; LLVM IR from HiroIshida/tinyfk :: urdf_parser/tinyxml/tinyxml.ll (ZN12TiXmlElementC2ERKS_)

; 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 }

@_ZTV12TiXmlElement = external dso_local unnamed_addr constant { [21 x ptr] }, align 8

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN9TiXmlNodeC2ENS_8NodeTypeE(ptr noundef nonnull align 8 dereferenceable(104), i32 noundef) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN12TiXmlElementC2ERKS_(ptr noundef nonnull align 8 dereferenceable(216) %0, ptr noundef nonnull align 8 dereferenceable(216) %1) unnamed_addr #0 align 2 personality ptr @__gxx_personality_v0 {
  %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
  call void @_ZN9TiXmlNodeC2ENS_8NodeTypeE(ptr noundef nonnull align 8 dereferenceable(104) %7, i32 noundef 1)
  store ptr getelementptr inbounds inrange(-16, 152) ({ [21 x ptr] }, ptr @_ZTV12TiXmlElement, i32 0, i32 0, i32 2), ptr %7, align 8, !tbaa !9
  %8 = getelementptr inbounds %class.TiXmlElement, ptr %7, i32 0, i32 1
  invoke void @_ZN17TiXmlAttributeSetC1Ev(ptr noundef nonnull align 8 dereferenceable(112) %8)
          to label %9 unwind label %14

9:                                                ; preds = %2
  %10 = getelementptr inbounds %class.TiXmlNode, ptr %7, i32 0, i32 4
  store ptr null, ptr %10, align 8, !tbaa !11
  %11 = getelementptr inbounds %class.TiXmlNode, ptr %7, i32 0, i32 3
  store ptr null, ptr %11, align 8, !tbaa !20
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  invoke void @_ZNK12TiXmlElement6CopyToEPS_(ptr noundef nonnull align 8 dereferenceable(216) %12, ptr noundef %7)
          to label %13 unwind label %18

13:                                               ; preds = %9
  ret void

14:                                               ; preds = %2
  %15 = landingpad { ptr, i32 }
          cleanup
  %16 = extractvalue { ptr, i32 } %15, 0
  store ptr %16, ptr %5, align 8
  %17 = extractvalue { ptr, i32 } %15, 1
  store i32 %17, ptr %6, align 4
  br label %22

18:                                               ; preds = %9
  %19 = landingpad { ptr, i32 }
          cleanup
  %20 = extractvalue { ptr, i32 } %19, 0
  store ptr %20, ptr %5, align 8
  %21 = extractvalue { ptr, i32 } %19, 1
  store i32 %21, ptr %6, align 4
  call void @_ZN17TiXmlAttributeSetD1Ev(ptr noundef nonnull align 8 dereferenceable(112) %8) #2
  br label %22

22:                                               ; preds = %18, %14
  call void @_ZN9TiXmlNodeD2Ev(ptr noundef nonnull align 8 dereferenceable(104) %7) #2
  br label %23

23:                                               ; preds = %22
  %24 = load ptr, ptr %5, align 8
  %25 = load i32, ptr %6, align 4
  %26 = insertvalue { ptr, i32 } poison, ptr %24, 0
  %27 = insertvalue { ptr, i32 } %26, i32 %25, 1
  resume { ptr, i32 } %27
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNK12TiXmlElement6CopyToEPS_(ptr noundef nonnull align 8 dereferenceable(216), ptr noundef) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN9TiXmlNodeD2Ev(ptr noundef nonnull align 8 dereferenceable(104)) unnamed_addr #1 align 2

declare void @_ZN17TiXmlAttributeSetC1Ev(ptr)

declare void @_ZN17TiXmlAttributeSetD1Ev(ptr)

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 = { 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 = !{!12, !6, i64 48}
!12 = !{!"_ZTS9TiXmlNode", !13, i64 0, !6, i64 24, !16, i64 32, !6, i64 40, !6, i64 48, !17, i64 56, !6, i64 88, !6, i64 96}
!13 = !{!"_ZTS9TiXmlBase", !14, i64 8, !6, i64 16}
!14 = !{!"_ZTS11TiXmlCursor", !15, i64 0, !15, i64 4}
!15 = !{!"int", !7, i64 0}
!16 = !{!"_ZTSN9TiXmlNode8NodeTypeE", !7, i64 0}
!17 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !18, i64 0, !19, i64 8, !7, i64 16}
!18 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !6, i64 0}
!19 = !{!"long", !7, i64 0}
!20 = !{!12, !6, i64 40}


; 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"

@_ZTV12TiXmlElement = external dso_local unnamed_addr constant { [21 x ptr] }, align 8

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN9TiXmlNodeC2ENS_8NodeTypeE(ptr noundef nonnull align 8 dereferenceable(104), i32 noundef) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN12TiXmlElementC2ERKS_(ptr noundef nonnull align 8 dereferenceable(216) %0, ptr noundef nonnull align 8 dereferenceable(216) %1) unnamed_addr #0 align 2 personality ptr @__gxx_personality_v0 {
  tail call void @_ZN9TiXmlNodeC2ENS_8NodeTypeE(ptr noundef nonnull align 8 dereferenceable(104) %0, i32 noundef 1)
  store ptr getelementptr inbounds inrange(-16, 152) (i8, ptr @_ZTV12TiXmlElement, i64 16), ptr %0, align 8, !tbaa !5
  %3 = getelementptr inbounds i8, ptr %0, i64 104
  invoke void @_ZN17TiXmlAttributeSetC1Ev(ptr noundef nonnull align 8 dereferenceable(112) %3)
          to label %4 unwind label %7

4:                                                ; preds = %2
  %5 = getelementptr inbounds i8, ptr %0, i64 40
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %5, i8 0, i64 16, i1 false)
  invoke void @_ZNK12TiXmlElement6CopyToEPS_(ptr noundef nonnull align 8 dereferenceable(216) %1, ptr noundef nonnull %0)
          to label %6 unwind label %9

6:                                                ; preds = %4
  ret void

7:                                                ; preds = %2
  %8 = landingpad { ptr, i32 }
          cleanup
  br label %11

9:                                                ; preds = %4
  %10 = landingpad { ptr, i32 }
          cleanup
  tail call void @_ZN17TiXmlAttributeSetD1Ev(ptr noundef nonnull align 8 dereferenceable(112) %3) #3
  br label %11

11:                                               ; preds = %9, %7
  %.pn = phi { ptr, i32 } [ %10, %9 ], [ %8, %7 ]
  tail call void @_ZN9TiXmlNodeD2Ev(ptr noundef nonnull align 8 dereferenceable(104) %0) #3
  resume { ptr, i32 } %.pn
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNK12TiXmlElement6CopyToEPS_(ptr noundef nonnull align 8 dereferenceable(216), ptr noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN9TiXmlNodeD2Ev(ptr noundef nonnull align 8 dereferenceable(104)) unnamed_addr #1 align 2

declare void @_ZN17TiXmlAttributeSetC1Ev(ptr) local_unnamed_addr

declare void @_ZN17TiXmlAttributeSetD1Ev(ptr) local_unnamed_addr

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #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 nounwind willreturn memory(argmem: write) }
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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}


; Effective O3 passes: GlobalOptPass,InstCombinePass,MemCpyOptPass,SROAPass,SimplifyCFGPass,TailCallElimPass