; LLVM IR from JanaSabuj/cppdump :: Kahn.ll (Z4kahnx)

; 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::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"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::queue" = type { %"class.std::deque" }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<long long, std::allocator<long long>>::_Deque_impl" }
%"struct.std::_Deque_base<long long, std::allocator<long long>>::_Deque_impl" = type { %"struct.std::_Deque_base<long long, std::allocator<long long>>::_Deque_impl_data" }
%"struct.std::_Deque_base<long long, std::allocator<long long>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator", %"struct.std::_Deque_iterator" }
%"struct.std::_Deque_iterator" = type { ptr, ptr, ptr, ptr }
%"class.__gnu_cxx::__normal_iterator.6" = type { ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@adj = external dso_local global %"class.std::vector.0", align 8
@in_degree = external dso_local global %"class.std::vector", align 8
@.str.3 = external hidden unnamed_addr constant [10 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z7print1dRKSt6vectorIxSaIxEE(ptr noundef nonnull align 8 dereferenceable(24)) #0

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

; 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) #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 uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #0 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)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIxSaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIxSaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPxSt6vectorIxSaIxEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(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(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPxSt6vectorIxSaIxEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPxSt6vectorIxSaIxEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIxSaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z4kahnx(i64 noundef %0) #0 personality ptr @__gxx_personality_v0 {
  %2 = alloca i64, align 8
  %3 = alloca %"class.std::queue", align 8
  %4 = alloca i64, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::vector", align 8
  %8 = alloca i64, align 8
  %9 = alloca ptr, align 8
  %10 = alloca %"class.__gnu_cxx::__normal_iterator.6", align 8
  %11 = alloca %"class.__gnu_cxx::__normal_iterator.6", align 8
  %12 = alloca i64, align 8
  store i64 %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 80, ptr %3) #5
  call void @_ZNSt5queueIxSt5dequeIxSaIxEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #5
  store i64 1, ptr %4, align 8, !tbaa !5
  br label %13

13:                                               ; preds = %30, %1
  %14 = load i64, ptr %4, align 8, !tbaa !5
  %15 = load i64, ptr %2, align 8, !tbaa !5
  %16 = icmp sle i64 %14, %15
  br i1 %16, label %18, label %17

17:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  br label %33

18:                                               ; preds = %13
  %19 = load i64, ptr %4, align 8, !tbaa !5
  %20 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @in_degree, i64 noundef %19) #5
  %21 = load i64, ptr %20, align 8, !tbaa !5
  %22 = icmp eq i64 %21, 0
  br i1 %22, label %23, label %29

23:                                               ; preds = %18
  invoke void @_ZNSt5queueIxSt5dequeIxSaIxEEE4pushERKx(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 8 dereferenceable(8) %4)
          to label %24 unwind label %25

24:                                               ; preds = %23
  br label %29

25:                                               ; preds = %23
  %26 = landingpad { ptr, i32 }
          cleanup
  %27 = extractvalue { ptr, i32 } %26, 0
  store ptr %27, ptr %5, align 8
  %28 = extractvalue { ptr, i32 } %26, 1
  store i32 %28, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  br label %98

29:                                               ; preds = %24, %18
  br label %30

30:                                               ; preds = %29
  %31 = load i64, ptr %4, align 8, !tbaa !5
  %32 = add nsw i64 %31, 1
  store i64 %32, ptr %4, align 8, !tbaa !5
  br label %13, !llvm.loop !9

33:                                               ; preds = %17
  call void @llvm.lifetime.start.p0(i64 24, ptr %7) #5
  call void @_ZNSt6vectorIxSaIxEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #5
  br label %34

34:                                               ; preds = %83, %33
  %35 = invoke noundef zeroext i1 @_ZNKSt5queueIxSt5dequeIxSaIxEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
          to label %36 unwind label %55

36:                                               ; preds = %34
  %37 = xor i1 %35, true
  br i1 %37, label %38, label %85

38:                                               ; preds = %36
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #5
  %39 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt5queueIxSt5dequeIxSaIxEEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
          to label %40 unwind label %59

40:                                               ; preds = %38
  %41 = load i64, ptr %39, align 8, !tbaa !5
  store i64 %41, ptr %8, align 8, !tbaa !5
  invoke void @_ZNSt5queueIxSt5dequeIxSaIxEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
          to label %42 unwind label %59

42:                                               ; preds = %40
  invoke void @_ZNSt6vectorIxSaIxEE9push_backERKx(ptr noundef nonnull align 8 dereferenceable(24) %7, ptr noundef nonnull align 8 dereferenceable(8) %8)
          to label %43 unwind label %59

43:                                               ; preds = %42
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #5
  %44 = load i64, ptr %8, align 8, !tbaa !5
  %45 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IxSaIxEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @adj, i64 noundef %44) #5
  store ptr %45, ptr %9, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #5
  %46 = load ptr, ptr %9, align 8, !tbaa !11
  %47 = call ptr @_ZNSt6vectorIxSaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %46) #5
  %48 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.6", ptr %10, i32 0, i32 0
  store ptr %47, ptr %48, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #5
  %49 = load ptr, ptr %9, align 8, !tbaa !11
  %50 = call ptr @_ZNSt6vectorIxSaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %49) #5
  %51 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.6", ptr %11, i32 0, i32 0
  store ptr %50, ptr %51, align 8
  br label %52

52:                                               ; preds = %81, %43
  %53 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPxSt6vectorIxSaIxEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %10, ptr noundef nonnull align 8 dereferenceable(8) %11) #5
  br i1 %53, label %63, label %54

54:                                               ; preds = %52
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #5
  br label %83

55:                                               ; preds = %94, %91, %89, %34
  %56 = landingpad { ptr, i32 }
          cleanup
  %57 = extractvalue { ptr, i32 } %56, 0
  store ptr %57, ptr %5, align 8
  %58 = extractvalue { ptr, i32 } %56, 1
  store i32 %58, ptr %6, align 4
  br label %97

59:                                               ; preds = %42, %40, %38
  %60 = landingpad { ptr, i32 }
          cleanup
  %61 = extractvalue { ptr, i32 } %60, 0
  store ptr %61, ptr %5, align 8
  %62 = extractvalue { ptr, i32 } %60, 1
  store i32 %62, ptr %6, align 4
  br label %84

63:                                               ; preds = %52
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #5
  %64 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPxSt6vectorIxSaIxEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %10) #5
  %65 = load i64, ptr %64, align 8, !tbaa !5
  store i64 %65, ptr %12, align 8, !tbaa !5
  %66 = load i64, ptr %12, align 8, !tbaa !5
  %67 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @in_degree, i64 noundef %66) #5
  %68 = load i64, ptr %67, align 8, !tbaa !5
  %69 = add nsw i64 %68, -1
  store i64 %69, ptr %67, align 8, !tbaa !5
  %70 = load i64, ptr %12, align 8, !tbaa !5
  %71 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @in_degree, i64 noundef %70) #5
  %72 = load i64, ptr %71, align 8, !tbaa !5
  %73 = icmp eq i64 %72, 0
  br i1 %73, label %74, label %80

74:                                               ; preds = %63
  invoke void @_ZNSt5queueIxSt5dequeIxSaIxEEE4pushERKx(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 8 dereferenceable(8) %12)
          to label %75 unwind label %76

75:                                               ; preds = %74
  br label %80

76:                                               ; preds = %74
  %77 = landingpad { ptr, i32 }
          cleanup
  %78 = extractvalue { ptr, i32 } %77, 0
  store ptr %78, ptr %5, align 8
  %79 = extractvalue { ptr, i32 } %77, 1
  store i32 %79, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #5
  br label %84

80:                                               ; preds = %75, %63
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #5
  br label %81

81:                                               ; preds = %80
  %82 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPxSt6vectorIxSaIxEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %10) #5
  br label %52

83:                                               ; preds = %54
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #5
  br label %34, !llvm.loop !13

84:                                               ; preds = %76, %59
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #5
  br label %97

85:                                               ; preds = %36
  %86 = call noundef i64 @_ZNKSt6vectorIxSaIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %7) #5
  %87 = load i64, ptr %2, align 8, !tbaa !5
  %88 = icmp ne i64 %86, %87
  br i1 %88, label %89, label %94

89:                                               ; preds = %85
  %90 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.3)
          to label %91 unwind label %55

91:                                               ; preds = %89
  %92 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %90, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %93 unwind label %55

93:                                               ; preds = %91
  br label %96

94:                                               ; preds = %85
  invoke void @_Z7print1dRKSt6vectorIxSaIxEE(ptr noundef nonnull align 8 dereferenceable(24) %7)
          to label %95 unwind label %55

95:                                               ; preds = %94
  br label %96

96:                                               ; preds = %95, %93
  call void @_ZNSt6vectorIxSaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #5
  call void @_ZNSt5queueIxSt5dequeIxSaIxEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %3) #5
  call void @llvm.lifetime.end.p0(i64 80, ptr %3) #5
  ret void

97:                                               ; preds = %84, %55
  call void @_ZNSt6vectorIxSaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #5
  br label %98

98:                                               ; preds = %97, %25
  call void @_ZNSt5queueIxSt5dequeIxSaIxEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %3) #5
  call void @llvm.lifetime.end.p0(i64 80, ptr %3) #5
  br label %99

99:                                               ; preds = %98
  %100 = load ptr, ptr %5, align 8
  %101 = load i32, ptr %6, align 4
  %102 = insertvalue { ptr, i32 } poison, ptr %100, 0
  %103 = insertvalue { ptr, i32 } %102, i32 %101, 1
  resume { ptr, i32 } %103
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5queueIxSt5dequeIxSaIxEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #0 align 2

; 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) #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5queueIxSt5dequeIxSaIxEEE4pushERKx(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIxSaIxEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt5queueIxSt5dequeIxSaIxEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt5queueIxSt5dequeIxSaIxEEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueIxSt5dequeIxSaIxEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80)) #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIxSaIxEE9push_backERKx(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IxSaIxEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIxSaIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueIxSt5dequeIxSaIxEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #4 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { 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 #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 = { 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 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !12, i64 0}
!12 = !{!"any pointer", !7, i64 0}
!13 = distinct !{!13, !10}


; 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::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<long long>, std::allocator<std::vector<long long>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"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::queue" = type { %"class.std::deque" }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<long long, std::allocator<long long>>::_Deque_impl" }
%"struct.std::_Deque_base<long long, std::allocator<long long>>::_Deque_impl" = type { %"struct.std::_Deque_base<long long, std::allocator<long long>>::_Deque_impl_data" }
%"struct.std::_Deque_base<long long, std::allocator<long long>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator", %"struct.std::_Deque_iterator" }
%"struct.std::_Deque_iterator" = type { ptr, ptr, ptr, ptr }
%"class.__gnu_cxx::__normal_iterator.6" = type { ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@adj = external dso_local global %"class.std::vector.0", align 8
@in_degree = external dso_local global %"class.std::vector", align 8
@.str.3 = external hidden unnamed_addr constant [10 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z7print1dRKSt6vectorIxSaIxEE(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0

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

; 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 #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 uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #0 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)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIxSaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIxSaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPxSt6vectorIxSaIxEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(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(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPxSt6vectorIxSaIxEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPxSt6vectorIxSaIxEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIxSaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z4kahnx(i64 noundef %0) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %2 = alloca %"class.std::queue", align 8
  %3 = alloca i64, align 8
  %4 = alloca %"class.std::vector", align 8
  %5 = alloca i64, align 8
  %6 = alloca %"class.__gnu_cxx::__normal_iterator.6", align 8
  %7 = alloca %"class.__gnu_cxx::__normal_iterator.6", align 8
  %8 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 80, ptr nonnull %2) #5
  call void @_ZNSt5queueIxSt5dequeIxSaIxEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #5
  store i64 1, ptr %3, align 8, !tbaa !5
  %.not15 = icmp slt i64 %0, 1
  br i1 %.not15, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %16, %1
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #5
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #5
  call void @_ZNSt6vectorIxSaIxEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #5
  %9 = call noundef zeroext i1 @_ZNKSt5queueIxSt5dequeIxSaIxEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  br i1 %9, label %._crit_edge22, label %.lr.ph21

.lr.ph:                                           ; preds = %1, %16
  %storemerge16 = phi i64 [ %18, %16 ], [ 1, %1 ]
  %10 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @in_degree, i64 noundef %storemerge16) #5
  %11 = load i64, ptr %10, align 8, !tbaa !5
  %12 = icmp eq i64 %11, 0
  br i1 %12, label %13, label %16

13:                                               ; preds = %.lr.ph
  invoke void @_ZNSt5queueIxSt5dequeIxSaIxEEE4pushERKx(ptr noundef nonnull align 8 dereferenceable(80) %2, ptr noundef nonnull align 8 dereferenceable(8) %3)
          to label %16 unwind label %14

14:                                               ; preds = %13
  %15 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #5
  br label %56

16:                                               ; preds = %.lr.ph, %13
  %17 = load i64, ptr %3, align 8, !tbaa !5
  %18 = add nsw i64 %17, 1
  store i64 %18, ptr %3, align 8, !tbaa !5
  %.not.not = icmp slt i64 %17, %0
  br i1 %.not.not, label %.lr.ph, label %._crit_edge, !llvm.loop !9

.lr.ph21:                                         ; preds = %._crit_edge, %._crit_edge19
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #5
  %19 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt5queueIxSt5dequeIxSaIxEEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  %20 = load i64, ptr %19, align 8, !tbaa !5
  store i64 %20, ptr %5, align 8, !tbaa !5
  call void @_ZNSt5queueIxSt5dequeIxSaIxEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  invoke void @_ZNSt6vectorIxSaIxEE9push_backERKx(ptr noundef nonnull align 8 dereferenceable(24) %4, ptr noundef nonnull align 8 dereferenceable(8) %5)
          to label %21 unwind label %30

21:                                               ; preds = %.lr.ph21
  %22 = load i64, ptr %5, align 8, !tbaa !5
  %23 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IxSaIxEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @adj, i64 noundef %22) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #5
  %24 = call ptr @_ZNSt6vectorIxSaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %23) #5
  store ptr %24, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #5
  %25 = call ptr @_ZNSt6vectorIxSaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %23) #5
  store ptr %25, ptr %7, align 8
  %26 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPxSt6vectorIxSaIxEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7) #5
  br i1 %26, label %.lr.ph18, label %._crit_edge19

._crit_edge19:                                    ; preds = %44, %21
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #5
  %27 = call noundef zeroext i1 @_ZNKSt5queueIxSt5dequeIxSaIxEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  br i1 %27, label %._crit_edge22, label %.lr.ph21, !llvm.loop !11

28:                                               ; preds = %53, %51, %49
  %29 = landingpad { ptr, i32 }
          cleanup
  br label %55

30:                                               ; preds = %.lr.ph21
  %31 = landingpad { ptr, i32 }
          cleanup
  br label %47

.lr.ph18:                                         ; preds = %21, %44
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #5
  %32 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPxSt6vectorIxSaIxEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #5
  %33 = load i64, ptr %32, align 8, !tbaa !5
  store i64 %33, ptr %8, align 8, !tbaa !5
  %34 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @in_degree, i64 noundef %33) #5
  %35 = load i64, ptr %34, align 8, !tbaa !5
  %36 = add nsw i64 %35, -1
  store i64 %36, ptr %34, align 8, !tbaa !5
  %37 = load i64, ptr %8, align 8, !tbaa !5
  %38 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @in_degree, i64 noundef %37) #5
  %39 = load i64, ptr %38, align 8, !tbaa !5
  %40 = icmp eq i64 %39, 0
  br i1 %40, label %41, label %44

41:                                               ; preds = %.lr.ph18
  invoke void @_ZNSt5queueIxSt5dequeIxSaIxEEE4pushERKx(ptr noundef nonnull align 8 dereferenceable(80) %2, ptr noundef nonnull align 8 dereferenceable(8) %8)
          to label %44 unwind label %42

42:                                               ; preds = %41
  %43 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #5
  br label %47

44:                                               ; preds = %41, %.lr.ph18
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #5
  %45 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPxSt6vectorIxSaIxEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #5
  %46 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPxSt6vectorIxSaIxEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7) #5
  br i1 %46, label %.lr.ph18, label %._crit_edge19

47:                                               ; preds = %42, %30
  %.pn = phi { ptr, i32 } [ %43, %42 ], [ %31, %30 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #5
  br label %55

._crit_edge22:                                    ; preds = %._crit_edge19, %._crit_edge
  %48 = call noundef i64 @_ZNKSt6vectorIxSaIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #5
  %.not10 = icmp eq i64 %48, %0
  br i1 %.not10, label %53, label %49

49:                                               ; preds = %._crit_edge22
  %50 = invoke 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)
          to label %51 unwind label %28

51:                                               ; preds = %49
  %52 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %50, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %54 unwind label %28

53:                                               ; preds = %._crit_edge22
  invoke void @_Z7print1dRKSt6vectorIxSaIxEE(ptr noundef nonnull align 8 dereferenceable(24) %4)
          to label %54 unwind label %28

54:                                               ; preds = %53, %51
  call void @_ZNSt6vectorIxSaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #5
  call void @_ZNSt5queueIxSt5dequeIxSaIxEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %2) #5
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %2) #5
  ret void

55:                                               ; preds = %47, %28
  %.pn.pn = phi { ptr, i32 } [ %.pn, %47 ], [ %29, %28 ]
  call void @_ZNSt6vectorIxSaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #5
  br label %56

56:                                               ; preds = %55, %14
  %.pn13 = phi { ptr, i32 } [ %15, %14 ], [ %.pn.pn, %55 ]
  call void @_ZNSt5queueIxSt5dequeIxSaIxEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %2) #5
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %2) #5
  resume { ptr, i32 } %.pn13
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5queueIxSt5dequeIxSaIxEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #0 align 2

; 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 #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5queueIxSt5dequeIxSaIxEEE4pushERKx(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIxSaIxEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt5queueIxSt5dequeIxSaIxEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt5queueIxSt5dequeIxSaIxEEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueIxSt5dequeIxSaIxEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIxSaIxEE9push_backERKx(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IxSaIxEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIxSaIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueIxSt5dequeIxSaIxEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #4 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { 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 #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 = { 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 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


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