; LLVM IR from NervanaSystems/ngraph :: src/ngraph/node.ll (ZN6ngraph4Node24clear_control_dependentsEv)

; 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::shared_ptr.74" = type { %"class.std::__shared_ptr.75" }
%"class.std::__shared_ptr.75" = type { ptr, %"class.std::__shared_count" }
%"class.std::__shared_count" = type { ptr }
%"class.__gnu_cxx::__normal_iterator.126" = type { ptr }
%"class.ngraph::Node" = type { ptr, %"class.std::enable_shared_from_this", %"class.std::unordered_set", %"class.std::unordered_set", %"class.std::vector", %"class.std::vector.5", %"class.std::__cxx11::basic_string", i64, %"class.std::__cxx11::basic_string", %"class.std::__cxx11::basic_string", %"class.std::unordered_set.13", %"class.std::set", %"class.std::deque", %"class.std::deque.39", %"class.std::unordered_map", i32, %"class.std::shared_ptr", %"class.std::map" }
%"class.std::enable_shared_from_this" = type { %"class.std::weak_ptr" }
%"class.std::weak_ptr" = type { %"class.std::__weak_ptr" }
%"class.std::__weak_ptr" = type { ptr, %"class.std::__weak_count" }
%"class.std::__weak_count" = type { ptr }
%"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<ngraph::Node *, std::allocator<ngraph::Node *>>::_Vector_impl" }
%"struct.std::_Vector_base<ngraph::Node *, std::allocator<ngraph::Node *>>::_Vector_impl" = type { %"struct.std::_Vector_base<ngraph::Node *, std::allocator<ngraph::Node *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<ngraph::Node *, std::allocator<ngraph::Node *>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.5" = type { %"struct.std::_Vector_base.6" }
%"struct.std::_Vector_base.6" = type { %"struct.std::_Vector_base<std::shared_ptr<ngraph::Node>, std::allocator<std::shared_ptr<ngraph::Node>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::shared_ptr<ngraph::Node>, std::allocator<std::shared_ptr<ngraph::Node>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::shared_ptr<ngraph::Node>, std::allocator<std::shared_ptr<ngraph::Node>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::shared_ptr<ngraph::Node>, std::allocator<std::shared_ptr<ngraph::Node>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"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] }
%"class.std::unordered_set.13" = type { %"class.std::_Hashtable.14" }
%"class.std::_Hashtable.14" = type { ptr, i64, %"struct.std::__detail::_Hash_node_base", i64, %"struct.std::__detail::_Prime_rehash_policy", ptr }
%"class.std::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<std::shared_ptr<ngraph::Node>, std::shared_ptr<ngraph::Node>, std::_Identity<std::shared_ptr<ngraph::Node>>, std::less<std::shared_ptr<ngraph::Node>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::shared_ptr<ngraph::Node>, std::shared_ptr<ngraph::Node>, std::_Identity<std::shared_ptr<ngraph::Node>>, std::less<std::shared_ptr<ngraph::Node>>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<ngraph::descriptor::Input, std::allocator<ngraph::descriptor::Input>>::_Deque_impl" }
%"struct.std::_Deque_base<ngraph::descriptor::Input, std::allocator<ngraph::descriptor::Input>>::_Deque_impl" = type { %"struct.std::_Deque_base<ngraph::descriptor::Input, std::allocator<ngraph::descriptor::Input>>::_Deque_impl_data" }
%"struct.std::_Deque_base<ngraph::descriptor::Input, std::allocator<ngraph::descriptor::Input>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator", %"struct.std::_Deque_iterator" }
%"struct.std::_Deque_iterator" = type { ptr, ptr, ptr, ptr }
%"class.std::deque.39" = type { %"class.std::_Deque_base.40" }
%"class.std::_Deque_base.40" = type { %"struct.std::_Deque_base<ngraph::descriptor::Output, std::allocator<ngraph::descriptor::Output>>::_Deque_impl" }
%"struct.std::_Deque_base<ngraph::descriptor::Output, std::allocator<ngraph::descriptor::Output>>::_Deque_impl" = type { %"struct.std::_Deque_base<ngraph::descriptor::Output, std::allocator<ngraph::descriptor::Output>>::_Deque_impl_data" }
%"struct.std::_Deque_base<ngraph::descriptor::Output, std::allocator<ngraph::descriptor::Output>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator.44", %"struct.std::_Deque_iterator.44" }
%"struct.std::_Deque_iterator.44" = type { ptr, ptr, ptr, ptr }
%"class.std::unordered_map" = type { %"class.std::_Hashtable.45" }
%"class.std::_Hashtable.45" = type { ptr, i64, %"struct.std::__detail::_Hash_node_base", i64, %"struct.std::__detail::_Prime_rehash_policy", ptr }
%"class.std::shared_ptr" = type { %"class.std::__shared_ptr" }
%"class.std::__shared_ptr" = type { ptr, %"class.std::__shared_count" }
%"class.std::map" = type { %"class.std::_Rb_tree.64" }
%"class.std::_Rb_tree.64" = type { %"struct.std::_Rb_tree<std::__cxx11::basic_string<char>, std::pair<const std::__cxx11::basic_string<char>, std::shared_ptr<ngraph::Variant>>, std::_Select1st<std::pair<const std::__cxx11::basic_string<char>, std::shared_ptr<ngraph::Variant>>>, std::less<std::__cxx11::basic_string<char>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::__cxx11::basic_string<char>, std::pair<const std::__cxx11::basic_string<char>, std::shared_ptr<ngraph::Variant>>, std::_Select1st<std::pair<const std::__cxx11::basic_string<char>, std::shared_ptr<ngraph::Variant>>>, std::less<std::__cxx11::basic_string<char>>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }

declare i32 @__gxx_personality_v0(...)

; 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 @_ZNSt23enable_shared_from_thisIN6ngraph4NodeEE16shared_from_thisEv(ptr dead_on_unwind noalias writable sret(%"class.std::shared_ptr.74") align 8, ptr noundef nonnull align 8 dereferenceable(16)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt6vectorIPN6ngraph4NodeESaIS2_EE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIPN6ngraph4NodeESaIS2_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN6ngraph4Node24clear_control_dependentsEv(ptr noundef nonnull align 8 dereferenceable(680) %0) #1 align 2 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca %"class.__gnu_cxx::__normal_iterator.126", align 8
  %4 = alloca %"class.std::shared_ptr.74", align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  %7 = load ptr, ptr %2, align 8
  br label %8

8:                                                ; preds = %19, %1
  %9 = getelementptr inbounds %"class.ngraph::Node", ptr %7, i32 0, i32 4
  %10 = call noundef zeroext i1 @_ZNKSt6vectorIPN6ngraph4NodeESaIS2_EE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24) %9) #3
  %11 = xor i1 %10, true
  br i1 %11, label %12, label %24

12:                                               ; preds = %8
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %13 = getelementptr inbounds %"class.ngraph::Node", ptr %7, i32 0, i32 4
  %14 = call ptr @_ZNSt6vectorIPN6ngraph4NodeESaIS2_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %13) #3
  %15 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.126", ptr %3, i32 0, i32 0
  store ptr %14, ptr %15, align 8
  %16 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPPN6ngraph4NodeESt6vectorIS3_SaIS3_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #3
  %17 = load ptr, ptr %16, align 8, !tbaa !5
  %18 = getelementptr inbounds i8, ptr %7, i64 8
  call void @_ZNSt23enable_shared_from_thisIN6ngraph4NodeEE16shared_from_thisEv(ptr dead_on_unwind writable sret(%"class.std::shared_ptr.74") align 8 %4, ptr noundef nonnull align 8 dereferenceable(16) %18)
  invoke void @_ZN6ngraph4Node25remove_control_dependencyESt10shared_ptrIS0_E(ptr noundef nonnull align 8 dereferenceable(680) %17, ptr noundef %4)
          to label %19 unwind label %20

19:                                               ; preds = %12
  call void @_ZNSt12__shared_ptrIN6ngraph4NodeELN9__gnu_cxx12_Lock_policyE2EED2Ev(ptr noundef nonnull align 8 dereferenceable(16) %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  br label %8, !llvm.loop !9

20:                                               ; preds = %12
  %21 = landingpad { ptr, i32 }
          cleanup
  %22 = extractvalue { ptr, i32 } %21, 0
  store ptr %22, ptr %5, align 8
  %23 = extractvalue { ptr, i32 } %21, 1
  store i32 %23, ptr %6, align 4
  call void @_ZNSt12__shared_ptrIN6ngraph4NodeELN9__gnu_cxx12_Lock_policyE2EED2Ev(ptr noundef nonnull align 8 dereferenceable(16) %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  br label %25

24:                                               ; preds = %8
  ret void

25:                                               ; preds = %20
  %26 = load ptr, ptr %5, align 8
  %27 = load i32, ptr %6, align 4
  %28 = insertvalue { ptr, i32 } poison, ptr %26, 0
  %29 = insertvalue { ptr, i32 } %28, i32 %27, 1
  resume { ptr, i32 } %29
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN6ngraph4Node25remove_control_dependencyESt10shared_ptrIS0_E(ptr noundef nonnull align 8 dereferenceable(680), ptr noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPPN6ngraph4NodeESt6vectorIS3_SaIS3_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt12__shared_ptrIN6ngraph4NodeELN9__gnu_cxx12_Lock_policyE2EED2Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #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 = { 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"}


; 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::shared_ptr.74" = type { %"class.std::__shared_ptr.75" }
%"class.std::__shared_ptr.75" = type { ptr, %"class.std::__shared_count" }
%"class.std::__shared_count" = type { ptr }
%"class.__gnu_cxx::__normal_iterator.126" = type { ptr }

declare i32 @__gxx_personality_v0(...)

; 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 @_ZNSt23enable_shared_from_thisIN6ngraph4NodeEE16shared_from_thisEv(ptr dead_on_unwind noalias writable sret(%"class.std::shared_ptr.74") align 8, ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt6vectorIPN6ngraph4NodeESaIS2_EE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIPN6ngraph4NodeESaIS2_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN6ngraph4Node24clear_control_dependentsEv(ptr noundef nonnull align 8 dereferenceable(680) %0) local_unnamed_addr #1 align 2 personality ptr @__gxx_personality_v0 {
  %2 = alloca %"class.__gnu_cxx::__normal_iterator.126", align 8
  %3 = alloca %"class.std::shared_ptr.74", align 8
  %4 = getelementptr inbounds i8, ptr %0, i64 136
  %5 = tail call noundef zeroext i1 @_ZNKSt6vectorIPN6ngraph4NodeESaIS2_EE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #3
  br i1 %5, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1
  %6 = getelementptr inbounds i8, ptr %0, i64 8
  br label %7

7:                                                ; preds = %.lr.ph, %11
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  %8 = call ptr @_ZNSt6vectorIPN6ngraph4NodeESaIS2_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #3
  store ptr %8, ptr %2, align 8
  %9 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPPN6ngraph4NodeESt6vectorIS3_SaIS3_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #3
  %10 = load ptr, ptr %9, align 8, !tbaa !5
  call void @_ZNSt23enable_shared_from_thisIN6ngraph4NodeEE16shared_from_thisEv(ptr dead_on_unwind nonnull writable sret(%"class.std::shared_ptr.74") align 8 %3, ptr noundef nonnull align 8 dereferenceable(16) %6)
  invoke void @_ZN6ngraph4Node25remove_control_dependencyESt10shared_ptrIS0_E(ptr noundef nonnull align 8 dereferenceable(680) %10, ptr noundef nonnull %3)
          to label %11 unwind label %13

11:                                               ; preds = %7
  call void @_ZNSt12__shared_ptrIN6ngraph4NodeELN9__gnu_cxx12_Lock_policyE2EED2Ev(ptr noundef nonnull align 8 dereferenceable(16) %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  %12 = call noundef zeroext i1 @_ZNKSt6vectorIPN6ngraph4NodeESaIS2_EE5emptyEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #3
  br i1 %12, label %._crit_edge, label %7, !llvm.loop !9

13:                                               ; preds = %7
  %14 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt12__shared_ptrIN6ngraph4NodeELN9__gnu_cxx12_Lock_policyE2EED2Ev(ptr noundef nonnull align 8 dereferenceable(16) %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  resume { ptr, i32 } %14

._crit_edge:                                      ; preds = %11, %1
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN6ngraph4Node25remove_control_dependencyESt10shared_ptrIS0_E(ptr noundef nonnull align 8 dereferenceable(680), ptr noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPPN6ngraph4NodeESt6vectorIS3_SaIS3_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt12__shared_ptrIN6ngraph4NodeELN9__gnu_cxx12_Lock_policyE2EED2Ev(ptr noundef nonnull align 8 dereferenceable(16)) 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 = { 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,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass