; LLVM IR from VTIvanov20/eight-ball-pool :: src/main_menu.ll (ZN8MainMenu6UpdateEv)

; 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"

%"struct.std::_List_iterator" = type { ptr }
%class.MainMenu = type { %"class.DrawableManager::Drawable.base", %"class.std::__cxx11::list" }
%"class.DrawableManager::Drawable.base" = type <{ ptr, i32 }>
%"class.std::__cxx11::list" = type { %"class.std::__cxx11::_List_base" }
%"class.std::__cxx11::_List_base" = type { %"struct.std::__cxx11::_List_base<Button *, std::allocator<Button *>>::_List_impl" }
%"struct.std::__cxx11::_List_base<Button *, std::allocator<Button *>>::_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 }

; 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
define dso_local void @_ZN8MainMenu6UpdateEv(ptr noundef nonnull align 8 dereferenceable(40) %0) unnamed_addr #1 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca %"struct.std::_List_iterator", align 8
  %5 = alloca %"struct.std::_List_iterator", align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %6 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  store i32 0, ptr %3, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #4
  %7 = getelementptr inbounds %class.MainMenu, ptr %6, i32 0, i32 1
  %8 = call ptr @_ZNSt7__cxx114listIP6ButtonSaIS2_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %7) #4
  %9 = getelementptr inbounds %"struct.std::_List_iterator", ptr %4, i32 0, i32 0
  store ptr %8, ptr %9, align 8
  br label %10

10:                                               ; preds = %30, %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  %11 = getelementptr inbounds %class.MainMenu, ptr %6, i32 0, i32 1
  %12 = call ptr @_ZNSt7__cxx114listIP6ButtonSaIS2_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %11) #4
  %13 = getelementptr inbounds %"struct.std::_List_iterator", ptr %5, i32 0, i32 0
  store ptr %12, ptr %13, align 8
  %14 = call noundef zeroext i1 @_ZStneRKSt14_List_iteratorIP6ButtonES4_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  br i1 %14, label %16, label %15

15:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  br label %32

16:                                               ; preds = %10
  %17 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14_List_iteratorIP6ButtonEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #4
  %18 = load ptr, ptr %17, align 8, !tbaa !5
  %19 = call noundef zeroext i1 @_ZN6Button9IsClickedEv(ptr noundef nonnull align 8 dereferenceable(112) %18)
  br i1 %19, label %20, label %27

20:                                               ; preds = %16
  %21 = load i32, ptr %3, align 4, !tbaa !9
  switch i32 %21, label %25 [
    i32 0, label %22
    i32 1, label %23
    i32 2, label %24
  ]

22:                                               ; preds = %20
  call void @_ZN11GameManager11ChangeSceneENS_5SceneE(i32 noundef 2)
  br label %26

23:                                               ; preds = %20
  call void @_ZN11GameManager11ChangeSceneENS_5SceneE(i32 noundef 1)
  br label %26

24:                                               ; preds = %20
  call void @_ZN11GameManager4QuitEv()
  br label %26

25:                                               ; preds = %20
  br label %26

26:                                               ; preds = %25, %24, %23, %22
  br label %27

27:                                               ; preds = %26, %16
  %28 = load i32, ptr %3, align 4, !tbaa !9
  %29 = add nsw i32 %28, 1
  store i32 %29, ptr %3, align 4, !tbaa !9
  br label %30

30:                                               ; preds = %27
  %31 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt14_List_iteratorIP6ButtonEppEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #4
  br label %10, !llvm.loop !11

32:                                               ; preds = %15
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt7__cxx114listIP6ButtonSaIS2_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt14_List_iteratorIP6ButtonES4_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt7__cxx114listIP6ButtonSaIS2_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14_List_iteratorIP6ButtonEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

declare noundef zeroext i1 @_ZN6Button9IsClickedEv(ptr noundef nonnull align 8 dereferenceable(112)) #3

declare void @_ZN11GameManager11ChangeSceneENS_5SceneE(i32 noundef) #3

declare void @_ZN11GameManager4QuitEv() #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt14_List_iteratorIP6ButtonEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

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 = { "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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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"

%"struct.std::_List_iterator" = type { 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
define dso_local void @_ZN8MainMenu6UpdateEv(ptr noundef nonnull align 8 dereferenceable(40) %0) unnamed_addr #1 align 2 {
  %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) #4
  %4 = getelementptr inbounds i8, ptr %0, i64 16
  %5 = tail call ptr @_ZNSt7__cxx114listIP6ButtonSaIS2_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #4
  store ptr %5, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  %6 = tail call ptr @_ZNSt7__cxx114listIP6ButtonSaIS2_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #4
  store ptr %6, ptr %3, align 8
  %7 = call noundef zeroext i1 @_ZStneRKSt14_List_iteratorIP6ButtonES4_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  br i1 %7, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %15, %1
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #4
  ret void

.lr.ph:                                           ; preds = %1, %15
  %.02 = phi i32 [ %16, %15 ], [ 0, %1 ]
  %8 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14_List_iteratorIP6ButtonEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #4
  %9 = load ptr, ptr %8, align 8, !tbaa !5
  %10 = call noundef zeroext i1 @_ZN6Button9IsClickedEv(ptr noundef nonnull align 8 dereferenceable(112) %9)
  br i1 %10, label %11, label %15

11:                                               ; preds = %.lr.ph
  switch i32 %.02, label %15 [
    i32 0, label %12
    i32 1, label %13
    i32 2, label %14
  ]

12:                                               ; preds = %11
  call void @_ZN11GameManager11ChangeSceneENS_5SceneE(i32 noundef 2)
  br label %15

13:                                               ; preds = %11
  call void @_ZN11GameManager11ChangeSceneENS_5SceneE(i32 noundef 1)
  br label %15

14:                                               ; preds = %11
  call void @_ZN11GameManager4QuitEv()
  br label %15

15:                                               ; preds = %12, %13, %14, %11, %.lr.ph
  %16 = add nuw nsw i32 %.02, 1
  %17 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt14_List_iteratorIP6ButtonEppEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  %18 = call ptr @_ZNSt7__cxx114listIP6ButtonSaIS2_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #4
  store ptr %18, ptr %3, align 8
  %19 = call noundef zeroext i1 @_ZStneRKSt14_List_iteratorIP6ButtonES4_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  br i1 %19, label %.lr.ph, label %._crit_edge, !llvm.loop !9
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt7__cxx114listIP6ButtonSaIS2_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt14_List_iteratorIP6ButtonES4_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt7__cxx114listIP6ButtonSaIS2_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14_List_iteratorIP6ButtonEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

declare noundef zeroext i1 @_ZN6Button9IsClickedEv(ptr noundef nonnull align 8 dereferenceable(112)) local_unnamed_addr #3

declare void @_ZN11GameManager11ChangeSceneENS_5SceneE(i32 noundef) local_unnamed_addr #3

declare void @_ZN11GameManager4QuitEv() local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt14_List_iteratorIP6ButtonEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

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 = { "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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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