; LLVM IR from ThePhysicsGuys/Physics3D :: engine/layer (layerStack)

; 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::reverse_iterator" = type { %"class.__gnu_cxx::__normal_iterator" }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%"class.P3D::Engine::Layer" = type <{ ptr, ptr, %"class.std::__cxx11::basic_string", i8, [7 x i8] }>
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"struct.P3D::Engine::Event" = type <{ ptr, i8, [7 x i8] }>

; 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 @_ZN3P3D6Engine10LayerStack7onEventERNS0_8RegistryImEERNS0_5EventE(ptr noundef nonnull align 8 dereferenceable(28) %0, ptr noundef nonnull align 1 %1, ptr noundef nonnull align 8 dereferenceable(9) %2) #1 align 2 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca %"class.std::reverse_iterator", align 8
  %8 = alloca %"class.std::reverse_iterator", align 8
  %9 = alloca i32, align 4
  %10 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  %11 = load ptr, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  call void @_ZN3P3D6Engine10LayerStack6rbeginEv(ptr dead_on_unwind writable sret(%"class.std::reverse_iterator") align 8 %7, ptr noundef nonnull align 8 dereferenceable(28) %11)
  br label %12

12:                                               ; preds = %41, %3
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  call void @_ZN3P3D6Engine10LayerStack4rendEv(ptr dead_on_unwind writable sret(%"class.std::reverse_iterator") align 8 %8, ptr noundef nonnull align 8 dereferenceable(28) %11)
  %13 = call noundef zeroext i1 @_ZStneIN9__gnu_cxx17__normal_iteratorIPPN3P3D6Engine5LayerESt6vectorIS5_SaIS5_EEEEEbRKSt16reverse_iteratorIT_ESF_(ptr noundef nonnull align 8 dereferenceable(8) %7, ptr noundef nonnull align 8 dereferenceable(8) %8)
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  br i1 %13, label %15, label %14

14:                                               ; preds = %12
  store i32 2, ptr %9, align 4
  br label %43

15:                                               ; preds = %12
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #4
  %16 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt16reverse_iteratorIN9__gnu_cxx17__normal_iteratorIPPN3P3D6Engine5LayerESt6vectorIS5_SaIS5_EEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %7)
  %17 = load ptr, ptr %16, align 8, !tbaa !5
  store ptr %17, ptr %10, align 8, !tbaa !5
  %18 = load ptr, ptr %10, align 8, !tbaa !5
  %19 = getelementptr inbounds %"class.P3D::Engine::Layer", ptr %18, i32 0, i32 3
  %20 = load i8, ptr %19, align 8, !tbaa !9
  %21 = sext i8 %20 to i32
  %22 = and i32 %21, 5
  %23 = icmp ne i32 %22, 0
  br i1 %23, label %24, label %25

24:                                               ; preds = %15
  store i32 4, ptr %9, align 4
  br label %38

25:                                               ; preds = %15
  %26 = load ptr, ptr %10, align 8, !tbaa !5
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  %28 = load ptr, ptr %6, align 8, !tbaa !5
  %29 = load ptr, ptr %26, align 8, !tbaa !14
  %30 = getelementptr inbounds ptr, ptr %29, i64 3
  %31 = load ptr, ptr %30, align 8
  call void %31(ptr noundef nonnull align 8 dereferenceable(49) %26, ptr noundef nonnull align 1 %27, ptr noundef nonnull align 8 dereferenceable(9) %28)
  %32 = load ptr, ptr %6, align 8, !tbaa !5
  %33 = getelementptr inbounds %"struct.P3D::Engine::Event", ptr %32, i32 0, i32 1
  %34 = load i8, ptr %33, align 8, !tbaa !16, !range !19, !noundef !20
  %35 = trunc i8 %34 to i1
  br i1 %35, label %36, label %37

36:                                               ; preds = %25
  store i32 1, ptr %9, align 4
  br label %38

37:                                               ; preds = %25
  store i32 0, ptr %9, align 4
  br label %38

38:                                               ; preds = %37, %36, %24
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  %39 = load i32, ptr %9, align 4
  switch i32 %39, label %43 [
    i32 0, label %40
    i32 4, label %41
  ]

40:                                               ; preds = %38
  br label %41

41:                                               ; preds = %40, %38
  %42 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt16reverse_iteratorIN9__gnu_cxx17__normal_iteratorIPPN3P3D6Engine5LayerESt6vectorIS5_SaIS5_EEEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %7)
  br label %12, !llvm.loop !21

43:                                               ; preds = %38, %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  %44 = load i32, ptr %9, align 4
  switch i32 %44, label %46 [
    i32 2, label %45
    i32 1, label %45
  ]

45:                                               ; preds = %43, %43
  ret void

46:                                               ; preds = %43
  unreachable
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN3P3D6Engine10LayerStack6rbeginEv(ptr dead_on_unwind noalias writable sret(%"class.std::reverse_iterator") align 8, ptr noundef nonnull align 8 dereferenceable(28)) #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZStneIN9__gnu_cxx17__normal_iteratorIPPN3P3D6Engine5LayerESt6vectorIS5_SaIS5_EEEEEbRKSt16reverse_iteratorIT_ESF_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN3P3D6Engine10LayerStack4rendEv(ptr dead_on_unwind noalias writable sret(%"class.std::reverse_iterator") align 8, ptr noundef nonnull align 8 dereferenceable(28)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt16reverse_iteratorIN9__gnu_cxx17__normal_iteratorIPPN3P3D6Engine5LayerESt6vectorIS5_SaIS5_EEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt16reverse_iteratorIN9__gnu_cxx17__normal_iteratorIPPN3P3D6Engine5LayerESt6vectorIS5_SaIS5_EEEEEppEv(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 = { 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 #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, !7, i64 48}
!10 = !{!"_ZTSN3P3D6Engine5LayerE", !6, i64 8, !11, i64 16, !7, i64 48}
!11 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !12, i64 0, !13, i64 8, !7, i64 16}
!12 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !6, i64 0}
!13 = !{!"long", !7, i64 0}
!14 = !{!15, !15, i64 0}
!15 = !{!"vtable pointer", !8, i64 0}
!16 = !{!17, !18, i64 8}
!17 = !{!"_ZTSN3P3D6Engine5EventE", !18, i64 8}
!18 = !{!"bool", !7, i64 0}
!19 = !{i8 0, i8 2}
!20 = !{}
!21 = distinct !{!21, !22}
!22 = !{!"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::reverse_iterator" = type { %"class.__gnu_cxx::__normal_iterator" }
%"class.__gnu_cxx::__normal_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 @_ZN3P3D6Engine10LayerStack7onEventERNS0_8RegistryImEERNS0_5EventE(ptr noundef nonnull align 8 dereferenceable(28) %0, ptr noundef nonnull align 1 %1, ptr noundef nonnull align 8 dereferenceable(9) %2) local_unnamed_addr #1 align 2 {
  %4 = alloca %"class.std::reverse_iterator", align 8
  %5 = alloca %"class.std::reverse_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  call void @_ZN3P3D6Engine10LayerStack6rbeginEv(ptr dead_on_unwind nonnull writable sret(%"class.std::reverse_iterator") align 8 %4, ptr noundef nonnull align 8 dereferenceable(28) %0)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #4
  call void @_ZN3P3D6Engine10LayerStack4rendEv(ptr dead_on_unwind nonnull writable sret(%"class.std::reverse_iterator") align 8 %5, ptr noundef nonnull align 8 dereferenceable(28) %0)
  %6 = call noundef zeroext i1 @_ZStneIN9__gnu_cxx17__normal_iteratorIPPN3P3D6Engine5LayerESt6vectorIS5_SaIS5_EEEEEbRKSt16reverse_iteratorIT_ESF_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %5)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  br i1 %6, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %3
  %7 = getelementptr inbounds i8, ptr %2, i64 8
  br label %8

8:                                                ; preds = %.lr.ph, %20
  %9 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt16reverse_iteratorIN9__gnu_cxx17__normal_iteratorIPPN3P3D6Engine5LayerESt6vectorIS5_SaIS5_EEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %4)
  %10 = load ptr, ptr %9, align 8, !tbaa !5
  %11 = getelementptr inbounds i8, ptr %10, i64 48
  %12 = load i8, ptr %11, align 8, !tbaa !9
  %13 = and i8 %12, 5
  %.not = icmp eq i8 %13, 0
  br i1 %.not, label %14, label %20

14:                                               ; preds = %8
  %15 = load ptr, ptr %10, align 8, !tbaa !14
  %16 = getelementptr inbounds i8, ptr %15, i64 24
  %17 = load ptr, ptr %16, align 8
  call void %17(ptr noundef nonnull align 8 dereferenceable(49) %10, ptr noundef nonnull align 1 %1, ptr noundef nonnull align 8 dereferenceable(9) %2)
  %18 = load i8, ptr %7, align 8, !tbaa !16, !range !19, !noundef !20
  %19 = trunc nuw i8 %18 to i1
  br i1 %19, label %._crit_edge, label %20

20:                                               ; preds = %8, %14
  %21 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt16reverse_iteratorIN9__gnu_cxx17__normal_iteratorIPPN3P3D6Engine5LayerESt6vectorIS5_SaIS5_EEEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %4)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #4
  call void @_ZN3P3D6Engine10LayerStack4rendEv(ptr dead_on_unwind nonnull writable sret(%"class.std::reverse_iterator") align 8 %5, ptr noundef nonnull align 8 dereferenceable(28) %0)
  %22 = call noundef zeroext i1 @_ZStneIN9__gnu_cxx17__normal_iteratorIPPN3P3D6Engine5LayerESt6vectorIS5_SaIS5_EEEEEbRKSt16reverse_iteratorIT_ESF_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %5)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  br i1 %22, label %8, label %._crit_edge, !llvm.loop !21

._crit_edge:                                      ; preds = %20, %14, %3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN3P3D6Engine10LayerStack6rbeginEv(ptr dead_on_unwind noalias writable sret(%"class.std::reverse_iterator") align 8, ptr noundef nonnull align 8 dereferenceable(28)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZStneIN9__gnu_cxx17__normal_iteratorIPPN3P3D6Engine5LayerESt6vectorIS5_SaIS5_EEEEEbRKSt16reverse_iteratorIT_ESF_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN3P3D6Engine10LayerStack4rendEv(ptr dead_on_unwind noalias writable sret(%"class.std::reverse_iterator") align 8, ptr noundef nonnull align 8 dereferenceable(28)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt16reverse_iteratorIN9__gnu_cxx17__normal_iteratorIPPN3P3D6Engine5LayerESt6vectorIS5_SaIS5_EEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt16reverse_iteratorIN9__gnu_cxx17__normal_iteratorIPPN3P3D6Engine5LayerESt6vectorIS5_SaIS5_EEEEEppEv(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 = { 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 #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, !7, i64 48}
!10 = !{!"_ZTSN3P3D6Engine5LayerE", !6, i64 8, !11, i64 16, !7, i64 48}
!11 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !12, i64 0, !13, i64 8, !7, i64 16}
!12 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !6, i64 0}
!13 = !{!"long", !7, i64 0}
!14 = !{!15, !15, i64 0}
!15 = !{!"vtable pointer", !8, i64 0}
!16 = !{!17, !18, i64 8}
!17 = !{!"_ZTSN3P3D6Engine5EventE", !18, i64 8}
!18 = !{!"bool", !7, i64 0}
!19 = !{i8 0, i8 2}
!20 = !{}
!21 = distinct !{!21, !22}
!22 = !{!"llvm.loop.mustprogress"}


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