; LLVM IR from next-step-for-interview-prep/Coding-Ninjas-DSA-course_code_and_notes_cpp :: 1/0000000000000354/BinaryTreeUse.ll (Z18takeInputLevelWisev)

; 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" }
%"class.std::queue" = type { %"class.std::deque" }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<BinaryTreeNode<int> *, std::allocator<BinaryTreeNode<int> *>>::_Deque_impl" }
%"struct.std::_Deque_base<BinaryTreeNode<int> *, std::allocator<BinaryTreeNode<int> *>>::_Deque_impl" = type { %"struct.std::_Deque_base<BinaryTreeNode<int> *, std::allocator<BinaryTreeNode<int> *>>::_Deque_impl_data" }
%"struct.std::_Deque_base<BinaryTreeNode<int> *, std::allocator<BinaryTreeNode<int> *>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator", %"struct.std::_Deque_iterator" }
%"struct.std::_Deque_iterator" = type { ptr, ptr, ptr, ptr }
%class.BinaryTreeNode = type { i32, ptr, ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [16 x i8], align 1
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str.1 = external hidden unnamed_addr constant [21 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [22 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_Z18takeInputLevelWisev() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca ptr, align 8
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::queue", align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca ptr, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #8
  %13 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  %14 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %13, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  %15 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %16 = load i32, ptr %2, align 4, !tbaa !5
  %17 = icmp eq i32 %16, -1
  br i1 %17, label %18, label %19

18:                                               ; preds = %0
  store ptr null, ptr %1, align 8
  store i32 1, ptr %3, align 4
  br label %124

19:                                               ; preds = %0
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #8
  %20 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 24) #9
  %21 = load i32, ptr %2, align 4, !tbaa !5
  invoke void @_ZN14BinaryTreeNodeIiEC2Ei(ptr noundef nonnull align 8 dereferenceable(24) %20, i32 noundef %21)
          to label %22 unwind label %55

22:                                               ; preds = %19
  store ptr %20, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 80, ptr %7) #8
  call void @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEEC2IS5_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %7)
  invoke void @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEE4pushERKS2_(ptr noundef nonnull align 8 dereferenceable(80) %7, ptr noundef nonnull align 8 dereferenceable(8) %4)
          to label %23 unwind label %59

23:                                               ; preds = %22
  br label %24

24:                                               ; preds = %116, %23
  %25 = invoke noundef i64 @_ZNKSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(80) %7)
          to label %26 unwind label %59

26:                                               ; preds = %24
  %27 = icmp ne i64 %25, 0
  br i1 %27, label %28, label %120

28:                                               ; preds = %26
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #8
  %29 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80) %7)
          to label %30 unwind label %63

30:                                               ; preds = %28
  %31 = load ptr, ptr %29, align 8, !tbaa !9
  store ptr %31, ptr %8, align 8, !tbaa !9
  invoke void @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %7)
          to label %32 unwind label %63

32:                                               ; preds = %30
  %33 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.1)
          to label %34 unwind label %63

34:                                               ; preds = %32
  %35 = load ptr, ptr %8, align 8, !tbaa !9
  %36 = getelementptr inbounds %class.BinaryTreeNode, ptr %35, i32 0, i32 0
  %37 = load i32, ptr %36, align 8, !tbaa !11
  %38 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %33, i32 noundef %37)
          to label %39 unwind label %63

39:                                               ; preds = %34
  %40 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %38, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %41 unwind label %63

41:                                               ; preds = %39
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #8
  %42 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %9)
          to label %43 unwind label %67

43:                                               ; preds = %41
  %44 = load i32, ptr %9, align 4, !tbaa !5
  %45 = icmp ne i32 %44, -1
  br i1 %45, label %46, label %80

46:                                               ; preds = %43
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #8
  %47 = invoke noalias noundef nonnull ptr @_Znwm(i64 noundef 24) #9
          to label %48 unwind label %71

48:                                               ; preds = %46
  %49 = load i32, ptr %9, align 4, !tbaa !5
  invoke void @_ZN14BinaryTreeNodeIiEC2Ei(ptr noundef nonnull align 8 dereferenceable(24) %47, i32 noundef %49)
          to label %50 unwind label %75

50:                                               ; preds = %48
  store ptr %47, ptr %10, align 8, !tbaa !9
  %51 = load ptr, ptr %10, align 8, !tbaa !9
  %52 = load ptr, ptr %8, align 8, !tbaa !9
  %53 = getelementptr inbounds %class.BinaryTreeNode, ptr %52, i32 0, i32 1
  store ptr %51, ptr %53, align 8, !tbaa !13
  invoke void @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEE4pushERKS2_(ptr noundef nonnull align 8 dereferenceable(80) %7, ptr noundef nonnull align 8 dereferenceable(8) %10)
          to label %54 unwind label %71

54:                                               ; preds = %50
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #8
  br label %80

55:                                               ; preds = %19
  %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
  call void @_ZdlPvm(ptr noundef %20, i64 noundef 24) #10
  br label %123

59:                                               ; preds = %24, %22
  %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 %122

63:                                               ; preds = %39, %34, %32, %30, %28
  %64 = landingpad { ptr, i32 }
          cleanup
  %65 = extractvalue { ptr, i32 } %64, 0
  store ptr %65, ptr %5, align 8
  %66 = extractvalue { ptr, i32 } %64, 1
  store i32 %66, ptr %6, align 4
  br label %119

67:                                               ; preds = %87, %82, %80, %41
  %68 = landingpad { ptr, i32 }
          cleanup
  %69 = extractvalue { ptr, i32 } %68, 0
  store ptr %69, ptr %5, align 8
  %70 = extractvalue { ptr, i32 } %68, 1
  store i32 %70, ptr %6, align 4
  br label %118

71:                                               ; preds = %50, %46
  %72 = landingpad { ptr, i32 }
          cleanup
  %73 = extractvalue { ptr, i32 } %72, 0
  store ptr %73, ptr %5, align 8
  %74 = extractvalue { ptr, i32 } %72, 1
  store i32 %74, ptr %6, align 4
  br label %79

75:                                               ; preds = %48
  %76 = landingpad { ptr, i32 }
          cleanup
  %77 = extractvalue { ptr, i32 } %76, 0
  store ptr %77, ptr %5, align 8
  %78 = extractvalue { ptr, i32 } %76, 1
  store i32 %78, ptr %6, align 4
  call void @_ZdlPvm(ptr noundef %47, i64 noundef 24) #10
  br label %79

79:                                               ; preds = %75, %71
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #8
  br label %118

80:                                               ; preds = %54, %43
  %81 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.2)
          to label %82 unwind label %67

82:                                               ; preds = %80
  %83 = load ptr, ptr %8, align 8, !tbaa !9
  %84 = getelementptr inbounds %class.BinaryTreeNode, ptr %83, i32 0, i32 0
  %85 = load i32, ptr %84, align 8, !tbaa !11
  %86 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %81, i32 noundef %85)
          to label %87 unwind label %67

87:                                               ; preds = %82
  %88 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %86, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %89 unwind label %67

89:                                               ; preds = %87
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #8
  %90 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %11)
          to label %91 unwind label %103

91:                                               ; preds = %89
  %92 = load i32, ptr %11, align 4, !tbaa !5
  %93 = icmp ne i32 %92, -1
  br i1 %93, label %94, label %116

94:                                               ; preds = %91
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #8
  %95 = invoke noalias noundef nonnull ptr @_Znwm(i64 noundef 24) #9
          to label %96 unwind label %107

96:                                               ; preds = %94
  %97 = load i32, ptr %11, align 4, !tbaa !5
  invoke void @_ZN14BinaryTreeNodeIiEC2Ei(ptr noundef nonnull align 8 dereferenceable(24) %95, i32 noundef %97)
          to label %98 unwind label %111

98:                                               ; preds = %96
  store ptr %95, ptr %12, align 8, !tbaa !9
  %99 = load ptr, ptr %12, align 8, !tbaa !9
  %100 = load ptr, ptr %8, align 8, !tbaa !9
  %101 = getelementptr inbounds %class.BinaryTreeNode, ptr %100, i32 0, i32 2
  store ptr %99, ptr %101, align 8, !tbaa !14
  invoke void @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEE4pushERKS2_(ptr noundef nonnull align 8 dereferenceable(80) %7, ptr noundef nonnull align 8 dereferenceable(8) %12)
          to label %102 unwind label %107

102:                                              ; preds = %98
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #8
  br label %116

103:                                              ; preds = %89
  %104 = landingpad { ptr, i32 }
          cleanup
  %105 = extractvalue { ptr, i32 } %104, 0
  store ptr %105, ptr %5, align 8
  %106 = extractvalue { ptr, i32 } %104, 1
  store i32 %106, ptr %6, align 4
  br label %117

107:                                              ; preds = %98, %94
  %108 = landingpad { ptr, i32 }
          cleanup
  %109 = extractvalue { ptr, i32 } %108, 0
  store ptr %109, ptr %5, align 8
  %110 = extractvalue { ptr, i32 } %108, 1
  store i32 %110, ptr %6, align 4
  br label %115

111:                                              ; preds = %96
  %112 = landingpad { ptr, i32 }
          cleanup
  %113 = extractvalue { ptr, i32 } %112, 0
  store ptr %113, ptr %5, align 8
  %114 = extractvalue { ptr, i32 } %112, 1
  store i32 %114, ptr %6, align 4
  call void @_ZdlPvm(ptr noundef %95, i64 noundef 24) #10
  br label %115

115:                                              ; preds = %111, %107
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #8
  br label %117

116:                                              ; preds = %102, %91
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #8
  br label %24, !llvm.loop !15

117:                                              ; preds = %115, %103
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #8
  br label %118

118:                                              ; preds = %117, %79, %67
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #8
  br label %119

119:                                              ; preds = %118, %63
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #8
  br label %122

120:                                              ; preds = %26
  %121 = load ptr, ptr %4, align 8, !tbaa !9
  store ptr %121, ptr %1, align 8
  store i32 1, ptr %3, align 4
  call void @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %7) #8
  call void @llvm.lifetime.end.p0(i64 80, ptr %7) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #8
  br label %124

122:                                              ; preds = %119, %59
  call void @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %7) #8
  call void @llvm.lifetime.end.p0(i64 80, ptr %7) #8
  br label %123

123:                                              ; preds = %122, %55
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #8
  br label %126

124:                                              ; preds = %120, %18
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #8
  %125 = load ptr, ptr %1, align 8
  ret ptr %125

126:                                              ; preds = %123
  %127 = load ptr, ptr %5, align 8
  %128 = load i32, ptr %6, align 4
  %129 = insertvalue { ptr, i32 } poison, ptr %127, 0
  %130 = insertvalue { ptr, i32 } %129, i32 %128, 1
  resume { ptr, i32 } %130
}

; 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: 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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #3

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN14BinaryTreeNodeIiEC2Ei(ptr noundef nonnull align 8 dereferenceable(24), i32 noundef) unnamed_addr #5 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) #6

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEEC2IS5_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEE4pushERKS2_(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 noundef i64 @_ZNKSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(80)) #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80)) #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEE3popEv(ptr noundef nonnull align 8 dereferenceable(80)) #5 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #3

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #7 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 = { "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 = { nobuiltin allocsize(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 = { 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 #6 = { nobuiltin nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #7 = { 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 #8 = { nounwind }
attributes #9 = { builtin allocsize(0) }
attributes #10 = { builtin 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, !6, i64 0}
!12 = !{!"_ZTS14BinaryTreeNodeIiE", !6, i64 0, !10, i64 8, !10, i64 16}
!13 = !{!12, !10, i64 8}
!14 = !{!12, !10, i64 16}
!15 = distinct !{!15, !16}
!16 = !{!"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" }
%"class.std::queue" = type { %"class.std::deque" }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<BinaryTreeNode<int> *, std::allocator<BinaryTreeNode<int> *>>::_Deque_impl" }
%"struct.std::_Deque_base<BinaryTreeNode<int> *, std::allocator<BinaryTreeNode<int> *>>::_Deque_impl" = type { %"struct.std::_Deque_base<BinaryTreeNode<int> *, std::allocator<BinaryTreeNode<int> *>>::_Deque_impl_data" }
%"struct.std::_Deque_base<BinaryTreeNode<int> *, std::allocator<BinaryTreeNode<int> *>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator", %"struct.std::_Deque_iterator" }
%"struct.std::_Deque_iterator" = type { ptr, ptr, ptr, ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [16 x i8], align 1
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str.1 = external hidden unnamed_addr constant [21 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [22 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_Z18takeInputLevelWisev() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca ptr, align 8
  %3 = alloca %"class.std::queue", align 8
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #7
  %8 = 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)
  %9 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %8, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  %10 = 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)
  %11 = load i32, ptr %1, align 4, !tbaa !5
  %12 = icmp eq i32 %11, -1
  br i1 %12, label %67, label %13

13:                                               ; preds = %0
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #7
  %14 = call noalias noundef nonnull dereferenceable(24) ptr @_Znwm(i64 noundef 24) #8
  call void @_ZN14BinaryTreeNodeIiEC2Ei(ptr noundef nonnull align 8 dereferenceable(24) %14, i32 noundef %11)
  store ptr %14, ptr %2, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 80, ptr nonnull %3) #7
  call void @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEEC2IS5_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  invoke void @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEE4pushERKS2_(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 8 dereferenceable(8) %2)
          to label %.preheader unwind label %33

.preheader:                                       ; preds = %13
  %15 = call noundef i64 @_ZNKSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  %.not17 = icmp eq i64 %15, 0
  br i1 %.not17, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %.preheader, %61
  %16 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  %17 = load ptr, ptr %16, align 8, !tbaa !9
  call void @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  %18 = 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.1)
          to label %19 unwind label %35

19:                                               ; preds = %.lr.ph
  %20 = load i32, ptr %17, align 8, !tbaa !11
  %21 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %18, i32 noundef %20)
          to label %22 unwind label %35

22:                                               ; preds = %19
  %23 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %21, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %24 unwind label %35

24:                                               ; preds = %22
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #7
  %25 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %4)
          to label %26 unwind label %37

26:                                               ; preds = %24
  %27 = load i32, ptr %4, align 4, !tbaa !5
  %.not11 = icmp eq i32 %27, -1
  br i1 %.not11, label %41, label %28

28:                                               ; preds = %26
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #7
  %29 = invoke noalias noundef nonnull dereferenceable(24) ptr @_Znwm(i64 noundef 24) #8
          to label %30 unwind label %39

30:                                               ; preds = %28
  call void @_ZN14BinaryTreeNodeIiEC2Ei(ptr noundef nonnull align 8 dereferenceable(24) %29, i32 noundef %27)
  store ptr %29, ptr %5, align 8, !tbaa !9
  %31 = getelementptr inbounds i8, ptr %17, i64 8
  store ptr %29, ptr %31, align 8, !tbaa !13
  invoke void @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEE4pushERKS2_(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 8 dereferenceable(8) %5)
          to label %32 unwind label %39

32:                                               ; preds = %30
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #7
  br label %41

33:                                               ; preds = %13
  %34 = landingpad { ptr, i32 }
          cleanup
  br label %66

35:                                               ; preds = %22, %19, %.lr.ph
  %36 = landingpad { ptr, i32 }
          cleanup
  br label %66

37:                                               ; preds = %46, %43, %41, %24
  %38 = landingpad { ptr, i32 }
          cleanup
  br label %64

39:                                               ; preds = %30, %28
  %40 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #7
  br label %64

41:                                               ; preds = %32, %26
  %42 = 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.2)
          to label %43 unwind label %37

43:                                               ; preds = %41
  %44 = load i32, ptr %17, align 8, !tbaa !11
  %45 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %42, i32 noundef %44)
          to label %46 unwind label %37

46:                                               ; preds = %43
  %47 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %45, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %48 unwind label %37

48:                                               ; preds = %46
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #7
  %49 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %6)
          to label %50 unwind label %57

50:                                               ; preds = %48
  %51 = load i32, ptr %6, align 4, !tbaa !5
  %.not12 = icmp eq i32 %51, -1
  br i1 %.not12, label %61, label %52

52:                                               ; preds = %50
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #7
  %53 = invoke noalias noundef nonnull dereferenceable(24) ptr @_Znwm(i64 noundef 24) #8
          to label %54 unwind label %59

54:                                               ; preds = %52
  call void @_ZN14BinaryTreeNodeIiEC2Ei(ptr noundef nonnull align 8 dereferenceable(24) %53, i32 noundef %51)
  store ptr %53, ptr %7, align 8, !tbaa !9
  %55 = getelementptr inbounds i8, ptr %17, i64 16
  store ptr %53, ptr %55, align 8, !tbaa !14
  invoke void @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEE4pushERKS2_(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 8 dereferenceable(8) %7)
          to label %56 unwind label %59

56:                                               ; preds = %54
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #7
  br label %61

57:                                               ; preds = %48
  %58 = landingpad { ptr, i32 }
          cleanup
  br label %63

59:                                               ; preds = %54, %52
  %60 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #7
  br label %63

61:                                               ; preds = %56, %50
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #7
  %62 = call noundef i64 @_ZNKSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  %.not = icmp eq i64 %62, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !15

63:                                               ; preds = %59, %57
  %.pn = phi { ptr, i32 } [ %60, %59 ], [ %58, %57 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #7
  br label %64

64:                                               ; preds = %63, %39, %37
  %.pn.pn = phi { ptr, i32 } [ %.pn, %63 ], [ %38, %37 ], [ %40, %39 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #7
  br label %66

._crit_edge:                                      ; preds = %61, %.preheader
  %65 = load ptr, ptr %2, align 8, !tbaa !9
  call void @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %3) #7
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %3) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #7
  br label %67

66:                                               ; preds = %35, %64, %33
  %.pn.pn.pn.pn = phi { ptr, i32 } [ %34, %33 ], [ %.pn.pn, %64 ], [ %36, %35 ]
  call void @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %3) #7
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %3) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  resume { ptr, i32 } %.pn.pn.pn.pn

67:                                               ; preds = %0, %._crit_edge
  %.0 = phi ptr [ %65, %._crit_edge ], [ null, %0 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  ret ptr %.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 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

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 #3

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN14BinaryTreeNodeIiEC2Ei(ptr noundef nonnull align 8 dereferenceable(24), i32 noundef) unnamed_addr #5 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEEC2IS5_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEE4pushERKS2_(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 noundef i64 @_ZNKSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEE3popEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #5 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #3

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueIP14BinaryTreeNodeIiESt5dequeIS2_SaIS2_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #6 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 = { "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 = { nobuiltin allocsize(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 = { 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 #6 = { 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 #7 = { nounwind }
attributes #8 = { builtin allocsize(0) }

!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, !6, i64 0}
!12 = !{!"_ZTS14BinaryTreeNodeIiE", !6, i64 0, !10, i64 8, !10, i64 16}
!13 = !{!12, !10, i64 8}
!14 = !{!12, !10, i64 16}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}


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