = load i32, ptr %1, align 4
  ret i32 %61

62:                                               ; preds = %59
  %63 = load ptr, ptr %8, align 8
  %64 = load i32, ptr %9, align 4
  %65 = insertvalue { ptr, i32 } poison, ptr %63, 0
  %66 = insertvalue { ptr, i32 } %65, i32 %64, 1
  resume { ptr, i32 } %66
}

; 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: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) #4 align 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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #3 align 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 = { 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 #4 = { 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 #5 = { 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"}
!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"

%"class.std::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<long, std::pair<const long, long>, std::_Select1st<std::pair<const long, long>>, std::less<long>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<long, std::pair<const long, long>, std::_Select1st<std::pair<const long, long>>, std::less<long>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }

@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i64, align 8
  %2 = alloca i64, align 8
  %3 = alloca %"class.std::map", align 8
  %4 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #5
  %5 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %6 = load i64, ptr %1, align 8, !tbaa !5
  %7 = add nsw i64 %6, -1
  store i64 %7, ptr %1, align 8, !tbaa !5
  %.not14 = icmp eq i64 %6, 0
  br i1 %.not14, label %._crit_edge17, label %.lr.ph16

.lr.ph16:                                         ; preds = %0, %._crit_edge
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #5
  %8 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %2)
  call void @llvm.lifetime.start.p0(i64 48, ptr nonnull %3) #5
  call void @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #5
  %9 = load i64, ptr %2, align 8, !tbaa !5
  %10 = icmp sgt i64 %9, 0
  br i1 %10, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %28, %.lr.ph16
  %.0.lcssa = phi i64 [ 0, %.lr.ph16 ], [ %29, %28 ]
  %.lcssa = phi i64 [ %9, %.lr.ph16 ], [ %31, %28 ]
  %11 = sub nsw i64 %.lcssa, %.0.lcssa
  %12 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %11)
  call void @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #5
  %13 = load i64, ptr %1, align 8, !tbaa !5
  %14 = add nsw i64 %13, -1
  store i64 %14, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %13, 0
  br i1 %.not, label %._crit_edge17, label %.lr.ph16, !llvm.loop !9

.lr.ph:                                           ; preds = %.lr.ph16, %28
  %.012 = phi i64 [ %29, %28 ], [ 0, %.lr.ph16 ]
  %.0711 = phi i64 [ %30, %28 ], [ 0, %.lr.ph16 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #5
  %15 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %4)
  %16 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 8 dereferenceable(8) %4)
          to label %17 unwind label %33

17:                                               ; preds = %.lr.ph
  %18 = load i64, ptr %16, align 8, !tbaa !5
  %19 = add nsw i64 %18, 1
  store i64 %19, ptr %16, align 8, !tbaa !5
  %20 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 8 dereferenceable(8) %4)
          to label %21 unwind label %33

21:                                               ; preds = %17
  %22 = load i64, ptr %20, align 8, !tbaa !5
  %23 = icmp sgt i64 %.012, %22
  br i1 %23, label %28, label %24

24:                                               ; preds = %21
  %25 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 8 dereferenceable(8) %4)
          to label %26 unwind label %33

26:                                               ; preds = %24
  %27 = load i64, ptr %25, align 8, !tbaa !5
  br label %28

28:                                               ; preds = %21, %26
  %29 = phi i64 [ %27, %26 ], [ %.012, %21 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  %30 = add nuw nsw i64 %.0711, 1
  %31 = load i64, ptr %2, align 8, !tbaa !5
  %32 = icmp slt i64 %30, %31
  br i1 %32, label %.lr.ph, label %._crit_edge, !llvm.loop !11

33:                                               ; preds = %24, %17, %.lr.ph
  %34 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  call void @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  resume { ptr, i32 } %34

._crit_edge17:                                    ; preds = %._crit_edge, %0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  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 nounwind uwtable
declare dso_local void @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4 align 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: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIllSt4lessIlESaISt4pairIKllEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #3 align 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 = { 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 = { 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 #4 = { 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 #5 = { 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"}
!11 = distinct !{!11, !10}


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