; LLVM IR from DionysiosB/CodeForces :: 0001-0099 (23A-YoureGivenAString)

; 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::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char>, std::_Identity<std::__cxx11::basic_string<char>>, std::less<std::__cxx11::basic_string<char>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char>, std::_Identity<std::__cxx11::basic_string<char>>, std::less<std::__cxx11::basic_string<char>>>::_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 }
%"struct.std::pair" = type <{ %"struct.std::_Rb_tree_const_iterator", i8, [7 x i8] }>

@_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() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i64, align 8
  %7 = alloca i32, align 4
  %8 = alloca %"class.std::set", align 8
  %9 = alloca i64, align 8
  %10 = alloca %"class.std::__cxx11::basic_string", 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::pair", align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 32, ptr %2) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %14 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %15 unwind label %22

15:                                               ; preds = %0
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #6
  store i32 0, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #6
  %16 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %17 = sub i64 %16, 1
  store i64 %17, ptr %6, align 8, !tbaa !9
  br label %18

18:                                               ; preds = %82, %15
  %19 = load i64, ptr %6, align 8, !tbaa !9
  %20 = icmp uge i64 %19, 1
  br i1 %20, label %26, label %21

21:                                               ; preds = %18
  store i32 2, ptr %7, align 4
  br label %85

22:                                               ; preds = %0
  %23 = landingpad { ptr, i32 }
          cleanup
  %24 = extractvalue { ptr, i32 } %23, 0
  store ptr %24, ptr %3, align 8
  %25 = extractvalue { ptr, i32 } %23, 1
  store i32 %25, ptr %4, align 4
  br label %98

26:                                               ; preds = %18
  %27 = load i32, ptr %5, align 4, !tbaa !5
  %28 = icmp sgt i32 %27, 0
  br i1 %28, label %29, label %30

29:                                               ; preds = %26
  store i32 2, ptr %7, align 4
  br label %85

30:                                               ; preds = %26
  call void @llvm.lifetime.start.p0(i64 48, ptr %8) #6
  call void @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %8) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #6
  store i64 0, ptr %9, align 8, !tbaa !9
  br label %31

31:                                               ; preds = %75, %30
  %32 = load i64, ptr %9, align 8, !tbaa !9
  %33 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %34 = load i64, ptr %6, align 8, !tbaa !9
  %35 = sub i64 %33, %34
  %36 = add i64 %35, 1
  %37 = icmp ult i64 %32, %36
  br i1 %37, label %39, label %38

38:                                               ; preds = %31
  store i32 5, ptr %7, align 4
  br label %80

39:                                               ; preds = %31
  call void @llvm.lifetime.start.p0(i64 32, ptr %10) #6
  %40 = load i64, ptr %9, align 8, !tbaa !9
  %41 = load i64, ptr %6, align 8, !tbaa !9
  invoke void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %10, ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %40, i64 noundef %41)
          to label %42 unwind label %56

42:                                               ; preds = %39
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #6
  %43 = invoke ptr @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE4findERKS5_(ptr noundef nonnull align 8 dereferenceable(48) %8, ptr noundef nonnull align 8 dereferenceable(32) %10)
          to label %44 unwind label %60

44:                                               ; preds = %42
  %45 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %11, i32 0, i32 0
  store ptr %43, ptr %45, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #6
  %46 = call ptr @_ZNKSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %8) #6
  %47 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %12, i32 0, i32 0
  store ptr %46, ptr %47, align 8
  %48 = call noundef zeroext i1 @_ZSteqRKSt23_Rb_tree_const_iteratorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEES8_(ptr noundef nonnull align 8 dereferenceable(8) %11, ptr noundef nonnull align 8 dereferenceable(8) %12) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #6
  br i1 %48, label %49, label %68

49:                                               ; preds = %44
  %50 = invoke { ptr, i8 } @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE6insertERKS5_(ptr noundef nonnull align 8 dereferenceable(48) %8, ptr noundef nonnull align 8 dereferenceable(32) %10)
          to label %51 unwind label %64

51:                                               ; preds = %49
  %52 = getelementptr inbounds { ptr, i8 }, ptr %13, i32 0, i32 0
  %53 = extractvalue { ptr, i8 } %50, 0
  store ptr %53, ptr %52, align 8
  %54 = getelementptr inbounds { ptr, i8 }, ptr %13, i32 0, i32 1
  %55 = extractvalue { ptr, i8 } %50, 1
  store i8 %55, ptr %54, align 8
  br label %71

56:                                               ; preds = %39
  %57 = landingpad { ptr, i32 }
          cleanup
  %58 = extractvalue { ptr, i32 } %57, 0
  store ptr %58, ptr %3, align 8
  %59 = extractvalue { ptr, i32 } %57, 1
  store i32 %59, ptr %4, align 4
  br label %79

60:                                               ; preds = %42
  %61 = landingpad { ptr, i32 }
          cleanup
  %62 = extractvalue { ptr, i32 } %61, 0
  store ptr %62, ptr %3, align 8
  %63 = extractvalue { ptr, i32 } %61, 1
  store i32 %63, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #6
  br label %78

64:                                               ; preds = %49
  %65 = landingpad { ptr, i32 }
          cleanup
  %66 = extractvalue { ptr, i32 } %65, 0
  store ptr %66, ptr %3, align 8
  %67 = extractvalue { ptr, i32 } %65, 1
  store i32 %67, ptr %4, align 4
  br label %78

68:                                               ; preds = %44
  %69 = load i64, ptr %6, align 8, !tbaa !9
  %70 = trunc i64 %69 to i32
  store i32 %70, ptr %5, align 4, !tbaa !5
  store i32 5, ptr %7, align 4
  br label %72

71:                                               ; preds = %51
  store i32 0, ptr %7, align 4
  br label %72

72:                                               ; preds = %71, %68
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %10) #6
  %73 = load i32, ptr %7, align 4
  switch i32 %73, label %80 [
    i32 0, label %74
  ]

74:                                               ; preds = %72
  br label %75

75:                                               ; preds = %74
  %76 = load i64, ptr %9, align 8, !tbaa !9
  %77 = add i64 %76, 1
  store i64 %77, ptr %9, align 8, !tbaa !9
  br label %31, !llvm.loop !11

78:                                               ; preds = %64, %60
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #6
  br label %79

79:                                               ; preds = %78, %56
  call void @llvm.lifetime.end.p0(i64 32, ptr %10) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  call void @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %8) #6
  call void @llvm.lifetime.end.p0(i64 48, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  br label %97

80:                                               ; preds = %72, %38
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  br label %81

81:                                               ; preds = %80
  call void @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %8) #6
  call void @llvm.lifetime.end.p0(i64 48, ptr %8) #6
  br label %82

82:                                               ; preds = %81
  %83 = load i64, ptr %6, align 8, !tbaa !9
  %84 = add i64 %83, -1
  store i64 %84, ptr %6, align 8, !tbaa !9
  br label %18, !llvm.loop !13

85:                                               ; preds = %29, %21
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  br label %86

86:                                               ; preds = %85
  %87 = load i32, ptr %5, align 4, !tbaa !5
  %88 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %87)
          to label %89 unwind label %93

89:                                               ; preds = %86
  %90 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %88, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %91 unwind label %93

91:                                               ; preds = %89
  store i32 0, ptr %1, align 4
  store i32 1, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #6
  %92 = load i32, ptr %1, align 4
  ret i32 %92

93:                                               ; preds = %89, %86
  %94 = landingpad { ptr, i32 }
          cleanup
  %95 = extractvalue { ptr, i32 } %94, 0
  store ptr %95, ptr %3, align 8
  %96 = extractvalue { ptr, i32 } %94, 1
  store i32 %96, ptr %4, align 4
  br label %97

97:                                               ; preds = %93, %79
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #6
  br label %98

98:                                               ; preds = %97, %22
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #6
  br label %99

99:                                               ; preds = %98
  %100 = load ptr, ptr %3, align 8
  %101 = load i32, ptr %4, align 4
  %102 = insertvalue { ptr, i32 } poison, ptr %100, 0
  %103 = insertvalue { ptr, i32 } %102, i32 %101, 1
  resume { ptr, i32 } %103
}

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

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) #3

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), i64 noundef, i64 noundef) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZSteqRKSt23_Rb_tree_const_iteratorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEES8_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE4findERKS5_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(32)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) #2 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 uwtable
declare dso_local { ptr, i8 } @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE6insertERKS5_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(32)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #5

; 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)) #3

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 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { 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 #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 = { "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 = { 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", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::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::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char>, std::_Identity<std::__cxx11::basic_string<char>>, std::less<std::__cxx11::basic_string<char>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char>, std::_Identity<std::__cxx11::basic_string<char>>, std::less<std::__cxx11::basic_string<char>>>::_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 }

@_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() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::__cxx11::basic_string", align 8
  %2 = alloca %"class.std::set", align 8
  %3 = alloca %"class.std::__cxx11::basic_string", align 8
  %4 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %5 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %1) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %6 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %7 unwind label %9

7:                                                ; preds = %0
  %8 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %.01535 = add i64 %8, -1
  %.not36 = icmp eq i64 %.01535, 0
  br i1 %.not36, label %._crit_edge, label %.lr.ph39

9:                                                ; preds = %0
  %10 = landingpad { ptr, i32 }
          cleanup
  br label %43

.lr.ph39:                                         ; preds = %7, %.loopexit
  %.01538 = phi i64 [ %.015, %.loopexit ], [ %.01535, %7 ]
  %.01637 = phi i32 [ %.319, %.loopexit ], [ 0, %7 ]
  call void @llvm.lifetime.start.p0(i64 48, ptr nonnull %2) #6
  call void @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #6
  %11 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %12 = sub i64 1, %.01538
  %13 = sub i64 0, %11
  %.not40 = icmp eq i64 %12, %13
  br i1 %.not40, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph39, %29
  %.01334 = phi i64 [ %30, %29 ], [ 0, %.lr.ph39 ]
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %3) #6
  invoke void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %3, ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %.01334, i64 noundef %.01538)
          to label %14 unwind label %21

14:                                               ; preds = %.lr.ph
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #6
  %15 = invoke ptr @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE4findERKS5_(ptr noundef nonnull align 8 dereferenceable(48) %2, ptr noundef nonnull align 8 dereferenceable(32) %3)
          to label %16 unwind label %23

16:                                               ; preds = %14
  store ptr %15, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #6
  %17 = call ptr @_ZNKSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #6
  store ptr %17, ptr %5, align 8
  %18 = call noundef zeroext i1 @_ZSteqRKSt23_Rb_tree_const_iteratorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEES8_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %5) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  br i1 %18, label %19, label %27

19:                                               ; preds = %16
  %20 = invoke { ptr, i8 } @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE6insertERKS5_(ptr noundef nonnull align 8 dereferenceable(48) %2, ptr noundef nonnull align 8 dereferenceable(32) %3)
          to label %29 unwind label %25

21:                                               ; preds = %.lr.ph
  %22 = landingpad { ptr, i32 }
          cleanup
  br label %35

23:                                               ; preds = %14
  %24 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  br label %34

25:                                               ; preds = %19
  %26 = landingpad { ptr, i32 }
          cleanup
  br label %34

27:                                               ; preds = %16
  %28 = trunc i64 %.01538 to i32
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #6
  br label %.loopexit

29:                                               ; preds = %19
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #6
  %30 = add nuw i64 %.01334, 1
  %31 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %32 = add i64 %12, %31
  %33 = icmp ult i64 %30, %32
  br i1 %33, label %.lr.ph, label %.loopexit, !llvm.loop !5

34:                                               ; preds = %25, %23
  %.pn = phi { ptr, i32 } [ %26, %25 ], [ %24, %23 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  br label %35

35:                                               ; preds = %34, %21
  %.pn.pn = phi { ptr, i32 } [ %.pn, %34 ], [ %22, %21 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #6
  call void @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #6
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %2) #6
  br label %43

.loopexit:                                        ; preds = %29, %.lr.ph39, %27
  %.319 = phi i32 [ %28, %27 ], [ %.01637, %.lr.ph39 ], [ %.01637, %29 ]
  call void @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #6
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %2) #6
  %.015 = add i64 %.01538, -1
  %.not = icmp eq i64 %.015, 0
  %36 = icmp sgt i32 %.319, 0
  %or.cond = select i1 %.not, i1 true, i1 %36
  br i1 %or.cond, label %._crit_edge, label %.lr.ph39, !llvm.loop !7

._crit_edge:                                      ; preds = %.loopexit, %7
  %.016.lcssa = phi i32 [ 0, %7 ], [ %.319, %.loopexit ]
  %37 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %.016.lcssa)
          to label %38 unwind label %41

38:                                               ; preds = %._crit_edge
  %39 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %37, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %40 unwind label %41

40:                                               ; preds = %38
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #6
  ret i32 0

41:                                               ; preds = %38, %._crit_edge
  %42 = landingpad { ptr, i32 }
          cleanup
  br label %43

43:                                               ; preds = %35, %41, %9
  %.pn26.pn = phi { ptr, i32 } [ %10, %9 ], [ %42, %41 ], [ %.pn.pn, %35 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn26.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: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #3

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), i64 noundef, i64 noundef) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZSteqRKSt23_Rb_tree_const_iteratorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEES8_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE4findERKS5_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #2 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 uwtable
declare dso_local { ptr, i8 } @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE6insertERKS5_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #5

; 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)) #3

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 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { 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 #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 = { "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 = { 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}
!7 = distinct !{!7, !6}


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