; LLVM IR from smv1999/CompetitiveProgrammingQuestionBank :: Strings (Longest_Substring_Without_Repeating_Characters)

; 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::unordered_map" = type { %"class.std::_Hashtable" }
%"class.std::_Hashtable" = type { ptr, i64, %"struct.std::__detail::_Hash_node_base", i64, %"struct.std::__detail::_Prime_rehash_policy", ptr }
%"struct.std::__detail::_Hash_node_base" = type { ptr }
%"struct.std::__detail::_Prime_rehash_policy" = type { float, i64 }
%"struct.std::__detail::_Node_iterator" = type { %"struct.std::__detail::_Node_iterator_base" }
%"struct.std::__detail::_Node_iterator_base" = type { ptr }
%"struct.std::pair.5" = type { i32, i32 }
%"struct.std::pair" = type <{ %"struct.std::__detail::_Node_iterator", i8, [7 x i8] }>

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z24lengthOfLongestSubstringNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %0) #0 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::unordered_map", align 8
  %8 = alloca %"struct.std::__detail::_Node_iterator", align 8
  %9 = alloca i32, align 4
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca %"struct.std::__detail::_Node_iterator", align 8
  %13 = alloca %"struct.std::pair.5", align 4
  %14 = alloca i32, align 4
  %15 = alloca %"struct.std::pair", align 8
  %16 = alloca i32, align 4
  %17 = alloca i32, align 4
  %18 = alloca i32, align 4
  %19 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  store i32 0, ptr %3, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  store i32 0, ptr %4, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  store i32 1, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  store i32 0, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 56, ptr %7) #4
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56) %7) #4
  br label %20

20:                                               ; preds = %126, %1
  %21 = load i32, ptr %4, align 4, !tbaa !9
  %22 = sext i32 %21 to i64
  %23 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #4
  %24 = icmp ult i64 %22, %23
  br i1 %24, label %25, label %133

25:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #4
  %26 = load i32, ptr %4, align 4, !tbaa !9
  %27 = sext i32 %26 to i64
  %28 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %27)
          to label %29 unwind label %54

29:                                               ; preds = %25
  %30 = load i8, ptr %28, align 1, !tbaa !11
  %31 = sext i8 %30 to i32
  store i32 %31, ptr %9, align 4, !tbaa !9
  %32 = invoke ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE4findERS5_(ptr noundef nonnull align 8 dereferenceable(56) %7, ptr noundef nonnull align 4 dereferenceable(4) %9)
          to label %33 unwind label %54

33:                                               ; preds = %29
  %34 = getelementptr inbounds %"struct.std::__detail::_Node_iterator", ptr %8, i32 0, i32 0
  %35 = getelementptr inbounds %"struct.std::__detail::_Node_iterator_base", ptr %34, i32 0, i32 0
  store ptr %32, ptr %35, align 8
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #4
  %36 = call ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE3endEv(ptr noundef nonnull align 8 dereferenceable(56) %7) #4
  %37 = getelementptr inbounds %"struct.std::__detail::_Node_iterator", ptr %12, i32 0, i32 0
  %38 = getelementptr inbounds %"struct.std::__detail::_Node_iterator_base", ptr %37, i32 0, i32 0
  store ptr %36, ptr %38, align 8
  %39 = call noundef zeroext i1 @_ZNSt8__detaileqERKNS_19_Node_iterator_baseISt4pairIKiiELb0EEES6_(ptr noundef nonnull align 8 dereferenceable(8) %8, ptr noundef nonnull align 8 dereferenceable(8) %12) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #4
  br i1 %39, label %40, label %67

40:                                               ; preds = %33
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #4
  %41 = load i32, ptr %4, align 4, !tbaa !9
  %42 = sext i32 %41 to i64
  %43 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %42)
          to label %44 unwind label %58

44:                                               ; preds = %40
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #4
  store i32 1, ptr %14, align 4, !tbaa !9
  invoke void @_ZNSt4pairIiiEC2IRciTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %13, ptr noundef nonnull align 1 dereferenceable(1) %43, ptr noundef nonnull align 4 dereferenceable(4) %14)
          to label %45 unwind label %62

45:                                               ; preds = %44
  %46 = invoke { ptr, i8 } @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE6insertIS4_IiiEEENSt9enable_ifIXsr16is_constructibleIS6_OT_EE5valueES4_INSt8__detail14_Node_iteratorIS6_Lb0ELb0EEEbEE4typeESD_(ptr noundef nonnull align 8 dereferenceable(56) %7, ptr noundef nonnull align 4 dereferenceable(8) %13)
          to label %47 unwind label %62

47:                                               ; preds = %45
  %48 = getelementptr inbounds { ptr, i8 }, ptr %15, i32 0, i32 0
  %49 = extractvalue { ptr, i8 } %46, 0
  store ptr %49, ptr %48, align 8
  %50 = getelementptr inbounds { ptr, i8 }, ptr %15, i32 0, i32 1
  %51 = extractvalue { ptr, i8 } %46, 1
  store i8 %51, ptr %50, align 8
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #4
  %52 = load i32, ptr %4, align 4, !tbaa !9
  %53 = add nsw i32 %52, 1
  store i32 %53, ptr %4, align 4, !tbaa !9
  br label %121

54:                                               ; preds = %29, %25
  %55 = landingpad { ptr, i32 }
          cleanup
  %56 = extractvalue { ptr, i32 } %55, 0
  store ptr %56, ptr %10, align 8
  %57 = extractvalue { ptr, i32 } %55, 1
  store i32 %57, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #4
  br label %132

58:                                               ; preds = %40
  %59 = landingpad { ptr, i32 }
          cleanup
  %60 = extractvalue { ptr, i32 } %59, 0
  store ptr %60, ptr %10, align 8
  %61 = extractvalue { ptr, i32 } %59, 1
  store i32 %61, ptr %11, align 4
  br label %66

62:                                               ; preds = %45, %44
  %63 = landingpad { ptr, i32 }
          cleanup
  %64 = extractvalue { ptr, i32 } %63, 0
  store ptr %64, ptr %10, align 8
  %65 = extractvalue { ptr, i32 } %63, 1
  store i32 %65, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #4
  br label %66

66:                                               ; preds = %62, %58
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #4
  br label %132

67:                                               ; preds = %33
  %68 = load i32, ptr %5, align 4, !tbaa !9
  %69 = icmp eq i32 %68, 1
  br i1 %69, label %70, label %85

70:                                               ; preds = %67
  call void @llvm.lifetime.start.p0(i64 4, ptr %16) #4
  %71 = load i32, ptr %4, align 4, !tbaa !9
  %72 = sext i32 %71 to i64
  %73 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %72)
          to label %74 unwind label %81

74:                                               ; preds = %70
  %75 = load i8, ptr %73, align 1, !tbaa !11
  %76 = sext i8 %75 to i32
  store i32 %76, ptr %16, align 4, !tbaa !9
  %77 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixEOi(ptr noundef nonnull align 8 dereferenceable(56) %7, ptr noundef nonnull align 4 dereferenceable(4) %16)
          to label %78 unwind label %81

78:                                               ; preds = %74
  %79 = load i32, ptr %77, align 4, !tbaa !9
  %80 = add nsw i32 %79, 1
  store i32 %80, ptr %77, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #4
  br label %85

81:                                               ; preds = %74, %70
  %82 = landingpad { ptr, i32 }
          cleanup
  %83 = extractvalue { ptr, i32 } %82, 0
  store ptr %83, ptr %10, align 8
  %84 = extractvalue { ptr, i32 } %82, 1
  store i32 %84, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #4
  br label %132

85:                                               ; preds = %78, %67
  call void @llvm.lifetime.start.p0(i64 4, ptr %17) #4
  %86 = load i32, ptr %4, align 4, !tbaa !9
  %87 = sext i32 %86 to i64
  %88 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %87)
          to label %89 unwind label %109

89:                                               ; preds = %85
  %90 = load i8, ptr %88, align 1, !tbaa !11
  %91 = sext i8 %90 to i32
  store i32 %91, ptr %17, align 4, !tbaa !9
  %92 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixEOi(ptr noundef nonnull align 8 dereferenceable(56) %7, ptr noundef nonnull align 4 dereferenceable(4) %17)
          to label %93 unwind label %109

93:                                               ; preds = %89
  %94 = load i32, ptr %92, align 4, !tbaa !9
  %95 = icmp sgt i32 %94, 1
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #4
  br i1 %95, label %96, label %117

96:                                               ; preds = %93
  call void @llvm.lifetime.start.p0(i64 4, ptr %18) #4
  %97 = load i32, ptr %3, align 4, !tbaa !9
  %98 = sext i32 %97 to i64
  %99 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %98)
          to label %100 unwind label %113

100:                                              ; preds = %96
  %101 = load i8, ptr %99, align 1, !tbaa !11
  %102 = sext i8 %101 to i32
  store i32 %102, ptr %18, align 4, !tbaa !9
  %103 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixEOi(ptr noundef nonnull align 8 dereferenceable(56) %7, ptr noundef nonnull align 4 dereferenceable(4) %18)
          to label %104 unwind label %113

104:                                              ; preds = %100
  %105 = load i32, ptr %103, align 4, !tbaa !9
  %106 = sub nsw i32 %105, 1
  store i32 %106, ptr %103, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %18) #4
  %107 = load i32, ptr %3, align 4, !tbaa !9
  %108 = add nsw i32 %107, 1
  store i32 %108, ptr %3, align 4, !tbaa !9
  store i32 0, ptr %5, align 4, !tbaa !9
  br label %120

109:                                              ; preds = %89, %85
  %110 = landingpad { ptr, i32 }
          cleanup
  %111 = extractvalue { ptr, i32 } %110, 0
  store ptr %111, ptr %10, align 8
  %112 = extractvalue { ptr, i32 } %110, 1
  store i32 %112, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #4
  br label %132

113:                                              ; preds = %100, %96
  %114 = landingpad { ptr, i32 }
          cleanup
  %115 = extractvalue { ptr, i32 } %114, 0
  store ptr %115, ptr %10, align 8
  %116 = extractvalue { ptr, i32 } %114, 1
  store i32 %116, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %18) #4
  br label %132

117:                                              ; preds = %93
  %118 = load i32, ptr %4, align 4, !tbaa !9
  %119 = add nsw i32 %118, 1
  store i32 %119, ptr %4, align 4, !tbaa !9
  store i32 1, ptr %5, align 4, !tbaa !9
  br label %120

120:                                              ; preds = %117, %104
  br label %121

121:                                              ; preds = %120, %47
  call void @llvm.lifetime.start.p0(i64 4, ptr %19) #4
  %122 = load i32, ptr %4, align 4, !tbaa !9
  %123 = load i32, ptr %3, align 4, !tbaa !9
  %124 = sub nsw i32 %122, %123
  store i32 %124, ptr %19, align 4, !tbaa !9
  %125 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %6, ptr noundef nonnull align 4 dereferenceable(4) %19)
          to label %126 unwind label %128

126:                                              ; preds = %121
  %127 = load i32, ptr %125, align 4, !tbaa !9
  store i32 %127, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  br label %20, !llvm.loop !12

128:                                              ; preds = %121
  %129 = landingpad { ptr, i32 }
          cleanup
  %130 = extractvalue { ptr, i32 } %129, 0
  store ptr %130, ptr %10, align 8
  %131 = extractvalue { ptr, i32 } %129, 1
  store i32 %131, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #4
  br label %132

132:                                              ; preds = %128, %113, %109, %81, %66, %54
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %7) #4
  call void @llvm.lifetime.end.p0(i64 56, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  br label %135

133:                                              ; preds = %20
  %134 = load i32, ptr %6, align 4, !tbaa !9
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %7) #4
  call void @llvm.lifetime.end.p0(i64 56, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  ret i32 %134

135:                                              ; preds = %132
  %136 = load ptr, ptr %10, align 8
  %137 = load i32, ptr %11, align 4
  %138 = insertvalue { ptr, i32 } poison, ptr %136, 0
  %139 = insertvalue { ptr, i32 } %138, i32 %137, 1
  resume { ptr, i32 } %139
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE4findERS5_(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 4 dereferenceable(4)) #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) #2 align 2

declare i32 @__gxx_personality_v0(...)

; 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 @_ZNSt8__detaileqERKNS_19_Node_iterator_baseISt4pairIKiiELb0EEES6_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE3endEv(ptr noundef nonnull align 8 dereferenceable(56)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE6insertIS4_IiiEEENSt9enable_ifIXsr16is_constructibleIS6_OT_EE5valueES4_INSt8__detail14_Node_iteratorIS6_Lb0ELb0EEEbEE4typeESD_(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 4 dereferenceable(8)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IRciTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixEOi(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #3

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #3 align 2

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


; 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::unordered_map" = type { %"class.std::_Hashtable" }
%"class.std::_Hashtable" = type { ptr, i64, %"struct.std::__detail::_Hash_node_base", i64, %"struct.std::__detail::_Prime_rehash_policy", ptr }
%"struct.std::__detail::_Hash_node_base" = type { ptr }
%"struct.std::__detail::_Prime_rehash_policy" = type { float, i64 }
%"struct.std::__detail::_Node_iterator" = type { %"struct.std::__detail::_Node_iterator_base" }
%"struct.std::__detail::_Node_iterator_base" = type { ptr }
%"struct.std::pair.5" = type { i32, i32 }

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z24lengthOfLongestSubstringNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %0) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %2 = alloca i32, align 4
  %3 = alloca %"class.std::unordered_map", align 8
  %4 = alloca %"struct.std::__detail::_Node_iterator", align 8
  %5 = alloca i32, align 4
  %6 = alloca %"struct.std::__detail::_Node_iterator", align 8
  %7 = alloca %"struct.std::pair.5", align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #4
  store i32 0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 56, ptr nonnull %3) #4
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56) %3) #4
  %13 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #4
  %.not = icmp eq i64 %13, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1, %67
  %14 = phi i64 [ %71, %67 ], [ 0, %1 ]
  %.023 = phi i32 [ %.1, %67 ], [ 0, %1 ]
  %.01322 = phi i32 [ %.114, %67 ], [ 0, %1 ]
  %.01721 = phi i32 [ %.118, %67 ], [ 1, %1 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #4
  %15 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %14)
  %16 = load i8, ptr %15, align 1, !tbaa !9
  %17 = sext i8 %16 to i32
  store i32 %17, ptr %5, align 4, !tbaa !5
  %18 = invoke ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE4findERS5_(ptr noundef nonnull align 8 dereferenceable(56) %3, ptr noundef nonnull align 4 dereferenceable(4) %5)
          to label %19 unwind label %27

19:                                               ; preds = %.lr.ph
  store ptr %18, ptr %4, align 8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #4
  %20 = call ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE3endEv(ptr noundef nonnull align 8 dereferenceable(56) %3) #4
  store ptr %20, ptr %6, align 8
  %21 = call noundef zeroext i1 @_ZNSt8__detaileqERKNS_19_Node_iterator_baseISt4pairIKiiELb0EEES6_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %6) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #4
  br i1 %21, label %22, label %31

22:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #4
  %23 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %14)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %8) #4
  store i32 1, ptr %8, align 4, !tbaa !5
  call void @_ZNSt4pairIiiEC2IRciTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %7, ptr noundef nonnull align 1 dereferenceable(1) %23, ptr noundef nonnull align 4 dereferenceable(4) %8)
  %24 = invoke { ptr, i8 } @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE6insertIS4_IiiEEENSt9enable_ifIXsr16is_constructibleIS6_OT_EE5valueES4_INSt8__detail14_Node_iteratorIS6_Lb0ELb0EEEbEE4typeESD_(ptr noundef nonnull align 8 dereferenceable(56) %3, ptr noundef nonnull align 4 dereferenceable(8) %7)
          to label %25 unwind label %29

25:                                               ; preds = %22
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #4
  %26 = add nsw i32 %.01322, 1
  br label %67

27:                                               ; preds = %.lr.ph
  %28 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #4
  br label %74

29:                                               ; preds = %22
  %30 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #4
  br label %74

31:                                               ; preds = %19
  %32 = icmp eq i32 %.01721, 1
  br i1 %32, label %33, label %43

33:                                               ; preds = %31
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %9) #4
  %34 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %14)
  %35 = load i8, ptr %34, align 1, !tbaa !9
  %36 = sext i8 %35 to i32
  store i32 %36, ptr %9, align 4, !tbaa !5
  %37 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixEOi(ptr noundef nonnull align 8 dereferenceable(56) %3, ptr noundef nonnull align 4 dereferenceable(4) %9)
          to label %38 unwind label %41

38:                                               ; preds = %33
  %39 = load i32, ptr %37, align 4, !tbaa !5
  %40 = add nsw i32 %39, 1
  store i32 %40, ptr %37, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %9) #4
  br label %43

41:                                               ; preds = %33
  %42 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %9) #4
  br label %74

43:                                               ; preds = %38, %31
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %10) #4
  %44 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %14)
  %45 = load i8, ptr %44, align 1, !tbaa !9
  %46 = sext i8 %45 to i32
  store i32 %46, ptr %10, align 4, !tbaa !5
  %47 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixEOi(ptr noundef nonnull align 8 dereferenceable(56) %3, ptr noundef nonnull align 4 dereferenceable(4) %10)
          to label %48 unwind label %61

48:                                               ; preds = %43
  %49 = load i32, ptr %47, align 4, !tbaa !5
  %50 = icmp sgt i32 %49, 1
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %10) #4
  br i1 %50, label %51, label %65

51:                                               ; preds = %48
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %11) #4
  %52 = sext i32 %.023 to i64
  %53 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %52)
  %54 = load i8, ptr %53, align 1, !tbaa !9
  %55 = sext i8 %54 to i32
  store i32 %55, ptr %11, align 4, !tbaa !5
  %56 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixEOi(ptr noundef nonnull align 8 dereferenceable(56) %3, ptr noundef nonnull align 4 dereferenceable(4) %11)
          to label %57 unwind label %63

57:                                               ; preds = %51
  %58 = load i32, ptr %56, align 4, !tbaa !5
  %59 = add nsw i32 %58, -1
  store i32 %59, ptr %56, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %11) #4
  %60 = add nsw i32 %.023, 1
  br label %67

61:                                               ; preds = %43
  %62 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %10) #4
  br label %74

63:                                               ; preds = %51
  %64 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %11) #4
  br label %74

65:                                               ; preds = %48
  %66 = add nsw i32 %.01322, 1
  br label %67

67:                                               ; preds = %57, %65, %25
  %.118 = phi i32 [ %.01721, %25 ], [ 0, %57 ], [ 1, %65 ]
  %.114 = phi i32 [ %26, %25 ], [ %.01322, %57 ], [ %66, %65 ]
  %.1 = phi i32 [ %.023, %25 ], [ %60, %57 ], [ %.023, %65 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %12) #4
  %68 = sub nsw i32 %.114, %.1
  store i32 %68, ptr %12, align 4, !tbaa !5
  %69 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %2, ptr noundef nonnull align 4 dereferenceable(4) %12)
  %70 = load i32, ptr %69, align 4, !tbaa !5
  store i32 %70, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %12) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  %71 = sext i32 %.114 to i64
  %72 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #4
  %73 = icmp ugt i64 %72, %71
  br i1 %73, label %.lr.ph, label %._crit_edge.loopexit, !llvm.loop !10

74:                                               ; preds = %63, %61, %41, %29, %27
  %.pn = phi { ptr, i32 } [ %30, %29 ], [ %64, %63 ], [ %62, %61 ], [ %42, %41 ], [ %28, %27 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %3) #4
  call void @llvm.lifetime.end.p0(i64 56, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #4
  resume { ptr, i32 } %.pn

._crit_edge.loopexit:                             ; preds = %67
  %.pre = load i32, ptr %2, align 4, !tbaa !5
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %1
  %75 = phi i32 [ %.pre, %._crit_edge.loopexit ], [ 0, %1 ]
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %3) #4
  call void @llvm.lifetime.end.p0(i64 56, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #4
  ret i32 %75
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE4findERS5_(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 4 dereferenceable(4)) 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 #2 align 2

declare i32 @__gxx_personality_v0(...)

; 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 @_ZNSt8__detaileqERKNS_19_Node_iterator_baseISt4pairIKiiELb0EEES6_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE3endEv(ptr noundef nonnull align 8 dereferenceable(56)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE6insertIS4_IiiEEENSt9enable_ifIXsr16is_constructibleIS6_OT_EE5valueES4_INSt8__detail14_Node_iteratorIS6_Lb0ELb0EEEbEE4typeESD_(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IRciTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixEOi(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #3 align 2

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

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}


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