; LLVM IR from viveakrt/Competitive-programing :: CodeChef (Word_list)

; 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::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 }
%"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::allocator.0" = type { i8 }
%"struct.std::pair" = type <{ %"struct.std::_Rb_tree_const_iterator", i8, [7 x i8] }>
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str = external hidden unnamed_addr constant [1 x i8], align 1
@_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 i32, align 4
  %3 = alloca %"class.std::set", align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca [80 x i8], align 16
  %9 = alloca i32, align 4
  %10 = alloca %"class.std::__cxx11::basic_string", align 8
  %11 = alloca %"class.std::allocator.0", align 1
  %12 = alloca %"struct.std::pair", align 8
  %13 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %14 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %15 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %16 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #8
  %17 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
  call void @llvm.lifetime.start.p0(i64 48, ptr %3) #8
  call void @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #8
  %18 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEli(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, i64 noundef 1000, i32 noundef 10)
          to label %19 unwind label %25

19:                                               ; preds = %0
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #8
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %20

20:                                               ; preds = %98, %19
  %21 = load i32, ptr %6, align 4, !tbaa !5
  %22 = load i32, ptr %2, align 4, !tbaa !5
  %23 = icmp slt i32 %21, %22
  br i1 %23, label %29, label %24

24:                                               ; preds = %20
  store i32 2, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #8
  br label %102

25:                                               ; preds = %0
  %26 = landingpad { ptr, i32 }
          cleanup
  %27 = extractvalue { ptr, i32 } %26, 0
  store ptr %27, ptr %4, align 8
  %28 = extractvalue { ptr, i32 } %26, 1
  store i32 %28, ptr %5, align 4
  br label %129

29:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 80, ptr %8) #8
  %30 = getelementptr inbounds [80 x i8], ptr %8, i64 0, i64 0
  %31 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi7getlineEPcl(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef %30, i64 noundef 80)
          to label %32 unwind label %41

32:                                               ; preds = %29
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #8
  store i32 0, ptr %9, align 4, !tbaa !5
  br label %33

33:                                               ; preds = %93, %32
  %34 = load i32, ptr %9, align 4, !tbaa !5
  %35 = sext i32 %34 to i64
  %36 = getelementptr inbounds [80 x i8], ptr %8, i64 0, i64 %35
  %37 = load i8, ptr %36, align 1, !tbaa !9
  %38 = sext i8 %37 to i32
  %39 = icmp ne i32 %38, 0
  br i1 %39, label %45, label %40

40:                                               ; preds = %33
  store i32 5, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #8
  br label %97

41:                                               ; preds = %29
  %42 = landingpad { ptr, i32 }
          cleanup
  %43 = extractvalue { ptr, i32 } %42, 0
  store ptr %43, ptr %4, align 8
  %44 = extractvalue { ptr, i32 } %42, 1
  store i32 %44, ptr %5, align 4
  br label %101

45:                                               ; preds = %33
  call void @llvm.lifetime.start.p0(i64 32, ptr %10) #8
  call void @llvm.lifetime.start.p0(i64 1, ptr %11) #8
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #8
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %10, ptr noundef @.str, ptr noundef nonnull align 1 dereferenceable(1) %11)
          to label %46 unwind label %74

46:                                               ; preds = %45
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #8
  call void @llvm.lifetime.end.p0(i64 1, ptr %11) #8
  br label %47

47:                                               ; preds = %71, %46
  %48 = load i32, ptr %9, align 4, !tbaa !5
  %49 = sext i32 %48 to i64
  %50 = getelementptr inbounds [80 x i8], ptr %8, i64 0, i64 %49
  %51 = load i8, ptr %50, align 1, !tbaa !9
  %52 = sext i8 %51 to i32
  %53 = call i32 @isalpha(i32 noundef %52) #9
  %54 = icmp ne i32 %53, 0
  br i1 %54, label %55, label %82

55:                                               ; preds = %47
  %56 = load i32, ptr %9, align 4, !tbaa !5
  %57 = sext i32 %56 to i64
  %58 = getelementptr inbounds [80 x i8], ptr %8, i64 0, i64 %57
  %59 = load i8, ptr %58, align 1, !tbaa !9
  %60 = sext i8 %59 to i32
  %61 = call i32 @tolower(i32 noundef %60) #9
  %62 = trunc i32 %61 to i8
  %63 = load i32, ptr %9, align 4, !tbaa !5
  %64 = sext i32 %63 to i64
  %65 = getelementptr inbounds [80 x i8], ptr %8, i64 0, i64 %64
  store i8 %62, ptr %65, align 1, !tbaa !9
  %66 = load i32, ptr %9, align 4, !tbaa !5
  %67 = sext i32 %66 to i64
  %68 = getelementptr inbounds [80 x i8], ptr %8, i64 0, i64 %67
  %69 = load i8, ptr %68, align 1, !tbaa !9
  %70 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6appendEmc(ptr noundef nonnull align 8 dereferenceable(32) %10, i64 noundef 1, i8 noundef signext %69)
          to label %71 unwind label %78

71:                                               ; preds = %55
  %72 = load i32, ptr %9, align 4, !tbaa !5
  %73 = add nsw i32 %72, 1
  store i32 %73, ptr %9, align 4, !tbaa !5
  br label %47, !llvm.loop !10

74:                                               ; preds = %45
  %75 = landingpad { ptr, i32 }
          cleanup
  %76 = extractvalue { ptr, i32 } %75, 0
  store ptr %76, ptr %4, align 8
  %77 = extractvalue { ptr, i32 } %75, 1
  store i32 %77, ptr %5, align 4
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #8
  call void @llvm.lifetime.end.p0(i64 1, ptr %11) #8
  br label %96

78:                                               ; preds = %85, %82, %55
  %79 = landingpad { ptr, i32 }
          cleanup
  %80 = extractvalue { ptr, i32 } %79, 0
  store ptr %80, ptr %4, align 8
  %81 = extractvalue { ptr, i32 } %79, 1
  store i32 %81, ptr %5, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #8
  br label %96

82:                                               ; preds = %47
  %83 = invoke noundef zeroext i1 @_ZStneIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32) %10, ptr noundef @.str)
          to label %84 unwind label %78

84:                                               ; preds = %82
  br i1 %83, label %85, label %92

85:                                               ; preds = %84
  %86 = invoke { ptr, i8 } @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE6insertERKS5_(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 8 dereferenceable(32) %10)
          to label %87 unwind label %78

87:                                               ; preds = %85
  %88 = getelementptr inbounds { ptr, i8 }, ptr %12, i32 0, i32 0
  %89 = extractvalue { ptr, i8 } %86, 0
  store ptr %89, ptr %88, align 8
  %90 = getelementptr inbounds { ptr, i8 }, ptr %12, i32 0, i32 1
  %91 = extractvalue { ptr, i8 } %86, 1
  store i8 %91, ptr %90, align 8
  br label %92

92:                                               ; preds = %87, %84
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #8
  call void @llvm.lifetime.end.p0(i64 32, ptr %10) #8
  br label %93

93:                                               ; preds = %92
  %94 = load i32, ptr %9, align 4, !tbaa !5
  %95 = add nsw i32 %94, 1
  store i32 %95, ptr %9, align 4, !tbaa !5
  br label %33, !llvm.loop !12

96:                                               ; preds = %78, %74
  call void @llvm.lifetime.end.p0(i64 32, ptr %10) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #8
  br label %101

97:                                               ; preds = %40
  call void @llvm.lifetime.end.p0(i64 80, ptr %8) #8
  br label %98

98:                                               ; preds = %97
  %99 = load i32, ptr %6, align 4, !tbaa !5
  %100 = add nsw i32 %99, 1
  store i32 %100, ptr %6, align 4, !tbaa !5
  br label %20, !llvm.loop !13

101:                                              ; preds = %96, %41
  call void @llvm.lifetime.end.p0(i64 80, ptr %8) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #8
  br label %129

102:                                              ; preds = %24
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #8
  call void @_ZNSt23_Rb_tree_const_iteratorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(8) %13) #8
  %103 = call noundef i64 @_ZNKSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) %3) #8
  %104 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %103)
          to label %105 unwind label %123

105:                                              ; preds = %102
  %106 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %104, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %107 unwind label %123

107:                                              ; preds = %105
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #8
  %108 = call ptr @_ZNKSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %3) #8
  %109 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %14, i32 0, i32 0
  store ptr %108, ptr %109, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %13, ptr align 8 %14, i64 8, i1 false), !tbaa.struct !14
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #8
  br label %110

110:                                              ; preds = %120, %107
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #8
  %111 = call ptr @_ZNKSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %3) #8
  %112 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %15, i32 0, i32 0
  store ptr %111, ptr %112, align 8
  %113 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEES8_(ptr noundef nonnull align 8 dereferenceable(8) %13, ptr noundef nonnull align 8 dereferenceable(8) %15) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #8
  br i1 %113, label %114, label %127

114:                                              ; preds = %110
  %115 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNKSt23_Rb_tree_const_iteratorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %13) #8
  %116 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(32) %115)
          to label %117 unwind label %123

117:                                              ; preds = %114
  %118 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %116, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %119 unwind label %123

119:                                              ; preds = %117
  br label %120

120:                                              ; preds = %119
  %121 = call ptr @_ZNSt23_Rb_tree_const_iteratorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEppEi(ptr noundef nonnull align 8 dereferenceable(8) %13, i32 noundef 0) #8
  %122 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %16, i32 0, i32 0
  store ptr %121, ptr %122, align 8
  br label %110, !llvm.loop !17

123:                                              ; preds = %117, %114, %105, %102
  %124 = landingpad { ptr, i32 }
          cleanup
  %125 = extractvalue { ptr, i32 } %124, 0
  store ptr %125, ptr %4, align 8
  %126 = extractvalue { ptr, i32 } %124, 1
  store i32 %126, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #8
  br label %129

127:                                              ; preds = %110
  store i32 0, ptr %1, align 4
  store i32 1, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #8
  call void @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #8
  call void @llvm.lifetime.end.p0(i64 48, ptr %3) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #8
  %128 = load i32, ptr %1, align 4
  ret i32 %128

129:                                              ; preds = %123, %101, %25
  call void @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #8
  call void @llvm.lifetime.end.p0(i64 48, ptr %3) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #8
  br label %130

130:                                              ; preds = %129
  %131 = load ptr, ptr %4, align 8
  %132 = load i32, ptr %5, align 4
  %133 = insertvalue { ptr, i32 } poison, ptr %131, 0
  %134 = insertvalue { ptr, i32 } %133, i32 %132, 1
  resume { ptr, i32 } %134
}

; 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 @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #3 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEli(ptr noundef nonnull align 8 dereferenceable(16), i64 noundef, i32 noundef) #2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi7getlineEPcl(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef, i64 noundef) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #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: nounwind willreturn memory(read)
declare i32 @isalpha(i32 noundef) #5

; Function Attrs: nounwind willreturn memory(read)
declare i32 @tolower(i32 noundef) #5

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6appendEmc(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef, i8 noundef signext) #4 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZStneIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) #6

; 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 #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt23_Rb_tree_const_iteratorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #3 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48)) #3 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)) #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE5beginEv(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) #7

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEES8_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZNKSt23_Rb_tree_const_iteratorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt23_Rb_tree_const_iteratorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #3 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 #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nounwind willreturn memory(read) "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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #8 = { nounwind }
attributes #9 = { nounwind willreturn memory(read) }

!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 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}
!12 = distinct !{!12, !11}
!13 = distinct !{!13, !11}
!14 = !{i64 0, i64 8, !15}
!15 = !{!16, !16, i64 0}
!16 = !{!"any pointer", !7, i64 0}
!17 = distinct !{!17, !11}


; 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::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 }
%"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::allocator.0" = type { i8 }
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str = external hidden unnamed_addr constant [1 x i8], align 1
@_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 i32, align 4
  %2 = alloca %"class.std::set", align 8
  %3 = alloca [80 x i8], align 16
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  %5 = alloca %"class.std::allocator.0", align 1
  %6 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %7 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #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) %1)
  call void @llvm.lifetime.start.p0(i64 48, ptr nonnull %2) #7
  call void @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #7
  %9 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEli(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, i64 noundef 1000, i32 noundef 10)
          to label %.preheader28 unwind label %14

.preheader28:                                     ; preds = %0
  %10 = load i32, ptr %1, align 4, !tbaa !5
  %11 = icmp sgt i32 %10, 0
  br i1 %11, label %.lr.ph37, label %._crit_edge38

._crit_edge38:                                    ; preds = %._crit_edge35, %.preheader28
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #7
  call void @_ZNSt23_Rb_tree_const_iteratorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(8) %6) #7
  %12 = call noundef i64 @_ZNKSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #7
  %13 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %12)
          to label %54 unwind label %.loopexit.split-lp

14:                                               ; preds = %0
  %15 = landingpad { ptr, i32 }
          cleanup
  br label %69

.lr.ph37:                                         ; preds = %.preheader28, %._crit_edge35
  %.01636 = phi i32 [ %18, %._crit_edge35 ], [ 0, %.preheader28 ]
  call void @llvm.lifetime.start.p0(i64 80, ptr nonnull %3) #7
  %16 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi7getlineEPcl(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull %3, i64 noundef 80)
          to label %.preheader unwind label %21

.preheader:                                       ; preds = %.lr.ph37
  %17 = load i8, ptr %3, align 16, !tbaa !9
  %.not32 = icmp eq i8 %17, 0
  br i1 %.not32, label %._crit_edge35, label %.lr.ph34

._crit_edge35:                                    ; preds = %47, %.preheader
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %3) #7
  %18 = add nuw nsw i32 %.01636, 1
  %19 = load i32, ptr %1, align 4, !tbaa !5
  %20 = icmp slt i32 %18, %19
  br i1 %20, label %.lr.ph37, label %._crit_edge38, !llvm.loop !10

21:                                               ; preds = %.lr.ph37
  %22 = landingpad { ptr, i32 }
          cleanup
  br label %53

.lr.ph34:                                         ; preds = %.preheader, %47
  %.01733 = phi i32 [ %48, %47 ], [ 0, %.preheader ]
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %4) #7
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %5) #7
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #7
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef nonnull @.str, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %23 unwind label %39

23:                                               ; preds = %.lr.ph34
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #7
  %24 = sext i32 %.01733 to i64
  %25 = getelementptr inbounds [80 x i8], ptr %3, i64 0, i64 %24
  %26 = load i8, ptr %25, align 1, !tbaa !9
  %27 = sext i8 %26 to i32
  %28 = call i32 @isalpha(i32 noundef %27) #8
  %.not1930 = icmp eq i32 %28, 0
  br i1 %.not1930, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %23, %34
  %indvars.iv = phi i64 [ %indvars.iv.next, %34 ], [ %24, %23 ]
  %29 = phi i32 [ %37, %34 ], [ %27, %23 ]
  %30 = phi ptr [ %35, %34 ], [ %25, %23 ]
  %31 = call i32 @tolower(i32 noundef %29) #8
  %32 = trunc i32 %31 to i8
  store i8 %32, ptr %30, align 1, !tbaa !9
  %33 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6appendEmc(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef 1, i8 noundef signext %32)
          to label %34 unwind label %.loopexit23

34:                                               ; preds = %.lr.ph
  %indvars.iv.next = add nsw i64 %indvars.iv, 1
  %35 = getelementptr inbounds [80 x i8], ptr %3, i64 0, i64 %indvars.iv.next
  %36 = load i8, ptr %35, align 1, !tbaa !9
  %37 = sext i8 %36 to i32
  %38 = call i32 @isalpha(i32 noundef %37) #8
  %.not19 = icmp eq i32 %38, 0
  br i1 %.not19, label %._crit_edge.loopexit, label %.lr.ph, !llvm.loop !12

39:                                               ; preds = %.lr.ph34
  %40 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #7
  br label %52

.loopexit23:                                      ; preds = %.lr.ph
  %lpad.loopexit25 = landingpad { ptr, i32 }
          cleanup
  br label %41

.loopexit.split-lp24:                             ; preds = %._crit_edge, %45
  %lpad.loopexit.split-lp26 = landingpad { ptr, i32 }
          cleanup
  br label %41

41:                                               ; preds = %.loopexit.split-lp24, %.loopexit23
  %lpad.phi27 = phi { ptr, i32 } [ %lpad.loopexit25, %.loopexit23 ], [ %lpad.loopexit.split-lp26, %.loopexit.split-lp24 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #7
  br label %52

._crit_edge.loopexit:                             ; preds = %34
  %42 = trunc nsw i64 %indvars.iv.next to i32
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %23
  %.118.lcssa = phi i32 [ %.01733, %23 ], [ %42, %._crit_edge.loopexit ]
  %43 = invoke noundef zeroext i1 @_ZStneIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef nonnull @.str)
          to label %44 unwind label %.loopexit.split-lp24

44:                                               ; preds = %._crit_edge
  br i1 %43, label %45, label %47

45:                                               ; preds = %44
  %46 = invoke { ptr, i8 } @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE6insertERKS5_(ptr noundef nonnull align 8 dereferenceable(48) %2, ptr noundef nonnull align 8 dereferenceable(32) %4)
          to label %47 unwind label %.loopexit.split-lp24

47:                                               ; preds = %45, %44
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #7
  %48 = add nsw i32 %.118.lcssa, 1
  %49 = sext i32 %48 to i64
  %50 = getelementptr inbounds [80 x i8], ptr %3, i64 0, i64 %49
  %51 = load i8, ptr %50, align 1, !tbaa !9
  %.not = icmp eq i8 %51, 0
  br i1 %.not, label %._crit_edge35, label %.lr.ph34, !llvm.loop !13

52:                                               ; preds = %41, %39
  %.pn = phi { ptr, i32 } [ %lpad.phi27, %41 ], [ %40, %39 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #7
  br label %53

53:                                               ; preds = %52, %21
  %.pn.pn = phi { ptr, i32 } [ %.pn, %52 ], [ %22, %21 ]
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %3) #7
  br label %69

54:                                               ; preds = %._crit_edge38
  %55 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %13, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %56 unwind label %.loopexit.split-lp

56:                                               ; preds = %54
  %57 = call ptr @_ZNKSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #7
  store ptr %57, ptr %6, align 8, !tbaa !14
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #7
  %58 = call ptr @_ZNKSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #7
  store ptr %58, ptr %7, align 8
  %59 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEES8_(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 %59, label %.lr.ph40, label %._crit_edge41

.lr.ph40:                                         ; preds = %56, %64
  %60 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNKSt23_Rb_tree_const_iteratorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #7
  %61 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(32) %60)
          to label %62 unwind label %.loopexit

62:                                               ; preds = %.lr.ph40
  %63 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %61, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %64 unwind label %.loopexit

64:                                               ; preds = %62
  %65 = call ptr @_ZNSt23_Rb_tree_const_iteratorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEppEi(ptr noundef nonnull align 8 dereferenceable(8) %6, i32 noundef 0) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #7
  %66 = call ptr @_ZNKSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #7
  store ptr %66, ptr %7, align 8
  %67 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEES8_(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 %67, label %.lr.ph40, label %._crit_edge41, !llvm.loop !16

.loopexit:                                        ; preds = %.lr.ph40, %62
  %lpad.loopexit = landingpad { ptr, i32 }
          cleanup
  br label %68

.loopexit.split-lp:                               ; preds = %._crit_edge38, %54
  %lpad.loopexit.split-lp = landingpad { ptr, i32 }
          cleanup
  br label %68

68:                                               ; preds = %.loopexit.split-lp, %.loopexit
  %lpad.phi = phi { ptr, i32 } [ %lpad.loopexit, %.loopexit ], [ %lpad.loopexit.split-lp, %.loopexit.split-lp ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #7
  br label %69

._crit_edge41:                                    ; preds = %64, %56
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #7
  call void @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #7
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  ret i32 0

69:                                               ; preds = %68, %53, %14
  %.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn, %53 ], [ %lpad.phi, %68 ], [ %15, %14 ]
  call void @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #7
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  resume { ptr, i32 } %.pn.pn.pn
}

; 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 @_ZNSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #3 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEli(ptr noundef nonnull align 8 dereferenceable(16), i64 noundef, i32 noundef) local_unnamed_addr #2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi7getlineEPcl(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef, i64 noundef) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) 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 nofree nounwind willreturn memory(read)
declare i32 @isalpha(i32 noundef) local_unnamed_addr #5

; Function Attrs: mustprogress nofree nounwind willreturn memory(read)
declare i32 @tolower(i32 noundef) local_unnamed_addr #5

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6appendEmc(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef, i8 noundef signext) local_unnamed_addr #4 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZStneIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) local_unnamed_addr #6

; 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 #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt23_Rb_tree_const_iteratorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #3 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #3 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 ptr @_ZNKSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEES8_(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 @_ZNKSt3setINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4lessIS5_ESaIS5_EE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZNKSt23_Rb_tree_const_iteratorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt23_Rb_tree_const_iteratorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #3 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 #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) 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 nofree nounwind willreturn memory(read) "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 }
attributes #8 = { nounwind willreturn memory(read) }

!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 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}
!12 = distinct !{!12, !11}
!13 = distinct !{!13, !11}
!14 = !{!15, !15, i64 0}
!15 = !{!"any pointer", !7, i64 0}
!16 = distinct !{!16, !11}


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