; LLVM IR from ahampriyanshu/algo-ds-101 :: Data-Structures/Tree/Binary-Search-Tree/Binary_Search_Tree.ll (Z4mirrP3dll)

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

; 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: mustprogress uwtable
declare dso_local void @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEEC2IS4_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEE4pushERKS1_(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt5queueIP3dllSt5dequeIS1_SaIS1_EEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEE3popEv(ptr noundef nonnull align 8 dereferenceable(80)) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_Z4mirrP3dll(ptr noundef %0) #1 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca %"class.std::queue", align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = icmp eq ptr %9, null
  br i1 %10, label %11, label %12

11:                                               ; preds = %1
  store ptr null, ptr %2, align 8
  br label %57

12:                                               ; preds = %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #4
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  store ptr %13, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 80, ptr %5) #4
  call void @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEEC2IS4_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %5)
  invoke void @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEE4pushERKS1_(ptr noundef nonnull align 8 dereferenceable(80) %5, ptr noundef nonnull align 8 dereferenceable(8) %3)
          to label %14 unwind label %36

14:                                               ; preds = %12
  br label %15

15:                                               ; preds = %53, %14
  %16 = invoke noundef zeroext i1 @_ZNKSt5queueIP3dllSt5dequeIS1_SaIS1_EEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %5)
          to label %17 unwind label %36

17:                                               ; preds = %15
  %18 = xor i1 %16, true
  br i1 %18, label %19, label %54

19:                                               ; preds = %17
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  %20 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80) %5)
          to label %21 unwind label %40

21:                                               ; preds = %19
  %22 = load ptr, ptr %20, align 8, !tbaa !5
  store ptr %22, ptr %8, align 8, !tbaa !5
  invoke void @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %5)
          to label %23 unwind label %40

23:                                               ; preds = %21
  %24 = load ptr, ptr %8, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.dll, ptr %24, i32 0, i32 1
  %26 = load ptr, ptr %8, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.dll, ptr %26, i32 0, i32 2
  call void @_ZSt4swapIP3dllENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS5_ESt18is_move_assignableIS5_EEE5valueEvE4typeERS5_SE_(ptr noundef nonnull align 8 dereferenceable(8) %25, ptr noundef nonnull align 8 dereferenceable(8) %27) #4
  %28 = load ptr, ptr %8, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.dll, ptr %28, i32 0, i32 1
  %30 = load ptr, ptr %29, align 8, !tbaa !9
  %31 = icmp ne ptr %30, null
  br i1 %31, label %32, label %44

32:                                               ; preds = %23
  %33 = load ptr, ptr %8, align 8, !tbaa !5
  %34 = getelementptr inbounds %struct.dll, ptr %33, i32 0, i32 1
  invoke void @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEE4pushERKS1_(ptr noundef nonnull align 8 dereferenceable(80) %5, ptr noundef nonnull align 8 dereferenceable(8) %34)
          to label %35 unwind label %40

35:                                               ; preds = %32
  br label %44

36:                                               ; preds = %15, %12
  %37 = landingpad { ptr, i32 }
          cleanup
  %38 = extractvalue { ptr, i32 } %37, 0
  store ptr %38, ptr %6, align 8
  %39 = extractvalue { ptr, i32 } %37, 1
  store i32 %39, ptr %7, align 4
  br label %56

40:                                               ; preds = %49, %32, %21, %19
  %41 = landingpad { ptr, i32 }
          cleanup
  %42 = extractvalue { ptr, i32 } %41, 0
  store ptr %42, ptr %6, align 8
  %43 = extractvalue { ptr, i32 } %41, 1
  store i32 %43, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  br label %56

44:                                               ; preds = %35, %23
  %45 = load ptr, ptr %8, align 8, !tbaa !5
  %46 = getelementptr inbounds %struct.dll, ptr %45, i32 0, i32 2
  %47 = load ptr, ptr %46, align 8, !tbaa !12
  %48 = icmp ne ptr %47, null
  br i1 %48, label %49, label %53

49:                                               ; preds = %44
  %50 = load ptr, ptr %8, align 8, !tbaa !5
  %51 = getelementptr inbounds %struct.dll, ptr %50, i32 0, i32 2
  invoke void @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEE4pushERKS1_(ptr noundef nonnull align 8 dereferenceable(80) %5, ptr noundef nonnull align 8 dereferenceable(8) %51)
          to label %52 unwind label %40

52:                                               ; preds = %49
  br label %53

53:                                               ; preds = %52, %44
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  br label %15, !llvm.loop !13

54:                                               ; preds = %17
  %55 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %55, ptr %2, align 8
  call void @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %5) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  br label %57

56:                                               ; preds = %40, %36
  call void @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %5) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  br label %59

57:                                               ; preds = %54, %11
  %58 = load ptr, ptr %2, align 8
  ret ptr %58

59:                                               ; preds = %56
  %60 = load ptr, ptr %6, align 8
  %61 = load i32, ptr %7, align 4
  %62 = insertvalue { ptr, i32 } poison, ptr %60, 0
  %63 = insertvalue { ptr, i32 } %62, i32 %61, 1
  resume { ptr, i32 } %63
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZSt4swapIP3dllENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS5_ESt18is_move_assignableIS5_EEE5valueEvE4typeERS5_SE_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #3

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

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 8}
!10 = !{!"_ZTS3dll", !11, i64 0, !6, i64 8, !6, i64 16}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, i64 16}
!13 = distinct !{!13, !14}
!14 = !{!"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::queue" = type { %"class.std::deque" }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<dll *, std::allocator<dll *>>::_Deque_impl" }
%"struct.std::_Deque_base<dll *, std::allocator<dll *>>::_Deque_impl" = type { %"struct.std::_Deque_base<dll *, std::allocator<dll *>>::_Deque_impl_data" }
%"struct.std::_Deque_base<dll *, std::allocator<dll *>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator", %"struct.std::_Deque_iterator" }
%"struct.std::_Deque_iterator" = type { ptr, ptr, ptr, ptr }

; 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: mustprogress uwtable
declare dso_local void @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEEC2IS4_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEE4pushERKS1_(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt5queueIP3dllSt5dequeIS1_SaIS1_EEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEE3popEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_Z4mirrP3dll(ptr noundef returned %0) local_unnamed_addr #1 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca %"class.std::queue", align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = icmp eq ptr %0, null
  br i1 %4, label %23, label %5

5:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 80, ptr nonnull %3) #4
  call void @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEEC2IS4_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  invoke void @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEE4pushERKS1_(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 8 dereferenceable(8) %2)
          to label %.preheader unwind label %13

.preheader:                                       ; preds = %5
  %6 = call noundef zeroext i1 @_ZNKSt5queueIP3dllSt5dequeIS1_SaIS1_EEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  br i1 %6, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %.preheader, %20
  %7 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  %8 = load ptr, ptr %7, align 8, !tbaa !5
  call void @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  %9 = getelementptr inbounds i8, ptr %8, i64 8
  %10 = getelementptr inbounds i8, ptr %8, i64 16
  call void @_ZSt4swapIP3dllENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS5_ESt18is_move_assignableIS5_EEE5valueEvE4typeERS5_SE_(ptr noundef nonnull align 8 dereferenceable(8) %9, ptr noundef nonnull align 8 dereferenceable(8) %10) #4
  %11 = load ptr, ptr %9, align 8, !tbaa !9
  %.not = icmp eq ptr %11, null
  br i1 %.not, label %17, label %12

12:                                               ; preds = %.lr.ph
  invoke void @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEE4pushERKS1_(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 8 dereferenceable(8) %9)
          to label %17 unwind label %15

13:                                               ; preds = %5
  %14 = landingpad { ptr, i32 }
          cleanup
  br label %22

15:                                               ; preds = %19, %12
  %16 = landingpad { ptr, i32 }
          cleanup
  br label %22

17:                                               ; preds = %12, %.lr.ph
  %18 = load ptr, ptr %10, align 8, !tbaa !12
  %.not12 = icmp eq ptr %18, null
  br i1 %.not12, label %20, label %19

19:                                               ; preds = %17
  invoke void @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEE4pushERKS1_(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 8 dereferenceable(8) %10)
          to label %20 unwind label %15

20:                                               ; preds = %19, %17
  %21 = call noundef zeroext i1 @_ZNKSt5queueIP3dllSt5dequeIS1_SaIS1_EEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  br i1 %21, label %._crit_edge, label %.lr.ph, !llvm.loop !13

._crit_edge:                                      ; preds = %20, %.preheader
  call void @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %3) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %3) #4
  br label %23

22:                                               ; preds = %15, %13
  %.pn = phi { ptr, i32 } [ %16, %15 ], [ %14, %13 ]
  call void @_ZNSt5queueIP3dllSt5dequeIS1_SaIS1_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %3) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %3) #4
  resume { ptr, i32 } %.pn

23:                                               ; preds = %1, %._crit_edge
  ret ptr %0
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZSt4swapIP3dllENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS5_ESt18is_move_assignableIS5_EEE5valueEvE4typeERS5_SE_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3

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

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 8}
!10 = !{!"_ZTS3dll", !11, i64 0, !6, i64 8, !6, i64 16}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, i64 16}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


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