; LLVM IR from gulrak/filesystem :: test (impl_test)

; 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.ghc::filesystem::directory_iterator" = type { %"class.std::shared_ptr" }
%"class.std::shared_ptr" = type { %"class.std::__shared_ptr" }
%"class.std::__shared_ptr" = type { ptr, %"class.std::__shared_count" }
%"class.std::__shared_count" = type { ptr }
%"class.ghc::filesystem::recursive_directory_iterator" = type { %"class.std::shared_ptr.22" }
%"class.std::shared_ptr.22" = type { %"class.std::__shared_ptr.23" }
%"class.std::__shared_ptr.23" = type { ptr, %"class.std::__shared_count" }
%"struct.ghc::filesystem::recursive_directory_iterator::recursive_directory_iterator_impl" = type { i16, i8, %"class.std::stack" }
%"class.std::stack" = type { %"class.std::deque" }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<ghc::filesystem::directory_iterator, std::allocator<ghc::filesystem::directory_iterator>>::_Deque_impl" }
%"struct.std::_Deque_base<ghc::filesystem::directory_iterator, std::allocator<ghc::filesystem::directory_iterator>>::_Deque_impl" = type { %"struct.std::_Deque_base<ghc::filesystem::directory_iterator, std::allocator<ghc::filesystem::directory_iterator>>::_Deque_impl_data" }
%"struct.std::_Deque_base<ghc::filesystem::directory_iterator, std::allocator<ghc::filesystem::directory_iterator>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator", %"struct.std::_Deque_iterator" }
%"struct.std::_Deque_iterator" = type { ptr, 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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #1

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN3ghc10filesystem28recursive_directory_iterator33recursive_directory_iterator_implC2ENS0_17directory_optionsEb(ptr noundef nonnull align 8 dereferenceable(88), i16 noundef zeroext, i1 noundef zeroext) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt10shared_ptrIN3ghc10filesystem28recursive_directory_iterator33recursive_directory_iterator_implEEC2IS3_vEEPT_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt19__shared_ptr_accessIN3ghc10filesystem28recursive_directory_iterator33recursive_directory_iterator_implELN9__gnu_cxx12_Lock_policyE2ELb0ELb0EEptEv(ptr noundef nonnull align 1 dereferenceable(1)) #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5stackIN3ghc10filesystem18directory_iteratorESt5dequeIS2_SaIS2_EEE4pushEOS2_(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 8 dereferenceable(16)) #3 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3ghc10filesystem28recursive_directory_iteratorC2ERKNS0_4pathENS0_17directory_optionsE(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef nonnull align 8 dereferenceable(32) %1, i16 noundef zeroext %2) unnamed_addr #3 align 2 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i16, align 2
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca %"class.ghc::filesystem::directory_iterator", align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i16 %2, ptr %6, align 2, !tbaa !9
  %10 = load ptr, ptr %4, align 8
  %11 = getelementptr inbounds %"class.ghc::filesystem::recursive_directory_iterator", ptr %10, i32 0, i32 0
  %12 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 88) #5
  %13 = load i16, ptr %6, align 2, !tbaa !9
  invoke void @_ZN3ghc10filesystem28recursive_directory_iterator33recursive_directory_iterator_implC2ENS0_17directory_optionsEb(ptr noundef nonnull align 8 dereferenceable(88) %12, i16 noundef zeroext %13, i1 noundef zeroext true)
          to label %14 unwind label %22

14:                                               ; preds = %3
  call void @_ZNSt10shared_ptrIN3ghc10filesystem28recursive_directory_iterator33recursive_directory_iterator_implEEC2IS3_vEEPT_(ptr noundef nonnull align 8 dereferenceable(16) %11, ptr noundef %12)
  %15 = getelementptr inbounds %"class.ghc::filesystem::recursive_directory_iterator", ptr %10, i32 0, i32 0
  %16 = call noundef ptr @_ZNKSt19__shared_ptr_accessIN3ghc10filesystem28recursive_directory_iterator33recursive_directory_iterator_implELN9__gnu_cxx12_Lock_policyE2ELb0ELb0EEptEv(ptr noundef nonnull align 1 dereferenceable(1) %15) #6
  %17 = getelementptr inbounds %"struct.ghc::filesystem::recursive_directory_iterator::recursive_directory_iterator_impl", ptr %16, i32 0, i32 2
  call void @llvm.lifetime.start.p0(i64 16, ptr %9) #6
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = load i16, ptr %6, align 2, !tbaa !9
  invoke void @_ZN3ghc10filesystem18directory_iteratorC1ERKNS0_4pathENS0_17directory_optionsE(ptr noundef nonnull align 8 dereferenceable(16) %9, ptr noundef nonnull align 8 dereferenceable(32) %18, i16 noundef zeroext %19)
          to label %20 unwind label %26

20:                                               ; preds = %14
  invoke void @_ZNSt5stackIN3ghc10filesystem18directory_iteratorESt5dequeIS2_SaIS2_EEE4pushEOS2_(ptr noundef nonnull align 8 dereferenceable(80) %17, ptr noundef nonnull align 8 dereferenceable(16) %9)
          to label %21 unwind label %30

21:                                               ; preds = %20
  call void @_ZN3ghc10filesystem18directory_iteratorD1Ev(ptr noundef nonnull align 8 dereferenceable(16) %9) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr %9) #6
  ret void

22:                                               ; preds = %3
  %23 = landingpad { ptr, i32 }
          cleanup
  %24 = extractvalue { ptr, i32 } %23, 0
  store ptr %24, ptr %7, align 8
  %25 = extractvalue { ptr, i32 } %23, 1
  store i32 %25, ptr %8, align 4
  call void @_ZdlPvm(ptr noundef %12, i64 noundef 88) #7
  br label %35

26:                                               ; preds = %14
  %27 = landingpad { ptr, i32 }
          cleanup
  %28 = extractvalue { ptr, i32 } %27, 0
  store ptr %28, ptr %7, align 8
  %29 = extractvalue { ptr, i32 } %27, 1
  store i32 %29, ptr %8, align 4
  br label %34

30:                                               ; preds = %20
  %31 = landingpad { ptr, i32 }
          cleanup
  %32 = extractvalue { ptr, i32 } %31, 0
  store ptr %32, ptr %7, align 8
  %33 = extractvalue { ptr, i32 } %31, 1
  store i32 %33, ptr %8, align 4
  call void @_ZN3ghc10filesystem18directory_iteratorD1Ev(ptr noundef nonnull align 8 dereferenceable(16) %9) #6
  br label %34

34:                                               ; preds = %30, %26
  call void @llvm.lifetime.end.p0(i64 16, ptr %9) #6
  call void @_ZNSt12__shared_ptrIN3ghc10filesystem28recursive_directory_iterator33recursive_directory_iterator_implELN9__gnu_cxx12_Lock_policyE2EED2Ev(ptr noundef nonnull align 8 dereferenceable(16) %11) #6
  br label %35

35:                                               ; preds = %34, %22
  %36 = load ptr, ptr %7, align 8
  %37 = load i32, ptr %8, align 4
  %38 = insertvalue { ptr, i32 } poison, ptr %36, 0
  %39 = insertvalue { ptr, i32 } %38, i32 %37, 1
  resume { ptr, i32 } %39
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt12__shared_ptrIN3ghc10filesystem28recursive_directory_iterator33recursive_directory_iterator_implELN9__gnu_cxx12_Lock_policyE2EED2Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #4 align 2

declare void @_ZN3ghc10filesystem18directory_iteratorC1ERKNS0_4pathENS0_17directory_optionsE(ptr, ptr, i16)

declare void @_ZN3ghc10filesystem18directory_iteratorD1Ev(ptr)

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nobuiltin allocsize(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 = { nobuiltin nounwind "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 = { 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 = { 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 #5 = { builtin allocsize(0) }
attributes #6 = { nounwind }
attributes #7 = { builtin 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 = !{!"_ZTSN3ghc10filesystem17directory_optionsE", !7, 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"

%"class.ghc::filesystem::directory_iterator" = type { %"class.std::shared_ptr" }
%"class.std::shared_ptr" = type { %"class.std::__shared_ptr" }
%"class.std::__shared_ptr" = type { ptr, %"class.std::__shared_count" }
%"class.std::__shared_count" = 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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) local_unnamed_addr #1

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN3ghc10filesystem28recursive_directory_iterator33recursive_directory_iterator_implC2ENS0_17directory_optionsEb(ptr noundef nonnull align 8 dereferenceable(88), i16 noundef zeroext, i1 noundef zeroext) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt10shared_ptrIN3ghc10filesystem28recursive_directory_iterator33recursive_directory_iterator_implEEC2IS3_vEEPT_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt19__shared_ptr_accessIN3ghc10filesystem28recursive_directory_iterator33recursive_directory_iterator_implELN9__gnu_cxx12_Lock_policyE2ELb0ELb0EEptEv(ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5stackIN3ghc10filesystem18directory_iteratorESt5dequeIS2_SaIS2_EEE4pushEOS2_(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3ghc10filesystem28recursive_directory_iteratorC2ERKNS0_4pathENS0_17directory_optionsE(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef nonnull align 8 dereferenceable(32) %1, i16 noundef zeroext %2) unnamed_addr #3 align 2 personality ptr @__gxx_personality_v0 {
  %4 = alloca %"class.ghc::filesystem::directory_iterator", align 8
  %5 = tail call noalias noundef nonnull dereferenceable(88) ptr @_Znwm(i64 noundef 88) #5
  invoke void @_ZN3ghc10filesystem28recursive_directory_iterator33recursive_directory_iterator_implC2ENS0_17directory_optionsEb(ptr noundef nonnull align 8 dereferenceable(88) %5, i16 noundef zeroext %2, i1 noundef zeroext true)
          to label %6 unwind label %11

6:                                                ; preds = %3
  tail call void @_ZNSt10shared_ptrIN3ghc10filesystem28recursive_directory_iterator33recursive_directory_iterator_implEEC2IS3_vEEPT_(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef nonnull %5)
  %7 = tail call noundef ptr @_ZNKSt19__shared_ptr_accessIN3ghc10filesystem28recursive_directory_iterator33recursive_directory_iterator_implELN9__gnu_cxx12_Lock_policyE2ELb0ELb0EEptEv(ptr noundef nonnull align 1 dereferenceable(1) %0) #6
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %4) #6
  invoke void @_ZN3ghc10filesystem18directory_iteratorC1ERKNS0_4pathENS0_17directory_optionsE(ptr noundef nonnull align 8 dereferenceable(16) %4, ptr noundef nonnull align 8 dereferenceable(32) %1, i16 noundef zeroext %2)
          to label %8 unwind label %13

8:                                                ; preds = %6
  %9 = getelementptr inbounds i8, ptr %7, i64 8
  invoke void @_ZNSt5stackIN3ghc10filesystem18directory_iteratorESt5dequeIS2_SaIS2_EEE4pushEOS2_(ptr noundef nonnull align 8 dereferenceable(80) %9, ptr noundef nonnull align 8 dereferenceable(16) %4)
          to label %10 unwind label %15

10:                                               ; preds = %8
  call void @_ZN3ghc10filesystem18directory_iteratorD1Ev(ptr noundef nonnull align 8 dereferenceable(16) %4) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %4) #6
  ret void

11:                                               ; preds = %3
  %12 = landingpad { ptr, i32 }
          cleanup
  tail call void @_ZdlPvm(ptr noundef nonnull %5, i64 noundef 88) #7
  br label %18

13:                                               ; preds = %6
  %14 = landingpad { ptr, i32 }
          cleanup
  br label %17

15:                                               ; preds = %8
  %16 = landingpad { ptr, i32 }
          cleanup
  call void @_ZN3ghc10filesystem18directory_iteratorD1Ev(ptr noundef nonnull align 8 dereferenceable(16) %4) #6
  br label %17

17:                                               ; preds = %15, %13
  %.pn = phi { ptr, i32 } [ %16, %15 ], [ %14, %13 ]
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %4) #6
  call void @_ZNSt12__shared_ptrIN3ghc10filesystem28recursive_directory_iterator33recursive_directory_iterator_implELN9__gnu_cxx12_Lock_policyE2EED2Ev(ptr noundef nonnull align 8 dereferenceable(16) %0) #6
  br label %18

18:                                               ; preds = %17, %11
  %.pn.pn = phi { ptr, i32 } [ %.pn, %17 ], [ %12, %11 ]
  resume { ptr, i32 } %.pn.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt12__shared_ptrIN3ghc10filesystem28recursive_directory_iterator33recursive_directory_iterator_implELN9__gnu_cxx12_Lock_policyE2EED2Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #4 align 2

declare void @_ZN3ghc10filesystem18directory_iteratorC1ERKNS0_4pathENS0_17directory_optionsE(ptr, ptr, i16) local_unnamed_addr

declare void @_ZN3ghc10filesystem18directory_iteratorD1Ev(ptr) local_unnamed_addr

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nobuiltin allocsize(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 = { nobuiltin nounwind "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 = { 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 = { 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 #5 = { builtin allocsize(0) }
attributes #6 = { nounwind }
attributes #7 = { builtin 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)"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,TailCallElimPass