; LLVM IR from VastoLorde95/Competitive-Programming :: SPOJ/Random/CRAN02 (room2)

; 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::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" }
%"class.std::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<long long, std::pair<const long long, long long>, std::_Select1st<std::pair<const long long, long long>>, std::less<long long>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<long long, std::pair<const long long, long long>, std::_Select1st<std::pair<const long long, 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 }
%"struct.std::_Rb_tree_iterator" = type { ptr }
%"struct.std::pair" = type { i64, i64 }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main(i32 noundef %0, ptr noundef %1) #0 personality ptr @__gxx_personality_v0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::map", align 8
  %8 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %9 = alloca i64, align 8
  %10 = alloca i64, align 8
  %11 = alloca ptr, align 8
  %12 = alloca i32, align 4
  %13 = alloca ptr, align 8
  %14 = alloca i64, align 8
  %15 = alloca i32, align 4
  %16 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %17 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %18 = alloca i64, align 8
  %19 = alloca i64, align 8
  %20 = alloca %"struct.std::_Rb_tree_iterator", align 8
  store i32 0, ptr %3, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #8
  %21 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %6)
  call void @llvm.lifetime.start.p0(i64 48, ptr %7) #8
  call void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %7) #8
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #8
  call void @_ZNSt17_Rb_tree_iteratorISt4pairIKxxEEC2Ev(ptr noundef nonnull align 8 dereferenceable(8) %8) #8
  br label %22

22:                                               ; preds = %123, %2
  %23 = load i32, ptr %6, align 4, !tbaa !5
  %24 = add nsw i32 %23, -1
  store i32 %24, ptr %6, align 4, !tbaa !5
  %25 = icmp ne i32 %23, 0
  br i1 %25, label %26, label %126

26:                                               ; preds = %22
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #8
  store i64 0, ptr %9, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #8
  %27 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %10)
          to label %28 unwind label %46

28:                                               ; preds = %26
  %29 = load i64, ptr %10, align 8, !tbaa !11
  %30 = call ptr @llvm.stacksave.p0()
  store ptr %30, ptr %13, align 8
  %31 = alloca i64, i64 %29, align 16
  store i64 %29, ptr %14, align 8
  %32 = getelementptr inbounds i64, ptr %31, i64 0
  %33 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %32)
          to label %34 unwind label %46

34:                                               ; preds = %28
  %35 = getelementptr inbounds i64, ptr %31, i64 0
  %36 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %7, ptr noundef nonnull align 8 dereferenceable(8) %35)
          to label %37 unwind label %46

37:                                               ; preds = %34
  %38 = load i64, ptr %36, align 8, !tbaa !11
  %39 = add nsw i64 %38, 1
  store i64 %39, ptr %36, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #8
  store i32 1, ptr %15, align 4, !tbaa !5
  br label %40

40:                                               ; preds = %73, %37
  %41 = load i32, ptr %15, align 4, !tbaa !5
  %42 = sext i32 %41 to i64
  %43 = load i64, ptr %10, align 8, !tbaa !11
  %44 = icmp slt i64 %42, %43
  br i1 %44, label %50, label %45

45:                                               ; preds = %40
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #8
  br label %80

46:                                               ; preds = %121, %118, %34, %28, %26
  %47 = landingpad { ptr, i32 }
          cleanup
  %48 = extractvalue { ptr, i32 } %47, 0
  store ptr %48, ptr %11, align 8
  %49 = extractvalue { ptr, i32 } %47, 1
  store i32 %49, ptr %12, align 4
  br label %125

50:                                               ; preds = %40
  %51 = load i32, ptr %15, align 4, !tbaa !5
  %52 = sext i32 %51 to i64
  %53 = getelementptr inbounds i64, ptr %31, i64 %52
  %54 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %53)
          to label %55 unwind label %76

55:                                               ; preds = %50
  %56 = load i32, ptr %15, align 4, !tbaa !5
  %57 = sub nsw i32 %56, 1
  %58 = sext i32 %57 to i64
  %59 = getelementptr inbounds i64, ptr %31, i64 %58
  %60 = load i64, ptr %59, align 8, !tbaa !11
  %61 = load i32, ptr %15, align 4, !tbaa !5
  %62 = sext i32 %61 to i64
  %63 = getelementptr inbounds i64, ptr %31, i64 %62
  %64 = load i64, ptr %63, align 8, !tbaa !11
  %65 = add nsw i64 %64, %60
  store i64 %65, ptr %63, align 8, !tbaa !11
  %66 = load i32, ptr %15, align 4, !tbaa !5
  %67 = sext i32 %66 to i64
  %68 = getelementptr inbounds i64, ptr %31, i64 %67
  %69 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %7, ptr noundef nonnull align 8 dereferenceable(8) %68)
          to label %70 unwind label %76

70:                                               ; preds = %55
  %71 = load i64, ptr %69, align 8, !tbaa !11
  %72 = add nsw i64 %71, 1
  store i64 %72, ptr %69, align 8, !tbaa !11
  br label %73

73:                                               ; preds = %70
  %74 = load i32, ptr %15, align 4, !tbaa !5
  %75 = add nsw i32 %74, 1
  store i32 %75, ptr %15, align 4, !tbaa !5
  br label %40, !llvm.loop !13

76:                                               ; preds = %55, %50
  %77 = landingpad { ptr, i32 }
          cleanup
  %78 = extractvalue { ptr, i32 } %77, 0
  store ptr %78, ptr %11, align 8
  %79 = extractvalue { ptr, i32 } %77, 1
  store i32 %79, ptr %12, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #8
  br label %125

80:                                               ; preds = %45
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #8
  %81 = call ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %7) #8
  %82 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %16, i32 0, i32 0
  store ptr %81, ptr %82, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %8, ptr align 8 %16, i64 8, i1 false), !tbaa.struct !15
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #8
  br label %83

83:                                               ; preds = %115, %80
  call void @llvm.lifetime.start.p0(i64 8, ptr %17) #8
  %84 = call ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %7) #8
  %85 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %17, i32 0, i32 0
  store ptr %84, ptr %85, align 8
  %86 = call noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKxxEES5_(ptr noundef nonnull align 8 dereferenceable(8) %8, ptr noundef nonnull align 8 dereferenceable(8) %17) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #8
  br i1 %86, label %87, label %118

87:                                               ; preds = %83
  call void @llvm.lifetime.start.p0(i64 8, ptr %18) #8
  call void @llvm.lifetime.start.p0(i64 8, ptr %19) #8
  %88 = call noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKxxEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %8) #8
  %89 = getelementptr inbounds %"struct.std::pair", ptr %88, i32 0, i32 0
  %90 = load i64, ptr %89, align 8, !tbaa !16
  store i64 %90, ptr %18, align 8, !tbaa !11
  %91 = call noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKxxEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %8) #8
  %92 = getelementptr inbounds %"struct.std::pair", ptr %91, i32 0, i32 1
  %93 = load i64, ptr %92, align 8, !tbaa !18
  store i64 %93, ptr %19, align 8, !tbaa !11
  %94 = load i64, ptr %18, align 8, !tbaa !11
  %95 = icmp ne i64 %94, 0
  br i1 %95, label %96, label %104

96:                                               ; preds = %87
  %97 = load i64, ptr %19, align 8, !tbaa !11
  %98 = load i64, ptr %19, align 8, !tbaa !11
  %99 = sub nsw i64 %98, 1
  %100 = mul nsw i64 %97, %99
  %101 = sdiv i64 %100, 2
  %102 = load i64, ptr %9, align 8, !tbaa !11
  %103 = add nsw i64 %102, %101
  store i64 %103, ptr %9, align 8, !tbaa !11
  br label %114

104:                                              ; preds = %87
  %105 = load i64, ptr %19, align 8, !tbaa !11
  %106 = load i64, ptr %19, align 8, !tbaa !11
  %107 = load i64, ptr %19, align 8, !tbaa !11
  %108 = sub nsw i64 %107, 1
  %109 = mul nsw i64 %106, %108
  %110 = sdiv i64 %109, 2
  %111 = add nsw i64 %105, %110
  %112 = load i64, ptr %9, align 8, !tbaa !11
  %113 = add nsw i64 %112, %111
  store i64 %113, ptr %9, align 8, !tbaa !11
  br label %114

114:                                              ; preds = %104, %96
  call void @llvm.lifetime.end.p0(i64 8, ptr %19) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %18) #8
  br label %115

115:                                              ; preds = %114
  %116 = call ptr @_ZNSt17_Rb_tree_iteratorISt4pairIKxxEEppEi(ptr noundef nonnull align 8 dereferenceable(8) %8, i32 noundef 0) #8
  %117 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %20, i32 0, i32 0
  store ptr %116, ptr %117, align 8
  br label %83, !llvm.loop !19

118:                                              ; preds = %83
  %119 = load i64, ptr %9, align 8, !tbaa !11
  %120 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %119)
          to label %121 unwind label %46

121:                                              ; preds = %118
  %122 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %120, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %123 unwind label %46

123:                                              ; preds = %121
  call void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48) %7) #8
  %124 = load ptr, ptr %13, align 8
  call void @llvm.stackrestore.p0(ptr %124)
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #8
  br label %22, !llvm.loop !20

125:                                              ; preds = %76, %46
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #8
  call void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %7) #8
  call void @llvm.lifetime.end.p0(i64 48, ptr %7) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #8
  br label %128

126:                                              ; preds = %22
  store i32 0, ptr %3, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #8
  call void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %7) #8
  call void @llvm.lifetime.end.p0(i64 48, ptr %7) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #8
  %127 = load i32, ptr %3, align 4
  ret i32 %127

128:                                              ; preds = %125
  %129 = load ptr, ptr %11, align 8
  %130 = load i32, ptr %12, align 4
  %131 = insertvalue { ptr, i32 } poison, ptr %129, 0
  %132 = insertvalue { ptr, i32 } %131, i32 %130, 1
  resume { ptr, i32 } %132
}

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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt17_Rb_tree_iteratorISt4pairIKxxEEC2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #3 align 2

; 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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #5

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(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 @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) #3 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) #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKxxEES5_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKxxEEptEv(ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt17_Rb_tree_iteratorISt4pairIKxxEEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #3 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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48)) #3 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEED2Ev(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 = { nocallback nofree nosync nounwind willreturn }
attributes #6 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long long", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = !{i64 0, i64 8, !9}
!16 = !{!17, !12, i64 0}
!17 = !{!"_ZTSSt4pairIKxxE", !12, i64 0, !12, i64 8}
!18 = !{!17, !12, i64 8}
!19 = distinct !{!19, !14}
!20 = distinct !{!20, !14}


; 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::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" }
%"class.std::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<long long, std::pair<const long long, long long>, std::_Select1st<std::pair<const long long, long long>>, std::less<long long>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<long long, std::pair<const long long, long long>, std::_Select1st<std::pair<const long long, 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 }
%"struct.std::_Rb_tree_iterator" = type { ptr }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main(i32 noundef %0, ptr nocapture noundef readnone %1) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %3 = alloca i32, align 4
  %4 = alloca %"class.std::map", align 8
  %5 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %6 = alloca i64, align 8
  %7 = alloca %"struct.std::_Rb_tree_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #7
  %8 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %3)
  call void @llvm.lifetime.start.p0(i64 48, ptr nonnull %4) #7
  call void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %4) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #7
  call void @_ZNSt17_Rb_tree_iteratorISt4pairIKxxEEC2Ev(ptr noundef nonnull align 8 dereferenceable(8) %5) #7
  %9 = load i32, ptr %3, align 4, !tbaa !5
  %10 = add nsw i32 %9, -1
  store i32 %10, ptr %3, align 4, !tbaa !5
  %.not31 = icmp eq i32 %9, 0
  br i1 %.not31, label %._crit_edge34, label %.lr.ph33

.lr.ph33:                                         ; preds = %2, %59
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #7
  %11 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %6)
          to label %12 unwind label %27

12:                                               ; preds = %.lr.ph33
  %13 = load i64, ptr %6, align 8, !tbaa !9
  %14 = call ptr @llvm.stacksave.p0()
  %15 = alloca i64, i64 %13, align 16
  %16 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %15)
          to label %17 unwind label %27

17:                                               ; preds = %12
  %18 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %4, ptr noundef nonnull align 8 dereferenceable(8) %15)
          to label %19 unwind label %27

19:                                               ; preds = %17
  %20 = load i64, ptr %18, align 8, !tbaa !9
  %21 = add nsw i64 %20, 1
  store i64 %21, ptr %18, align 8, !tbaa !9
  %22 = load i64, ptr %6, align 8, !tbaa !9
  %23 = icmp sgt i64 %22, 1
  br i1 %23, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %37, %19
  %24 = call ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %4) #7
  store ptr %24, ptr %5, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #7
  %25 = call ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %4) #7
  store ptr %25, ptr %7, align 8
  %26 = call noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKxxEES5_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %7) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #7
  br i1 %26, label %.lr.ph29, label %._crit_edge30

27:                                               ; preds = %57, %._crit_edge30, %17, %12, %.lr.ph33
  %28 = landingpad { ptr, i32 }
          cleanup
  br label %62

.lr.ph:                                           ; preds = %19, %37
  %indvars.iv = phi i64 [ %indvars.iv.next, %37 ], [ 1, %19 ]
  %29 = getelementptr inbounds i64, ptr %15, i64 %indvars.iv
  %30 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %29)
          to label %31 unwind label %42

31:                                               ; preds = %.lr.ph
  %32 = getelementptr i8, ptr %29, i64 -8
  %33 = load i64, ptr %32, align 8, !tbaa !9
  %34 = load i64, ptr %29, align 8, !tbaa !9
  %35 = add nsw i64 %34, %33
  store i64 %35, ptr %29, align 8, !tbaa !9
  %36 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %4, ptr noundef nonnull align 8 dereferenceable(8) %29)
          to label %37 unwind label %42

37:                                               ; preds = %31
  %38 = load i64, ptr %36, align 8, !tbaa !9
  %39 = add nsw i64 %38, 1
  store i64 %39, ptr %36, align 8, !tbaa !9
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %40 = load i64, ptr %6, align 8, !tbaa !9
  %41 = icmp sgt i64 %40, %indvars.iv.next
  br i1 %41, label %.lr.ph, label %._crit_edge, !llvm.loop !13

42:                                               ; preds = %31, %.lr.ph
  %43 = landingpad { ptr, i32 }
          cleanup
  br label %62

.lr.ph29:                                         ; preds = %._crit_edge, %.lr.ph29
  %.027 = phi i64 [ %.1, %.lr.ph29 ], [ 0, %._crit_edge ]
  %44 = call noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKxxEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #7
  %45 = load i64, ptr %44, align 8, !tbaa !15
  %46 = call noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKxxEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #7
  %47 = getelementptr inbounds i8, ptr %46, i64 8
  %48 = load i64, ptr %47, align 8, !tbaa !17
  %.not23 = icmp eq i64 %45, 0
  %49 = add nsw i64 %48, -1
  %50 = mul nsw i64 %49, %48
  %51 = sdiv i64 %50, 2
  %52 = select i1 %.not23, i64 %48, i64 0
  %.pn = add nsw i64 %51, %52
  %.1 = add nsw i64 %.pn, %.027
  %53 = call ptr @_ZNSt17_Rb_tree_iteratorISt4pairIKxxEEppEi(ptr noundef nonnull align 8 dereferenceable(8) %5, i32 noundef 0) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #7
  %54 = call ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %4) #7
  store ptr %54, ptr %7, align 8
  %55 = call noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKxxEES5_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %7) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #7
  br i1 %55, label %.lr.ph29, label %._crit_edge30, !llvm.loop !18

._crit_edge30:                                    ; preds = %.lr.ph29, %._crit_edge
  %.0.lcssa = phi i64 [ 0, %._crit_edge ], [ %.1, %.lr.ph29 ]
  %56 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %.0.lcssa)
          to label %57 unwind label %27

57:                                               ; preds = %._crit_edge30
  %58 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %56, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %59 unwind label %27

59:                                               ; preds = %57
  call void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48) %4) #7
  call void @llvm.stackrestore.p0(ptr %14)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #7
  %60 = load i32, ptr %3, align 4, !tbaa !5
  %61 = add nsw i32 %60, -1
  store i32 %61, ptr %3, align 4, !tbaa !5
  %.not = icmp eq i32 %60, 0
  br i1 %.not, label %._crit_edge34, label %.lr.ph33, !llvm.loop !19

62:                                               ; preds = %42, %27
  %.pn24 = phi { ptr, i32 } [ %43, %42 ], [ %28, %27 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #7
  call void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %4) #7
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #7
  resume { ptr, i32 } %.pn24

._crit_edge34:                                    ; preds = %59, %2
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #7
  call void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %4) #7
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #7
  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

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 #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt17_Rb_tree_iteratorISt4pairIKxxEEC2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #3 align 2

; 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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #5

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEEixERS3_(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 @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKxxEES5_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt17_Rb_tree_iteratorISt4pairIKxxEEptEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt17_Rb_tree_iteratorISt4pairIKxxEEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #3 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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIxxSt4lessIxESaISt4pairIKxxEEED2Ev(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 = { "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 = { mustprogress nocallback nofree nosync nounwind willreturn }
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 = !{!12, !12, i64 0}
!12 = !{!"any pointer", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = !{!16, !10, i64 0}
!16 = !{!"_ZTSSt4pairIKxxE", !10, i64 0, !10, i64 8}
!17 = !{!16, !10, i64 8}
!18 = distinct !{!18, !14}
!19 = distinct !{!19, !14}


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