; LLVM IR from kajott/GIPS :: src/file_util_posix.ll (ZN8FileUtil9Directory5closeEv)

; 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.FileUtil::Directory" = type { ptr }
%"struct.FileUtil::DirectoryPrivate" = type { %"class.std::__cxx11::basic_string", 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] }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN8FileUtil9Directory5closeEv(ptr noundef nonnull align 8 dereferenceable(8) %0) #0 align 2 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8
  %4 = getelementptr inbounds %"class.FileUtil::Directory", ptr %3, i32 0, i32 0
  %5 = load ptr, ptr %4, align 8, !tbaa !9
  %6 = icmp ne ptr %5, null
  br i1 %6, label %7, label %19

7:                                                ; preds = %1
  %8 = getelementptr inbounds %"class.FileUtil::Directory", ptr %3, i32 0, i32 0
  %9 = load ptr, ptr %8, align 8, !tbaa !9
  %10 = getelementptr inbounds %"struct.FileUtil::DirectoryPrivate", ptr %9, i32 0, i32 1
  %11 = load ptr, ptr %10, align 8, !tbaa !11
  %12 = call i32 @closedir(ptr noundef %11)
  %13 = getelementptr inbounds %"class.FileUtil::Directory", ptr %3, i32 0, i32 0
  %14 = load ptr, ptr %13, align 8, !tbaa !9
  %15 = icmp eq ptr %14, null
  br i1 %15, label %17, label %16

16:                                               ; preds = %7
  call void @_ZN8FileUtil16DirectoryPrivateD2Ev(ptr noundef nonnull align 8 dereferenceable(48) %14) #4
  call void @_ZdlPvm(ptr noundef %14, i64 noundef 48) #5
  br label %17

17:                                               ; preds = %16, %7
  %18 = getelementptr inbounds %"class.FileUtil::Directory", ptr %3, i32 0, i32 0
  store ptr null, ptr %18, align 8, !tbaa !9
  br label %19

19:                                               ; preds = %17, %1
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN8FileUtil16DirectoryPrivateD2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #1 align 2

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

declare i32 @closedir(ptr noundef) #3

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 = { inlinehint 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 = { 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 = { "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 = { nounwind }
attributes #5 = { 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, !6, i64 0}
!10 = !{!"_ZTSN8FileUtil9DirectoryE", !6, i64 0}
!11 = !{!12, !6, i64 32}
!12 = !{!"_ZTSN8FileUtil16DirectoryPrivateE", !13, i64 0, !6, i64 32, !6, i64 40}
!13 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !14, i64 0, !15, i64 8, !7, i64 16}
!14 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !6, i64 0}
!15 = !{!"long", !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"

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN8FileUtil9Directory5closeEv(ptr nocapture noundef nonnull align 8 dereferenceable(8) %0) local_unnamed_addr #0 align 2 {
  %2 = load ptr, ptr %0, align 8, !tbaa !5
  %.not = icmp eq ptr %2, null
  br i1 %.not, label %11, label %3

3:                                                ; preds = %1
  %4 = getelementptr inbounds i8, ptr %2, i64 32
  %5 = load ptr, ptr %4, align 8, !tbaa !10
  %6 = tail call i32 @closedir(ptr noundef %5)
  %7 = load ptr, ptr %0, align 8, !tbaa !5
  %8 = icmp eq ptr %7, null
  br i1 %8, label %10, label %9

9:                                                ; preds = %3
  tail call void @_ZN8FileUtil16DirectoryPrivateD2Ev(ptr noundef nonnull align 8 dereferenceable(48) %7) #4
  tail call void @_ZdlPvm(ptr noundef nonnull %7, i64 noundef 48) #5
  br label %10

10:                                               ; preds = %9, %3
  store ptr null, ptr %0, align 8, !tbaa !5
  br label %11

11:                                               ; preds = %10, %1
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN8FileUtil16DirectoryPrivateD2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #1 align 2

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

; Function Attrs: nofree nounwind
declare noundef i32 @closedir(ptr nocapture noundef) local_unnamed_addr #3

attributes #0 = { 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 #1 = { inlinehint 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 = { 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 = { nofree 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 #4 = { nounwind }
attributes #5 = { 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, !7, i64 0}
!6 = !{!"_ZTSN8FileUtil9DirectoryE", !7, i64 0}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!11, !7, i64 32}
!11 = !{!"_ZTSN8FileUtil16DirectoryPrivateE", !12, i64 0, !7, i64 32, !7, i64 40}
!12 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !13, i64 0, !14, i64 8, !8, i64 16}
!13 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !7, i64 0}
!14 = !{!"long", !8, i64 0}


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