; LLVM IR from Aryansh-S/USACO :: USACO/2022/Dec/Silver/barn_tree.ll (Z15dfs_make_ordersii)

; 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<long long, std::allocator<long long>>::_Vector_impl" }
%"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl" = type { %"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl_data" }
%"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::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.std::vector.5" = type { %"struct.std::_Vector_base.6" }
%"struct.std::_Vector_base.6" = type { %"struct.std::_Vector_base<std::tuple<int, int, long long>, std::allocator<std::tuple<int, int, long long>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::tuple<int, int, long long>, std::allocator<std::tuple<int, int, long long>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::tuple<int, int, long long>, std::allocator<std::tuple<int, int, long long>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::tuple<int, int, long long>, std::allocator<std::tuple<int, int, long long>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@subtree_tot = external dso_local global %"class.std::vector", align 8
@adj = external dso_local global %"class.std::vector.0", align 8
@orders = external dso_local global %"class.std::vector.5", align 8

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #0 align 2

; 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 noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #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: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #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 noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z15dfs_make_ordersii(i32 noundef %0, i32 noundef %1) #3 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %7 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %8 = alloca i32, align 4
  %9 = alloca ptr, 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 i64, align 8
  store i32 %0, ptr %3, align 4, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  %14 = load i32, ptr %3, align 4, !tbaa !5
  %15 = sext i32 %14 to i64
  %16 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @adj, i64 noundef %15) #4
  store ptr %16, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  %17 = load ptr, ptr %5, align 8, !tbaa !9
  %18 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %17) #4
  %19 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %6, i32 0, i32 0
  store ptr %18, ptr %19, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  %20 = load ptr, ptr %5, align 8, !tbaa !9
  %21 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %20) #4
  %22 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %7, i32 0, i32 0
  store ptr %21, ptr %22, align 8
  br label %23

23:                                               ; preds = %54, %2
  %24 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7) #4
  br i1 %24, label %26, label %25

25:                                               ; preds = %23
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  br label %56

26:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  %27 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #4
  %28 = load i32, ptr %27, align 4, !tbaa !5
  store i32 %28, ptr %8, align 4, !tbaa !5
  %29 = load i32, ptr %8, align 4, !tbaa !5
  %30 = load i32, ptr %4, align 4, !tbaa !5
  %31 = icmp ne i32 %29, %30
  br i1 %31, label %32, label %53

32:                                               ; preds = %26
  %33 = load i32, ptr %8, align 4, !tbaa !5
  %34 = sext i32 %33 to i64
  %35 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @subtree_tot, i64 noundef %34) #4
  %36 = load i64, ptr %35, align 8, !tbaa !11
  %37 = icmp sge i64 %36, 0
  br i1 %37, label %38, label %41

38:                                               ; preds = %32
  %39 = load i32, ptr %8, align 4, !tbaa !5
  %40 = load i32, ptr %3, align 4, !tbaa !5
  call void @_Z15dfs_make_ordersii(i32 noundef %39, i32 noundef %40)
  br label %41

41:                                               ; preds = %38, %32
  %42 = load i32, ptr %8, align 4, !tbaa !5
  %43 = sext i32 %42 to i64
  %44 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @subtree_tot, i64 noundef %43) #4
  %45 = load i64, ptr %44, align 8, !tbaa !11
  %46 = icmp sgt i64 %45, 0
  br i1 %46, label %47, label %52

47:                                               ; preds = %41
  %48 = load i32, ptr %8, align 4, !tbaa !5
  %49 = sext i32 %48 to i64
  %50 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @subtree_tot, i64 noundef %49) #4
  %51 = call noundef nonnull align 1 ptr @_ZNSt6vectorISt5tupleIJiixEESaIS1_EE12emplace_backIJRiS5_RxEEERS1_DpOT_(ptr noundef nonnull align 8 dereferenceable(24) @orders, ptr noundef nonnull align 4 dereferenceable(4) %8, ptr noundef nonnull align 4 dereferenceable(4) %3, ptr noundef nonnull align 8 dereferenceable(8) %50)
  br label %52

52:                                               ; preds = %47, %41
  br label %53

53:                                               ; preds = %52, %26
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  br label %54

54:                                               ; preds = %53
  %55 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #4
  br label %23

56:                                               ; preds = %25
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #4
  %57 = load i32, ptr %3, align 4, !tbaa !5
  %58 = sext i32 %57 to i64
  %59 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @adj, i64 noundef %58) #4
  store ptr %59, ptr %9, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #4
  %60 = load ptr, ptr %9, align 8, !tbaa !9
  %61 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %60) #4
  %62 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %10, i32 0, i32 0
  store ptr %61, ptr %62, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #4
  %63 = load ptr, ptr %9, align 8, !tbaa !9
  %64 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %63) #4
  %65 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  store ptr %64, ptr %65, align 8
  br label %66

66:                                               ; preds = %91, %56
  %67 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %10, ptr noundef nonnull align 8 dereferenceable(8) %11) #4
  br i1 %67, label %69, label %68

68:                                               ; preds = %66
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  br label %93

69:                                               ; preds = %66
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #4
  %70 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %10) #4
  %71 = load i32, ptr %70, align 4, !tbaa !5
  store i32 %71, ptr %12, align 4, !tbaa !5
  %72 = load i32, ptr %12, align 4, !tbaa !5
  %73 = load i32, ptr %4, align 4, !tbaa !5
  %74 = icmp ne i32 %72, %73
  br i1 %74, label %75, label %90

75:                                               ; preds = %69
  %76 = load i32, ptr %12, align 4, !tbaa !5
  %77 = sext i32 %76 to i64
  %78 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @subtree_tot, i64 noundef %77) #4
  %79 = load i64, ptr %78, align 8, !tbaa !11
  %80 = icmp slt i64 %79, 0
  br i1 %80, label %81, label %90

81:                                               ; preds = %75
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #4
  %82 = load i32, ptr %12, align 4, !tbaa !5
  %83 = sext i32 %82 to i64
  %84 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @subtree_tot, i64 noundef %83) #4
  %85 = load i64, ptr %84, align 8, !tbaa !11
  %86 = sub nsw i64 0, %85
  store i64 %86, ptr %13, align 8, !tbaa !11
  %87 = call noundef nonnull align 1 ptr @_ZNSt6vectorISt5tupleIJiixEESaIS1_EE12emplace_backIJRiS5_xEEERS1_DpOT_(ptr noundef nonnull align 8 dereferenceable(24) @orders, ptr noundef nonnull align 4 dereferenceable(4) %3, ptr noundef nonnull align 4 dereferenceable(4) %12, ptr noundef nonnull align 8 dereferenceable(8) %13)
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #4
  %88 = load i32, ptr %12, align 4, !tbaa !5
  %89 = load i32, ptr %3, align 4, !tbaa !5
  call void @_Z15dfs_make_ordersii(i32 noundef %88, i32 noundef %89)
  br label %90

90:                                               ; preds = %81, %75, %69
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #4
  br label %91

91:                                               ; preds = %90
  %92 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %10) #4
  br label %66

93:                                               ; preds = %68
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 1 ptr @_ZNSt6vectorISt5tupleIJiixEESaIS1_EE12emplace_backIJRiS5_RxEEERS1_DpOT_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 1 ptr @_ZNSt6vectorISt5tupleIJiixEESaIS1_EE12emplace_backIJRiS5_xEEERS1_DpOT_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

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 = { 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 #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 = { 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 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long long", !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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl" }
%"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl" = type { %"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl_data" }
%"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::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.std::vector.5" = type { %"struct.std::_Vector_base.6" }
%"struct.std::_Vector_base.6" = type { %"struct.std::_Vector_base<std::tuple<int, int, long long>, std::allocator<std::tuple<int, int, long long>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::tuple<int, int, long long>, std::allocator<std::tuple<int, int, long long>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::tuple<int, int, long long>, std::allocator<std::tuple<int, int, long long>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::tuple<int, int, long long>, std::allocator<std::tuple<int, int, long long>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@subtree_tot = external dso_local global %"class.std::vector", align 8
@adj = external dso_local global %"class.std::vector.0", align 8
@orders = external dso_local global %"class.std::vector.5", align 8

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_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 nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) 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 noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z15dfs_make_ordersii(i32 noundef %0, i32 noundef %1) local_unnamed_addr #3 {
  %3 = alloca i32, align 4
  %4 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %5 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %6 = alloca i32, align 4
  %7 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %8 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %9 = alloca i32, align 4
  %10 = alloca i64, align 8
  store i32 %0, ptr %3, align 4, !tbaa !5
  %11 = sext i32 %0 to i64
  %12 = tail call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @adj, i64 noundef %11) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  %13 = tail call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %12) #4
  store ptr %13, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #4
  %14 = tail call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %12) #4
  store ptr %14, ptr %5, align 8
  %15 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %5) #4
  br i1 %15, label %.lr.ph, label %._crit_edge

._crit_edge.loopexit:                             ; preds = %41
  %.pre = load i32, ptr %3, align 4, !tbaa !5
  %.pre10 = sext i32 %.pre to i64
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %2
  %.pre-phi = phi i64 [ %.pre10, %._crit_edge.loopexit ], [ %11, %2 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  %16 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @adj, i64 noundef %.pre-phi) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #4
  %17 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %16) #4
  store ptr %17, ptr %7, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #4
  %18 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %16) #4
  store ptr %18, ptr %8, align 8
  %19 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %7, ptr noundef nonnull align 8 dereferenceable(8) %8) #4
  br i1 %19, label %.lr.ph8, label %._crit_edge9

.lr.ph:                                           ; preds = %2, %41
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #4
  %20 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #4
  %21 = load i32, ptr %20, align 4, !tbaa !5
  store i32 %21, ptr %6, align 4, !tbaa !5
  %.not6 = icmp eq i32 %21, %1
  br i1 %.not6, label %41, label %22

22:                                               ; preds = %.lr.ph
  %23 = sext i32 %21 to i64
  %24 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @subtree_tot, i64 noundef %23) #4
  %25 = load i64, ptr %24, align 8, !tbaa !9
  %26 = icmp sgt i64 %25, -1
  br i1 %26, label %27, label %30

27:                                               ; preds = %22
  %28 = load i32, ptr %6, align 4, !tbaa !5
  %29 = load i32, ptr %3, align 4, !tbaa !5
  call void @_Z15dfs_make_ordersii(i32 noundef %28, i32 noundef %29)
  br label %30

30:                                               ; preds = %27, %22
  %31 = load i32, ptr %6, align 4, !tbaa !5
  %32 = sext i32 %31 to i64
  %33 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @subtree_tot, i64 noundef %32) #4
  %34 = load i64, ptr %33, align 8, !tbaa !9
  %35 = icmp sgt i64 %34, 0
  br i1 %35, label %36, label %41

36:                                               ; preds = %30
  %37 = load i32, ptr %6, align 4, !tbaa !5
  %38 = sext i32 %37 to i64
  %39 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @subtree_tot, i64 noundef %38) #4
  %40 = call noundef nonnull align 1 ptr @_ZNSt6vectorISt5tupleIJiixEESaIS1_EE12emplace_backIJRiS5_RxEEERS1_DpOT_(ptr noundef nonnull align 8 dereferenceable(24) @orders, ptr noundef nonnull align 4 dereferenceable(4) %6, ptr noundef nonnull align 4 dereferenceable(4) %3, ptr noundef nonnull align 8 dereferenceable(8) %39)
  br label %41

41:                                               ; preds = %30, %36, %.lr.ph
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #4
  %42 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #4
  %43 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %5) #4
  br i1 %43, label %.lr.ph, label %._crit_edge.loopexit

._crit_edge9:                                     ; preds = %60, %._crit_edge
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #4
  ret void

.lr.ph8:                                          ; preds = %._crit_edge, %60
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %9) #4
  %44 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %7) #4
  %45 = load i32, ptr %44, align 4, !tbaa !5
  store i32 %45, ptr %9, align 4, !tbaa !5
  %.not = icmp eq i32 %45, %1
  br i1 %.not, label %60, label %46

46:                                               ; preds = %.lr.ph8
  %47 = sext i32 %45 to i64
  %48 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @subtree_tot, i64 noundef %47) #4
  %49 = load i64, ptr %48, align 8, !tbaa !9
  %50 = icmp slt i64 %49, 0
  br i1 %50, label %51, label %60

51:                                               ; preds = %46
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %10) #4
  %52 = load i32, ptr %9, align 4, !tbaa !5
  %53 = sext i32 %52 to i64
  %54 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @subtree_tot, i64 noundef %53) #4
  %55 = load i64, ptr %54, align 8, !tbaa !9
  %56 = sub nsw i64 0, %55
  store i64 %56, ptr %10, align 8, !tbaa !9
  %57 = call noundef nonnull align 1 ptr @_ZNSt6vectorISt5tupleIJiixEESaIS1_EE12emplace_backIJRiS5_xEEERS1_DpOT_(ptr noundef nonnull align 8 dereferenceable(24) @orders, ptr noundef nonnull align 4 dereferenceable(4) %3, ptr noundef nonnull align 4 dereferenceable(4) %9, ptr noundef nonnull align 8 dereferenceable(8) %10)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #4
  %58 = load i32, ptr %9, align 4, !tbaa !5
  %59 = load i32, ptr %3, align 4, !tbaa !5
  call void @_Z15dfs_make_ordersii(i32 noundef %58, i32 noundef %59)
  br label %60

60:                                               ; preds = %51, %46, %.lr.ph8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %9) #4
  %61 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %7) #4
  %62 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %7, ptr noundef nonnull align 8 dereferenceable(8) %8) #4
  br i1 %62, label %.lr.ph8, label %._crit_edge9
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 1 ptr @_ZNSt6vectorISt5tupleIJiixEESaIS1_EE12emplace_backIJRiS5_RxEEERS1_DpOT_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 1 ptr @_ZNSt6vectorISt5tupleIJiixEESaIS1_EE12emplace_backIJRiS5_xEEERS1_DpOT_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

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 = { 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 #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 = { 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 = !{!"long long", !7, i64 0}


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