; LLVM IR from chensoft/libsocket :: src/inet/inet_adapter.unix.ll (ZN4chen12inet_adapter9enumerateB5cxx11Ev)

; 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::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<std::__cxx11::basic_string<char>, std::pair<const std::__cxx11::basic_string<char>, chen::inet_adapter>, std::_Select1st<std::pair<const std::__cxx11::basic_string<char>, chen::inet_adapter>>, 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>, chen::inet_adapter>, std::_Select1st<std::pair<const std::__cxx11::basic_string<char>, chen::inet_adapter>>, std::less<std::__cxx11::basic_string<char>>>::_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::function" = type { %"class.std::_Function_base", ptr }
%"class.std::_Function_base" = type { %"union.std::_Any_data", ptr }
%"union.std::_Any_data" = type { %"union.std::_Nocopy_types" }
%"union.std::_Nocopy_types" = type { { i64, i64 } }
%class.anon = type { ptr }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4chen12inet_adapter9enumerateB5cxx11Ev(ptr dead_on_unwind noalias writable sret(%"class.std::map") align 8 %0) #0 align 2 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca i1, align 1
  %4 = alloca %"class.std::function", align 8
  %5 = alloca %class.anon, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %2, align 8
  store i1 false, ptr %3, align 1
  call void @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEN4chen12inet_adapterESt4lessIS5_ESaISt4pairIKS5_S7_EEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %0) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %8 = getelementptr inbounds %class.anon, ptr %5, i32 0, i32 0
  store ptr %0, ptr %8, align 8, !tbaa !5
  call void @"_ZNSt8functionIFvP7ifaddrsRbEEC2IZN4chen12inet_adapter9enumerateB5cxx11EvE3$_0vEEOT_"(ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef nonnull align 8 dereferenceable(8) %5) #3
  invoke void @_ZN12_GLOBAL__N_15visitESt8functionIFvP7ifaddrsRbEE(ptr noundef %4)
          to label %9 unwind label %11

9:                                                ; preds = %1
  call void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  store i1 true, ptr %3, align 1
  %10 = load i1, ptr %3, align 1
  br i1 %10, label %16, label %15

11:                                               ; preds = %1
  %12 = landingpad { ptr, i32 }
          cleanup
  %13 = extractvalue { ptr, i32 } %12, 0
  store ptr %13, ptr %6, align 8
  %14 = extractvalue { ptr, i32 } %12, 1
  store i32 %14, ptr %7, align 4
  call void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  call void @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEN4chen12inet_adapterESt4lessIS5_ESaISt4pairIKS5_S7_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %0) #3
  br label %17

15:                                               ; preds = %9
  call void @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEN4chen12inet_adapterESt4lessIS5_ESaISt4pairIKS5_S7_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %0) #3
  br label %16

16:                                               ; preds = %15, %9
  ret void

17:                                               ; preds = %11
  %18 = load ptr, ptr %6, align 8
  %19 = load i32, ptr %7, align 4
  %20 = insertvalue { ptr, i32 } poison, ptr %18, 0
  %21 = insertvalue { ptr, i32 } %20, i32 %19, 1
  resume { ptr, i32 } %21
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEN4chen12inet_adapterESt4lessIS5_ESaISt4pairIKS5_S7_EEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare hidden void @_ZN12_GLOBAL__N_15visitESt8functionIFvP7ifaddrsRbEE(ptr noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare hidden void @"_ZNSt8functionIFvP7ifaddrsRbEEC2IZN4chen12inet_adapter9enumerateB5cxx11EvE3$_0vEEOT_"(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #1 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEN4chen12inet_adapterESt4lessIS5_ESaISt4pairIKS5_S7_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #1 align 2

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


; 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::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<std::__cxx11::basic_string<char>, std::pair<const std::__cxx11::basic_string<char>, chen::inet_adapter>, std::_Select1st<std::pair<const std::__cxx11::basic_string<char>, chen::inet_adapter>>, 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>, chen::inet_adapter>, std::_Select1st<std::pair<const std::__cxx11::basic_string<char>, chen::inet_adapter>>, std::less<std::__cxx11::basic_string<char>>>::_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::function" = type { %"class.std::_Function_base", ptr }
%"class.std::_Function_base" = type { %"union.std::_Any_data", ptr }
%"union.std::_Any_data" = type { %"union.std::_Nocopy_types" }
%"union.std::_Nocopy_types" = type { { i64, i64 } }
%class.anon = type { ptr }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4chen12inet_adapter9enumerateB5cxx11Ev(ptr dead_on_unwind noalias nonnull writable sret(%"class.std::map") align 8 %0) local_unnamed_addr #0 align 2 personality ptr @__gxx_personality_v0 {
  %2 = alloca %"class.std::function", align 8
  %3 = alloca %class.anon, align 8
  tail call void @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEN4chen12inet_adapterESt4lessIS5_ESaISt4pairIKS5_S7_EEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %0) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  store ptr %0, ptr %3, align 8, !tbaa !5
  call void @"_ZNSt8functionIFvP7ifaddrsRbEEC2IZN4chen12inet_adapter9enumerateB5cxx11EvE3$_0vEEOT_"(ptr noundef nonnull align 8 dereferenceable(32) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #3
  invoke void @_ZN12_GLOBAL__N_15visitESt8functionIFvP7ifaddrsRbEE(ptr noundef nonnull %2)
          to label %4 unwind label %5

4:                                                ; preds = %1
  call void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  ret void

5:                                                ; preds = %1
  %6 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  call void @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEN4chen12inet_adapterESt4lessIS5_ESaISt4pairIKS5_S7_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %0) #3
  resume { ptr, i32 } %6
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEN4chen12inet_adapterESt4lessIS5_ESaISt4pairIKS5_S7_EEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare hidden void @_ZN12_GLOBAL__N_15visitESt8functionIFvP7ifaddrsRbEE(ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare hidden void @"_ZNSt8functionIFvP7ifaddrsRbEEC2IZN4chen12inet_adapter9enumerateB5cxx11EvE3$_0vEEOT_"(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #1 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEN4chen12inet_adapterESt4lessIS5_ESaISt4pairIKS5_S7_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #1 align 2

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


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass