; LLVM IR from brpapa/algorithms :: solutions/codeforces (25-D)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%class.UFDS = type <{ %"class.std::vector", %"class.std::vector", i32, [4 x i8] }>
%"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::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = 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::pair" = type { i32, i32 }

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca %class.UFDS, align 8
  %4 = alloca %"class.std::vector.0", align 8
  %5 = alloca %"class.std::vector.0", align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca ptr, align 8
  %12 = alloca i32, align 4
  %13 = alloca %"struct.std::pair", align 4
  %14 = alloca i32, align 4
  %15 = alloca %"struct.std::pair", align 4
  %16 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #7
  %17 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
  call void @llvm.lifetime.start.p0(i64 56, ptr %3) #7
  %18 = load i32, ptr %2, align 4, !tbaa !5
  %19 = add nsw i32 %18, 1
  call void @_ZN4UFDSC2Ei(ptr noundef nonnull align 8 dereferenceable(52) %3, i32 noundef %19)
  call void @llvm.lifetime.start.p0(i64 24, ptr %4) #7
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #7
  call void @llvm.lifetime.start.p0(i64 24, ptr %5) #7
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #7
  store i32 -1, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #7
  store i32 0, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #7
  store i32 0, ptr %8, align 4, !tbaa !5
  br label %20

20:                                               ; preds = %59, %0
  %21 = load i32, ptr %8, align 4, !tbaa !5
  %22 = load i32, ptr %2, align 4, !tbaa !5
  %23 = sub nsw i32 %22, 1
  %24 = icmp slt i32 %21, %23
  br i1 %24, label %26, label %25

25:                                               ; preds = %20
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  br label %63

26:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #7
  %27 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %9)
          to label %28 unwind label %41

28:                                               ; preds = %26
  %29 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %27, ptr noundef nonnull align 4 dereferenceable(4) %10)
          to label %30 unwind label %41

30:                                               ; preds = %28
  %31 = load i32, ptr %9, align 4, !tbaa !5
  %32 = load i32, ptr %10, align 4, !tbaa !5
  %33 = invoke noundef zeroext i1 @_ZN4UFDS9isSameSetEii(ptr noundef nonnull align 8 dereferenceable(52) %3, i32 noundef %31, i32 noundef %32)
          to label %34 unwind label %41

34:                                               ; preds = %30
  br i1 %33, label %35, label %49

35:                                               ; preds = %34
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #7
  %36 = invoke i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %9, ptr noundef nonnull align 4 dereferenceable(4) %10)
          to label %37 unwind label %45

37:                                               ; preds = %35
  store i64 %36, ptr %13, align 4
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %4, ptr noundef nonnull align 4 dereferenceable(8) %13)
          to label %38 unwind label %45

38:                                               ; preds = %37
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #7
  %39 = load i32, ptr %7, align 4, !tbaa !5
  %40 = add nsw i32 %39, 1
  store i32 %40, ptr %7, align 4, !tbaa !5
  br label %53

41:                                               ; preds = %49, %30, %28, %26
  %42 = landingpad { ptr, i32 }
          cleanup
  %43 = extractvalue { ptr, i32 } %42, 0
  store ptr %43, ptr %11, align 8
  %44 = extractvalue { ptr, i32 } %42, 1
  store i32 %44, ptr %12, align 4
  br label %62

45:                                               ; preds = %37, %35
  %46 = landingpad { ptr, i32 }
          cleanup
  %47 = extractvalue { ptr, i32 } %46, 0
  store ptr %47, ptr %11, align 8
  %48 = extractvalue { ptr, i32 } %46, 1
  store i32 %48, ptr %12, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #7
  br label %62

49:                                               ; preds = %34
  %50 = load i32, ptr %9, align 4, !tbaa !5
  %51 = load i32, ptr %10, align 4, !tbaa !5
  invoke void @_ZN4UFDS8unionSetEii(ptr noundef nonnull align 8 dereferenceable(52) %3, i32 noundef %50, i32 noundef %51)
          to label %52 unwind label %41

52:                                               ; preds = %49
  br label %53

53:                                               ; preds = %52, %38
  %54 = load i32, ptr %6, align 4, !tbaa !5
  %55 = icmp eq i32 %54, -1
  br i1 %55, label %56, label %58

56:                                               ; preds = %53
  %57 = load i32, ptr %9, align 4, !tbaa !5
  store i32 %57, ptr %6, align 4, !tbaa !5
  br label %58

58:                                               ; preds = %56, %53
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #7
  br label %59

59:                                               ; preds = %58
  %60 = load i32, ptr %8, align 4, !tbaa !5
  %61 = add nsw i32 %60, 1
  store i32 %61, ptr %8, align 4, !tbaa !5
  br label %20, !llvm.loop !9

62:                                               ; preds = %45, %41
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  br label %160

63:                                               ; preds = %25
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #7
  store i32 1, ptr %14, align 4, !tbaa !5
  br label %64

64:                                               ; preds = %94, %63
  %65 = load i32, ptr %14, align 4, !tbaa !5
  %66 = load i32, ptr %2, align 4, !tbaa !5
  %67 = icmp sle i32 %65, %66
  br i1 %67, label %69, label %68

68:                                               ; preds = %64
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #7
  br label %98

69:                                               ; preds = %64
  %70 = load i32, ptr %14, align 4, !tbaa !5
  %71 = load i32, ptr %6, align 4, !tbaa !5
  %72 = invoke noundef zeroext i1 @_ZN4UFDS9isSameSetEii(ptr noundef nonnull align 8 dereferenceable(52) %3, i32 noundef %70, i32 noundef %71)
          to label %73 unwind label %85

73:                                               ; preds = %69
  br i1 %72, label %93, label %74

74:                                               ; preds = %73
  %75 = load i32, ptr %14, align 4, !tbaa !5
  %76 = load i32, ptr %6, align 4, !tbaa !5
  %77 = icmp ne i32 %75, %76
  br i1 %77, label %78, label %93

78:                                               ; preds = %74
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #7
  %79 = invoke i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %14, ptr noundef nonnull align 4 dereferenceable(4) %6)
          to label %80 unwind label %89

80:                                               ; preds = %78
  store i64 %79, ptr %15, align 4
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %5, ptr noundef nonnull align 4 dereferenceable(8) %15)
          to label %81 unwind label %89

81:                                               ; preds = %80
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #7
  %82 = load i32, ptr %14, align 4, !tbaa !5
  %83 = load i32, ptr %6, align 4, !tbaa !5
  invoke void @_ZN4UFDS8unionSetEii(ptr noundef nonnull align 8 dereferenceable(52) %3, i32 noundef %82, i32 noundef %83)
          to label %84 unwind label %85

84:                                               ; preds = %81
  br label %93

85:                                               ; preds = %81, %69
  %86 = landingpad { ptr, i32 }
          cleanup
  %87 = extractvalue { ptr, i32 } %86, 0
  store ptr %87, ptr %11, align 8
  %88 = extractvalue { ptr, i32 } %86, 1
  store i32 %88, ptr %12, align 4
  br label %97

89:                                               ; preds = %80, %78
  %90 = landingpad { ptr, i32 }
          cleanup
  %91 = extractvalue { ptr, i32 } %90, 0
  store ptr %91, ptr %11, align 8
  %92 = extractvalue { ptr, i32 } %90, 1
  store i32 %92, ptr %12, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #7
  br label %97

93:                                               ; preds = %84, %74, %73
  br label %94

94:                                               ; preds = %93
  %95 = load i32, ptr %14, align 4, !tbaa !5
  %96 = add nsw i32 %95, 1
  store i32 %96, ptr %14, align 4, !tbaa !5
  br label %64, !llvm.loop !11

97:                                               ; preds = %89, %85
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #7
  br label %160

98:                                               ; preds = %68
  %99 = load i32, ptr %7, align 4, !tbaa !5
  %100 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %99)
          to label %101 unwind label %110

101:                                              ; preds = %98
  %102 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %100, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %103 unwind label %110

103:                                              ; preds = %101
  call void @llvm.lifetime.start.p0(i64 4, ptr %16) #7
  store i32 0, ptr %16, align 4, !tbaa !5
  br label %104

104:                                              ; preds = %151, %103
  %105 = load i32, ptr %16, align 4, !tbaa !5
  %106 = sext i32 %105 to i64
  %107 = call noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #7
  %108 = icmp ult i64 %106, %107
  br i1 %108, label %114, label %109

109:                                              ; preds = %104
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #7
  br label %158

110:                                              ; preds = %101, %98
  %111 = landingpad { ptr, i32 }
          cleanup
  %112 = extractvalue { ptr, i32 } %111, 0
  store ptr %112, ptr %11, align 8
  %113 = extractvalue { ptr, i32 } %111, 1
  store i32 %113, ptr %12, align 4
  br label %160

114:                                              ; preds = %104
  %115 = load i32, ptr %16, align 4, !tbaa !5
  %116 = sext i32 %115 to i64
  %117 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %116) #7
  %118 = getelementptr inbounds %"struct.std::pair", ptr %117, i32 0, i32 0
  %119 = load i32, ptr %118, align 4, !tbaa !12
  %120 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %119)
          to label %121 unwind label %154

121:                                              ; preds = %114
  %122 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %120, ptr noundef @.str)
          to label %123 unwind label %154

123:                                              ; preds = %121
  %124 = load i32, ptr %16, align 4, !tbaa !5
  %125 = sext i32 %124 to i64
  %126 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %125) #7
  %127 = getelementptr inbounds %"struct.std::pair", ptr %126, i32 0, i32 1
  %128 = load i32, ptr %127, align 4, !tbaa !14
  %129 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %122, i32 noundef %128)
          to label %130 unwind label %154

130:                                              ; preds = %123
  %131 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %129, ptr noundef @.str)
          to label %132 unwind label %154

132:                                              ; preds = %130
  %133 = load i32, ptr %16, align 4, !tbaa !5
  %134 = sext i32 %133 to i64
  %135 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %134) #7
  %136 = getelementptr inbounds %"struct.std::pair", ptr %135, i32 0, i32 0
  %137 = load i32, ptr %136, align 4, !tbaa !12
  %138 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %131, i32 noundef %137)
          to label %139 unwind label %154

139:                                              ; preds = %132
  %140 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %138, ptr noundef @.str)
          to label %141 unwind label %154

141:                                              ; preds = %139
  %142 = load i32, ptr %16, align 4, !tbaa !5
  %143 = sext i32 %142 to i64
  %144 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %143) #7
  %145 = getelementptr inbounds %"struct.std::pair", ptr %144, i32 0, i32 1
  %146 = load i32, ptr %145, align 4, !tbaa !14
  %147 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %140, i32 noundef %146)
          to label %148 unwind label %154

148:                                              ; preds = %141
  %149 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %147, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %150 unwind label %154

150:                                              ; preds = %148
  br label %151

151:                                              ; preds = %150
  %152 = load i32, ptr %16, align 4, !tbaa !5
  %153 = add nsw i32 %152, 1
  store i32 %153, ptr %16, align 4, !tbaa !5
  br label %104, !llvm.loop !15

154:                                              ; preds = %148, %141, %139, %132, %130, %123, %121, %114
  %155 = landingpad { ptr, i32 }
          cleanup
  %156 = extractvalue { ptr, i32 } %155, 0
  store ptr %156, ptr %11, align 8
  %157 = extractvalue { ptr, i32 } %155, 1
  store i32 %157, ptr %12, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #7
  br label %160

158:                                              ; preds = %109
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #7
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #7
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %4) #7
  call void @_ZN4UFDSD2Ev(ptr noundef nonnull align 8 dereferenceable(52) %3) #7
  call void @llvm.lifetime.end.p0(i64 56, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  %159 = load i32, ptr %1, align 4
  ret i32 %159

160:                                              ; preds = %154, %110, %97, %62
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #7
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #7
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %4) #7
  call void @_ZN4UFDSD2Ev(ptr noundef nonnull align 8 dereferenceable(52) %3) #7
  call void @llvm.lifetime.end.p0(i64 56, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  br label %161

161:                                              ; preds = %160
  %162 = load ptr, ptr %11, align 8
  %163 = load i32, ptr %12, align 4
  %164 = insertvalue { ptr, i32 } poison, ptr %162, 0
  %165 = insertvalue { ptr, i32 } %164, i32 %163, 1
  resume { ptr, i32 } %165
}

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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4UFDSC2Ei(ptr noundef nonnull align 8 dereferenceable(52), i32 noundef) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZN4UFDS9isSameSetEii(ptr noundef nonnull align 8 dereferenceable(52), i32 noundef, i32 noundef) #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)) #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #3

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4UFDS8unionSetEii(ptr noundef nonnull align 8 dereferenceable(52), i32 noundef, i32 noundef) #3 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #2

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #4 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #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) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN4UFDSD2Ev(ptr noundef nonnull align 8 dereferenceable(52)) unnamed_addr #6 align 2

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { mustprogress 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 #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 = { 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 = distinct !{!11, !10}
!12 = !{!13, !6, i64 0}
!13 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!14 = !{!13, !6, i64 4}
!15 = distinct !{!15, !10}


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

%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%class.UFDS = type <{ %"class.std::vector", %"class.std::vector", i32, [4 x i8] }>
%"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::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = 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::pair" = type { i32, i32 }

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %class.UFDS, align 8
  %3 = alloca %"class.std::vector.0", align 8
  %4 = alloca %"class.std::vector.0", align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca %"struct.std::pair", align 8
  %9 = alloca i32, align 4
  %10 = alloca %"struct.std::pair", align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #7
  %11 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  call void @llvm.lifetime.start.p0(i64 56, ptr nonnull %2) #7
  %12 = load i32, ptr %1, align 4, !tbaa !5
  %13 = add nsw i32 %12, 1
  call void @_ZN4UFDSC2Ei(ptr noundef nonnull align 8 dereferenceable(52) %2, i32 noundef %13)
  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 4, ptr nonnull %5) #7
  store i32 -1, ptr %5, align 4, !tbaa !5
  %14 = load i32, ptr %1, align 4, !tbaa !5
  %15 = icmp sgt i32 %14, 1
  br i1 %15, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %42, %0
  %16 = phi i32 [ %14, %0 ], [ %45, %42 ]
  %.017.lcssa = phi i32 [ 0, %0 ], [ %.118, %42 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %9) #7
  store i32 1, ptr %9, align 4, !tbaa !5
  %.not30 = icmp slt i32 %16, 1
  br i1 %.not30, label %._crit_edge34, label %.lr.ph33

.lr.ph:                                           ; preds = %0, %42
  %17 = phi i32 [ %43, %42 ], [ -1, %0 ]
  %.01629 = phi i32 [ %44, %42 ], [ 0, %0 ]
  %.01728 = phi i32 [ %.118, %42 ], [ 0, %0 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %7) #7
  %18 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %6)
          to label %19 unwind label %31

19:                                               ; preds = %.lr.ph
  %20 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %18, ptr noundef nonnull align 4 dereferenceable(4) %7)
          to label %21 unwind label %31

21:                                               ; preds = %19
  %22 = load i32, ptr %6, align 4, !tbaa !5
  %23 = load i32, ptr %7, align 4, !tbaa !5
  %24 = invoke noundef zeroext i1 @_ZN4UFDS9isSameSetEii(ptr noundef nonnull align 8 dereferenceable(52) %2, i32 noundef %22, i32 noundef %23)
          to label %25 unwind label %31

25:                                               ; preds = %21
  br i1 %24, label %26, label %35

26:                                               ; preds = %25
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #7
  %27 = invoke i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %6, ptr noundef nonnull align 4 dereferenceable(4) %7)
          to label %28 unwind label %33

28:                                               ; preds = %26
  store i64 %27, ptr %8, align 8
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr noundef nonnull align 4 dereferenceable(8) %8)
          to label %29 unwind label %33

29:                                               ; preds = %28
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #7
  %30 = add nsw i32 %.01728, 1
  br label %38

31:                                               ; preds = %35, %21, %19, %.lr.ph
  %32 = landingpad { ptr, i32 }
          cleanup
  br label %48

33:                                               ; preds = %28, %26
  %34 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #7
  br label %48

35:                                               ; preds = %25
  %36 = load i32, ptr %6, align 4, !tbaa !5
  %37 = load i32, ptr %7, align 4, !tbaa !5
  invoke void @_ZN4UFDS8unionSetEii(ptr noundef nonnull align 8 dereferenceable(52) %2, i32 noundef %36, i32 noundef %37)
          to label %38 unwind label %31

38:                                               ; preds = %35, %29
  %.118 = phi i32 [ %30, %29 ], [ %.01728, %35 ]
  %39 = icmp eq i32 %17, -1
  br i1 %39, label %40, label %42

40:                                               ; preds = %38
  %41 = load i32, ptr %6, align 4, !tbaa !5
  store i32 %41, ptr %5, align 4, !tbaa !5
  br label %42

42:                                               ; preds = %40, %38
  %43 = phi i32 [ %41, %40 ], [ %17, %38 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #7
  %44 = add nuw nsw i32 %.01629, 1
  %45 = load i32, ptr %1, align 4, !tbaa !5
  %46 = add nsw i32 %45, -1
  %47 = icmp slt i32 %44, %46
  br i1 %47, label %.lr.ph, label %._crit_edge, !llvm.loop !9

48:                                               ; preds = %33, %31
  %.pn23 = phi { ptr, i32 } [ %34, %33 ], [ %32, %31 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #7
  br label %104

._crit_edge34:                                    ; preds = %64, %._crit_edge
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %9) #7
  %49 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %.017.lcssa)
          to label %69 unwind label %72

.lr.ph33:                                         ; preds = %._crit_edge, %64
  %storemerge31 = phi i32 [ %66, %64 ], [ 1, %._crit_edge ]
  %50 = load i32, ptr %5, align 4, !tbaa !5
  %51 = invoke noundef zeroext i1 @_ZN4UFDS9isSameSetEii(ptr noundef nonnull align 8 dereferenceable(52) %2, i32 noundef %storemerge31, i32 noundef %50)
          to label %52 unwind label %60

52:                                               ; preds = %.lr.ph33
  %.pre40 = load i32, ptr %9, align 4, !tbaa !5
  %53 = load i32, ptr %5, align 4
  %.not21 = icmp eq i32 %.pre40, %53
  %or.cond = select i1 %51, i1 true, i1 %.not21
  br i1 %or.cond, label %64, label %54

54:                                               ; preds = %52
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %10) #7
  %55 = invoke i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %9, ptr noundef nonnull align 4 dereferenceable(4) %5)
          to label %56 unwind label %62

56:                                               ; preds = %54
  store i64 %55, ptr %10, align 8
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %4, ptr noundef nonnull align 4 dereferenceable(8) %10)
          to label %57 unwind label %62

57:                                               ; preds = %56
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #7
  %58 = load i32, ptr %9, align 4, !tbaa !5
  %59 = load i32, ptr %5, align 4, !tbaa !5
  invoke void @_ZN4UFDS8unionSetEii(ptr noundef nonnull align 8 dereferenceable(52) %2, i32 noundef %58, i32 noundef %59)
          to label %._crit_edge39 unwind label %60

._crit_edge39:                                    ; preds = %57
  %.pre = load i32, ptr %9, align 4, !tbaa !5
  br label %64

60:                                               ; preds = %57, %.lr.ph33
  %61 = landingpad { ptr, i32 }
          cleanup
  br label %68

62:                                               ; preds = %56, %54
  %63 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #7
  br label %68

64:                                               ; preds = %._crit_edge39, %52
  %65 = phi i32 [ %.pre, %._crit_edge39 ], [ %.pre40, %52 ]
  %66 = add nsw i32 %65, 1
  store i32 %66, ptr %9, align 4, !tbaa !5
  %67 = load i32, ptr %1, align 4, !tbaa !5
  %.not.not = icmp slt i32 %65, %67
  br i1 %.not.not, label %.lr.ph33, label %._crit_edge34, !llvm.loop !11

68:                                               ; preds = %62, %60
  %.pn = phi { ptr, i32 } [ %61, %60 ], [ %63, %62 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %9) #7
  br label %104

69:                                               ; preds = %._crit_edge34
  %70 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %49, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %.preheader unwind label %72

.preheader:                                       ; preds = %69
  %71 = call noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #7
  %.not = icmp eq i64 %71, 0
  br i1 %.not, label %._crit_edge37, label %.lr.ph36

._crit_edge37:                                    ; preds = %99, %.preheader
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #7
  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 @_ZN4UFDSD2Ev(ptr noundef nonnull align 8 dereferenceable(52) %2) #7
  call void @llvm.lifetime.end.p0(i64 56, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  ret i32 0

72:                                               ; preds = %69, %._crit_edge34
  %73 = landingpad { ptr, i32 }
          cleanup
  br label %104

.lr.ph36:                                         ; preds = %.preheader, %99
  %indvars.iv = phi i64 [ %indvars.iv.next, %99 ], [ 0, %.preheader ]
  %74 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %indvars.iv) #7
  %75 = load i32, ptr %74, align 4, !tbaa !12
  %76 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %75)
          to label %77 unwind label %102

77:                                               ; preds = %.lr.ph36
  %78 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %76, ptr noundef nonnull @.str)
          to label %79 unwind label %102

79:                                               ; preds = %77
  %80 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %indvars.iv) #7
  %81 = getelementptr inbounds i8, ptr %80, i64 4
  %82 = load i32, ptr %81, align 4, !tbaa !14
  %83 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %78, i32 noundef %82)
          to label %84 unwind label %102

84:                                               ; preds = %79
  %85 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %83, ptr noundef nonnull @.str)
          to label %86 unwind label %102

86:                                               ; preds = %84
  %87 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %indvars.iv) #7
  %88 = load i32, ptr %87, align 4, !tbaa !12
  %89 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %85, i32 noundef %88)
          to label %90 unwind label %102

90:                                               ; preds = %86
  %91 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %89, ptr noundef nonnull @.str)
          to label %92 unwind label %102

92:                                               ; preds = %90
  %93 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %indvars.iv) #7
  %94 = getelementptr inbounds i8, ptr %93, i64 4
  %95 = load i32, ptr %94, align 4, !tbaa !14
  %96 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %91, i32 noundef %95)
          to label %97 unwind label %102

97:                                               ; preds = %92
  %98 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %96, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %99 unwind label %102

99:                                               ; preds = %97
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %100 = call noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #7
  %101 = icmp ugt i64 %100, %indvars.iv.next
  br i1 %101, label %.lr.ph36, label %._crit_edge37, !llvm.loop !15

102:                                              ; preds = %97, %92, %90, %86, %84, %79, %77, %.lr.ph36
  %103 = landingpad { ptr, i32 }
          cleanup
  br label %104

104:                                              ; preds = %102, %72, %68, %48
  %.pn23.pn = phi { ptr, i32 } [ %.pn23, %48 ], [ %.pn, %68 ], [ %103, %102 ], [ %73, %72 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #7
  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 @_ZN4UFDSD2Ev(ptr noundef nonnull align 8 dereferenceable(52) %2) #7
  call void @llvm.lifetime.end.p0(i64 56, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  resume { ptr, i32 } %.pn23.pn
}

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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4UFDSC2Ei(ptr noundef nonnull align 8 dereferenceable(52), i32 noundef) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZN4UFDS9isSameSetEii(ptr noundef nonnull align 8 dereferenceable(52), i32 noundef, i32 noundef) 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 #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4UFDS8unionSetEii(ptr noundef nonnull align 8 dereferenceable(52), i32 noundef, i32 noundef) local_unnamed_addr #3 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #2

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #4 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #5

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN4UFDSD2Ev(ptr noundef nonnull align 8 dereferenceable(52)) unnamed_addr #6 align 2

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { mustprogress 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 #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 = { 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 = distinct !{!11, !10}
!12 = !{!13, !6, i64 0}
!13 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!14 = !{!13, !6, i64 4}
!15 = distinct !{!15, !10}


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