; LLVM IR from chachaxw/data-structure-and-algorithm :: leetcode/binary_tree/binary_tree.ll (Z31postOrderTraversalDivideConquerP8TreeNode)

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

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.__gnu_cxx::__normal_iterator.0" = type { ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%struct.TreeNode = type { i32, i32, ptr, ptr }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

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

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE6insertIN9__gnu_cxx17__normal_iteratorIPiS1_EEvEES6_NS4_IPKiS1_EET_SA_(ptr noundef nonnull align 8 dereferenceable(24), ptr, ptr, ptr) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN9__gnu_cxx17__normal_iteratorIPKiSt6vectorIiSaIiEEEC2IPivEERKNS0_IT_S5_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; 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 void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z31postOrderTraversalDivideConquerP8TreeNode(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8 %0, ptr noundef %1) #2 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i1, align 1
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::vector", align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca %"class.std::vector", align 8
  %11 = alloca %"class.__gnu_cxx::__normal_iterator.0", align 8
  %12 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %13 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %14 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %15 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %16 = alloca %"class.__gnu_cxx::__normal_iterator.0", align 8
  %17 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %18 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %19 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %20 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  store ptr %0, ptr %3, align 8
  store ptr %1, ptr %4, align 8, !tbaa !5
  store i1 false, ptr %5, align 1
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = icmp eq ptr %21, null
  br i1 %22, label %23, label %24

23:                                               ; preds = %2
  store i1 true, ptr %5, align 1
  store i32 1, ptr %6, align 4
  br label %89

24:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 24, ptr %7) #3
  %25 = load ptr, ptr %4, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.TreeNode, ptr %25, i32 0, i32 2
  %27 = load ptr, ptr %26, align 8, !tbaa !9
  invoke void @_Z31postOrderTraversalDivideConquerP8TreeNode(ptr dead_on_unwind writable sret(%"class.std::vector") align 8 %7, ptr noundef %27)
          to label %28 unwind label %66

28:                                               ; preds = %24
  call void @llvm.lifetime.start.p0(i64 24, ptr %10) #3
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.TreeNode, ptr %29, i32 0, i32 3
  %31 = load ptr, ptr %30, align 8, !tbaa !12
  invoke void @_Z31postOrderTraversalDivideConquerP8TreeNode(ptr dead_on_unwind writable sret(%"class.std::vector") align 8 %10, ptr noundef %31)
          to label %32 unwind label %70

32:                                               ; preds = %28
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #3
  %33 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  %34 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %12, i32 0, i32 0
  store ptr %33, ptr %34, align 8
  call void @_ZN9__gnu_cxx17__normal_iteratorIPKiSt6vectorIiSaIiEEEC2IPivEERKNS0_IT_S5_EE(ptr noundef nonnull align 8 dereferenceable(8) %11, ptr noundef nonnull align 8 dereferenceable(8) %12) #3
  %35 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %7) #3
  %36 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %13, i32 0, i32 0
  store ptr %35, ptr %36, align 8
  %37 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %7) #3
  %38 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %14, i32 0, i32 0
  store ptr %37, ptr %38, align 8
  %39 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.0", ptr %11, i32 0, i32 0
  %40 = load ptr, ptr %39, align 8
  %41 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %13, i32 0, i32 0
  %42 = load ptr, ptr %41, align 8
  %43 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %14, i32 0, i32 0
  %44 = load ptr, ptr %43, align 8
  %45 = invoke ptr @_ZNSt6vectorIiSaIiEE6insertIN9__gnu_cxx17__normal_iteratorIPiS1_EEvEES6_NS4_IPKiS1_EET_SA_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr %40, ptr %42, ptr %44)
          to label %46 unwind label %74

46:                                               ; preds = %32
  %47 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %15, i32 0, i32 0
  store ptr %45, ptr %47, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %17) #3
  %48 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  %49 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %17, i32 0, i32 0
  store ptr %48, ptr %49, align 8
  call void @_ZN9__gnu_cxx17__normal_iteratorIPKiSt6vectorIiSaIiEEEC2IPivEERKNS0_IT_S5_EE(ptr noundef nonnull align 8 dereferenceable(8) %16, ptr noundef nonnull align 8 dereferenceable(8) %17) #3
  %50 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %10) #3
  %51 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %18, i32 0, i32 0
  store ptr %50, ptr %51, align 8
  %52 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %10) #3
  %53 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %19, i32 0, i32 0
  store ptr %52, ptr %53, align 8
  %54 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.0", ptr %16, i32 0, i32 0
  %55 = load ptr, ptr %54, align 8
  %56 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %18, i32 0, i32 0
  %57 = load ptr, ptr %56, align 8
  %58 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %19, i32 0, i32 0
  %59 = load ptr, ptr %58, align 8
  %60 = invoke ptr @_ZNSt6vectorIiSaIiEE6insertIN9__gnu_cxx17__normal_iteratorIPiS1_EEvEES6_NS4_IPKiS1_EET_SA_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr %55, ptr %57, ptr %59)
          to label %61 unwind label %78

61:                                               ; preds = %46
  %62 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %20, i32 0, i32 0
  store ptr %60, ptr %62, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #3
  %63 = load ptr, ptr %4, align 8, !tbaa !5
  %64 = getelementptr inbounds %struct.TreeNode, ptr %63, i32 0, i32 0
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 4 dereferenceable(4) %64)
          to label %65 unwind label %82

65:                                               ; preds = %61
  store i1 true, ptr %5, align 1
  store i32 1, ptr %6, align 4
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %10) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr %10) #3
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #3
  br label %89

66:                                               ; preds = %24
  %67 = landingpad { ptr, i32 }
          cleanup
  %68 = extractvalue { ptr, i32 } %67, 0
  store ptr %68, ptr %8, align 8
  %69 = extractvalue { ptr, i32 } %67, 1
  store i32 %69, ptr %9, align 4
  br label %88

70:                                               ; preds = %28
  %71 = landingpad { ptr, i32 }
          cleanup
  %72 = extractvalue { ptr, i32 } %71, 0
  store ptr %72, ptr %8, align 8
  %73 = extractvalue { ptr, i32 } %71, 1
  store i32 %73, ptr %9, align 4
  br label %87

74:                                               ; preds = %32
  %75 = landingpad { ptr, i32 }
          cleanup
  %76 = extractvalue { ptr, i32 } %75, 0
  store ptr %76, ptr %8, align 8
  %77 = extractvalue { ptr, i32 } %75, 1
  store i32 %77, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #3
  br label %86

78:                                               ; preds = %46
  %79 = landingpad { ptr, i32 }
          cleanup
  %80 = extractvalue { ptr, i32 } %79, 0
  store ptr %80, ptr %8, align 8
  %81 = extractvalue { ptr, i32 } %79, 1
  store i32 %81, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #3
  br label %86

82:                                               ; preds = %61
  %83 = landingpad { ptr, i32 }
          cleanup
  %84 = extractvalue { ptr, i32 } %83, 0
  store ptr %84, ptr %8, align 8
  %85 = extractvalue { ptr, i32 } %83, 1
  store i32 %85, ptr %9, align 4
  br label %86

86:                                               ; preds = %82, %78, %74
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %10) #3
  br label %87

87:                                               ; preds = %86, %70
  call void @llvm.lifetime.end.p0(i64 24, ptr %10) #3
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #3
  br label %88

88:                                               ; preds = %87, %66
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #3
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  br label %93

89:                                               ; preds = %65, %23
  %90 = load i1, ptr %5, align 1
  br i1 %90, label %92, label %91

91:                                               ; preds = %89
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  br label %92

92:                                               ; preds = %91, %89
  ret void

93:                                               ; preds = %88
  %94 = load ptr, ptr %8, align 8
  %95 = load i32, ptr %9, align 4
  %96 = insertvalue { ptr, i32 } poison, ptr %94, 0
  %97 = insertvalue { ptr, i32 } %96, i32 %95, 1
  resume { ptr, i32 } %97
}

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { nounwind }

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 8}
!10 = !{!"_ZTS8TreeNode", !11, i64 0, !11, i64 4, !6, i64 8, !6, i64 16}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, i64 16}


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

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.__gnu_cxx::__normal_iterator.0" = type { ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

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

declare i32 @__gxx_personality_v0(...)

; 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 #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE6insertIN9__gnu_cxx17__normal_iteratorIPiS1_EEvEES6_NS4_IPKiS1_EET_SA_(ptr noundef nonnull align 8 dereferenceable(24), ptr, ptr, ptr) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN9__gnu_cxx17__normal_iteratorIPKiSt6vectorIiSaIiEEEC2IPivEERKNS0_IT_S5_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; 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 void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z31postOrderTraversalDivideConquerP8TreeNode(ptr dead_on_unwind noalias nonnull writable sret(%"class.std::vector") align 8 %0, ptr noundef %1) local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca %"class.std::vector", align 8
  %5 = alloca %"class.__gnu_cxx::__normal_iterator.0", align 8
  %6 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %7 = alloca %"class.__gnu_cxx::__normal_iterator.0", align 8
  %8 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  tail call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  %9 = icmp eq ptr %1, null
  br i1 %9, label %43, label %10

10:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #3
  %11 = getelementptr inbounds i8, ptr %1, i64 8
  %12 = load ptr, ptr %11, align 8, !tbaa !5
  invoke void @_Z31postOrderTraversalDivideConquerP8TreeNode(ptr dead_on_unwind nonnull writable sret(%"class.std::vector") align 8 %3, ptr noundef %12)
          to label %13 unwind label %30

13:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #3
  %14 = getelementptr inbounds i8, ptr %1, i64 16
  %15 = load ptr, ptr %14, align 8, !tbaa !11
  invoke void @_Z31postOrderTraversalDivideConquerP8TreeNode(ptr dead_on_unwind nonnull writable sret(%"class.std::vector") align 8 %4, ptr noundef %15)
          to label %16 unwind label %32

16:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #3
  %17 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  store ptr %17, ptr %6, align 8
  call void @_ZN9__gnu_cxx17__normal_iteratorIPKiSt6vectorIiSaIiEEEC2IPivEERKNS0_IT_S5_EE(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %6) #3
  %18 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #3
  %19 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #3
  %20 = load ptr, ptr %5, align 8
  %21 = invoke ptr @_ZNSt6vectorIiSaIiEE6insertIN9__gnu_cxx17__normal_iteratorIPiS1_EEvEES6_NS4_IPKiS1_EET_SA_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr %20, ptr %18, ptr %19)
          to label %22 unwind label %34

22:                                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #3
  %23 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  store ptr %23, ptr %8, align 8
  call void @_ZN9__gnu_cxx17__normal_iteratorIPKiSt6vectorIiSaIiEEEC2IPivEERKNS0_IT_S5_EE(ptr noundef nonnull align 8 dereferenceable(8) %7, ptr noundef nonnull align 8 dereferenceable(8) %8) #3
  %24 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #3
  %25 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #3
  %26 = load ptr, ptr %7, align 8
  %27 = invoke ptr @_ZNSt6vectorIiSaIiEE6insertIN9__gnu_cxx17__normal_iteratorIPiS1_EEvEES6_NS4_IPKiS1_EET_SA_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr %26, ptr %24, ptr %25)
          to label %28 unwind label %36

28:                                               ; preds = %22
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #3
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 4 dereferenceable(4) %1)
          to label %29 unwind label %38

29:                                               ; preds = %28
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #3
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #3
  br label %43

30:                                               ; preds = %10
  %31 = landingpad { ptr, i32 }
          cleanup
  br label %42

32:                                               ; preds = %13
  %33 = landingpad { ptr, i32 }
          cleanup
  br label %41

34:                                               ; preds = %16
  %35 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #3
  br label %40

36:                                               ; preds = %22
  %37 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #3
  br label %40

38:                                               ; preds = %28
  %39 = landingpad { ptr, i32 }
          cleanup
  br label %40

40:                                               ; preds = %38, %36, %34
  %.pn = phi { ptr, i32 } [ %39, %38 ], [ %37, %36 ], [ %35, %34 ]
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #3
  br label %41

41:                                               ; preds = %40, %32
  %.pn.pn = phi { ptr, i32 } [ %.pn, %40 ], [ %33, %32 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #3
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #3
  br label %42

42:                                               ; preds = %41, %30
  %.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn, %41 ], [ %31, %30 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #3
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  resume { ptr, i32 } %.pn.pn.pn

43:                                               ; preds = %29, %2
  ret void
}

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { 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, !7, i64 4, !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}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass