; LLVM IR from pezy/LeetCode :: 102. Binary Tree Zigzag Level Order Traversal (main)

; 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_ostream" = type { ptr, %"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 }
%struct.TreeNode = type { i32, ptr, ptr }
%class.Solution = type { i8 }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%"class.__gnu_cxx::__normal_iterator.5" = type { ptr }

@_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 %struct.TreeNode, align 8
  %3 = alloca %struct.TreeNode, align 8
  %4 = alloca %struct.TreeNode, align 8
  %5 = alloca %struct.TreeNode, align 8
  %6 = alloca %struct.TreeNode, align 8
  %7 = alloca %class.Solution, align 1
  %8 = alloca ptr, align 8
  %9 = alloca %"class.std::vector", align 8
  %10 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %11 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %12 = alloca i32, align 4
  %13 = alloca ptr, align 8
  %14 = alloca ptr, align 8
  %15 = alloca %"class.__gnu_cxx::__normal_iterator.5", align 8
  %16 = alloca %"class.__gnu_cxx::__normal_iterator.5", align 8
  %17 = alloca i32, align 4
  %18 = alloca ptr, align 8
  %19 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 24, ptr %2) #7
  call void @_ZN8TreeNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(24) %2, i32 noundef 3)
  call void @llvm.lifetime.start.p0(i64 24, ptr %3) #7
  call void @_ZN8TreeNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(24) %3, i32 noundef 9)
  call void @llvm.lifetime.start.p0(i64 24, ptr %4) #7
  call void @_ZN8TreeNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(24) %4, i32 noundef 20)
  call void @llvm.lifetime.start.p0(i64 24, ptr %5) #7
  call void @_ZN8TreeNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(24) %5, i32 noundef 15)
  call void @llvm.lifetime.start.p0(i64 24, ptr %6) #7
  call void @_ZN8TreeNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(24) %6, i32 noundef 7)
  %20 = getelementptr inbounds %struct.TreeNode, ptr %2, i32 0, i32 1
  store ptr %3, ptr %20, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.TreeNode, ptr %2, i32 0, i32 2
  store ptr %4, ptr %21, align 8, !tbaa !11
  %22 = getelementptr inbounds %struct.TreeNode, ptr %3, i32 0, i32 1
  store ptr %5, ptr %22, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.TreeNode, ptr %4, i32 0, i32 2
  store ptr %6, ptr %23, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 1, ptr %7) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #7
  call void @llvm.lifetime.start.p0(i64 24, ptr %9) #7
  call void @_ZN8Solution16zigzagLevelOrderEP8TreeNode(ptr dead_on_unwind writable sret(%"class.std::vector") align 8 %9, ptr noundef nonnull align 1 dereferenceable(1) %7, ptr noundef %2)
  store ptr %9, ptr %8, align 8, !tbaa !12
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #7
  %24 = load ptr, ptr %8, align 8, !tbaa !12
  %25 = call ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %24) #7
  %26 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %10, i32 0, i32 0
  store ptr %25, ptr %26, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #7
  %27 = load ptr, ptr %8, align 8, !tbaa !12
  %28 = call ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %27) #7
  %29 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  store ptr %28, ptr %29, align 8
  br label %30

30:                                               ; preds = %62, %0
  %31 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt6vectorIiSaIiEES1_IS3_SaIS3_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %10, ptr noundef nonnull align 8 dereferenceable(8) %11) #7
  br i1 %31, label %33, label %32

32:                                               ; preds = %30
  store i32 2, ptr %12, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #7
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %9) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %9) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #7
  br label %69

33:                                               ; preds = %30
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #7
  %34 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt6vectorIiSaIiEES1_IS3_SaIS3_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %10) #7
  store ptr %34, ptr %13, align 8, !tbaa !12
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #7
  %35 = load ptr, ptr %13, align 8, !tbaa !12
  store ptr %35, ptr %14, align 8, !tbaa !12
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #7
  %36 = load ptr, ptr %14, align 8, !tbaa !12
  %37 = call ptr @_ZNKSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %36) #7
  %38 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.5", ptr %15, i32 0, i32 0
  store ptr %37, ptr %38, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #7
  %39 = load ptr, ptr %14, align 8, !tbaa !12
  %40 = call ptr @_ZNKSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %39) #7
  %41 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.5", ptr %16, i32 0, i32 0
  store ptr %40, ptr %41, align 8
  br label %42

42:                                               ; preds = %53, %33
  %43 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPKiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESB_(ptr noundef nonnull align 8 dereferenceable(8) %15, ptr noundef nonnull align 8 dereferenceable(8) %16) #7
  br i1 %43, label %45, label %44

44:                                               ; preds = %42
  store i32 4, ptr %12, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #7
  br label %59

45:                                               ; preds = %42
  call void @llvm.lifetime.start.p0(i64 4, ptr %17) #7
  %46 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %15) #7
  %47 = load i32, ptr %46, align 4, !tbaa !13
  store i32 %47, ptr %17, align 4, !tbaa !13
  %48 = load i32, ptr %17, align 4, !tbaa !13
  %49 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %48)
          to label %50 unwind label %55

50:                                               ; preds = %45
  %51 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %49, ptr noundef @.str)
          to label %52 unwind label %55

52:                                               ; preds = %50
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #7
  br label %53

53:                                               ; preds = %52
  %54 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPKiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %15) #7
  br label %42

55:                                               ; preds = %50, %45
  %56 = landingpad { ptr, i32 }
          cleanup
  %57 = extractvalue { ptr, i32 } %56, 0
  store ptr %57, ptr %18, align 8
  %58 = extractvalue { ptr, i32 } %56, 1
  store i32 %58, ptr %19, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #7
  br label %68

59:                                               ; preds = %44
  %60 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %61 unwind label %64

61:                                               ; preds = %59
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #7
  br label %62

62:                                               ; preds = %61
  %63 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt6vectorIiSaIiEES1_IS3_SaIS3_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %10) #7
  br label %30

64:                                               ; preds = %59
  %65 = landingpad { ptr, i32 }
          cleanup
  %66 = extractvalue { ptr, i32 } %65, 0
  store ptr %66, ptr %18, align 8
  %67 = extractvalue { ptr, i32 } %65, 1
  store i32 %67, ptr %19, align 4
  br label %68

68:                                               ; preds = %64, %55
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #7
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %9) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %9) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr %7) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %4) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %2) #7
  br label %71

69:                                               ; preds = %32
  call void @llvm.lifetime.end.p0(i64 1, ptr %7) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %4) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %2) #7
  %70 = load i32, ptr %1, align 4
  ret i32 %70

71:                                               ; preds = %68
  %72 = load ptr, ptr %18, align 8
  %73 = load i32, ptr %19, align 4
  %74 = insertvalue { ptr, i32 } poison, ptr %72, 0
  %75 = insertvalue { ptr, i32 } %74, i32 %73, 1
  resume { ptr, i32 } %75
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN8TreeNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(24), i32 noundef) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN8Solution16zigzagLevelOrderEP8TreeNode(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8, ptr noundef nonnull align 1 dereferenceable(1), ptr noundef) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPSt6vectorIiSaIiEES1_IS3_SaIS3_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt6vectorIiSaIiEES1_IS3_SaIS3_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPKiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESB_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 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

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #6

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPKiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #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 nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt6vectorIiSaIiEES1_IS3_SaIS3_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 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 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { 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 = { 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 #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 = { "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, !10, i64 8}
!6 = !{!"_ZTS8TreeNode", !7, i64 0, !10, i64 8, !10, i64 16}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 16}
!12 = !{!10, !10, i64 0}
!13 = !{!7, !7, 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::basic_ostream" = type { ptr, %"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 }
%struct.TreeNode = type { i32, ptr, ptr }
%class.Solution = type { i8 }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%"class.__gnu_cxx::__normal_iterator.5" = type { ptr }

@_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 %struct.TreeNode, align 8
  %2 = alloca %struct.TreeNode, align 8
  %3 = alloca %struct.TreeNode, align 8
  %4 = alloca %struct.TreeNode, align 8
  %5 = alloca %struct.TreeNode, align 8
  %6 = alloca %class.Solution, align 1
  %7 = alloca %"class.std::vector", align 8
  %8 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %9 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %10 = alloca %"class.__gnu_cxx::__normal_iterator.5", align 8
  %11 = alloca %"class.__gnu_cxx::__normal_iterator.5", align 8
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %1) #7
  call void @_ZN8TreeNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(24) %1, i32 noundef 3)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %2) #7
  call void @_ZN8TreeNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(24) %2, i32 noundef 9)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #7
  call void @_ZN8TreeNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(24) %3, i32 noundef 20)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #7
  call void @_ZN8TreeNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(24) %4, i32 noundef 15)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %5) #7
  call void @_ZN8TreeNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(24) %5, i32 noundef 7)
  %12 = getelementptr inbounds i8, ptr %1, i64 8
  store ptr %2, ptr %12, align 8, !tbaa !5
  %13 = getelementptr inbounds i8, ptr %1, i64 16
  store ptr %3, ptr %13, align 8, !tbaa !11
  %14 = getelementptr inbounds i8, ptr %2, i64 8
  store ptr %4, ptr %14, align 8, !tbaa !5
  %15 = getelementptr inbounds i8, ptr %3, i64 16
  store ptr %5, ptr %15, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %6) #7
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %7) #7
  call void @_ZN8Solution16zigzagLevelOrderEP8TreeNode(ptr dead_on_unwind nonnull writable sret(%"class.std::vector") align 8 %7, ptr noundef nonnull align 1 dereferenceable(1) %6, ptr noundef nonnull %1)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #7
  %16 = call ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %7) #7
  store ptr %16, ptr %8, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %9) #7
  %17 = call ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %7) #7
  store ptr %17, ptr %9, align 8
  %18 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt6vectorIiSaIiEES1_IS3_SaIS3_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %8, ptr noundef nonnull align 8 dereferenceable(8) %9) #7
  br i1 %18, label %.lr.ph11, label %._crit_edge12

._crit_edge12:                                    ; preds = %34, %0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #7
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %7) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %1) #7
  ret i32 0

.lr.ph11:                                         ; preds = %0, %34
  %19 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt6vectorIiSaIiEES1_IS3_SaIS3_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %8) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %10) #7
  %20 = call ptr @_ZNKSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %19) #7
  store ptr %20, ptr %10, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %11) #7
  %21 = call ptr @_ZNKSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %19) #7
  store ptr %21, ptr %11, align 8
  %22 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPKiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESB_(ptr noundef nonnull align 8 dereferenceable(8) %10, ptr noundef nonnull align 8 dereferenceable(8) %11) #7
  br i1 %22, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %29, %.lr.ph11
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %11) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #7
  %23 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %34 unwind label %37

.lr.ph:                                           ; preds = %.lr.ph11, %29
  %24 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %10) #7
  %25 = load i32, ptr %24, align 4, !tbaa !12
  %26 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %25)
          to label %27 unwind label %32

27:                                               ; preds = %.lr.ph
  %28 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %26, ptr noundef nonnull @.str)
          to label %29 unwind label %32

29:                                               ; preds = %27
  %30 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPKiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %10) #7
  %31 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPKiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESB_(ptr noundef nonnull align 8 dereferenceable(8) %10, ptr noundef nonnull align 8 dereferenceable(8) %11) #7
  br i1 %31, label %.lr.ph, label %._crit_edge

32:                                               ; preds = %27, %.lr.ph
  %33 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %11) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #7
  br label %39

34:                                               ; preds = %._crit_edge
  %35 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt6vectorIiSaIiEES1_IS3_SaIS3_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %8) #7
  %36 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPSt6vectorIiSaIiEES1_IS3_SaIS3_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %8, ptr noundef nonnull align 8 dereferenceable(8) %9) #7
  br i1 %36, label %.lr.ph11, label %._crit_edge12

37:                                               ; preds = %._crit_edge
  %38 = landingpad { ptr, i32 }
          cleanup
  br label %39

39:                                               ; preds = %37, %32
  %.pn = phi { ptr, i32 } [ %33, %32 ], [ %38, %37 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #7
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %7) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %1) #7
  resume { ptr, i32 } %.pn
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN8TreeNodeC2Ei(ptr noundef nonnull align 8 dereferenceable(24), i32 noundef) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN8Solution16zigzagLevelOrderEP8TreeNode(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8, ptr noundef nonnull align 1 dereferenceable(1), ptr noundef) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPSt6vectorIiSaIiEES1_IS3_SaIS3_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPSt6vectorIiSaIiEES1_IS3_SaIS3_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPKiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESB_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 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

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #6

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPKiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #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 nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPSt6vectorIiSaIiEES1_IS3_SaIS3_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 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 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { 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 = { 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 #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 = { "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, !10, i64 8}
!6 = !{!"_ZTS8TreeNode", !7, i64 0, !10, i64 8, !10, i64 16}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 16}
!12 = !{!7, !7, i64 0}


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