; LLVM IR from xirc/cp-algorithm :: atcoder/abc111/C/main.ll (Z5solvev)

; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"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 }
%"class.std::vector.5" = type { %"struct.std::_Vector_base.6" }
%"struct.std::_Vector_base.6" = 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 }
%"struct.std::__detail::_Node_iterator" = type { %"struct.std::__detail::_Node_iterator_base" }
%"struct.std::__detail::_Node_iterator_base" = type { ptr }
%"struct.std::pair" = type { i32, i32 }
%"struct.std::pair.10" = type { i32, i32 }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@N = external dso_local global i32, align 4
@V = external dso_local global %"class.std::vector", align 8
@.str = external hidden unnamed_addr constant [11 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [77 x i8], align 1
@__PRETTY_FUNCTION__._Z5solvev = external hidden unnamed_addr constant [12 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z5solvev() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca %"class.std::unordered_map", align 8
  %4 = alloca %"class.std::unordered_map", align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca %"class.std::vector.5", align 8
  %9 = alloca %"class.std::vector.5", align 8
  %10 = alloca ptr, align 8
  %11 = alloca %"struct.std::__detail::_Node_iterator", align 8
  %12 = alloca %"struct.std::__detail::_Node_iterator", align 8
  %13 = alloca %"struct.std::pair", align 4
  %14 = alloca %"struct.std::pair.10", align 4
  %15 = alloca ptr, align 8
  %16 = alloca %"struct.std::__detail::_Node_iterator", align 8
  %17 = alloca %"struct.std::__detail::_Node_iterator", align 8
  %18 = alloca %"struct.std::pair", align 4
  %19 = alloca %"struct.std::pair.10", align 4
  %20 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %21 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %22 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %23 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %24 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %25 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %26 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %27 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %28 = alloca i32, align 4
  %29 = alloca i32, align 4
  %30 = alloca i32, align 4
  %31 = load i32, ptr @N, align 4, !tbaa !5
  %32 = srem i32 %31, 2
  %33 = icmp eq i32 %32, 0
  br i1 %33, label %34, label %35

34:                                               ; preds = %0
  br label %37

35:                                               ; preds = %0
  call void @__assert_fail(ptr noundef @.str, ptr noundef @.str.2, i32 noundef 9, ptr noundef @__PRETTY_FUNCTION__._Z5solvev) #7
  unreachable

36:                                               ; No predecessors!
  br label %37

37:                                               ; preds = %36, %34
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #8
  %38 = load i32, ptr @N, align 4, !tbaa !5
  %39 = sdiv i32 %38, 2
  store i32 %39, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 56, ptr %3) #8
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56) %3) #8
  call void @llvm.lifetime.start.p0(i64 56, ptr %4) #8
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56) %4) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #8
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %40

40:                                               ; preds = %70, %37
  %41 = load i32, ptr %5, align 4, !tbaa !5
  %42 = load i32, ptr @N, align 4, !tbaa !5
  %43 = icmp slt i32 %41, %42
  br i1 %43, label %45, label %44

44:                                               ; preds = %40
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #8
  br label %73

45:                                               ; preds = %40
  %46 = load i32, ptr %5, align 4, !tbaa !5
  %47 = and i32 %46, 1
  %48 = icmp ne i32 %47, 0
  br i1 %48, label %49, label %61

49:                                               ; preds = %45
  %50 = load i32, ptr %5, align 4, !tbaa !5
  %51 = sext i32 %50 to i64
  %52 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @V, i64 noundef %51) #8
  %53 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixERS5_(ptr noundef nonnull align 8 dereferenceable(56) %3, ptr noundef nonnull align 4 dereferenceable(4) %52)
          to label %54 unwind label %57

54:                                               ; preds = %49
  %55 = load i32, ptr %53, align 4, !tbaa !5
  %56 = add nsw i32 %55, 1
  store i32 %56, ptr %53, align 4, !tbaa !5
  br label %69

57:                                               ; preds = %61, %49
  %58 = landingpad { ptr, i32 }
          cleanup
  %59 = extractvalue { ptr, i32 } %58, 0
  store ptr %59, ptr %6, align 8
  %60 = extractvalue { ptr, i32 } %58, 1
  store i32 %60, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #8
  br label %225

61:                                               ; preds = %45
  %62 = load i32, ptr %5, align 4, !tbaa !5
  %63 = sext i32 %62 to i64
  %64 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @V, i64 noundef %63) #8
  %65 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixERS5_(ptr noundef nonnull align 8 dereferenceable(56) %4, ptr noundef nonnull align 4 dereferenceable(4) %64)
          to label %66 unwind label %57

66:                                               ; preds = %61
  %67 = load i32, ptr %65, align 4, !tbaa !5
  %68 = add nsw i32 %67, 1
  store i32 %68, ptr %65, align 4, !tbaa !5
  br label %69

69:                                               ; preds = %66, %54
  br label %70

70:                                               ; preds = %69
  %71 = load i32, ptr %5, align 4, !tbaa !5
  %72 = add nsw i32 %71, 1
  store i32 %72, ptr %5, align 4, !tbaa !5
  br label %40, !llvm.loop !9

73:                                               ; preds = %44
  call void @llvm.lifetime.start.p0(i64 24, ptr %8) #8
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %8) #8
  call void @llvm.lifetime.start.p0(i64 24, ptr %9) #8
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %9) #8
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #8
  store ptr %3, ptr %10, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #8
  %74 = load ptr, ptr %10, align 8, !tbaa !11
  %75 = call ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(56) %74) #8
  %76 = getelementptr inbounds %"struct.std::__detail::_Node_iterator", ptr %11, i32 0, i32 0
  %77 = getelementptr inbounds %"struct.std::__detail::_Node_iterator_base", ptr %76, i32 0, i32 0
  store ptr %75, ptr %77, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #8
  %78 = load ptr, ptr %10, align 8, !tbaa !11
  %79 = call ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE3endEv(ptr noundef nonnull align 8 dereferenceable(56) %78) #8
  %80 = getelementptr inbounds %"struct.std::__detail::_Node_iterator", ptr %12, i32 0, i32 0
  %81 = getelementptr inbounds %"struct.std::__detail::_Node_iterator_base", ptr %80, i32 0, i32 0
  store ptr %79, ptr %81, align 8
  br label %82

82:                                               ; preds = %91, %73
  %83 = call noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseISt4pairIKiiELb0EEES6_(ptr noundef nonnull align 8 dereferenceable(8) %11, ptr noundef nonnull align 8 dereferenceable(8) %12) #8
  br i1 %83, label %85, label %84

84:                                               ; preds = %82
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #8
  br label %97

85:                                               ; preds = %82
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #8
  %86 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNKSt8__detail14_Node_iteratorISt4pairIKiiELb0ELb0EEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %11) #8
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %13, ptr align 4 %86, i64 8, i1 false)
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #8
  %87 = getelementptr inbounds %"struct.std::pair", ptr %13, i32 0, i32 1
  %88 = getelementptr inbounds %"struct.std::pair", ptr %13, i32 0, i32 0
  invoke void @_ZNSt4pairIiiEC2IRiRKiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS6_S7_EEEbE4typeELb1EEEOS6_OS7_(ptr noundef nonnull align 4 dereferenceable(8) %14, ptr noundef nonnull align 4 dereferenceable(4) %87, ptr noundef nonnull align 4 dereferenceable(4) %88)
          to label %89 unwind label %93

89:                                               ; preds = %85
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %8, ptr noundef nonnull align 4 dereferenceable(8) %14)
          to label %90 unwind label %93

90:                                               ; preds = %89
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #8
  br label %91

91:                                               ; preds = %90
  %92 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt8__detail14_Node_iteratorISt4pairIKiiELb0ELb0EEppEv(ptr noundef nonnull align 8 dereferenceable(8) %11) #8
  br label %82

93:                                               ; preds = %89, %85
  %94 = landingpad { ptr, i32 }
          cleanup
  %95 = extractvalue { ptr, i32 } %94, 0
  store ptr %95, ptr %6, align 8
  %96 = extractvalue { ptr, i32 } %94, 1
  store i32 %96, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #8
  br label %224

97:                                               ; preds = %84
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #8
  store ptr %4, ptr %15, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #8
  %98 = load ptr, ptr %15, align 8, !tbaa !11
  %99 = call ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(56) %98) #8
  %100 = getelementptr inbounds %"struct.std::__detail::_Node_iterator", ptr %16, i32 0, i32 0
  %101 = getelementptr inbounds %"struct.std::__detail::_Node_iterator_base", ptr %100, i32 0, i32 0
  store ptr %99, ptr %101, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %17) #8
  %102 = load ptr, ptr %15, align 8, !tbaa !11
  %103 = call ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE3endEv(ptr noundef nonnull align 8 dereferenceable(56) %102) #8
  %104 = getelementptr inbounds %"struct.std::__detail::_Node_iterator", ptr %17, i32 0, i32 0
  %105 = getelementptr inbounds %"struct.std::__detail::_Node_iterator_base", ptr %104, i32 0, i32 0
  store ptr %103, ptr %105, align 8
  br label %106

106:                                              ; preds = %115, %97
  %107 = call noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseISt4pairIKiiELb0EEES6_(ptr noundef nonnull align 8 dereferenceable(8) %16, ptr noundef nonnull align 8 dereferenceable(8) %17) #8
  br i1 %107, label %109, label %108

108:                                              ; preds = %106
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #8
  br label %121

109:                                              ; preds = %106
  call void @llvm.lifetime.start.p0(i64 8, ptr %18) #8
  %110 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNKSt8__detail14_Node_iteratorISt4pairIKiiELb0ELb0EEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %16) #8
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %18, ptr align 4 %110, i64 8, i1 false)
  call void @llvm.lifetime.start.p0(i64 8, ptr %19) #8
  %111 = getelementptr inbounds %"struct.std::pair", ptr %18, i32 0, i32 1
  %112 = getelementptr inbounds %"struct.std::pair", ptr %18, i32 0, i32 0
  invoke void @_ZNSt4pairIiiEC2IRiRKiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS6_S7_EEEbE4typeELb1EEEOS6_OS7_(ptr noundef nonnull align 4 dereferenceable(8) %19, ptr noundef nonnull align 4 dereferenceable(4) %111, ptr noundef nonnull align 4 dereferenceable(4) %112)
          to label %113 unwind label %117

113:                                              ; preds = %109
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %9, ptr noundef nonnull align 4 dereferenceable(8) %19)
          to label %114 unwind label %117

114:                                              ; preds = %113
  call void @llvm.lifetime.end.p0(i64 8, ptr %19) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %18) #8
  br label %115

115:                                              ; preds = %114
  %116 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt8__detail14_Node_iteratorISt4pairIKiiELb0ELb0EEppEv(ptr noundef nonnull align 8 dereferenceable(8) %16) #8
  br label %106

117:                                              ; preds = %113, %109
  %118 = landingpad { ptr, i32 }
          cleanup
  %119 = extractvalue { ptr, i32 } %118, 0
  store ptr %119, ptr %6, align 8
  %120 = extractvalue { ptr, i32 } %118, 1
  store i32 %120, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %19) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %18) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #8
  br label %224

121:                                              ; preds = %108
  %122 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %8) #8
  %123 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %20, i32 0, i32 0
  store ptr %122, ptr %123, align 8
  %124 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %8) #8
  %125 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %21, i32 0, i32 0
  store ptr %124, ptr %125, align 8
  %126 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %20, i32 0, i32 0
  %127 = load ptr, ptr %126, align 8
  %128 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %21, i32 0, i32 0
  %129 = load ptr, ptr %128, align 8
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %127, ptr %129)
          to label %130 unwind label %177

130:                                              ; preds = %121
  %131 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %8) #8
  %132 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %22, i32 0, i32 0
  store ptr %131, ptr %132, align 8
  %133 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %8) #8
  %134 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %23, i32 0, i32 0
  store ptr %133, ptr %134, align 8
  %135 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %22, i32 0, i32 0
  %136 = load ptr, ptr %135, align 8
  %137 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %23, i32 0, i32 0
  %138 = load ptr, ptr %137, align 8
  invoke void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %136, ptr %138)
          to label %139 unwind label %177

139:                                              ; preds = %130
  %140 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %9) #8
  %141 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %24, i32 0, i32 0
  store ptr %140, ptr %141, align 8
  %142 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %9) #8
  %143 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %25, i32 0, i32 0
  store ptr %142, ptr %143, align 8
  %144 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %24, i32 0, i32 0
  %145 = load ptr, ptr %144, align 8
  %146 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %25, i32 0, i32 0
  %147 = load ptr, ptr %146, align 8
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %145, ptr %147)
          to label %148 unwind label %177

148:                                              ; preds = %139
  %149 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %9) #8
  %150 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %26, i32 0, i32 0
  store ptr %149, ptr %150, align 8
  %151 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %9) #8
  %152 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %27, i32 0, i32 0
  store ptr %151, ptr %152, align 8
  %153 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %26, i32 0, i32 0
  %154 = load ptr, ptr %153, align 8
  %155 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %27, i32 0, i32 0
  %156 = load ptr, ptr %155, align 8
  invoke void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %154, ptr %156)
          to label %157 unwind label %177

157:                                              ; preds = %148
  %158 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef 0) #8
  %159 = getelementptr inbounds %"struct.std::pair.10", ptr %158, i32 0, i32 1
  %160 = load i32, ptr %159, align 4, !tbaa !13
  %161 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %9, i64 noundef 0) #8
  %162 = getelementptr inbounds %"struct.std::pair.10", ptr %161, i32 0, i32 1
  %163 = load i32, ptr %162, align 4, !tbaa !13
  %164 = icmp ne i32 %160, %163
  br i1 %164, label %165, label %181

165:                                              ; preds = %157
  %166 = load i32, ptr %2, align 4, !tbaa !5
  %167 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef 0) #8
  %168 = getelementptr inbounds %"struct.std::pair.10", ptr %167, i32 0, i32 0
  %169 = load i32, ptr %168, align 4, !tbaa !15
  %170 = sub nsw i32 %166, %169
  %171 = load i32, ptr %2, align 4, !tbaa !5
  %172 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %9, i64 noundef 0) #8
  %173 = getelementptr inbounds %"struct.std::pair.10", ptr %172, i32 0, i32 0
  %174 = load i32, ptr %173, align 4, !tbaa !15
  %175 = sub nsw i32 %171, %174
  %176 = add nsw i32 %170, %175
  store i32 %176, ptr %1, align 4
  store i32 1, ptr %28, align 4
  br label %222

177:                                              ; preds = %148, %139, %130, %121
  %178 = landingpad { ptr, i32 }
          cleanup
  %179 = extractvalue { ptr, i32 } %178, 0
  store ptr %179, ptr %6, align 8
  %180 = extractvalue { ptr, i32 } %178, 1
  store i32 %180, ptr %7, align 4
  br label %224

181:                                              ; preds = %157
  %182 = load i32, ptr %2, align 4, !tbaa !5
  %183 = icmp eq i32 %182, 1
  br i1 %183, label %184, label %201

184:                                              ; preds = %181
  call void @llvm.lifetime.start.p0(i64 4, ptr %29) #8
  %185 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef 0) #8
  %186 = getelementptr inbounds %"struct.std::pair.10", ptr %185, i32 0, i32 0
  %187 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %9, i64 noundef 0) #8
  %188 = getelementptr inbounds %"struct.std::pair.10", ptr %187, i32 0, i32 0
  %189 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %186, ptr noundef nonnull align 4 dereferenceable(4) %188)
          to label %190 unwind label %197

190:                                              ; preds = %184
  %191 = load i32, ptr %189, align 4, !tbaa !5
  store i32 %191, ptr %29, align 4, !tbaa !5
  %192 = load i32, ptr %2, align 4, !tbaa !5
  %193 = load i32, ptr %29, align 4, !tbaa !5
  %194 = sub nsw i32 %192, %193
  %195 = load i32, ptr %2, align 4, !tbaa !5
  %196 = add nsw i32 %194, %195
  store i32 %196, ptr %1, align 4
  store i32 1, ptr %28, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %29) #8
  br label %222

197:                                              ; preds = %184
  %198 = landingpad { ptr, i32 }
          cleanup
  %199 = extractvalue { ptr, i32 } %198, 0
  store ptr %199, ptr %6, align 8
  %200 = extractvalue { ptr, i32 } %198, 1
  store i32 %200, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %29) #8
  br label %224

201:                                              ; preds = %181
  call void @llvm.lifetime.start.p0(i64 4, ptr %30) #8
  %202 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef 1) #8
  %203 = getelementptr inbounds %"struct.std::pair.10", ptr %202, i32 0, i32 0
  %204 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %9, i64 noundef 1) #8
  %205 = getelementptr inbounds %"struct.std::pair.10", ptr %204, i32 0, i32 0
  %206 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %203, ptr noundef nonnull align 4 dereferenceable(4) %205)
          to label %207 unwind label %218

207:                                              ; preds = %201
  %208 = load i32, ptr %206, align 4, !tbaa !5
  store i32 %208, ptr %30, align 4, !tbaa !5
  %209 = load i32, ptr %2, align 4, !tbaa !5
  %210 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef 0) #8
  %211 = getelementptr inbounds %"struct.std::pair.10", ptr %210, i32 0, i32 0
  %212 = load i32, ptr %211, align 4, !tbaa !15
  %213 = sub nsw i32 %209, %212
  %214 = load i32, ptr %2, align 4, !tbaa !5
  %215 = load i32, ptr %30, align 4, !tbaa !5
  %216 = sub nsw i32 %214, %215
  %217 = add nsw i32 %213, %216
  store i32 %217, ptr %1, align 4
  store i32 1, ptr %28, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %30) #8
  br label %222

218:                                              ; preds = %201
  %219 = landingpad { ptr, i32 }
          cleanup
  %220 = extractvalue { ptr, i32 } %219, 0
  store ptr %220, ptr %6, align 8
  %221 = extractvalue { ptr, i32 } %219, 1
  store i32 %221, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %30) #8
  br label %224

222:                                              ; preds = %207, %190, %165
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %9) #8
  call void @llvm.lifetime.end.p0(i64 24, ptr %9) #8
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %8) #8
  call void @llvm.lifetime.end.p0(i64 24, ptr %8) #8
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %4) #8
  call void @llvm.lifetime.end.p0(i64 56, ptr %4) #8
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %3) #8
  call void @llvm.lifetime.end.p0(i64 56, ptr %3) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #8
  %223 = load i32, ptr %1, align 4
  ret i32 %223

224:                                              ; preds = %218, %197, %177, %117, %93
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %9) #8
  call void @llvm.lifetime.end.p0(i64 24, ptr %9) #8
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %8) #8
  call void @llvm.lifetime.end.p0(i64 24, ptr %8) #8
  br label %225

225:                                              ; preds = %224, %57
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %4) #8
  call void @llvm.lifetime.end.p0(i64 56, ptr %4) #8
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %3) #8
  call void @llvm.lifetime.end.p0(i64 56, ptr %3) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #8
  br label %226

226:                                              ; preds = %225
  %227 = load ptr, ptr %6, align 8
  %228 = load i32, ptr %7, align 4
  %229 = insertvalue { ptr, i32 } poison, ptr %227, 0
  %230 = insertvalue { ptr, i32 } %229, i32 %228, 1
  resume { ptr, i32 } %230
}

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixERS5_(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #3 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) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(56)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE3endEv(ptr noundef nonnull align 8 dereferenceable(56)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseISt4pairIKiiELb0EEES6_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNKSt8__detail14_Node_iteratorISt4pairIKiiELb0ELb0EEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #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) #4

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(8)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IRiRKiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS6_S7_EEEbE4typeELb1EEEOS6_OS7_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt8__detail14_Node_iteratorISt4pairIKiiELb0ELb0EEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) #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) #3 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)) #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #6 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 = { noreturn nounwind "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 #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { 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 #6 = { 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 #7 = { noreturn nounwind }
attributes #8 = { nounwind }

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !12, i64 0}
!12 = !{!"any pointer", !7, i64 0}
!13 = !{!14, !6, i64 4}
!14 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!15 = !{!14, !6, i64 0}


; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"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 }
%"class.std::vector.5" = type { %"struct.std::_Vector_base.6" }
%"struct.std::_Vector_base.6" = 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 }
%"struct.std::__detail::_Node_iterator" = type { %"struct.std::__detail::_Node_iterator_base" }
%"struct.std::__detail::_Node_iterator_base" = type { ptr }
%"struct.std::pair" = type { i32, i32 }
%"struct.std::pair.10" = type { i32, i32 }

@N = external dso_local local_unnamed_addr global i32, align 4
@V = external dso_local global %"class.std::vector", align 8
@.str = external hidden unnamed_addr constant [11 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [77 x i8], align 1
@__PRETTY_FUNCTION__._Z5solvev = external hidden unnamed_addr constant [12 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z5solvev() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::unordered_map", align 8
  %2 = alloca %"class.std::unordered_map", align 8
  %3 = alloca %"class.std::vector.5", align 8
  %4 = alloca %"class.std::vector.5", align 8
  %5 = alloca %"struct.std::__detail::_Node_iterator", align 8
  %6 = alloca %"struct.std::__detail::_Node_iterator", align 8
  %7 = alloca %"struct.std::pair", align 8
  %8 = alloca %"struct.std::pair.10", align 4
  %9 = alloca %"struct.std::__detail::_Node_iterator", align 8
  %10 = alloca %"struct.std::__detail::_Node_iterator", align 8
  %11 = alloca %"struct.std::pair", align 8
  %12 = alloca %"struct.std::pair.10", align 4
  %13 = load i32, ptr @N, align 4, !tbaa !5
  %14 = and i32 %13, 1
  %15 = icmp eq i32 %14, 0
  br i1 %15, label %17, label %16

16:                                               ; preds = %0
  tail call void @__assert_fail(ptr noundef nonnull @.str, ptr noundef nonnull @.str.2, i32 noundef 9, ptr noundef nonnull @__PRETTY_FUNCTION__._Z5solvev) #6
  unreachable

17:                                               ; preds = %0
  call void @llvm.lifetime.start.p0(i64 56, ptr nonnull %1) #7
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56) %1) #7
  call void @llvm.lifetime.start.p0(i64 56, ptr nonnull %2) #7
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56) %2) #7
  %18 = load i32, ptr @N, align 4, !tbaa !5
  %19 = icmp sgt i32 %18, 0
  br i1 %19, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %30, %17
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #7
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #7
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #7
  %20 = call ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(56) %1) #7
  store ptr %20, ptr %5, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #7
  %21 = call ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE3endEv(ptr noundef nonnull align 8 dereferenceable(56) %1) #7
  store ptr %21, ptr %6, align 8
  %22 = call noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseISt4pairIKiiELb0EEES6_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %6) #7
  br i1 %22, label %.lr.ph43, label %._crit_edge44

.lr.ph43:                                         ; preds = %._crit_edge
  %23 = getelementptr inbounds i8, ptr %7, i64 4
  br label %40

.lr.ph:                                           ; preds = %17, %30
  %indvars.iv = phi i64 [ %indvars.iv.next, %30 ], [ 0, %17 ]
  %24 = and i64 %indvars.iv, 1
  %.not34 = icmp eq i64 %24, 0
  %25 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @V, i64 noundef %indvars.iv) #7
  %26 = select i1 %.not34, ptr %2, ptr %1
  %27 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixERS5_(ptr noundef nonnull align 8 dereferenceable(56) %26, ptr noundef nonnull align 4 dereferenceable(4) %25)
          to label %30 unwind label %28

28:                                               ; preds = %.lr.ph
  %29 = landingpad { ptr, i32 }
          cleanup
  br label %102

30:                                               ; preds = %.lr.ph
  %31 = load i32, ptr %27, align 4, !tbaa !5
  %32 = add nsw i32 %31, 1
  store i32 %32, ptr %27, align 4, !tbaa !5
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %33 = load i32, ptr @N, align 4, !tbaa !5
  %34 = sext i32 %33 to i64
  %35 = icmp slt i64 %indvars.iv.next, %34
  br i1 %35, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge44:                                    ; preds = %43, %._crit_edge
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %9) #7
  %36 = call ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(56) %2) #7
  store ptr %36, ptr %9, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %10) #7
  %37 = call ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE3endEv(ptr noundef nonnull align 8 dereferenceable(56) %2) #7
  store ptr %37, ptr %10, align 8
  %38 = call noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseISt4pairIKiiELb0EEES6_(ptr noundef nonnull align 8 dereferenceable(8) %9, ptr noundef nonnull align 8 dereferenceable(8) %10) #7
  br i1 %38, label %.lr.ph46, label %._crit_edge47

.lr.ph46:                                         ; preds = %._crit_edge44
  %39 = getelementptr inbounds i8, ptr %11, i64 4
  br label %50

40:                                               ; preds = %.lr.ph43, %43
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #7
  %41 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNKSt8__detail14_Node_iteratorISt4pairIKiiELb0ELb0EEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #7
  %42 = load i64, ptr %41, align 4
  store i64 %42, ptr %7, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #7
  call void @_ZNSt4pairIiiEC2IRiRKiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS6_S7_EEEbE4typeELb1EEEOS6_OS7_(ptr noundef nonnull align 4 dereferenceable(8) %8, ptr noundef nonnull align 4 dereferenceable(4) %23, ptr noundef nonnull align 4 dereferenceable(4) %7)
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr noundef nonnull align 4 dereferenceable(8) %8)
          to label %43 unwind label %46

43:                                               ; preds = %40
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #7
  %44 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt8__detail14_Node_iteratorISt4pairIKiiELb0ELb0EEppEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #7
  %45 = call noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseISt4pairIKiiELb0EEES6_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %6) #7
  br i1 %45, label %40, label %._crit_edge44

46:                                               ; preds = %40
  %47 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #7
  br label %101

._crit_edge47:                                    ; preds = %53, %._crit_edge44
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #7
  %48 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  %49 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %48, ptr %49)
          to label %58 unwind label %81

50:                                               ; preds = %.lr.ph46, %53
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %11) #7
  %51 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNKSt8__detail14_Node_iteratorISt4pairIKiiELb0ELb0EEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %9) #7
  %52 = load i64, ptr %51, align 4
  store i64 %52, ptr %11, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %12) #7
  call void @_ZNSt4pairIiiEC2IRiRKiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS6_S7_EEEbE4typeELb1EEEOS6_OS7_(ptr noundef nonnull align 4 dereferenceable(8) %12, ptr noundef nonnull align 4 dereferenceable(4) %39, ptr noundef nonnull align 4 dereferenceable(4) %11)
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %4, ptr noundef nonnull align 4 dereferenceable(8) %12)
          to label %53 unwind label %56

53:                                               ; preds = %50
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %12) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %11) #7
  %54 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt8__detail14_Node_iteratorISt4pairIKiiELb0ELb0EEppEv(ptr noundef nonnull align 8 dereferenceable(8) %9) #7
  %55 = call noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseISt4pairIKiiELb0EEES6_(ptr noundef nonnull align 8 dereferenceable(8) %9, ptr noundef nonnull align 8 dereferenceable(8) %10) #7
  br i1 %55, label %50, label %._crit_edge47

56:                                               ; preds = %50
  %57 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %12) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %11) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #7
  br label %101

58:                                               ; preds = %._crit_edge47
  %59 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  %60 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  invoke void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %59, ptr %60)
          to label %61 unwind label %81

61:                                               ; preds = %58
  %62 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #7
  %63 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #7
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %62, ptr %63)
          to label %64 unwind label %81

64:                                               ; preds = %61
  %65 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #7
  %66 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #7
  invoke void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %65, ptr %66)
          to label %67 unwind label %81

67:                                               ; preds = %64
  %68 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef 0) #7
  %69 = getelementptr inbounds i8, ptr %68, i64 4
  %70 = load i32, ptr %69, align 4, !tbaa !11
  %71 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef 0) #7
  %72 = getelementptr inbounds i8, ptr %71, i64 4
  %73 = load i32, ptr %72, align 4, !tbaa !11
  %.not = icmp eq i32 %70, %73
  br i1 %.not, label %83, label %74

74:                                               ; preds = %67
  %75 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef 0) #7
  %76 = load i32, ptr %75, align 4, !tbaa !13
  %77 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef 0) #7
  %78 = load i32, ptr %77, align 4, !tbaa !13
  %79 = add i32 %76, %78
  %80 = sub i32 %13, %79
  br label %100

81:                                               ; preds = %64, %61, %58, %._crit_edge47
  %82 = landingpad { ptr, i32 }
          cleanup
  br label %101

83:                                               ; preds = %67
  %84 = icmp eq i32 %13, 2
  br i1 %84, label %85, label %91

85:                                               ; preds = %83
  %86 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef 0) #7
  %87 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef 0) #7
  %88 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %86, ptr noundef nonnull align 4 dereferenceable(4) %87)
  %89 = load i32, ptr %88, align 4, !tbaa !5
  %90 = sub i32 2, %89
  br label %100

91:                                               ; preds = %83
  %92 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef 1) #7
  %93 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef 1) #7
  %94 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %92, ptr noundef nonnull align 4 dereferenceable(4) %93)
  %95 = load i32, ptr %94, align 4, !tbaa !5
  %96 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef 0) #7
  %97 = load i32, ptr %96, align 4, !tbaa !13
  %98 = add i32 %95, %97
  %99 = sub i32 %13, %98
  br label %100

100:                                              ; preds = %91, %85, %74
  %.0 = phi i32 [ %80, %74 ], [ %90, %85 ], [ %99, %91 ]
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #7
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #7
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %2) #7
  call void @llvm.lifetime.end.p0(i64 56, ptr nonnull %2) #7
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %1) #7
  call void @llvm.lifetime.end.p0(i64 56, ptr nonnull %1) #7
  ret i32 %.0

101:                                              ; preds = %81, %56, %46
  %.pn = phi { ptr, i32 } [ %47, %46 ], [ %57, %56 ], [ %82, %81 ]
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #7
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #7
  br label %102

102:                                              ; preds = %101, %28
  %.pn35 = phi { ptr, i32 } [ %29, %28 ], [ %.pn, %101 ]
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %2) #7
  call void @llvm.lifetime.end.p0(i64 56, ptr nonnull %2) #7
  call void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %1) #7
  call void @llvm.lifetime.end.p0(i64 56, ptr nonnull %1) #7
  resume { ptr, i32 } %.pn35
}

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEEixERS5_(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 dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #3 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) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE5beginEv(ptr noundef nonnull align 8 dereferenceable(56)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEE3endEv(ptr noundef nonnull align 8 dereferenceable(56)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseISt4pairIKiiELb0EEES6_(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 noundef nonnull align 4 dereferenceable(8) ptr @_ZNKSt8__detail14_Node_iteratorISt4pairIKiiELb0ELb0EEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IRiRKiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS6_S7_EEEbE4typeELb1EEEOS6_OS7_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt8__detail14_Node_iteratorISt4pairIKiiELb0ELb0EEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) local_unnamed_addr #4

; 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 #3 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 #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_mapIiiSt4hashIiESt8equal_toIiESaISt4pairIKiiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #5 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 = { noreturn nounwind "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 #2 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #5 = { 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 #6 = { noreturn nounwind }
attributes #7 = { nounwind }

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !6, i64 4}
!12 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!13 = !{!12, !6, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass