; LLVM IR from VTIvanov20/eight-ball-pool :: src/drawable.ll (ZN15DrawableManager17GetDrawableFromIDEi)

; 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::__cxx11::list" = type { %"class.std::__cxx11::_List_base" }
%"class.std::__cxx11::_List_base" = type { %"struct.std::__cxx11::_List_base<DrawableManager::Drawable *, std::allocator<DrawableManager::Drawable *>>::_List_impl" }
%"struct.std::__cxx11::_List_base<DrawableManager::Drawable *, std::allocator<DrawableManager::Drawable *>>::_List_impl" = type { %"struct.std::__detail::_List_node_header" }
%"struct.std::__detail::_List_node_header" = type { %"struct.std::__detail::_List_node_base", i64 }
%"struct.std::__detail::_List_node_base" = type { ptr, ptr }
%"struct.std::_List_iterator" = type { ptr }

@_ZN15DrawableManager12drawablePoolB5cxx11E = external dso_local global %"class.std::__cxx11::list", align 8

; 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 nounwind uwtable
declare dso_local ptr @_ZNSt7__cxx114listIPN15DrawableManager8DrawableESaIS3_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt7__cxx114listIPN15DrawableManager8DrawableESaIS3_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt14_List_iteratorIPN15DrawableManager8DrawableEES5_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14_List_iteratorIPN15DrawableManager8DrawableEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt14_List_iteratorIPN15DrawableManager8DrawableEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN15DrawableManager8Drawable5GetIDEv(ptr noundef nonnull align 8 dereferenceable(12)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZN15DrawableManager17GetDrawableFromIDEi(i32 noundef %0) #2 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca %"struct.std::_List_iterator", align 8
  %6 = alloca %"struct.std::_List_iterator", align 8
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  store i32 %0, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  store ptr @_ZN15DrawableManager12drawablePoolB5cxx11E, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %9 = call ptr @_ZNSt7__cxx114listIPN15DrawableManager8DrawableESaIS3_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @_ZN15DrawableManager12drawablePoolB5cxx11E) #3
  %10 = getelementptr inbounds %"struct.std::_List_iterator", ptr %5, i32 0, i32 0
  store ptr %9, ptr %10, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %11 = call ptr @_ZNSt7__cxx114listIPN15DrawableManager8DrawableESaIS3_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @_ZN15DrawableManager12drawablePoolB5cxx11E) #3
  %12 = getelementptr inbounds %"struct.std::_List_iterator", ptr %6, i32 0, i32 0
  store ptr %11, ptr %12, align 8
  br label %13

13:                                               ; preds = %30, %1
  %14 = call noundef zeroext i1 @_ZStneRKSt14_List_iteratorIPN15DrawableManager8DrawableEES5_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %6) #3
  br i1 %14, label %16, label %15

15:                                               ; preds = %13
  store i32 2, ptr %7, align 4
  br label %32

16:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %17 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14_List_iteratorIPN15DrawableManager8DrawableEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #3
  store ptr %17, ptr %8, align 8, !tbaa !9
  %18 = load ptr, ptr %8, align 8, !tbaa !9
  %19 = load ptr, ptr %18, align 8, !tbaa !9
  %20 = call noundef i32 @_ZN15DrawableManager8Drawable5GetIDEv(ptr noundef nonnull align 8 dereferenceable(12) %19)
  %21 = load i32, ptr %3, align 4, !tbaa !5
  %22 = icmp eq i32 %20, %21
  br i1 %22, label %23, label %26

23:                                               ; preds = %16
  %24 = load ptr, ptr %8, align 8, !tbaa !9
  %25 = load ptr, ptr %24, align 8, !tbaa !9
  store ptr %25, ptr %2, align 8
  store i32 1, ptr %7, align 4
  br label %27

26:                                               ; preds = %16
  store i32 0, ptr %7, align 4
  br label %27

27:                                               ; preds = %26, %23
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  %28 = load i32, ptr %7, align 4
  switch i32 %28, label %32 [
    i32 0, label %29
  ]

29:                                               ; preds = %27
  br label %30

30:                                               ; preds = %29
  %31 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt14_List_iteratorIPN15DrawableManager8DrawableEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #3
  br label %13

32:                                               ; preds = %27, %15
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  %33 = load i32, ptr %7, align 4
  switch i32 %33, label %37 [
    i32 2, label %34
    i32 1, label %35
  ]

34:                                               ; preds = %32
  store ptr null, ptr %2, align 8
  br label %35

35:                                               ; preds = %34, %32
  %36 = load ptr, ptr %2, align 8
  ret ptr %36

37:                                               ; preds = %32
  unreachable
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { 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}


; 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::__cxx11::list" = type { %"class.std::__cxx11::_List_base" }
%"class.std::__cxx11::_List_base" = type { %"struct.std::__cxx11::_List_base<DrawableManager::Drawable *, std::allocator<DrawableManager::Drawable *>>::_List_impl" }
%"struct.std::__cxx11::_List_base<DrawableManager::Drawable *, std::allocator<DrawableManager::Drawable *>>::_List_impl" = type { %"struct.std::__detail::_List_node_header" }
%"struct.std::__detail::_List_node_header" = type { %"struct.std::__detail::_List_node_base", i64 }
%"struct.std::__detail::_List_node_base" = type { ptr, ptr }
%"struct.std::_List_iterator" = type { ptr }

@_ZN15DrawableManager12drawablePoolB5cxx11E = external dso_local global %"class.std::__cxx11::list", align 8

; 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 nounwind uwtable
declare dso_local ptr @_ZNSt7__cxx114listIPN15DrawableManager8DrawableESaIS3_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt7__cxx114listIPN15DrawableManager8DrawableESaIS3_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt14_List_iteratorIPN15DrawableManager8DrawableEES5_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14_List_iteratorIPN15DrawableManager8DrawableEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt14_List_iteratorIPN15DrawableManager8DrawableEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN15DrawableManager8Drawable5GetIDEv(ptr noundef nonnull align 8 dereferenceable(12)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef ptr @_ZN15DrawableManager17GetDrawableFromIDEi(i32 noundef %0) local_unnamed_addr #1 {
  %2 = alloca %"struct.std::_List_iterator", align 8
  %3 = alloca %"struct.std::_List_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #2
  %4 = tail call ptr @_ZNSt7__cxx114listIPN15DrawableManager8DrawableESaIS3_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @_ZN15DrawableManager12drawablePoolB5cxx11E) #2
  store ptr %4, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #2
  %5 = tail call ptr @_ZNSt7__cxx114listIPN15DrawableManager8DrawableESaIS3_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @_ZN15DrawableManager12drawablePoolB5cxx11E) #2
  store ptr %5, ptr %3, align 8
  %6 = call noundef zeroext i1 @_ZStneRKSt14_List_iteratorIPN15DrawableManager8DrawableEES5_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #2
  br i1 %6, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %1, %11
  %7 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14_List_iteratorIPN15DrawableManager8DrawableEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #2
  %8 = load ptr, ptr %7, align 8, !tbaa !5
  %9 = call noundef i32 @_ZN15DrawableManager8Drawable5GetIDEv(ptr noundef nonnull align 8 dereferenceable(12) %8)
  %.not = icmp eq i32 %9, %0
  %10 = load ptr, ptr %7, align 8
  br i1 %.not, label %._crit_edge, label %11

11:                                               ; preds = %.lr.ph
  %12 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt14_List_iteratorIPN15DrawableManager8DrawableEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #2
  %13 = call noundef zeroext i1 @_ZStneRKSt14_List_iteratorIPN15DrawableManager8DrawableEES5_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #2
  br i1 %13, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %11, %1
  %spec.select = phi ptr [ null, %1 ], [ null, %11 ], [ %10, %.lr.ph ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #2
  ret ptr %spec.select
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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"}


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