; LLVM IR from ritikbanger/Hacktoberfest2022-DSA :: 14. Tree/BinaryTree_BFS_Traversal.ll (Z3bfsP4node)

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

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

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) #1

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z3bfsP4node(ptr noundef %0) #2 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca %"class.std::queue", align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 80, ptr %3) #5
  call void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEEC2IS4_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  invoke void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE4pushERKS1_(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 8 dereferenceable(8) %2)
          to label %10 unwind label %30

10:                                               ; preds = %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #5
  store ptr null, ptr %6, align 8, !tbaa !5
  invoke void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE4pushEOS1_(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 8 dereferenceable(8) %6)
          to label %11 unwind label %34

11:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  br label %12

12:                                               ; preds = %81, %79, %11
  %13 = invoke noundef zeroext i1 @_ZNKSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
          to label %14 unwind label %30

14:                                               ; preds = %12
  %15 = xor i1 %13, true
  br i1 %15, label %16, label %83

16:                                               ; preds = %14
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  %17 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
          to label %18 unwind label %38

18:                                               ; preds = %16
  %19 = load ptr, ptr %17, align 8, !tbaa !5
  store ptr %19, ptr %7, align 8, !tbaa !5
  invoke void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
          to label %20 unwind label %38

20:                                               ; preds = %18
  %21 = load ptr, ptr %7, align 8, !tbaa !5
  %22 = icmp eq ptr %21, null
  br i1 %22, label %23, label %47

23:                                               ; preds = %20
  %24 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
          to label %25 unwind label %38

25:                                               ; preds = %23
  %26 = invoke noundef zeroext i1 @_ZNKSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
          to label %27 unwind label %38

27:                                               ; preds = %25
  br i1 %26, label %46, label %28

28:                                               ; preds = %27
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #5
  store ptr null, ptr %8, align 8, !tbaa !5
  invoke void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE4pushEOS1_(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 8 dereferenceable(8) %8)
          to label %29 unwind label %42

29:                                               ; preds = %28
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #5
  br label %46

30:                                               ; preds = %12, %1
  %31 = landingpad { ptr, i32 }
          cleanup
  %32 = extractvalue { ptr, i32 } %31, 0
  store ptr %32, ptr %4, align 8
  %33 = extractvalue { ptr, i32 } %31, 1
  store i32 %33, ptr %5, align 4
  br label %84

34:                                               ; preds = %10
  %35 = landingpad { ptr, i32 }
          cleanup
  %36 = extractvalue { ptr, i32 } %35, 0
  store ptr %36, ptr %4, align 8
  %37 = extractvalue { ptr, i32 } %35, 1
  store i32 %37, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  br label %84

38:                                               ; preds = %74, %62, %52, %47, %25, %23, %18, %16
  %39 = landingpad { ptr, i32 }
          cleanup
  %40 = extractvalue { ptr, i32 } %39, 0
  store ptr %40, ptr %4, align 8
  %41 = extractvalue { ptr, i32 } %39, 1
  store i32 %41, ptr %5, align 4
  br label %82

42:                                               ; preds = %28
  %43 = landingpad { ptr, i32 }
          cleanup
  %44 = extractvalue { ptr, i32 } %43, 0
  store ptr %44, ptr %4, align 8
  %45 = extractvalue { ptr, i32 } %43, 1
  store i32 %45, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #5
  br label %82

46:                                               ; preds = %29, %27
  store i32 2, ptr %9, align 4
  br label %79, !llvm.loop !9

47:                                               ; preds = %20
  %48 = load ptr, ptr %7, align 8, !tbaa !5
  %49 = getelementptr inbounds %class.node, ptr %48, i32 0, i32 2
  %50 = load i64, ptr %49, align 8, !tbaa !11
  %51 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %50)
          to label %52 unwind label %38

52:                                               ; preds = %47
  %53 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %51, i8 noundef signext 32)
          to label %54 unwind label %38

54:                                               ; preds = %52
  %55 = load ptr, ptr %7, align 8, !tbaa !5
  %56 = icmp ne ptr %55, null
  br i1 %56, label %57, label %66

57:                                               ; preds = %54
  %58 = load ptr, ptr %7, align 8, !tbaa !5
  %59 = getelementptr inbounds %class.node, ptr %58, i32 0, i32 1
  %60 = load ptr, ptr %59, align 8, !tbaa !14
  %61 = icmp ne ptr %60, null
  br i1 %61, label %62, label %66

62:                                               ; preds = %57
  %63 = load ptr, ptr %7, align 8, !tbaa !5
  %64 = getelementptr inbounds %class.node, ptr %63, i32 0, i32 1
  invoke void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE4pushERKS1_(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 8 dereferenceable(8) %64)
          to label %65 unwind label %38

65:                                               ; preds = %62
  br label %66

66:                                               ; preds = %65, %57, %54
  %67 = load ptr, ptr %7, align 8, !tbaa !5
  %68 = icmp ne ptr %67, null
  br i1 %68, label %69, label %78

69:                                               ; preds = %66
  %70 = load ptr, ptr %7, align 8, !tbaa !5
  %71 = getelementptr inbounds %class.node, ptr %70, i32 0, i32 0
  %72 = load ptr, ptr %71, align 8, !tbaa !15
  %73 = icmp ne ptr %72, null
  br i1 %73, label %74, label %78

74:                                               ; preds = %69
  %75 = load ptr, ptr %7, align 8, !tbaa !5
  %76 = getelementptr inbounds %class.node, ptr %75, i32 0, i32 0
  invoke void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE4pushERKS1_(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 8 dereferenceable(8) %76)
          to label %77 unwind label %38

77:                                               ; preds = %74
  br label %78

78:                                               ; preds = %77, %69, %66
  store i32 0, ptr %9, align 4
  br label %79

79:                                               ; preds = %78, %46
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  %80 = load i32, ptr %9, align 4
  switch i32 %80, label %90 [
    i32 0, label %81
    i32 2, label %12
  ]

81:                                               ; preds = %79
  br label %12, !llvm.loop !9

82:                                               ; preds = %42, %38
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  br label %84

83:                                               ; preds = %14
  call void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %3) #5
  call void @llvm.lifetime.end.p0(i64 80, ptr %3) #5
  ret void

84:                                               ; preds = %82, %34, %30
  call void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %3) #5
  call void @llvm.lifetime.end.p0(i64 80, ptr %3) #5
  br label %85

85:                                               ; preds = %84
  %86 = load ptr, ptr %4, align 8
  %87 = load i32, ptr %5, align 4
  %88 = insertvalue { ptr, i32 } poison, ptr %86, 0
  %89 = insertvalue { ptr, i32 } %88, i32 %87, 1
  resume { ptr, i32 } %89

90:                                               ; preds = %79
  unreachable
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEEC2IS4_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE4pushERKS1_(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE4pushEOS1_(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE5emptyEv(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 @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE3popEv(ptr noundef nonnull align 8 dereferenceable(80)) #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #1

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #4 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !13, i64 16}
!12 = !{!"_ZTS4node", !6, i64 0, !6, i64 8, !13, i64 16}
!13 = !{!"long long", !7, i64 0}
!14 = !{!12, !6, i64 8}
!15 = !{!12, !6, 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::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::queue" = type { %"class.std::deque" }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<node *, std::allocator<node *>>::_Deque_impl" }
%"struct.std::_Deque_base<node *, std::allocator<node *>>::_Deque_impl" = type { %"struct.std::_Deque_base<node *, std::allocator<node *>>::_Deque_impl_data" }
%"struct.std::_Deque_base<node *, std::allocator<node *>>::_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 [2 x i8], align 1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z3bfsP4node(ptr noundef %0) local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca %"class.std::queue", align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 80, ptr nonnull %3) #5
  call void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEEC2IS4_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  invoke void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE4pushERKS1_(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 8 dereferenceable(8) %2)
          to label %6 unwind label %18

6:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #5
  store ptr null, ptr %4, align 8, !tbaa !5
  invoke void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE4pushEOS1_(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 8 dereferenceable(8) %4)
          to label %7 unwind label %20

7:                                                ; preds = %6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  %8 = call noundef zeroext i1 @_ZNKSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  br i1 %8, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %7, %39
  %9 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  %10 = load ptr, ptr %9, align 8, !tbaa !5
  call void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  %11 = icmp eq ptr %10, null
  br i1 %11, label %12, label %26

12:                                               ; preds = %.lr.ph
  %13 = 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)
          to label %14 unwind label %22

14:                                               ; preds = %12
  %15 = call noundef zeroext i1 @_ZNKSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  br i1 %15, label %39, label %16, !llvm.loop !9

16:                                               ; preds = %14
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #5
  store ptr null, ptr %5, align 8, !tbaa !5
  invoke void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE4pushEOS1_(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 8 dereferenceable(8) %5)
          to label %17 unwind label %24

17:                                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #5
  br label %39, !llvm.loop !9

18:                                               ; preds = %1
  %19 = landingpad { ptr, i32 }
          cleanup
  br label %41

20:                                               ; preds = %6
  %21 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  br label %41

22:                                               ; preds = %38, %35, %30, %26, %12
  %23 = landingpad { ptr, i32 }
          cleanup
  br label %41

24:                                               ; preds = %16
  %25 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #5
  br label %41

26:                                               ; preds = %.lr.ph
  %27 = getelementptr inbounds i8, ptr %10, i64 16
  %28 = load i64, ptr %27, align 8, !tbaa !11
  %29 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %28)
          to label %30 unwind label %22

30:                                               ; preds = %26
  %31 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %29, i8 noundef signext 32)
          to label %32 unwind label %22

32:                                               ; preds = %30
  %33 = getelementptr inbounds i8, ptr %10, i64 8
  %34 = load ptr, ptr %33, align 8, !tbaa !14
  %.not = icmp eq ptr %34, null
  br i1 %.not, label %36, label %35

35:                                               ; preds = %32
  invoke void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE4pushERKS1_(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 8 dereferenceable(8) %33)
          to label %36 unwind label %22

36:                                               ; preds = %32, %35
  %37 = load ptr, ptr %10, align 8, !tbaa !15
  %.not12 = icmp eq ptr %37, null
  br i1 %.not12, label %39, label %38

38:                                               ; preds = %36
  invoke void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE4pushERKS1_(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 8 dereferenceable(8) %10)
          to label %39 unwind label %22

39:                                               ; preds = %36, %38, %14, %17
  %40 = call noundef zeroext i1 @_ZNKSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  br i1 %40, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %39, %7
  call void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %3) #5
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %3) #5
  ret void

41:                                               ; preds = %22, %24, %20, %18
  %.pn.pn = phi { ptr, i32 } [ %21, %20 ], [ %19, %18 ], [ %25, %24 ], [ %23, %22 ]
  call void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %3) #5
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %3) #5
  resume { ptr, i32 } %.pn.pn
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEEC2IS4_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE4pushERKS1_(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE4pushEOS1_(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE5emptyEv(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 @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEE3popEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #1

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueIP4nodeSt5dequeIS1_SaIS1_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #4 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !13, i64 16}
!12 = !{!"_ZTS4node", !6, i64 0, !6, i64 8, !13, i64 16}
!13 = !{!"long long", !7, i64 0}
!14 = !{!12, !6, i64 8}
!15 = !{!12, !6, i64 0}


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