; LLVM IR from Hunterdii/GeeksforGeeks-POTD :: October 2024 GFG SOLUTION (October-17)

; 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::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::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::__cxx11::basic_stringstream" = type { %"class.std::basic_iostream.base", %"class.std::__cxx11::basic_stringbuf", %"class.std::basic_ios" }
%"class.std::basic_iostream.base" = type { %"class.std::basic_istream.base", %"class.std::basic_ostream.base" }
%"class.std::basic_istream.base" = type { ptr, i64 }
%"class.std::basic_ostream.base" = type { ptr }
%"class.std::__cxx11::basic_stringbuf" = type { %"class.std::basic_streambuf", i32, %"class.std::__cxx11::basic_string" }
%"class.std::basic_streambuf" = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, %"class.std::locale" }
%class.Solution = type { i8 }
%"class.std::vector.3" = type { %"struct.std::_Vector_base.4" }
%"struct.std::_Vector_base.4" = type { %"struct.std::_Vector_base<Node *, std::allocator<Node *>>::_Vector_impl" }
%"struct.std::_Vector_base<Node *, std::allocator<Node *>>::_Vector_impl" = type { %"struct.std::_Vector_base<Node *, std::allocator<Node *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<Node *, std::allocator<Node *>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%struct.Node = type { i32, ptr }

@_ZSt3cin = external global %"class.std::basic_istream", align 8

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z9printListP4Node(ptr noundef) #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #1 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::__cxx11::basic_stringstream", align 8
  %8 = alloca i32, align 4
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca %class.Solution, align 1
  %13 = alloca %"class.std::vector.3", align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #9
  %14 = 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)
  %15 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEv(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin)
  br label %16

16:                                               ; preds = %103, %0
  %17 = load i32, ptr %2, align 4, !tbaa !5
  %18 = add nsw i32 %17, -1
  store i32 %18, ptr %2, align 4, !tbaa !5
  %19 = icmp ne i32 %17, 0
  br i1 %19, label %20, label %118

20:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 24, ptr %3) #9
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #9
  call void @llvm.lifetime.start.p0(i64 32, ptr %4) #9
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #9
  %21 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %4)
          to label %22 unwind label %37

22:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 392, ptr %7) #9
  %23 = invoke noundef i32 @_ZStorSt13_Ios_OpenmodeS_(i32 noundef 16, i32 noundef 8)
          to label %24 unwind label %41

24:                                               ; preds = %22
  invoke void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEEC1ERKNS_12basic_stringIcS2_S3_EESt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(128) %7, ptr noundef nonnull align 8 dereferenceable(32) %4, i32 noundef %23)
          to label %25 unwind label %41

25:                                               ; preds = %24
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #9
  br label %26

26:                                               ; preds = %36, %25
  %27 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %7, ptr noundef nonnull align 4 dereferenceable(4) %8)
          to label %28 unwind label %45

28:                                               ; preds = %26
  %29 = load ptr, ptr %27, align 8, !tbaa !9
  %30 = getelementptr i8, ptr %29, i64 -24
  %31 = load i64, ptr %30, align 8
  %32 = getelementptr inbounds i8, ptr %27, i64 %31
  %33 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %32)
          to label %34 unwind label %45

34:                                               ; preds = %28
  br i1 %33, label %35, label %49

35:                                               ; preds = %34
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr noundef nonnull align 4 dereferenceable(4) %8)
          to label %36 unwind label %45

36:                                               ; preds = %35
  br label %26, !llvm.loop !11

37:                                               ; preds = %20
  %38 = landingpad { ptr, i32 }
          cleanup
  %39 = extractvalue { ptr, i32 } %38, 0
  store ptr %39, ptr %5, align 8
  %40 = extractvalue { ptr, i32 } %38, 1
  store i32 %40, ptr %6, align 4
  br label %117

41:                                               ; preds = %24, %22
  %42 = landingpad { ptr, i32 }
          cleanup
  %43 = extractvalue { ptr, i32 } %42, 0
  store ptr %43, ptr %5, align 8
  %44 = extractvalue { ptr, i32 } %42, 1
  store i32 %44, ptr %6, align 4
  br label %116

45:                                               ; preds = %35, %28, %26
  %46 = landingpad { ptr, i32 }
          cleanup
  %47 = extractvalue { ptr, i32 } %46, 0
  store ptr %47, ptr %5, align 8
  %48 = extractvalue { ptr, i32 } %46, 1
  store i32 %48, ptr %6, align 4
  br label %115

49:                                               ; preds = %34
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #9
  %50 = invoke noalias noundef nonnull ptr @_Znwm(i64 noundef 16) #10
          to label %51 unwind label %62

51:                                               ; preds = %49
  %52 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef 0) #9
  %53 = load i32, ptr %52, align 4, !tbaa !5
  invoke void @_ZN4NodeC2Ei(ptr noundef nonnull align 8 dereferenceable(16) %50, i32 noundef %53)
          to label %54 unwind label %66

54:                                               ; preds = %51
  store ptr %50, ptr %9, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #9
  %55 = load ptr, ptr %9, align 8, !tbaa !13
  store ptr %55, ptr %10, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #9
  store i32 1, ptr %11, align 4, !tbaa !5
  br label %56

56:                                               ; preds = %83, %54
  %57 = load i32, ptr %11, align 4, !tbaa !5
  %58 = sext i32 %57 to i64
  %59 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #9
  %60 = icmp ult i64 %58, %59
  br i1 %60, label %70, label %61

61:                                               ; preds = %56
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #9
  br label %95

62:                                               ; preds = %49
  %63 = landingpad { ptr, i32 }
          cleanup
  %64 = extractvalue { ptr, i32 } %63, 0
  store ptr %64, ptr %5, align 8
  %65 = extractvalue { ptr, i32 } %63, 1
  store i32 %65, ptr %6, align 4
  br label %114

66:                                               ; preds = %51
  %67 = landingpad { ptr, i32 }
          cleanup
  %68 = extractvalue { ptr, i32 } %67, 0
  store ptr %68, ptr %5, align 8
  %69 = extractvalue { ptr, i32 } %67, 1
  store i32 %69, ptr %6, align 4
  call void @_ZdlPvm(ptr noundef %50, i64 noundef 16) #11
  br label %114

70:                                               ; preds = %56
  %71 = invoke noalias noundef nonnull ptr @_Znwm(i64 noundef 16) #10
          to label %72 unwind label %86

72:                                               ; preds = %70
  %73 = load i32, ptr %11, align 4, !tbaa !5
  %74 = sext i32 %73 to i64
  %75 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %74) #9
  %76 = load i32, ptr %75, align 4, !tbaa !5
  invoke void @_ZN4NodeC2Ei(ptr noundef nonnull align 8 dereferenceable(16) %71, i32 noundef %76)
          to label %77 unwind label %90

77:                                               ; preds = %72
  %78 = load ptr, ptr %10, align 8, !tbaa !13
  %79 = getelementptr inbounds %struct.Node, ptr %78, i32 0, i32 1
  store ptr %71, ptr %79, align 8, !tbaa !15
  %80 = load ptr, ptr %10, align 8, !tbaa !13
  %81 = getelementptr inbounds %struct.Node, ptr %80, i32 0, i32 1
  %82 = load ptr, ptr %81, align 8, !tbaa !15
  store ptr %82, ptr %10, align 8, !tbaa !13
  br label %83

83:                                               ; preds = %77
  %84 = load i32, ptr %11, align 4, !tbaa !5
  %85 = add nsw i32 %84, 1
  store i32 %85, ptr %11, align 4, !tbaa !5
  br label %56, !llvm.loop !17

86:                                               ; preds = %70
  %87 = landingpad { ptr, i32 }
          cleanup
  %88 = extractvalue { ptr, i32 } %87, 0
  store ptr %88, ptr %5, align 8
  %89 = extractvalue { ptr, i32 } %87, 1
  store i32 %89, ptr %6, align 4
  br label %94

90:                                               ; preds = %72
  %91 = landingpad { ptr, i32 }
          cleanup
  %92 = extractvalue { ptr, i32 } %91, 0
  store ptr %92, ptr %5, align 8
  %93 = extractvalue { ptr, i32 } %91, 1
  store i32 %93, ptr %6, align 4
  call void @_ZdlPvm(ptr noundef %71, i64 noundef 16) #11
  br label %94

94:                                               ; preds = %90, %86
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #9
  br label %113

95:                                               ; preds = %61
  call void @llvm.lifetime.start.p0(i64 1, ptr %12) #9
  call void @llvm.lifetime.start.p0(i64 24, ptr %13) #9
  %96 = load ptr, ptr %9, align 8, !tbaa !13
  invoke void @_ZN8Solution20alternatingSplitListEP4Node(ptr dead_on_unwind writable sret(%"class.std::vector.3") align 8 %13, ptr noundef nonnull align 1 dereferenceable(1) %12, ptr noundef %96)
          to label %97 unwind label %104

97:                                               ; preds = %95
  %98 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIP4NodeSaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %13, i64 noundef 0) #9
  %99 = load ptr, ptr %98, align 8, !tbaa !13
  invoke void @_Z9printListP4Node(ptr noundef %99)
          to label %100 unwind label %108

100:                                              ; preds = %97
  %101 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIP4NodeSaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %13, i64 noundef 1) #9
  %102 = load ptr, ptr %101, align 8, !tbaa !13
  invoke void @_Z9printListP4Node(ptr noundef %102)
          to label %103 unwind label %108

103:                                              ; preds = %100
  call void @_ZNSt6vectorIP4NodeSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %13) #9
  call void @llvm.lifetime.end.p0(i64 24, ptr %13) #9
  call void @llvm.lifetime.end.p0(i64 1, ptr %12) #9
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #9
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #9
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #9
  call void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(128) %7) #9
  call void @llvm.lifetime.end.p0(i64 392, ptr %7) #9
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #9
  call void @llvm.lifetime.end.p0(i64 32, ptr %4) #9
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #9
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #9
  br label %16, !llvm.loop !18

104:                                              ; preds = %95
  %105 = landingpad { ptr, i32 }
          cleanup
  %106 = extractvalue { ptr, i32 } %105, 0
  store ptr %106, ptr %5, align 8
  %107 = extractvalue { ptr, i32 } %105, 1
  store i32 %107, ptr %6, align 4
  br label %112

108:                                              ; preds = %100, %97
  %109 = landingpad { ptr, i32 }
          cleanup
  %110 = extractvalue { ptr, i32 } %109, 0
  store ptr %110, ptr %5, align 8
  %111 = extractvalue { ptr, i32 } %109, 1
  store i32 %111, ptr %6, align 4
  call void @_ZNSt6vectorIP4NodeSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %13) #9
  br label %112

112:                                              ; preds = %108, %104
  call void @llvm.lifetime.end.p0(i64 24, ptr %13) #9
  call void @llvm.lifetime.end.p0(i64 1, ptr %12) #9
  br label %113

113:                                              ; preds = %112, %94
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #9
  br label %114

114:                                              ; preds = %113, %66, %62
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #9
  br label %115

115:                                              ; preds = %114, %45
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #9
  call void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(128) %7) #9
  br label %116

116:                                              ; preds = %115, %41
  call void @llvm.lifetime.end.p0(i64 392, ptr %7) #9
  br label %117

117:                                              ; preds = %116, %37
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #9
  call void @llvm.lifetime.end.p0(i64 32, ptr %4) #9
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #9
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #9
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #9
  br label %119

118:                                              ; preds = %16
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #9
  ret i32 0

119:                                              ; preds = %117
  %120 = load ptr, ptr %5, align 8
  %121 = load i32, ptr %6, align 4
  %122 = insertvalue { ptr, i32 } poison, ptr %120, 0
  %123 = insertvalue { ptr, i32 } %122, i32 %121, 1
  resume { ptr, i32 } %123
}

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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #3

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEv(ptr noundef nonnull align 8 dereferenceable(16)) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) #5

declare i32 @__gxx_personality_v0(...)

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZStorSt13_Ios_OpenmodeS_(i32 noundef, i32 noundef) #6

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEEC1ERKNS_12basic_stringIcS2_S3_EESt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(128), ptr noundef nonnull align 8 dereferenceable(32), i32 noundef) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264)) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #7

; 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) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4NodeC2Ei(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) unnamed_addr #4 align 2

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) #8

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #4 align 2

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN8Solution20alternatingSplitListEP4Node(ptr dead_on_unwind noalias writable sret(%"class.std::vector.3") align 8, ptr noundef nonnull align 1 dereferenceable(1), ptr noundef) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIP4NodeSaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIP4NodeSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(128)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress 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 #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { "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 = { nobuiltin allocsize(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 #8 = { nobuiltin 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 #9 = { nounwind }
attributes #10 = { builtin allocsize(0) }
attributes #11 = { builtin 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 = !{!10, !10, i64 0}
!10 = !{!"vtable pointer", !8, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !14, i64 0}
!14 = !{!"any pointer", !7, i64 0}
!15 = !{!16, !14, i64 8}
!16 = !{!"_ZTS4Node", !6, i64 0, !14, i64 8}
!17 = distinct !{!17, !12}
!18 = distinct !{!18, !12}


; 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::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::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::__cxx11::basic_stringstream" = type { %"class.std::basic_iostream.base", %"class.std::__cxx11::basic_stringbuf", %"class.std::basic_ios" }
%"class.std::basic_iostream.base" = type { %"class.std::basic_istream.base", %"class.std::basic_ostream.base" }
%"class.std::basic_istream.base" = type { ptr, i64 }
%"class.std::basic_ostream.base" = type { ptr }
%"class.std::__cxx11::basic_stringbuf" = type { %"class.std::basic_streambuf", i32, %"class.std::__cxx11::basic_string" }
%"class.std::basic_streambuf" = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, %"class.std::locale" }
%class.Solution = type { i8 }
%"class.std::vector.3" = type { %"struct.std::_Vector_base.4" }
%"struct.std::_Vector_base.4" = type { %"struct.std::_Vector_base<Node *, std::allocator<Node *>>::_Vector_impl" }
%"struct.std::_Vector_base<Node *, std::allocator<Node *>>::_Vector_impl" = type { %"struct.std::_Vector_base<Node *, std::allocator<Node *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<Node *, std::allocator<Node *>>::_Vector_impl_data" = type { ptr, ptr, ptr }

@_ZSt3cin = external global %"class.std::basic_istream", align 8

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z9printListP4Node(ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #1 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.std::vector", align 8
  %3 = alloca %"class.std::__cxx11::basic_string", align 8
  %4 = alloca %"class.std::__cxx11::basic_stringstream", align 8
  %5 = alloca i32, align 4
  %6 = alloca %class.Solution, align 1
  %7 = alloca %"class.std::vector.3", align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #8
  %8 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %9 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEv(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin)
  %10 = load i32, ptr %1, align 4, !tbaa !5
  %11 = add nsw i32 %10, -1
  store i32 %11, ptr %1, align 4, !tbaa !5
  %.not27 = icmp eq i32 %10, 0
  br i1 %.not27, label %._crit_edge30, label %.lr.ph29

.lr.ph29:                                         ; preds = %0, %56
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %2) #8
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #8
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %3) #8
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #8
  %12 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %3)
          to label %13 unwind label %26

13:                                               ; preds = %.lr.ph29
  call void @llvm.lifetime.start.p0(i64 392, ptr nonnull %4) #8
  %14 = call noundef i32 @_ZStorSt13_Ios_OpenmodeS_(i32 noundef 16, i32 noundef 8)
  invoke void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEEC1ERKNS_12basic_stringIcS2_S3_EESt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(128) %4, ptr noundef nonnull align 8 dereferenceable(32) %3, i32 noundef %14)
          to label %15 unwind label %28

15:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #8
  br label %16

16:                                               ; preds = %25, %15
  %17 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %4, ptr noundef nonnull align 4 dereferenceable(4) %5)
          to label %18 unwind label %30

18:                                               ; preds = %16
  %19 = load ptr, ptr %17, align 8, !tbaa !9
  %20 = getelementptr i8, ptr %19, i64 -24
  %21 = load i64, ptr %20, align 8
  %22 = getelementptr inbounds i8, ptr %17, i64 %21
  %23 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %22)
          to label %24 unwind label %30

24:                                               ; preds = %18
  br i1 %23, label %25, label %32

25:                                               ; preds = %24
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %2, ptr noundef nonnull align 4 dereferenceable(4) %5)
          to label %16 unwind label %30, !llvm.loop !11

26:                                               ; preds = %.lr.ph29
  %27 = landingpad { ptr, i32 }
          cleanup
  br label %66

28:                                               ; preds = %13
  %29 = landingpad { ptr, i32 }
          cleanup
  br label %65

30:                                               ; preds = %25, %18, %16
  %31 = landingpad { ptr, i32 }
          cleanup
  br label %64

32:                                               ; preds = %24
  %33 = invoke noalias noundef nonnull dereferenceable(16) ptr @_Znwm(i64 noundef 16) #9
          to label %34 unwind label %39

34:                                               ; preds = %32
  %35 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef 0) #8
  %36 = load i32, ptr %35, align 4, !tbaa !5
  call void @_ZN4NodeC2Ei(ptr noundef nonnull align 8 dereferenceable(16) %33, i32 noundef %36)
  %37 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #8
  %38 = icmp ugt i64 %37, 1
  br i1 %38, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %42, %34
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %6) #8
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %7) #8
  invoke void @_ZN8Solution20alternatingSplitListEP4Node(ptr dead_on_unwind nonnull writable sret(%"class.std::vector.3") align 8 %7, ptr noundef nonnull align 1 dereferenceable(1) %6, ptr noundef nonnull %33)
          to label %50 unwind label %59

39:                                               ; preds = %32
  %40 = landingpad { ptr, i32 }
          cleanup
  br label %64

.lr.ph:                                           ; preds = %34, %42
  %indvars.iv = phi i64 [ %indvars.iv.next, %42 ], [ 1, %34 ]
  %.0825 = phi ptr [ %41, %42 ], [ %33, %34 ]
  %41 = invoke noalias noundef nonnull dereferenceable(16) ptr @_Znwm(i64 noundef 16) #9
          to label %42 unwind label %48

42:                                               ; preds = %.lr.ph
  %43 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %indvars.iv) #8
  %44 = load i32, ptr %43, align 4, !tbaa !5
  call void @_ZN4NodeC2Ei(ptr noundef nonnull align 8 dereferenceable(16) %41, i32 noundef %44)
  %45 = getelementptr inbounds i8, ptr %.0825, i64 8
  store ptr %41, ptr %45, align 8, !tbaa !13
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %46 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #8
  %47 = icmp ugt i64 %46, %indvars.iv.next
  br i1 %47, label %.lr.ph, label %._crit_edge, !llvm.loop !16

48:                                               ; preds = %.lr.ph
  %49 = landingpad { ptr, i32 }
          cleanup
  br label %64

50:                                               ; preds = %._crit_edge
  %51 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIP4NodeSaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef 0) #8
  %52 = load ptr, ptr %51, align 8, !tbaa !17
  invoke void @_Z9printListP4Node(ptr noundef %52)
          to label %53 unwind label %61

53:                                               ; preds = %50
  %54 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIP4NodeSaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef 1) #8
  %55 = load ptr, ptr %54, align 8, !tbaa !17
  invoke void @_Z9printListP4Node(ptr noundef %55)
          to label %56 unwind label %61

56:                                               ; preds = %53
  call void @_ZNSt6vectorIP4NodeSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #8
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %7) #8
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #8
  call void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(128) %4) #8
  call void @llvm.lifetime.end.p0(i64 392, ptr nonnull %4) #8
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #8
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #8
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #8
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #8
  %57 = load i32, ptr %1, align 4, !tbaa !5
  %58 = add nsw i32 %57, -1
  store i32 %58, ptr %1, align 4, !tbaa !5
  %.not = icmp eq i32 %57, 0
  br i1 %.not, label %._crit_edge30, label %.lr.ph29, !llvm.loop !18

59:                                               ; preds = %._crit_edge
  %60 = landingpad { ptr, i32 }
          cleanup
  br label %63

61:                                               ; preds = %53, %50
  %62 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt6vectorIP4NodeSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #8
  br label %63

63:                                               ; preds = %61, %59
  %.pn = phi { ptr, i32 } [ %62, %61 ], [ %60, %59 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %7) #8
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #8
  br label %64

64:                                               ; preds = %39, %63, %48, %30
  %.pn21 = phi { ptr, i32 } [ %31, %30 ], [ %40, %39 ], [ %49, %48 ], [ %.pn, %63 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #8
  call void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(128) %4) #8
  br label %65

65:                                               ; preds = %64, %28
  %.pn21.pn = phi { ptr, i32 } [ %.pn21, %64 ], [ %29, %28 ]
  call void @llvm.lifetime.end.p0(i64 392, ptr nonnull %4) #8
  br label %66

66:                                               ; preds = %65, %26
  %.pn21.pn.pn = phi { ptr, i32 } [ %.pn21.pn, %65 ], [ %27, %26 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #8
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #8
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #8
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #8
  resume { ptr, i32 } %.pn21.pn.pn

._crit_edge30:                                    ; preds = %56, %0
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #8
  ret i32 0
}

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

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 #3

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #5

declare i32 @__gxx_personality_v0(...)

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZStorSt13_Ios_OpenmodeS_(i32 noundef, i32 noundef) local_unnamed_addr #6

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEEC1ERKNS_12basic_stringIcS2_S3_EESt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(128), ptr noundef nonnull align 8 dereferenceable(32), i32 noundef) unnamed_addr #0 align 2

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 2

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) local_unnamed_addr #7

; 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 #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4NodeC2Ei(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #4 align 2

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN8Solution20alternatingSplitListEP4Node(ptr dead_on_unwind noalias writable sret(%"class.std::vector.3") align 8, ptr noundef nonnull align 1 dereferenceable(1), ptr noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIP4NodeSaIS1_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 @_ZNSt6vectorIP4NodeSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(128)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

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

!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 = !{!10, !10, i64 0}
!10 = !{!"vtable pointer", !8, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !15, i64 8}
!14 = !{!"_ZTS4Node", !6, i64 0, !15, i64 8}
!15 = !{!"any pointer", !7, i64 0}
!16 = distinct !{!16, !12}
!17 = !{!15, !15, i64 0}
!18 = distinct !{!18, !12}


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