; LLVM IR from DionysiosB/CodeForces :: 0700-0799 (722D-GeneratingSets)

; 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::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<long, long, std::_Identity<long>, std::less<long>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<long, long, std::_Identity<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 }
%"struct.std::pair" = type <{ %"struct.std::_Rb_tree_const_iterator", i8, [7 x i8] }>
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [1 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 %"class.std::set", align 8
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca %"struct.std::pair", align 8
  %9 = alloca i8, align 1
  %10 = alloca i64, align 8
  %11 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %12 = alloca i64, align 8
  %13 = alloca %"struct.std::pair", align 8
  %14 = alloca i32, align 4
  %15 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %16 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %17 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #5
  %18 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  call void @llvm.lifetime.start.p0(i64 48, ptr %3) #5
  call void @_ZNSt3setIlSt4lessIlESaIlEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #5
  store i64 0, ptr %4, align 8, !tbaa !5
  br label %19

19:                                               ; preds = %33, %0
  %20 = load i64, ptr %4, align 8, !tbaa !5
  %21 = load i64, ptr %2, align 8, !tbaa !5
  %22 = icmp slt i64 %20, %21
  br i1 %22, label %24, label %23

23:                                               ; preds = %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  br label %40

24:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  %25 = invoke i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %5)
          to label %26 unwind label %36

26:                                               ; preds = %24
  %27 = invoke { ptr, i8 } @_ZNSt3setIlSt4lessIlESaIlEE6insertERKl(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 8 dereferenceable(8) %5)
          to label %28 unwind label %36

28:                                               ; preds = %26
  %29 = getelementptr inbounds { ptr, i8 }, ptr %8, i32 0, i32 0
  %30 = extractvalue { ptr, i8 } %27, 0
  store ptr %30, ptr %29, align 8
  %31 = getelementptr inbounds { ptr, i8 }, ptr %8, i32 0, i32 1
  %32 = extractvalue { ptr, i8 } %27, 1
  store i8 %32, ptr %31, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  br label %33

33:                                               ; preds = %28
  %34 = load i64, ptr %4, align 8, !tbaa !5
  %35 = add nsw i64 %34, 1
  store i64 %35, ptr %4, align 8, !tbaa !5
  br label %19, !llvm.loop !9

36:                                               ; preds = %26, %24
  %37 = landingpad { ptr, i32 }
          cleanup
  %38 = extractvalue { ptr, i32 } %37, 0
  store ptr %38, ptr %6, align 8
  %39 = extractvalue { ptr, i32 } %37, 1
  store i32 %39, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  br label %111

40:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #5
  store i8 0, ptr %9, align 1, !tbaa !11
  br label %41

41:                                               ; preds = %81, %40
  br label %42

42:                                               ; preds = %41
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #5
  %43 = call ptr @_ZNKSt3setIlSt4lessIlESaIlEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %3) #5
  %44 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %11, i32 0, i32 0
  store ptr %43, ptr %44, align 8
  %45 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIlEmmEv(ptr noundef nonnull align 8 dereferenceable(8) %11) #5
  %46 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIlEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %45) #5
  %47 = load i64, ptr %46, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #5
  store i64 %47, ptr %10, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #5
  %48 = load i64, ptr %10, align 8, !tbaa !5
  store i64 %48, ptr %12, align 8, !tbaa !5
  br label %49

49:                                               ; preds = %58, %42
  %50 = load i64, ptr %10, align 8, !tbaa !5
  %51 = icmp sgt i64 %50, 0
  br i1 %51, label %52, label %56

52:                                               ; preds = %49
  %53 = invoke noundef i64 @_ZNKSt3setIlSt4lessIlESaIlEE5countERKl(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 8 dereferenceable(8) %10)
          to label %54 unwind label %61

54:                                               ; preds = %52
  %55 = icmp ne i64 %53, 0
  br label %56

56:                                               ; preds = %54, %49
  %57 = phi i1 [ false, %49 ], [ %55, %54 ]
  br i1 %57, label %58, label %65

58:                                               ; preds = %56
  %59 = load i64, ptr %10, align 8, !tbaa !5
  %60 = sdiv i64 %59, 2
  store i64 %60, ptr %10, align 8, !tbaa !5
  br label %49, !llvm.loop !13

61:                                               ; preds = %70, %68, %52
  %62 = landingpad { ptr, i32 }
          cleanup
  %63 = extractvalue { ptr, i32 } %62, 0
  store ptr %63, ptr %6, align 8
  %64 = extractvalue { ptr, i32 } %62, 1
  store i32 %64, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  br label %110

65:                                               ; preds = %56
  %66 = load i64, ptr %10, align 8, !tbaa !5
  %67 = icmp sgt i64 %66, 0
  br i1 %67, label %68, label %77

68:                                               ; preds = %65
  %69 = invoke noundef i64 @_ZNSt3setIlSt4lessIlESaIlEE5eraseERKl(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 8 dereferenceable(8) %12)
          to label %70 unwind label %61

70:                                               ; preds = %68
  %71 = invoke { ptr, i8 } @_ZNSt3setIlSt4lessIlESaIlEE6insertERKl(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 8 dereferenceable(8) %10)
          to label %72 unwind label %61

72:                                               ; preds = %70
  %73 = getelementptr inbounds { ptr, i8 }, ptr %13, i32 0, i32 0
  %74 = extractvalue { ptr, i8 } %71, 0
  store ptr %74, ptr %73, align 8
  %75 = getelementptr inbounds { ptr, i8 }, ptr %13, i32 0, i32 1
  %76 = extractvalue { ptr, i8 } %71, 1
  store i8 %76, ptr %75, align 8
  br label %78

77:                                               ; preds = %65
  store i32 6, ptr %14, align 4
  br label %79

78:                                               ; preds = %72
  store i32 0, ptr %14, align 4
  br label %79

79:                                               ; preds = %78, %77
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  %80 = load i32, ptr %14, align 4
  switch i32 %80, label %117 [
    i32 0, label %81
    i32 6, label %82
  ]

81:                                               ; preds = %79
  br label %41, !llvm.loop !14

82:                                               ; preds = %79
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #5
  %83 = call ptr @_ZNKSt3setIlSt4lessIlESaIlEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %3) #5
  %84 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %15, i32 0, i32 0
  store ptr %83, ptr %84, align 8
  br label %85

85:                                               ; preds = %95, %82
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #5
  %86 = call ptr @_ZNKSt3setIlSt4lessIlESaIlEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %3) #5
  %87 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %16, i32 0, i32 0
  store ptr %86, ptr %87, align 8
  %88 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIlES2_(ptr noundef nonnull align 8 dereferenceable(8) %15, ptr noundef nonnull align 8 dereferenceable(8) %16) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #5
  br i1 %88, label %90, label %89

89:                                               ; preds = %85
  store i32 9, ptr %14, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #5
  br label %102

90:                                               ; preds = %85
  %91 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIlEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %15) #5
  %92 = load i64, ptr %91, align 8, !tbaa !5
  %93 = invoke i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %92)
          to label %94 unwind label %98

94:                                               ; preds = %90
  br label %95

95:                                               ; preds = %94
  %96 = call ptr @_ZNSt23_Rb_tree_const_iteratorIlEppEi(ptr noundef nonnull align 8 dereferenceable(8) %15, i32 noundef 0) #5
  %97 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %17, i32 0, i32 0
  store ptr %96, ptr %97, align 8
  br label %85, !llvm.loop !15

98:                                               ; preds = %90
  %99 = landingpad { ptr, i32 }
          cleanup
  %100 = extractvalue { ptr, i32 } %99, 0
  store ptr %100, ptr %6, align 8
  %101 = extractvalue { ptr, i32 } %99, 1
  store i32 %101, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #5
  br label %110

102:                                              ; preds = %89
  %103 = invoke i32 @puts(ptr noundef @.str.2)
          to label %104 unwind label %106

104:                                              ; preds = %102
  store i32 0, ptr %1, align 4
  store i32 1, ptr %14, align 4
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #5
  call void @_ZNSt3setIlSt4lessIlESaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  %105 = load i32, ptr %1, align 4
  ret i32 %105

106:                                              ; preds = %102
  %107 = landingpad { ptr, i32 }
          cleanup
  %108 = extractvalue { ptr, i32 } %107, 0
  store ptr %108, ptr %6, align 8
  %109 = extractvalue { ptr, i32 } %107, 1
  store i32 %109, ptr %7, align 4
  br label %110

110:                                              ; preds = %106, %98, %61
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #5
  br label %111

111:                                              ; preds = %110, %36
  call void @_ZNSt3setIlSt4lessIlESaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  br label %112

112:                                              ; preds = %111
  %113 = load ptr, ptr %6, align 8
  %114 = load i32, ptr %7, align 4
  %115 = insertvalue { ptr, i32 } poison, ptr %113, 0
  %116 = insertvalue { ptr, i32 } %115, i32 %114, 1
  resume { ptr, i32 } %116

117:                                              ; preds = %79
  unreachable
}

; 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 @_ZNSt3setIlSt4lessIlESaIlEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt3setIlSt4lessIlESaIlEE6insertERKl(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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIlSt4lessIlESaIlEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIlEmmEv(ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIlEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNKSt3setIlSt4lessIlESaIlEE5countERKl(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNSt3setIlSt4lessIlESaIlEE5eraseERKl(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIlSt4lessIlESaIlEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIlES2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #3

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt23_Rb_tree_const_iteratorIlEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #3 align 2

declare i32 @puts(ptr noundef) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setIlSt4lessIlESaIlEED2Ev(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 = !{!12, !12, i64 0}
!12 = !{!"bool", !7, i64 0}
!13 = distinct !{!13, !10}
!14 = distinct !{!14, !10}
!15 = distinct !{!15, !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::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<long, long, std::_Identity<long>, std::less<long>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<long, long, std::_Identity<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 }
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [1 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 %"class.std::set", align 8
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %5 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %6 = alloca i64, align 8
  %7 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %8 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #5
  %9 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  call void @llvm.lifetime.start.p0(i64 48, ptr nonnull %2) #5
  call void @_ZNSt3setIlSt4lessIlESaIlEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #5
  %10 = load i64, ptr %1, align 8, !tbaa !5
  %11 = icmp sgt i64 %10, 0
  br i1 %11, label %.lr.ph, label %.preheader

.preheader:                                       ; preds = %19, %0
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #5
  %12 = call ptr @_ZNKSt3setIlSt4lessIlESaIlEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #5
  store ptr %12, ptr %5, align 8
  %13 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIlEmmEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #5
  %14 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIlEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %13) #5
  %15 = load i64, ptr %14, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #5
  store i64 %15, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #5
  store i64 %15, ptr %6, align 8, !tbaa !5
  %16 = icmp sgt i64 %15, 0
  br i1 %16, label %.lr.ph15, label %.critedge.thread

.lr.ph:                                           ; preds = %0, %19
  %.0814 = phi i64 [ %20, %19 ], [ 0, %0 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #5
  %17 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %3)
  %18 = invoke { ptr, i8 } @_ZNSt3setIlSt4lessIlESaIlEE6insertERKl(ptr noundef nonnull align 8 dereferenceable(48) %2, ptr noundef nonnull align 8 dereferenceable(8) %3)
          to label %19 unwind label %23

19:                                               ; preds = %.lr.ph
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #5
  %20 = add nuw nsw i64 %.0814, 1
  %21 = load i64, ptr %1, align 8, !tbaa !5
  %22 = icmp slt i64 %20, %21
  br i1 %22, label %.lr.ph, label %.preheader, !llvm.loop !9

23:                                               ; preds = %.lr.ph
  %24 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #5
  br label %53

.lr.ph15:                                         ; preds = %.preheader, %.lr.ph15.backedge
  %25 = invoke noundef i64 @_ZNKSt3setIlSt4lessIlESaIlEE5countERKl(ptr noundef nonnull align 8 dereferenceable(48) %2, ptr noundef nonnull align 8 dereferenceable(8) %4)
          to label %26 unwind label %.loopexit

26:                                               ; preds = %.lr.ph15
  %.not = icmp eq i64 %25, 0
  %.pre.pre = load i64, ptr %4, align 8, !tbaa !5
  br i1 %.not, label %.critedge, label %27

27:                                               ; preds = %26
  %28 = sdiv i64 %.pre.pre, 2
  store i64 %28, ptr %4, align 8, !tbaa !5
  %29 = icmp sgt i64 %.pre.pre, 1
  br i1 %29, label %.lr.ph15.backedge, label %.critedge

.lr.ph15.backedge:                                ; preds = %27, %37
  br label %.lr.ph15, !llvm.loop !11

.loopexit:                                        ; preds = %.lr.ph15
  %lpad.loopexit = landingpad { ptr, i32 }
          cleanup
  br label %30

.loopexit.split-lp:                               ; preds = %33, %35
  %lpad.loopexit.split-lp = landingpad { ptr, i32 }
          cleanup
  br label %30

30:                                               ; preds = %.loopexit.split-lp, %.loopexit
  %lpad.phi = phi { ptr, i32 } [ %lpad.loopexit, %.loopexit ], [ %lpad.loopexit.split-lp, %.loopexit.split-lp ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  br label %53

.critedge:                                        ; preds = %26, %27
  %31 = phi i64 [ %28, %27 ], [ %.pre.pre, %26 ]
  %32 = icmp sgt i64 %31, 0
  br i1 %32, label %33, label %.critedge.thread

33:                                               ; preds = %.critedge
  %34 = invoke noundef i64 @_ZNSt3setIlSt4lessIlESaIlEE5eraseERKl(ptr noundef nonnull align 8 dereferenceable(48) %2, ptr noundef nonnull align 8 dereferenceable(8) %6)
          to label %35 unwind label %.loopexit.split-lp

35:                                               ; preds = %33
  %36 = invoke { ptr, i8 } @_ZNSt3setIlSt4lessIlESaIlEE6insertERKl(ptr noundef nonnull align 8 dereferenceable(48) %2, ptr noundef nonnull align 8 dereferenceable(8) %4)
          to label %37 unwind label %.loopexit.split-lp

37:                                               ; preds = %35
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #5
  %38 = call ptr @_ZNKSt3setIlSt4lessIlESaIlEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #5
  store ptr %38, ptr %5, align 8
  %39 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIlEmmEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #5
  %40 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIlEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %39) #5
  %41 = load i64, ptr %40, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #5
  store i64 %41, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #5
  store i64 %41, ptr %6, align 8, !tbaa !5
  %42 = icmp sgt i64 %41, 0
  br i1 %42, label %.lr.ph15.backedge, label %.critedge.thread

.critedge.thread:                                 ; preds = %.critedge, %37, %.preheader
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #5
  %43 = call ptr @_ZNKSt3setIlSt4lessIlESaIlEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #5
  store ptr %43, ptr %7, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #5
  %44 = call ptr @_ZNKSt3setIlSt4lessIlESaIlEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #5
  store ptr %44, ptr %8, align 8
  %45 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIlES2_(ptr noundef nonnull align 8 dereferenceable(8) %7, ptr noundef nonnull align 8 dereferenceable(8) %8) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #5
  br i1 %45, label %.lr.ph17, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph17, %.critedge.thread
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #5
  %46 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.2)
  call void @_ZNSt3setIlSt4lessIlESaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  ret i32 0

.lr.ph17:                                         ; preds = %.critedge.thread, %.lr.ph17
  %47 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIlEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %7) #5
  %48 = load i64, ptr %47, align 8, !tbaa !5
  %49 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %48)
  %50 = call ptr @_ZNSt23_Rb_tree_const_iteratorIlEppEi(ptr noundef nonnull align 8 dereferenceable(8) %7, i32 noundef 0) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #5
  %51 = call ptr @_ZNKSt3setIlSt4lessIlESaIlEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #5
  store ptr %51, ptr %8, align 8
  %52 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIlES2_(ptr noundef nonnull align 8 dereferenceable(8) %7, ptr noundef nonnull align 8 dereferenceable(8) %8) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #5
  br i1 %52, label %.lr.ph17, label %._crit_edge, !llvm.loop !12

53:                                               ; preds = %30, %23
  %.pn = phi { ptr, i32 } [ %24, %23 ], [ %lpad.phi, %30 ]
  call void @_ZNSt3setIlSt4lessIlESaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  resume { ptr, i32 } %.pn
}

; 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 @_ZNSt3setIlSt4lessIlESaIlEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt3setIlSt4lessIlESaIlEE6insertERKl(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: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIlSt4lessIlESaIlEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIlEmmEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIlEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNKSt3setIlSt4lessIlESaIlEE5countERKl(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNSt3setIlSt4lessIlESaIlEE5eraseERKl(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIlSt4lessIlESaIlEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIlES2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt23_Rb_tree_const_iteratorIlEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #3 align 2

; Function Attrs: nofree nounwind
declare noundef i32 @puts(ptr nocapture noundef readonly) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setIlSt4lessIlESaIlEED2Ev(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}
!12 = distinct !{!12, !10}


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