; LLVM IR from imteekay/algorithms :: competitive-programming/uri (tell_me_the_frequencies)

; 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::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<int, std::pair<const int, int>, std::_Select1st<std::pair<const int, int>>, std::less<int>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<int, std::pair<const int, int>, std::_Select1st<std::pair<const int, int>>, std::less<int>>::_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 }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator.3" = type { i8 }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%"struct.std::pair" = type { i32, i32 }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z7toASCIIc(i8 noundef signext) #0

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

; 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 noundef zeroext i1 @_Z18compareByFrequencyRKSt4pairIiiES2_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #2 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i8, align 1
  %3 = alloca %"class.std::__cxx11::basic_string", align 8
  %4 = alloca i8, align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::map", align 8
  %8 = alloca i32, align 4
  %9 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %10 = alloca i32, align 4
  %11 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca %"class.std::vector", align 8
  %15 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %16 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %17 = alloca %"class.std::allocator.3", align 1
  %18 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %19 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %20 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 1, ptr %2) #6
  call void @llvm.lifetime.start.p0(i64 32, ptr %3) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr %4) #6
  store i8 1, ptr %4, align 1, !tbaa !5
  br label %21

21:                                               ; preds = %160, %0
  %22 = 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) %3)
          to label %23 unwind label %34

23:                                               ; preds = %21
  %24 = load ptr, ptr %22, align 8, !tbaa !9
  %25 = getelementptr i8, ptr %24, i64 -24
  %26 = load i64, ptr %25, align 8
  %27 = getelementptr inbounds i8, ptr %22, i64 %26
  %28 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %27)
          to label %29 unwind label %34

29:                                               ; preds = %23
  br i1 %28, label %30, label %164

30:                                               ; preds = %29
  call void @llvm.lifetime.start.p0(i64 48, ptr %7) #6
  call void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %7) #6
  %31 = load i8, ptr %4, align 1, !tbaa !5, !range !11, !noundef !12
  %32 = trunc i8 %31 to i1
  br i1 %32, label %33, label %38

33:                                               ; preds = %30
  store i8 0, ptr %4, align 1, !tbaa !5
  br label %45

34:                                               ; preds = %23, %21
  %35 = landingpad { ptr, i32 }
          cleanup
  %36 = extractvalue { ptr, i32 } %35, 0
  store ptr %36, ptr %5, align 8
  %37 = extractvalue { ptr, i32 } %35, 1
  store i32 %37, ptr %6, align 4
  br label %166

38:                                               ; preds = %30
  %39 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %40 unwind label %41

40:                                               ; preds = %38
  br label %45

41:                                               ; preds = %38
  %42 = landingpad { ptr, i32 }
          cleanup
  %43 = extractvalue { ptr, i32 } %42, 0
  store ptr %43, ptr %5, align 8
  %44 = extractvalue { ptr, i32 } %42, 1
  store i32 %44, ptr %6, align 4
  br label %163

45:                                               ; preds = %40, %33
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #6
  store i32 0, ptr %8, align 4, !tbaa !13
  br label %46

46:                                               ; preds = %97, %45
  %47 = load i32, ptr %8, align 4, !tbaa !13
  %48 = sext i32 %47 to i64
  %49 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %50 = icmp ult i64 %48, %49
  br i1 %50, label %52, label %51

51:                                               ; preds = %46
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #6
  br label %101

52:                                               ; preds = %46
  %53 = load i32, ptr %8, align 4, !tbaa !13
  %54 = sext i32 %53 to i64
  %55 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %54)
          to label %56 unwind label %75

56:                                               ; preds = %52
  %57 = load i8, ptr %55, align 1, !tbaa !15
  %58 = call noundef i32 @_Z7toASCIIc(i8 noundef signext %57)
  %59 = trunc i32 %58 to i8
  store i8 %59, ptr %2, align 1, !tbaa !15
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #6
  %60 = load i8, ptr %2, align 1, !tbaa !15
  %61 = sext i8 %60 to i32
  store i32 %61, ptr %10, align 4, !tbaa !13
  %62 = invoke ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE4findERS3_(ptr noundef nonnull align 8 dereferenceable(48) %7, ptr noundef nonnull align 4 dereferenceable(4) %10)
          to label %63 unwind label %79

63:                                               ; preds = %56
  %64 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %9, i32 0, i32 0
  store ptr %62, ptr %64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #6
  %65 = call ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %7) #6
  %66 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %11, i32 0, i32 0
  store ptr %65, ptr %66, align 8
  %67 = call noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKiiEES5_(ptr noundef nonnull align 8 dereferenceable(8) %9, ptr noundef nonnull align 8 dereferenceable(8) %11) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  br i1 %67, label %68, label %87

68:                                               ; preds = %63
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #6
  %69 = load i8, ptr %2, align 1, !tbaa !15
  %70 = sext i8 %69 to i32
  store i32 %70, ptr %12, align 4, !tbaa !13
  %71 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixEOi(ptr noundef nonnull align 8 dereferenceable(48) %7, ptr noundef nonnull align 4 dereferenceable(4) %12)
          to label %72 unwind label %83

72:                                               ; preds = %68
  %73 = load i32, ptr %71, align 4, !tbaa !13
  %74 = add nsw i32 %73, 1
  store i32 %74, ptr %71, align 4, !tbaa !13
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #6
  br label %96

75:                                               ; preds = %52
  %76 = landingpad { ptr, i32 }
          cleanup
  %77 = extractvalue { ptr, i32 } %76, 0
  store ptr %77, ptr %5, align 8
  %78 = extractvalue { ptr, i32 } %76, 1
  store i32 %78, ptr %6, align 4
  br label %100

79:                                               ; preds = %56
  %80 = landingpad { ptr, i32 }
          cleanup
  %81 = extractvalue { ptr, i32 } %80, 0
  store ptr %81, ptr %5, align 8
  %82 = extractvalue { ptr, i32 } %80, 1
  store i32 %82, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  br label %100

83:                                               ; preds = %68
  %84 = landingpad { ptr, i32 }
          cleanup
  %85 = extractvalue { ptr, i32 } %84, 0
  store ptr %85, ptr %5, align 8
  %86 = extractvalue { ptr, i32 } %84, 1
  store i32 %86, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #6
  br label %100

87:                                               ; preds = %63
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #6
  %88 = load i8, ptr %2, align 1, !tbaa !15
  %89 = sext i8 %88 to i32
  store i32 %89, ptr %13, align 4, !tbaa !13
  %90 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixEOi(ptr noundef nonnull align 8 dereferenceable(48) %7, ptr noundef nonnull align 4 dereferenceable(4) %13)
          to label %91 unwind label %92

91:                                               ; preds = %87
  store i32 1, ptr %90, align 4, !tbaa !13
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #6
  br label %96

92:                                               ; preds = %87
  %93 = landingpad { ptr, i32 }
          cleanup
  %94 = extractvalue { ptr, i32 } %93, 0
  store ptr %94, ptr %5, align 8
  %95 = extractvalue { ptr, i32 } %93, 1
  store i32 %95, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #6
  br label %100

96:                                               ; preds = %91, %72
  br label %97

97:                                               ; preds = %96
  %98 = load i32, ptr %8, align 4, !tbaa !13
  %99 = add nsw i32 %98, 1
  store i32 %99, ptr %8, align 4, !tbaa !13
  br label %46, !llvm.loop !16

100:                                              ; preds = %92, %83, %79, %75
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #6
  br label %163

101:                                              ; preds = %51
  call void @llvm.lifetime.start.p0(i64 24, ptr %14) #6
  %102 = call ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %7) #6
  %103 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %15, i32 0, i32 0
  store ptr %102, ptr %103, align 8
  %104 = call ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %7) #6
  %105 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %16, i32 0, i32 0
  store ptr %104, ptr %105, align 8
  call void @llvm.lifetime.start.p0(i64 1, ptr %17) #6
  call void @_ZNSaISt4pairIiiEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %17) #6
  %106 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %15, i32 0, i32 0
  %107 = load ptr, ptr %106, align 8
  %108 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %16, i32 0, i32 0
  %109 = load ptr, ptr %108, align 8
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2ISt17_Rb_tree_iteratorIS0_IKiiEEvEET_S9_RKS2_(ptr noundef nonnull align 8 dereferenceable(24) %14, ptr %107, ptr %109, ptr noundef nonnull align 1 dereferenceable(1) %17)
          to label %110 unwind label %126

110:                                              ; preds = %101
  call void @_ZNSt15__new_allocatorISt4pairIiiEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %17) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %17) #6
  %111 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %14) #6
  %112 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %18, i32 0, i32 0
  store ptr %111, ptr %112, align 8
  %113 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %14) #6
  %114 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %19, i32 0, i32 0
  store ptr %113, ptr %114, align 8
  %115 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %18, i32 0, i32 0
  %116 = load ptr, ptr %115, align 8
  %117 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %19, i32 0, i32 0
  %118 = load ptr, ptr %117, align 8
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEPFbRKS3_SA_EEvT_SD_T0_(ptr %116, ptr %118, ptr noundef @_Z18compareByFrequencyRKSt4pairIiiES2_)
          to label %119 unwind label %130

119:                                              ; preds = %110
  call void @llvm.lifetime.start.p0(i64 4, ptr %20) #6
  store i32 0, ptr %20, align 4, !tbaa !13
  br label %120

120:                                              ; preds = %153, %119
  %121 = load i32, ptr %20, align 4, !tbaa !13
  %122 = sext i32 %121 to i64
  %123 = call noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %14) #6
  %124 = icmp ult i64 %122, %123
  br i1 %124, label %134, label %125

125:                                              ; preds = %120
  call void @llvm.lifetime.end.p0(i64 4, ptr %20) #6
  br label %160

126:                                              ; preds = %101
  %127 = landingpad { ptr, i32 }
          cleanup
  %128 = extractvalue { ptr, i32 } %127, 0
  store ptr %128, ptr %5, align 8
  %129 = extractvalue { ptr, i32 } %127, 1
  store i32 %129, ptr %6, align 4
  call void @_ZNSt15__new_allocatorISt4pairIiiEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %17) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %17) #6
  br label %162

130:                                              ; preds = %110
  %131 = landingpad { ptr, i32 }
          cleanup
  %132 = extractvalue { ptr, i32 } %131, 0
  store ptr %132, ptr %5, align 8
  %133 = extractvalue { ptr, i32 } %131, 1
  store i32 %133, ptr %6, align 4
  br label %161

134:                                              ; preds = %120
  %135 = load i32, ptr %20, align 4, !tbaa !13
  %136 = sext i32 %135 to i64
  %137 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %14, i64 noundef %136) #6
  %138 = getelementptr inbounds %"struct.std::pair", ptr %137, i32 0, i32 0
  %139 = load i32, ptr %138, align 4, !tbaa !18
  %140 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %139)
          to label %141 unwind label %156

141:                                              ; preds = %134
  %142 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %140, ptr noundef @.str)
          to label %143 unwind label %156

143:                                              ; preds = %141
  %144 = load i32, ptr %20, align 4, !tbaa !13
  %145 = sext i32 %144 to i64
  %146 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %14, i64 noundef %145) #6
  %147 = getelementptr inbounds %"struct.std::pair", ptr %146, i32 0, i32 1
  %148 = load i32, ptr %147, align 4, !tbaa !20
  %149 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %142, i32 noundef %148)
          to label %150 unwind label %156

150:                                              ; preds = %143
  %151 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %149, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %152 unwind label %156

152:                                              ; preds = %150
  br label %153

153:                                              ; preds = %152
  %154 = load i32, ptr %20, align 4, !tbaa !13
  %155 = add nsw i32 %154, 1
  store i32 %155, ptr %20, align 4, !tbaa !13
  br label %120, !llvm.loop !21

156:                                              ; preds = %150, %143, %141, %134
  %157 = landingpad { ptr, i32 }
          cleanup
  %158 = extractvalue { ptr, i32 } %157, 0
  store ptr %158, ptr %5, align 8
  %159 = extractvalue { ptr, i32 } %157, 1
  store i32 %159, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %20) #6
  br label %161

160:                                              ; preds = %125
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %14) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %14) #6
  call void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %7) #6
  call void @llvm.lifetime.end.p0(i64 48, ptr %7) #6
  br label %21, !llvm.loop !22

161:                                              ; preds = %156, %130
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %14) #6
  br label %162

162:                                              ; preds = %161, %126
  call void @llvm.lifetime.end.p0(i64 24, ptr %14) #6
  br label %163

163:                                              ; preds = %162, %100, %41
  call void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %7) #6
  call void @llvm.lifetime.end.p0(i64 48, ptr %7) #6
  br label %166

164:                                              ; preds = %29
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %2) #6
  %165 = load i32, ptr %1, align 4
  ret i32 %165

166:                                              ; preds = %163, %34
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %2) #6
  br label %167

167:                                              ; preds = %166
  %168 = load ptr, ptr %5, align 8
  %169 = load i32, ptr %6, align 4
  %170 = insertvalue { ptr, i32 } poison, ptr %168, 0
  %171 = insertvalue { ptr, i32 } %170, i32 %169, 1
  resume { ptr, i32 } %171
}

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 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 uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #0 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)) #3

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKiiEES5_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #0

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE4findERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixEOi(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt4pairIiiEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2ISt17_Rb_tree_iteratorIS0_IKiiEEvEET_S9_RKS2_(ptr noundef nonnull align 8 dereferenceable(24), ptr, ptr, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEPFbRKS3_SA_EEvT_SD_T0_(ptr, ptr, ptr noundef) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #3

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt4pairIiiEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { 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 = !{!"bool", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"vtable pointer", !8, i64 0}
!11 = !{i8 0, i8 2}
!12 = !{}
!13 = !{!14, !14, i64 0}
!14 = !{!"int", !7, i64 0}
!15 = !{!7, !7, i64 0}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}
!18 = !{!19, !14, i64 0}
!19 = !{!"_ZTSSt4pairIiiE", !14, i64 0, !14, i64 4}
!20 = !{!19, !14, i64 4}
!21 = distinct !{!21, !17}
!22 = distinct !{!22, !17}


; 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::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<int, std::pair<const int, int>, std::_Select1st<std::pair<const int, int>>, std::less<int>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<int, std::pair<const int, int>, std::_Select1st<std::pair<const int, int>>, std::less<int>>::_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 }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator.3" = type { i8 }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z7toASCIIc(i8 noundef signext) local_unnamed_addr #0

; 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 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 noundef zeroext i1 @_Z18compareByFrequencyRKSt4pairIiiES2_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::__cxx11::basic_string", align 8
  %2 = alloca %"class.std::map", align 8
  %3 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %4 = alloca i32, align 4
  %5 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca %"class.std::vector", align 8
  %9 = alloca %"class.std::allocator.3", align 1
  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
  br label %10

10:                                               ; preds = %._crit_edge36, %0
  %.016 = phi i1 [ true, %0 ], [ false, %._crit_edge36 ]
  %11 = 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 %12 unwind label %20

12:                                               ; preds = %10
  %13 = load ptr, ptr %11, align 8, !tbaa !5
  %14 = getelementptr i8, ptr %13, i64 -24
  %15 = load i64, ptr %14, align 8
  %16 = getelementptr inbounds i8, ptr %11, i64 %15
  %17 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %16)
          to label %18 unwind label %20

18:                                               ; preds = %12
  br i1 %17, label %19, label %83

19:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 48, ptr nonnull %2) #6
  call void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #6
  br i1 %.016, label %26, label %22

20:                                               ; preds = %12, %10
  %21 = landingpad { ptr, i32 }
          cleanup
  br label %84

22:                                               ; preds = %19
  %23 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %26 unwind label %24

24:                                               ; preds = %22
  %25 = landingpad { ptr, i32 }
          cleanup
  br label %82

26:                                               ; preds = %19, %22
  %27 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %.not = icmp eq i64 %27, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %52, %26
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %8) #6
  %28 = call ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #6
  %29 = call ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %9) #6
  call void @_ZNSaISt4pairIiiEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #6
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2ISt17_Rb_tree_iteratorIS0_IKiiEEvEET_S9_RKS2_(ptr noundef nonnull align 8 dereferenceable(24) %8, ptr %28, ptr %29, ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %55 unwind label %59

.lr.ph:                                           ; preds = %26, %52
  %indvars.iv = phi i64 [ %indvars.iv.next, %52 ], [ 0, %26 ]
  %30 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %indvars.iv)
  %31 = load i8, ptr %30, align 1, !tbaa !8
  %32 = call noundef i32 @_Z7toASCIIc(i8 noundef signext %31)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #6
  %sext = shl i32 %32, 24
  %33 = ashr exact i32 %sext, 24
  store i32 %33, ptr %4, align 4, !tbaa !10
  %34 = invoke ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE4findERS3_(ptr noundef nonnull align 8 dereferenceable(48) %2, ptr noundef nonnull align 4 dereferenceable(4) %4)
          to label %35 unwind label %43

35:                                               ; preds = %.lr.ph
  store ptr %34, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #6
  %36 = call ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #6
  store ptr %36, ptr %5, align 8
  %37 = call noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKiiEES5_(ptr noundef nonnull align 8 dereferenceable(8) %3, 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 4, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #6
  br i1 %37, label %38, label %47

38:                                               ; preds = %35
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #6
  store i32 %33, ptr %6, align 4, !tbaa !10
  %39 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixEOi(ptr noundef nonnull align 8 dereferenceable(48) %2, ptr noundef nonnull align 4 dereferenceable(4) %6)
          to label %40 unwind label %45

40:                                               ; preds = %38
  %41 = load i32, ptr %39, align 4, !tbaa !10
  %42 = add nsw i32 %41, 1
  store i32 %42, ptr %39, align 4, !tbaa !10
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #6
  br label %52

43:                                               ; preds = %.lr.ph
  %44 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #6
  br label %82

45:                                               ; preds = %38
  %46 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #6
  br label %82

47:                                               ; preds = %35
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %7) #6
  store i32 %33, ptr %7, align 4, !tbaa !10
  %48 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixEOi(ptr noundef nonnull align 8 dereferenceable(48) %2, ptr noundef nonnull align 4 dereferenceable(4) %7)
          to label %49 unwind label %50

49:                                               ; preds = %47
  store i32 1, ptr %48, align 4, !tbaa !10
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #6
  br label %52

50:                                               ; preds = %47
  %51 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #6
  br label %82

52:                                               ; preds = %40, %49
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %53 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %54 = icmp ugt i64 %53, %indvars.iv.next
  br i1 %54, label %.lr.ph, label %._crit_edge, !llvm.loop !12

55:                                               ; preds = %._crit_edge
  call void @_ZNSt15__new_allocatorISt4pairIiiEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %9) #6
  %56 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %8) #6
  %57 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %8) #6
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEPFbRKS3_SA_EEvT_SD_T0_(ptr %56, ptr %57, ptr noundef nonnull @_Z18compareByFrequencyRKSt4pairIiiES2_)
          to label %.preheader unwind label %61

.preheader:                                       ; preds = %55
  %58 = call noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %8) #6
  %.not37 = icmp eq i64 %58, 0
  br i1 %.not37, label %._crit_edge36, label %.lr.ph35

._crit_edge36:                                    ; preds = %75, %.preheader
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %8) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %8) #6
  call void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #6
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %2) #6
  br label %10, !llvm.loop !14

59:                                               ; preds = %._crit_edge
  %60 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorISt4pairIiiEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %9) #6
  br label %81

61:                                               ; preds = %55
  %62 = landingpad { ptr, i32 }
          cleanup
  br label %80

.lr.ph35:                                         ; preds = %.preheader, %75
  %indvars.iv39 = phi i64 [ %indvars.iv.next40, %75 ], [ 0, %.preheader ]
  %63 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %indvars.iv39) #6
  %64 = load i32, ptr %63, align 4, !tbaa !15
  %65 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %64)
          to label %66 unwind label %78

66:                                               ; preds = %.lr.ph35
  %67 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %65, ptr noundef nonnull @.str)
          to label %68 unwind label %78

68:                                               ; preds = %66
  %69 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %indvars.iv39) #6
  %70 = getelementptr inbounds i8, ptr %69, i64 4
  %71 = load i32, ptr %70, align 4, !tbaa !17
  %72 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %67, i32 noundef %71)
          to label %73 unwind label %78

73:                                               ; preds = %68
  %74 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %72, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %75 unwind label %78

75:                                               ; preds = %73
  %indvars.iv.next40 = add nuw nsw i64 %indvars.iv39, 1
  %76 = call noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %8) #6
  %77 = icmp ugt i64 %76, %indvars.iv.next40
  br i1 %77, label %.lr.ph35, label %._crit_edge36, !llvm.loop !18

78:                                               ; preds = %73, %68, %66, %.lr.ph35
  %79 = landingpad { ptr, i32 }
          cleanup
  br label %80

80:                                               ; preds = %78, %61
  %.pn = phi { ptr, i32 } [ %79, %78 ], [ %62, %61 ]
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %8) #6
  br label %81

81:                                               ; preds = %80, %59
  %.pn.pn = phi { ptr, i32 } [ %.pn, %80 ], [ %60, %59 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %8) #6
  br label %82

82:                                               ; preds = %43, %45, %50, %81, %24
  %.pn29.pn = phi { ptr, i32 } [ %.pn.pn, %81 ], [ %25, %24 ], [ %46, %45 ], [ %51, %50 ], [ %44, %43 ]
  call void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #6
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %2) #6
  br label %84

83:                                               ; preds = %18
  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

84:                                               ; preds = %82, %20
  %.pn29.pn.pn = phi { ptr, i32 } [ %.pn29.pn, %82 ], [ %21, %20 ]
  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 } %.pn29.pn.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 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 uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #0 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)) #3

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt17_Rb_tree_iteratorISt4pairIKiiEES5_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE4findERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixEOi(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt4pairIiiEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2ISt17_Rb_tree_iteratorIS0_IKiiEEvEET_S9_RKS2_(ptr noundef nonnull align 8 dereferenceable(24), ptr, ptr, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEPFbRKS3_SA_EEvT_SD_T0_(ptr, ptr, ptr noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #3

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 nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt4pairIiiEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"omnipotent char", !7, i64 0}
!10 = !{!11, !11, i64 0}
!11 = !{!"int", !9, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = distinct !{!14, !13}
!15 = !{!16, !11, i64 0}
!16 = !{!"_ZTSSt4pairIiiE", !11, i64 0, !11, i64 4}
!17 = !{!16, !11, i64 4}
!18 = distinct !{!18, !13}


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