; LLVM IR from HiroIshida/tinyfk :: urdf_parser/tinyxml/tinyxml.ll (ZNK12TiXmlElement6AcceptEP12TiXmlVisitor)

; 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.TiXmlElement = type { %class.TiXmlNode, %class.TiXmlAttributeSet }
%class.TiXmlNode = type { %class.TiXmlBase, ptr, i32, ptr, ptr, %"class.std::__cxx11::basic_string", ptr, ptr }
%class.TiXmlBase = type { ptr, %struct.TiXmlCursor, ptr }
%struct.TiXmlCursor = type { i32, i32 }
%"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.TiXmlAttributeSet = type { %class.TiXmlAttribute }
%class.TiXmlAttribute = type { %class.TiXmlBase, ptr, %"class.std::__cxx11::basic_string", %"class.std::__cxx11::basic_string", 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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK9TiXmlNode10FirstChildEv(ptr noundef nonnull align 8 dereferenceable(104)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK9TiXmlNode11NextSiblingEv(ptr noundef nonnull align 8 dereferenceable(104)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK17TiXmlAttributeSet5FirstEv(ptr noundef nonnull align 8 dereferenceable(112)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZNK12TiXmlElement6AcceptEP12TiXmlVisitor(ptr noundef nonnull align 8 dereferenceable(216) %0, ptr noundef %1) unnamed_addr #2 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %7 = load ptr, ptr %3, align 8
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = getelementptr inbounds %class.TiXmlElement, ptr %7, i32 0, i32 1
  %10 = call noundef ptr @_ZNK17TiXmlAttributeSet5FirstEv(ptr noundef nonnull align 8 dereferenceable(112) %9)
  %11 = load ptr, ptr %8, align 8, !tbaa !9
  %12 = getelementptr inbounds ptr, ptr %11, i64 4
  %13 = load ptr, ptr %12, align 8
  %14 = call noundef zeroext i1 %13(ptr noundef nonnull align 8 dereferenceable(8) %8, ptr noundef nonnull align 8 dereferenceable(216) %7, ptr noundef %10)
  br i1 %14, label %15, label %35

15:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %16 = call noundef ptr @_ZNK9TiXmlNode10FirstChildEv(ptr noundef nonnull align 8 dereferenceable(104) %7)
  store ptr %16, ptr %5, align 8, !tbaa !5
  br label %17

17:                                               ; preds = %30, %15
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = icmp ne ptr %18, null
  br i1 %19, label %21, label %20

20:                                               ; preds = %17
  store i32 2, ptr %6, align 4
  br label %33

21:                                               ; preds = %17
  %22 = load ptr, ptr %5, align 8, !tbaa !5
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = load ptr, ptr %22, align 8, !tbaa !9
  %25 = getelementptr inbounds ptr, ptr %24, i64 17
  %26 = load ptr, ptr %25, align 8
  %27 = call noundef zeroext i1 %26(ptr noundef nonnull align 8 dereferenceable(104) %22, ptr noundef %23)
  br i1 %27, label %29, label %28

28:                                               ; preds = %21
  store i32 2, ptr %6, align 4
  br label %33

29:                                               ; preds = %21
  br label %30

30:                                               ; preds = %29
  %31 = load ptr, ptr %5, align 8, !tbaa !5
  %32 = call noundef ptr @_ZNK9TiXmlNode11NextSiblingEv(ptr noundef nonnull align 8 dereferenceable(104) %31)
  store ptr %32, ptr %5, align 8, !tbaa !5
  br label %17, !llvm.loop !11

33:                                               ; preds = %28, %20
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  br label %34

34:                                               ; preds = %33
  br label %35

35:                                               ; preds = %34, %2
  %36 = load ptr, ptr %4, align 8, !tbaa !5
  %37 = load ptr, ptr %36, align 8, !tbaa !9
  %38 = getelementptr inbounds ptr, ptr %37, i64 5
  %39 = load ptr, ptr %38, align 8
  %40 = call noundef zeroext i1 %39(ptr noundef nonnull align 8 dereferenceable(8) %36, ptr noundef nonnull align 8 dereferenceable(216) %7)
  ret i1 %40
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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 = !{!"vtable pointer", !8, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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"

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK9TiXmlNode10FirstChildEv(ptr noundef nonnull align 8 dereferenceable(104)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK9TiXmlNode11NextSiblingEv(ptr noundef nonnull align 8 dereferenceable(104)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK17TiXmlAttributeSet5FirstEv(ptr noundef nonnull align 8 dereferenceable(112)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZNK12TiXmlElement6AcceptEP12TiXmlVisitor(ptr noundef nonnull align 8 dereferenceable(216) %0, ptr noundef %1) unnamed_addr #1 align 2 {
  %3 = getelementptr inbounds i8, ptr %0, i64 104
  %4 = tail call noundef ptr @_ZNK17TiXmlAttributeSet5FirstEv(ptr noundef nonnull align 8 dereferenceable(112) %3)
  %5 = load ptr, ptr %1, align 8, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %5, i64 32
  %7 = load ptr, ptr %6, align 8
  %8 = tail call noundef zeroext i1 %7(ptr noundef nonnull align 8 dereferenceable(8) %1, ptr noundef nonnull align 8 dereferenceable(216) %0, ptr noundef %4)
  br i1 %8, label %9, label %.loopexit

9:                                                ; preds = %2
  %10 = tail call noundef ptr @_ZNK9TiXmlNode10FirstChildEv(ptr noundef nonnull align 8 dereferenceable(104) %0)
  %.not7 = icmp eq ptr %10, null
  br i1 %.not7, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %9, %15
  %.08 = phi ptr [ %16, %15 ], [ %10, %9 ]
  %11 = load ptr, ptr %.08, align 8, !tbaa !5
  %12 = getelementptr inbounds i8, ptr %11, i64 136
  %13 = load ptr, ptr %12, align 8
  %14 = tail call noundef zeroext i1 %13(ptr noundef nonnull align 8 dereferenceable(104) %.08, ptr noundef nonnull %1)
  br i1 %14, label %15, label %.loopexit

15:                                               ; preds = %.lr.ph
  %16 = tail call noundef ptr @_ZNK9TiXmlNode11NextSiblingEv(ptr noundef nonnull align 8 dereferenceable(104) %.08)
  %.not = icmp eq ptr %16, null
  br i1 %.not, label %.loopexit, label %.lr.ph, !llvm.loop !8

.loopexit:                                        ; preds = %.lr.ph, %15, %9, %2
  %17 = load ptr, ptr %1, align 8, !tbaa !5
  %18 = getelementptr inbounds i8, ptr %17, i64 40
  %19 = load ptr, ptr %18, align 8
  %20 = tail call noundef zeroext i1 %19(ptr noundef nonnull align 8 dereferenceable(8) %1, ptr noundef nonnull align 8 dereferenceable(216) %0)
  ret i1 %20
}

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 = { 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" }

!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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass