; LLVM IR from chensoft/libsocket :: lib/libchen/src/sys (fs)

; 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::vector.7" = type { %"struct.std::_Vector_base.8" }
%"struct.std::_Vector_base.8" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::function.4" = 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.12 = type { ptr }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare i32 @__gxx_personality_v0(...)

; 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 @_ZN4chen2fs5visitERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt8functionIFvS8_EEb(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, i1 noundef zeroext) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4chen2fs7collectERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEb(ptr dead_on_unwind noalias writable sret(%"class.std::vector.7") align 8 %0, ptr noundef nonnull align 8 dereferenceable(32) %1, i1 noundef zeroext %2) #1 align 2 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i8, align 1
  %7 = alloca i1, align 1
  %8 = alloca %"class.std::function.4", align 8
  %9 = alloca %class.anon.12, align 8
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  store ptr %0, ptr %4, align 8
  store ptr %1, ptr %5, align 8, !tbaa !5
  %12 = zext i1 %2 to i8
  store i8 %12, ptr %6, align 1, !tbaa !9
  store i1 false, ptr %7, align 1
  call void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %14 = getelementptr inbounds %class.anon.12, ptr %9, i32 0, i32 0
  store ptr %0, ptr %14, align 8, !tbaa !5
  call void @"_ZNSt8functionIFvRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEC2IZN4chen2fs7collectES7_bE3$_0vEEOT_"(ptr noundef nonnull align 8 dereferenceable(32) %8, ptr noundef nonnull align 8 dereferenceable(8) %9) #3
  %15 = load i8, ptr %6, align 1, !tbaa !9, !range !11, !noundef !12
  %16 = trunc i8 %15 to i1
  invoke void @_ZN4chen2fs5visitERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt8functionIFvS8_EEb(ptr noundef nonnull align 8 dereferenceable(32) %13, ptr noundef %8, i1 noundef zeroext %16)
          to label %17 unwind label %19

17:                                               ; preds = %3
  call void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  store i1 true, ptr %7, align 1
  %18 = load i1, ptr %7, align 1
  br i1 %18, label %24, label %23

19:                                               ; preds = %3
  %20 = landingpad { ptr, i32 }
          cleanup
  %21 = extractvalue { ptr, i32 } %20, 0
  store ptr %21, ptr %10, align 8
  %22 = extractvalue { ptr, i32 } %20, 1
  store i32 %22, ptr %11, align 4
  call void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  call void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  br label %25

23:                                               ; preds = %17
  call void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  br label %24

24:                                               ; preds = %23, %17
  ret void

25:                                               ; preds = %19
  %26 = load ptr, ptr %10, align 8
  %27 = load i32, ptr %11, 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 nounwind uwtable
declare dso_local void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare hidden void @"_ZNSt8functionIFvRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEC2IZN4chen2fs7collectES7_bE3$_0vEEOT_"(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #2 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) 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 = !{!10, !10, i64 0}
!10 = !{!"bool", !7, i64 0}
!11 = !{i8 0, i8 2}
!12 = !{}


; 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::vector.7" = type { %"struct.std::_Vector_base.8" }
%"struct.std::_Vector_base.8" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::function.4" = 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.12 = type { ptr }

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare i32 @__gxx_personality_v0(...)

; 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 @_ZN4chen2fs5visitERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt8functionIFvS8_EEb(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, i1 noundef zeroext) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4chen2fs7collectERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEb(ptr dead_on_unwind noalias nonnull writable sret(%"class.std::vector.7") align 8 %0, ptr noundef nonnull align 8 dereferenceable(32) %1, i1 noundef zeroext %2) local_unnamed_addr #1 align 2 personality ptr @__gxx_personality_v0 {
  %4 = alloca %"class.std::function.4", align 8
  %5 = alloca %class.anon.12, align 8
  tail call void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #3
  store ptr %0, ptr %5, align 8, !tbaa !5
  call void @"_ZNSt8functionIFvRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEC2IZN4chen2fs7collectES7_bE3$_0vEEOT_"(ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef nonnull align 8 dereferenceable(8) %5) #3
  invoke void @_ZN4chen2fs5visitERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt8functionIFvS8_EEb(ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull %4, i1 noundef zeroext %2)
          to label %6 unwind label %7

6:                                                ; preds = %3
  call void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #3
  ret void

7:                                                ; preds = %3
  %8 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #3
  call void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  resume { ptr, i32 } %8
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare hidden void @"_ZNSt8functionIFvRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEC2IZN4chen2fs7collectES7_bE3$_0vEEOT_"(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #2 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) 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"}


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