; LLVM IR from kazunetakahashi/atcoder :: 2017/1021_ABC075 (D)

; 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, long long, std::_Identity<long long>, std::less<long long>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<long long, long long, std::_Identity<long long>, std::less<long 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 }
%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"struct.std::pair" = type <{ %"struct.std::_Rb_tree_const_iterator", i8, [7 x i8] }>
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

@N = external dso_local global i32, align 4
@K = external dso_local global i32, align 4
@x = external dso_local global [100 x i64], align 16
@y = external dso_local global [100 x i64], align 16
@Sx = external dso_local global %"class.std::set", align 8
@Sy = external dso_local global %"class.std::set", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_Z4areaxxxx(i64 noundef, i64 noundef, i64 noundef, i64 noundef) #1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #2 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca %"struct.std::pair", align 8
  %4 = alloca %"struct.std::pair", align 8
  %5 = alloca i64, align 8
  %6 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %7 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %8 = alloca i32, align 4
  %9 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %10 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %11 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %12 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %13 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %14 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %15 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  %16 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @N)
  %17 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %16, ptr noundef nonnull align 4 dereferenceable(4) @K)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #8
  store i32 0, ptr %2, align 4, !tbaa !5
  br label %18

18:                                               ; preds = %48, %0
  %19 = load i32, ptr %2, align 4, !tbaa !5
  %20 = load i32, ptr @N, align 4, !tbaa !5
  %21 = icmp slt i32 %19, %20
  br i1 %21, label %23, label %22

22:                                               ; preds = %18
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #8
  br label %51

23:                                               ; preds = %18
  %24 = load i32, ptr %2, align 4, !tbaa !5
  %25 = sext i32 %24 to i64
  %26 = getelementptr inbounds [100 x i64], ptr @x, i64 0, i64 %25
  %27 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %26)
  %28 = load i32, ptr %2, align 4, !tbaa !5
  %29 = sext i32 %28 to i64
  %30 = getelementptr inbounds [100 x i64], ptr @y, i64 0, i64 %29
  %31 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %27, ptr noundef nonnull align 8 dereferenceable(8) %30)
  %32 = load i32, ptr %2, align 4, !tbaa !5
  %33 = sext i32 %32 to i64
  %34 = getelementptr inbounds [100 x i64], ptr @x, i64 0, i64 %33
  %35 = call { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertERKx(ptr noundef nonnull align 8 dereferenceable(48) @Sx, ptr noundef nonnull align 8 dereferenceable(8) %34)
  %36 = getelementptr inbounds { ptr, i8 }, ptr %3, i32 0, i32 0
  %37 = extractvalue { ptr, i8 } %35, 0
  store ptr %37, ptr %36, align 8
  %38 = getelementptr inbounds { ptr, i8 }, ptr %3, i32 0, i32 1
  %39 = extractvalue { ptr, i8 } %35, 1
  store i8 %39, ptr %38, align 8
  %40 = load i32, ptr %2, align 4, !tbaa !5
  %41 = sext i32 %40 to i64
  %42 = getelementptr inbounds [100 x i64], ptr @y, i64 0, i64 %41
  %43 = call { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertERKx(ptr noundef nonnull align 8 dereferenceable(48) @Sy, ptr noundef nonnull align 8 dereferenceable(8) %42)
  %44 = getelementptr inbounds { ptr, i8 }, ptr %4, i32 0, i32 0
  %45 = extractvalue { ptr, i8 } %43, 0
  store ptr %45, ptr %44, align 8
  %46 = getelementptr inbounds { ptr, i8 }, ptr %4, i32 0, i32 1
  %47 = extractvalue { ptr, i8 } %43, 1
  store i8 %47, ptr %46, align 8
  br label %48

48:                                               ; preds = %23
  %49 = load i32, ptr %2, align 4, !tbaa !5
  %50 = add nsw i32 %49, 1
  store i32 %50, ptr %2, align 4, !tbaa !5
  br label %18, !llvm.loop !9

51:                                               ; preds = %22
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #8
  store i64 4000000000000000010, ptr %5, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #8
  %52 = call ptr @_ZNKSt3setIxSt4lessIxESaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) @Sx) #8
  %53 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %6, i32 0, i32 0
  store ptr %52, ptr %53, align 8
  br label %54

54:                                               ; preds = %100, %51
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #8
  %55 = call ptr @_ZNKSt3setIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) @Sx) #8
  %56 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %7, i32 0, i32 0
  store ptr %55, ptr %56, align 8
  %57 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #8
  br i1 %57, label %59, label %58

58:                                               ; preds = %54
  store i32 5, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #8
  br label %102

59:                                               ; preds = %54
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #8
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %9, ptr align 8 %6, i64 8, i1 false), !tbaa.struct !13
  br label %60

60:                                               ; preds = %97, %59
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #8
  %61 = call ptr @_ZNKSt3setIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) @Sx) #8
  %62 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %10, i32 0, i32 0
  store ptr %61, ptr %62, align 8
  %63 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8) %9, ptr noundef nonnull align 8 dereferenceable(8) %10) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #8
  br i1 %63, label %65, label %64

64:                                               ; preds = %60
  store i32 8, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #8
  br label %99

65:                                               ; preds = %60
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #8
  %66 = call ptr @_ZNKSt3setIxSt4lessIxESaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) @Sy) #8
  %67 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %11, i32 0, i32 0
  store ptr %66, ptr %67, align 8
  br label %68

68:                                               ; preds = %94, %65
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #8
  %69 = call ptr @_ZNKSt3setIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) @Sy) #8
  %70 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %12, i32 0, i32 0
  store ptr %69, ptr %70, align 8
  %71 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8) %11, ptr noundef nonnull align 8 dereferenceable(8) %12) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #8
  br i1 %71, label %73, label %72

72:                                               ; preds = %68
  store i32 11, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #8
  br label %96

73:                                               ; preds = %68
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #8
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %13, ptr align 8 %11, i64 8, i1 false), !tbaa.struct !13
  br label %74

74:                                               ; preds = %91, %73
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #8
  %75 = call ptr @_ZNKSt3setIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) @Sy) #8
  %76 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %14, i32 0, i32 0
  store ptr %75, ptr %76, align 8
  %77 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8) %13, ptr noundef nonnull align 8 dereferenceable(8) %14) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #8
  br i1 %77, label %79, label %78

78:                                               ; preds = %74
  store i32 14, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #8
  br label %93

79:                                               ; preds = %74
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #8
  %80 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #8
  %81 = load i64, ptr %80, align 8, !tbaa !11
  %82 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %9) #8
  %83 = load i64, ptr %82, align 8, !tbaa !11
  %84 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %11) #8
  %85 = load i64, ptr %84, align 8, !tbaa !11
  %86 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %13) #8
  %87 = load i64, ptr %86, align 8, !tbaa !11
  %88 = call noundef i64 @_Z4areaxxxx(i64 noundef %81, i64 noundef %83, i64 noundef %85, i64 noundef %87)
  store i64 %88, ptr %15, align 8, !tbaa !11
  %89 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %15)
  %90 = load i64, ptr %89, align 8, !tbaa !11
  store i64 %90, ptr %5, align 8, !tbaa !11
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #8
  br label %91

91:                                               ; preds = %79
  %92 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEv(ptr noundef nonnull align 8 dereferenceable(8) %13) #8
  br label %74, !llvm.loop !16

93:                                               ; preds = %78
  br label %94

94:                                               ; preds = %93
  %95 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEv(ptr noundef nonnull align 8 dereferenceable(8) %11) #8
  br label %68, !llvm.loop !17

96:                                               ; preds = %72
  br label %97

97:                                               ; preds = %96
  %98 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEv(ptr noundef nonnull align 8 dereferenceable(8) %9) #8
  br label %60, !llvm.loop !18

99:                                               ; preds = %64
  br label %100

100:                                              ; preds = %99
  %101 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #8
  br label %54, !llvm.loop !19

102:                                              ; preds = %58
  %103 = load i64, ptr %5, align 8, !tbaa !11
  %104 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %103)
  %105 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %104, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #8
  %106 = load i32, ptr %1, align 4
  ret i32 %106
}

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #3

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertERKx(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 @_ZNKSt3setIxSt4lessIxESaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) #1 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #5

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

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

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #7

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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 #3 = { "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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #6 = { inlinehint 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 #7 = { inlinehint 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 #8 = { 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 = !{!12, !12, i64 0}
!12 = !{!"long long", !7, i64 0}
!13 = !{i64 0, i64 8, !14}
!14 = !{!15, !15, i64 0}
!15 = !{!"any pointer", !7, i64 0}
!16 = distinct !{!16, !10}
!17 = distinct !{!17, !10}
!18 = distinct !{!18, !10}
!19 = distinct !{!19, !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, long long, std::_Identity<long long>, std::less<long long>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<long long, long long, std::_Identity<long long>, std::less<long 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 }
%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

@N = external dso_local global i32, align 4
@K = external dso_local global i32, align 4
@x = external dso_local global [100 x i64], align 16
@y = external dso_local global [100 x i64], align 16
@Sx = external dso_local global %"class.std::set", align 8
@Sy = external dso_local global %"class.std::set", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_Z4areaxxxx(i64 noundef, i64 noundef, i64 noundef, i64 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #2 {
  %1 = alloca i64, align 8
  %2 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %3 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %4 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %5 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %6 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %7 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %8 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %9 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %10 = alloca i64, align 8
  %11 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @N)
  %12 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %11, ptr noundef nonnull align 4 dereferenceable(4) @K)
  %13 = load i32, ptr @N, align 4, !tbaa !5
  %14 = icmp sgt i32 %13, 0
  br i1 %14, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %0
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #7
  store i64 4000000000000000010, ptr %1, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #7
  %15 = tail call ptr @_ZNKSt3setIxSt4lessIxESaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) @Sx) #7
  store ptr %15, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #7
  %16 = tail call ptr @_ZNKSt3setIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) @Sx) #7
  store ptr %16, ptr %3, align 8
  %17 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #7
  br i1 %17, label %.lr.ph20, label %._crit_edge21

.lr.ph:                                           ; preds = %0, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %0 ]
  %18 = getelementptr inbounds [100 x i64], ptr @x, i64 0, i64 %indvars.iv
  %19 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %18)
  %20 = getelementptr inbounds [100 x i64], ptr @y, i64 0, i64 %indvars.iv
  %21 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %19, ptr noundef nonnull align 8 dereferenceable(8) %20)
  %22 = tail call { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertERKx(ptr noundef nonnull align 8 dereferenceable(48) @Sx, ptr noundef nonnull align 8 dereferenceable(8) %18)
  %23 = tail call { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertERKx(ptr noundef nonnull align 8 dereferenceable(48) @Sy, ptr noundef nonnull align 8 dereferenceable(8) %20)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %24 = load i32, ptr @N, align 4, !tbaa !5
  %25 = sext i32 %24 to i64
  %26 = icmp slt i64 %indvars.iv.next, %25
  br i1 %26, label %.lr.ph, label %._crit_edge, !llvm.loop !11

._crit_edge21.loopexit:                           ; preds = %._crit_edge18
  %.pre = load i64, ptr %1, align 8, !tbaa !9
  br label %._crit_edge21

._crit_edge21:                                    ; preds = %._crit_edge21.loopexit, %._crit_edge
  %27 = phi i64 [ %.pre, %._crit_edge21.loopexit ], [ 4000000000000000010, %._crit_edge ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #7
  %28 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %27)
  %29 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %28, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #7
  ret i32 0

.lr.ph20:                                         ; preds = %._crit_edge, %._crit_edge18
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #7
  %30 = load i64, ptr %2, align 8, !tbaa !13
  store i64 %30, ptr %4, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #7
  %31 = call ptr @_ZNKSt3setIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) @Sx) #7
  store ptr %31, ptr %5, align 8
  %32 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %5) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #7
  br i1 %32, label %.lr.ph17, label %._crit_edge18

._crit_edge18:                                    ; preds = %._crit_edge15, %.lr.ph20
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #7
  %33 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #7
  %34 = call ptr @_ZNKSt3setIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) @Sx) #7
  store ptr %34, ptr %3, align 8
  %35 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #7
  br i1 %35, label %.lr.ph20, label %._crit_edge21.loopexit, !llvm.loop !15

.lr.ph17:                                         ; preds = %.lr.ph20, %._crit_edge15
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #7
  %36 = call ptr @_ZNKSt3setIxSt4lessIxESaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) @Sy) #7
  store ptr %36, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #7
  %37 = call ptr @_ZNKSt3setIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) @Sy) #7
  store ptr %37, ptr %7, align 8
  %38 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #7
  br i1 %38, label %.lr.ph14, label %._crit_edge15

._crit_edge15:                                    ; preds = %._crit_edge12, %.lr.ph17
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #7
  %39 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #7
  %40 = call ptr @_ZNKSt3setIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) @Sx) #7
  store ptr %40, ptr %5, align 8
  %41 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %5) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #7
  br i1 %41, label %.lr.ph17, label %._crit_edge18, !llvm.loop !16

.lr.ph14:                                         ; preds = %.lr.ph17, %._crit_edge12
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #7
  %42 = load i64, ptr %6, align 8, !tbaa !13
  store i64 %42, ptr %8, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %9) #7
  %43 = call ptr @_ZNKSt3setIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) @Sy) #7
  store ptr %43, ptr %9, align 8
  %44 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8) %8, ptr noundef nonnull align 8 dereferenceable(8) %9) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #7
  br i1 %44, label %.lr.ph11, label %._crit_edge12

._crit_edge12:                                    ; preds = %.lr.ph11, %.lr.ph14
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #7
  %45 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #7
  %46 = call ptr @_ZNKSt3setIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) @Sy) #7
  store ptr %46, ptr %7, align 8
  %47 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #7
  br i1 %47, label %.lr.ph14, label %._crit_edge15, !llvm.loop !17

.lr.ph11:                                         ; preds = %.lr.ph14, %.lr.ph11
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %10) #7
  %48 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #7
  %49 = load i64, ptr %48, align 8, !tbaa !9
  %50 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #7
  %51 = load i64, ptr %50, align 8, !tbaa !9
  %52 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #7
  %53 = load i64, ptr %52, align 8, !tbaa !9
  %54 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %8) #7
  %55 = load i64, ptr %54, align 8, !tbaa !9
  %56 = call noundef i64 @_Z4areaxxxx(i64 noundef %49, i64 noundef %51, i64 noundef %53, i64 noundef %55)
  store i64 %56, ptr %10, align 8, !tbaa !9
  %57 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %1, ptr noundef nonnull align 8 dereferenceable(8) %10)
  %58 = load i64, ptr %57, align 8, !tbaa !9
  store i64 %58, ptr %1, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #7
  %59 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEv(ptr noundef nonnull align 8 dereferenceable(8) %8) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %9) #7
  %60 = call ptr @_ZNKSt3setIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) @Sy) #7
  store ptr %60, ptr %9, align 8
  %61 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8) %8, ptr noundef nonnull align 8 dereferenceable(8) %9) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #7
  br i1 %61, label %.lr.ph11, label %._crit_edge12, !llvm.loop !18
}

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertERKx(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 @_ZNKSt3setIxSt4lessIxESaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

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

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #6

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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 #3 = { "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 = { inlinehint 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 #6 = { inlinehint 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 #7 = { 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 = !{!10, !10, i64 0}
!10 = !{!"long long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !14, i64 0}
!14 = !{!"any pointer", !7, i64 0}
!15 = distinct !{!15, !12}
!16 = distinct !{!16, !12}
!17 = distinct !{!17, !12}
!18 = distinct !{!18, !12}


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