; LLVM IR from flashlight/flashlight :: flashlight/fl/runtime/Device.ll (ZNK2fl6Device4syncEv)

; 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::__detail::_Node_const_iterator" = type { %"struct.std::__detail::_Node_iterator_base" }
%"struct.std::__detail::_Node_iterator_base" = type { ptr }
%"class.fl::Device" = type { ptr, %"class.std::unordered_set", %"class.std::vector" }
%"class.std::unordered_set" = type { %"class.std::_Hashtable" }
%"class.std::_Hashtable" = type { ptr, i64, %"struct.std::__detail::_Hash_node_base", i64, %"struct.std::__detail::_Prime_rehash_policy", ptr }
%"struct.std::__detail::_Hash_node_base" = type { ptr }
%"struct.std::__detail::_Prime_rehash_policy" = type { float, i64 }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::function<void (int)>, std::allocator<std::function<void (int)>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::function<void (int)>, std::allocator<std::function<void (int)>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::function<void (int)>, std::allocator<std::function<void (int)>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::function<void (int)>, std::allocator<std::function<void (int)>>>::_Vector_impl_data" = type { ptr, 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 nounwind uwtable
declare dso_local noundef ptr @_ZNKSt19__shared_ptr_accessIN2fl6StreamELN9__gnu_cxx12_Lock_policyE2ELb0ELb0EEptEv(ptr noundef nonnull align 1 dereferenceable(1)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK2fl6Device4syncEv(ptr noundef nonnull align 8 dereferenceable(88) %0) unnamed_addr #2 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca %"struct.std::__detail::_Node_const_iterator", align 8
  %5 = alloca %"struct.std::__detail::_Node_const_iterator", align 8
  %6 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %7 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %8 = getelementptr inbounds %"class.fl::Device", ptr %7, i32 0, i32 1
  store ptr %8, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = call ptr @_ZNKSt13unordered_setISt10shared_ptrIN2fl6StreamEESt4hashIS3_ESt8equal_toIS3_ESaIS3_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(56) %9) #3
  %11 = getelementptr inbounds %"struct.std::__detail::_Node_const_iterator", ptr %4, i32 0, i32 0
  %12 = getelementptr inbounds %"struct.std::__detail::_Node_iterator_base", ptr %11, i32 0, i32 0
  store ptr %10, ptr %12, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  %14 = call ptr @_ZNKSt13unordered_setISt10shared_ptrIN2fl6StreamEESt4hashIS3_ESt8equal_toIS3_ESaIS3_EE3endEv(ptr noundef nonnull align 8 dereferenceable(56) %13) #3
  %15 = getelementptr inbounds %"struct.std::__detail::_Node_const_iterator", ptr %5, i32 0, i32 0
  %16 = getelementptr inbounds %"struct.std::__detail::_Node_iterator_base", ptr %15, i32 0, i32 0
  store ptr %14, ptr %16, align 8
  br label %17

17:                                               ; preds = %27, %1
  %18 = call noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseISt10shared_ptrIN2fl6StreamEELb0EEES7_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %5) #3
  br i1 %18, label %20, label %19

19:                                               ; preds = %17
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  br label %29

20:                                               ; preds = %17
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %21 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt8__detail20_Node_const_iteratorISt10shared_ptrIN2fl6StreamEELb1ELb0EEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #3
  store ptr %21, ptr %6, align 8, !tbaa !5
  %22 = load ptr, ptr %6, align 8, !tbaa !5
  %23 = call noundef ptr @_ZNKSt19__shared_ptr_accessIN2fl6StreamELN9__gnu_cxx12_Lock_policyE2ELb0ELb0EEptEv(ptr noundef nonnull align 1 dereferenceable(1) %22) #3
  %24 = load ptr, ptr %23, align 8, !tbaa !9
  %25 = getelementptr inbounds ptr, ptr %24, i64 5
  %26 = load ptr, ptr %25, align 8
  call void %26(ptr noundef nonnull align 8 dereferenceable(8) %23)
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %27

27:                                               ; preds = %20
  %28 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt8__detail20_Node_const_iteratorISt10shared_ptrIN2fl6StreamEELb1ELb0EEppEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #3
  br label %17

29:                                               ; preds = %19
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt13unordered_setISt10shared_ptrIN2fl6StreamEESt4hashIS3_ESt8equal_toIS3_ESaIS3_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(56)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt13unordered_setISt10shared_ptrIN2fl6StreamEESt4hashIS3_ESt8equal_toIS3_ESaIS3_EE3endEv(ptr noundef nonnull align 8 dereferenceable(56)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseISt10shared_ptrIN2fl6StreamEELb0EEES7_(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(16) ptr @_ZNKSt8__detail20_Node_const_iteratorISt10shared_ptrIN2fl6StreamEELb1ELb0EEdeEv(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 @_ZNSt8__detail20_Node_const_iteratorISt10shared_ptrIN2fl6StreamEELb1ELb0EEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"vtable pointer", !8, 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"

%"struct.std::__detail::_Node_const_iterator" = type { %"struct.std::__detail::_Node_iterator_base" }
%"struct.std::__detail::_Node_iterator_base" = 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 nounwind uwtable
declare dso_local noundef ptr @_ZNKSt19__shared_ptr_accessIN2fl6StreamELN9__gnu_cxx12_Lock_policyE2ELb0ELb0EEptEv(ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK2fl6Device4syncEv(ptr noundef nonnull align 8 dereferenceable(88) %0) unnamed_addr #2 align 2 {
  %2 = alloca %"struct.std::__detail::_Node_const_iterator", align 8
  %3 = alloca %"struct.std::__detail::_Node_const_iterator", align 8
  %4 = getelementptr inbounds i8, ptr %0, i64 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  %5 = tail call ptr @_ZNKSt13unordered_setISt10shared_ptrIN2fl6StreamEESt4hashIS3_ESt8equal_toIS3_ESaIS3_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(56) %4) #3
  store ptr %5, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %6 = tail call ptr @_ZNKSt13unordered_setISt10shared_ptrIN2fl6StreamEESt4hashIS3_ESt8equal_toIS3_ESaIS3_EE3endEv(ptr noundef nonnull align 8 dereferenceable(56) %4) #3
  store ptr %6, ptr %3, align 8
  %7 = call noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseISt10shared_ptrIN2fl6StreamEELb0EEES7_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #3
  br i1 %7, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %1
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  ret void

.lr.ph:                                           ; preds = %1, %.lr.ph
  %8 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt8__detail20_Node_const_iteratorISt10shared_ptrIN2fl6StreamEELb1ELb0EEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #3
  %9 = call noundef ptr @_ZNKSt19__shared_ptr_accessIN2fl6StreamELN9__gnu_cxx12_Lock_policyE2ELb0ELb0EEptEv(ptr noundef nonnull align 1 dereferenceable(1) %8) #3
  %10 = load ptr, ptr %9, align 8, !tbaa !5
  %11 = getelementptr inbounds i8, ptr %10, i64 40
  %12 = load ptr, ptr %11, align 8
  call void %12(ptr noundef nonnull align 8 dereferenceable(8) %9)
  %13 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt8__detail20_Node_const_iteratorISt10shared_ptrIN2fl6StreamEELb1ELb0EEppEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #3
  %14 = call noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseISt10shared_ptrIN2fl6StreamEELb0EEES7_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #3
  br i1 %14, label %.lr.ph, label %._crit_edge
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt13unordered_setISt10shared_ptrIN2fl6StreamEESt4hashIS3_ESt8equal_toIS3_ESaIS3_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(56)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt13unordered_setISt10shared_ptrIN2fl6StreamEESt4hashIS3_ESt8equal_toIS3_ESaIS3_EE3endEv(ptr noundef nonnull align 8 dereferenceable(56)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseISt10shared_ptrIN2fl6StreamEELb0EEES7_(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(16) ptr @_ZNKSt8__detail20_Node_const_iteratorISt10shared_ptrIN2fl6StreamEELb1ELb0EEdeEv(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 @_ZNSt8__detail20_Node_const_iteratorISt10shared_ptrIN2fl6StreamEELb1ELb0EEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

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 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}


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