; LLVM IR from AnneLivia/Competitive-Programming :: Data Structures/Tree/Binary Tree (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 }
%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [13 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [13 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [15 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [22 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [19 x i8], align 1
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str.5 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [24 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #4
  %5 = call noundef ptr @_Z11create_treev()
  store ptr %5, ptr %2, align 8, !tbaa !5
  %6 = load ptr, ptr %2, align 8, !tbaa !5
  %7 = call noundef i32 @_Z9insertingPP6Vertexi(ptr noundef %6, i32 noundef 2)
  %8 = load ptr, ptr %2, align 8, !tbaa !5
  %9 = call noundef i32 @_Z9insertingPP6Vertexi(ptr noundef %8, i32 noundef 4)
  %10 = load ptr, ptr %2, align 8, !tbaa !5
  %11 = call noundef i32 @_Z9insertingPP6Vertexi(ptr noundef %10, i32 noundef 3)
  %12 = load ptr, ptr %2, align 8, !tbaa !5
  %13 = call noundef i32 @_Z9insertingPP6Vertexi(ptr noundef %12, i32 noundef 1)
  %14 = load ptr, ptr %2, align 8, !tbaa !5
  %15 = call noundef i32 @_Z9insertingPP6Vertexi(ptr noundef %14, i32 noundef 2)
  %16 = load ptr, ptr %2, align 8, !tbaa !5
  %17 = call noundef i32 @_Z9insertingPP6Vertexi(ptr noundef %16, i32 noundef 9)
  %18 = load ptr, ptr %2, align 8, !tbaa !5
  %19 = call noundef i32 @_Z9insertingPP6Vertexi(ptr noundef %18, i32 noundef 13)
  %20 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  %21 = load ptr, ptr %2, align 8, !tbaa !5
  call void @_Z9pre_orderPP6Vertex(ptr noundef %21)
  %22 = load ptr, ptr %2, align 8, !tbaa !5
  call void @_Z11delete_nodePP6Vertexi(ptr noundef %22, i32 noundef 13)
  %23 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.1)
  %24 = load ptr, ptr %2, align 8, !tbaa !5
  call void @_Z8in_orderPP6Vertex(ptr noundef %24)
  %25 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.2)
  %26 = load ptr, ptr %2, align 8, !tbaa !5
  call void @_Z10post_orderPP6Vertex(ptr noundef %26)
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  %27 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.3)
  br label %28

28:                                               ; preds = %50, %0
  %29 = load ptr, ptr %2, align 8, !tbaa !5
  %30 = call noundef i32 @_Z7isEmptyPP6Vertex(ptr noundef %29)
  %31 = icmp ne i32 %30, 0
  %32 = xor i1 %31, true
  br i1 %32, label %33, label %51

33:                                               ; preds = %28
  %34 = load ptr, ptr %2, align 8, !tbaa !5
  call void @_Z10post_orderPP6Vertex(ptr noundef %34)
  %35 = load ptr, ptr %2, align 8, !tbaa !5
  %36 = call noundef i32 @_Z11nodeNumbersPP6Vertex(ptr noundef %35)
  store i32 %36, ptr %4, align 4, !tbaa !9
  %37 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.4)
  %38 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %39 = load ptr, ptr %2, align 8, !tbaa !5
  %40 = load i32, ptr %3, align 4, !tbaa !9
  call void @_Z11delete_nodePP6Vertexi(ptr noundef %39, i32 noundef %40)
  %41 = load ptr, ptr %2, align 8, !tbaa !5
  %42 = call noundef i32 @_Z11nodeNumbersPP6Vertex(ptr noundef %41)
  %43 = load i32, ptr %4, align 4, !tbaa !9
  %44 = icmp eq i32 %42, %43
  br i1 %44, label %45, label %50

45:                                               ; preds = %33
  %46 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.5)
  %47 = load i32, ptr %3, align 4, !tbaa !9
  %48 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %46, i32 noundef %47)
  %49 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %48, ptr noundef @.str.6)
  br label %50

50:                                               ; preds = %45, %33
  br label %28, !llvm.loop !11

51:                                               ; preds = %28
  %52 = load ptr, ptr %2, align 8, !tbaa !5
  call void @_Z11delete_treePP6Vertex(ptr noundef %52)
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #4
  ret i32 0
}

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

declare noundef ptr @_Z11create_treev() #2

declare noundef i32 @_Z9insertingPP6Vertexi(ptr noundef, i32 noundef) #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) #3

declare void @_Z9pre_orderPP6Vertex(ptr noundef) #2

declare void @_Z11delete_nodePP6Vertexi(ptr noundef, i32 noundef) #2

declare void @_Z8in_orderPP6Vertex(ptr noundef) #2

declare void @_Z10post_orderPP6Vertex(ptr noundef) #2

declare noundef i32 @_Z7isEmptyPP6Vertex(ptr noundef) #2

declare noundef i32 @_Z11nodeNumbersPP6Vertex(ptr noundef) #2

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

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

declare void @_Z11delete_treePP6Vertex(ptr noundef) #2

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

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { 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 #4 = { 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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; 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 }
%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [13 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [13 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [15 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [22 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [19 x i8], align 1
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str.5 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [24 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  %2 = tail call noundef ptr @_Z11create_treev()
  %3 = tail call noundef i32 @_Z9insertingPP6Vertexi(ptr noundef %2, i32 noundef 2)
  %4 = tail call noundef i32 @_Z9insertingPP6Vertexi(ptr noundef %2, i32 noundef 4)
  %5 = tail call noundef i32 @_Z9insertingPP6Vertexi(ptr noundef %2, i32 noundef 3)
  %6 = tail call noundef i32 @_Z9insertingPP6Vertexi(ptr noundef %2, i32 noundef 1)
  %7 = tail call noundef i32 @_Z9insertingPP6Vertexi(ptr noundef %2, i32 noundef 2)
  %8 = tail call noundef i32 @_Z9insertingPP6Vertexi(ptr noundef %2, i32 noundef 9)
  %9 = tail call noundef i32 @_Z9insertingPP6Vertexi(ptr noundef %2, i32 noundef 13)
  %10 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str)
  tail call void @_Z9pre_orderPP6Vertex(ptr noundef %2)
  tail call void @_Z11delete_nodePP6Vertexi(ptr noundef %2, i32 noundef 13)
  %11 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.1)
  tail call void @_Z8in_orderPP6Vertex(ptr noundef %2)
  %12 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.2)
  tail call void @_Z10post_orderPP6Vertex(ptr noundef %2)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #4
  %13 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.3)
  %14 = tail call noundef i32 @_Z7isEmptyPP6Vertex(ptr noundef %2)
  %.not17 = icmp eq i32 %14, 0
  br i1 %.not17, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %0, %26
  call void @_Z10post_orderPP6Vertex(ptr noundef %2)
  %15 = call noundef i32 @_Z11nodeNumbersPP6Vertex(ptr noundef %2)
  %16 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.4)
  %17 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %18 = load i32, ptr %1, align 4, !tbaa !5
  call void @_Z11delete_nodePP6Vertexi(ptr noundef %2, i32 noundef %18)
  %19 = call noundef i32 @_Z11nodeNumbersPP6Vertex(ptr noundef %2)
  %20 = icmp eq i32 %19, %15
  br i1 %20, label %21, label %26

21:                                               ; preds = %.lr.ph
  %22 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.5)
  %23 = load i32, ptr %1, align 4, !tbaa !5
  %24 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %22, i32 noundef %23)
  %25 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %24, ptr noundef nonnull @.str.6)
  br label %26

26:                                               ; preds = %21, %.lr.ph
  %27 = call noundef i32 @_Z7isEmptyPP6Vertex(ptr noundef %2)
  %.not = icmp eq i32 %27, 0
  br i1 %.not, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge:                                      ; preds = %26, %0
  call void @_Z11delete_treePP6Vertex(ptr noundef %2)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #4
  ret i32 0
}

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

declare noundef ptr @_Z11create_treev() local_unnamed_addr #2

declare noundef i32 @_Z9insertingPP6Vertexi(ptr noundef, i32 noundef) local_unnamed_addr #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 #3

declare void @_Z9pre_orderPP6Vertex(ptr noundef) local_unnamed_addr #2

declare void @_Z11delete_nodePP6Vertexi(ptr noundef, i32 noundef) local_unnamed_addr #2

declare void @_Z8in_orderPP6Vertex(ptr noundef) local_unnamed_addr #2

declare void @_Z10post_orderPP6Vertex(ptr noundef) local_unnamed_addr #2

declare noundef i32 @_Z7isEmptyPP6Vertex(ptr noundef) local_unnamed_addr #2

declare noundef i32 @_Z11nodeNumbersPP6Vertex(ptr noundef) local_unnamed_addr #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 #2

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

declare void @_Z11delete_treePP6Vertex(ptr noundef) local_unnamed_addr #2

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

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

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

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


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