; LLVM IR from Xiangyu-Hu/SPHinXsys :: src/shared/tools/tinyxml2.ll (ZNK8tinyxml27XMLNode9DeepCloneEPNS_11XMLDocumentE)

; 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"

; 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 @_ZNK8tinyxml27XMLNode10FirstChildEv(ptr noundef nonnull align 8 dereferenceable(104)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK8tinyxml27XMLNode11NextSiblingEv(ptr noundef nonnull align 8 dereferenceable(104)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZNK8tinyxml27XMLNode9DeepCloneEPNS_11XMLDocumentE(ptr noundef nonnull align 8 dereferenceable(104) %0, ptr noundef %1) #2 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %10 = load ptr, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = load ptr, ptr %10, align 8, !tbaa !9
  %13 = getelementptr inbounds ptr, ptr %12, i64 12
  %14 = load ptr, ptr %13, align 8
  %15 = call noundef ptr %14(ptr noundef nonnull align 8 dereferenceable(104) %10, ptr noundef %11)
  store ptr %15, ptr %6, align 8, !tbaa !5
  %16 = load ptr, ptr %6, align 8, !tbaa !5
  %17 = icmp ne ptr %16, null
  br i1 %17, label %19, label %18

18:                                               ; preds = %2
  store ptr null, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %40

19:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %20 = call noundef ptr @_ZNK8tinyxml27XMLNode10FirstChildEv(ptr noundef nonnull align 8 dereferenceable(104) %10)
  store ptr %20, ptr %8, align 8, !tbaa !5
  br label %21

21:                                               ; preds = %35, %19
  %22 = load ptr, ptr %8, align 8, !tbaa !5
  %23 = icmp ne ptr %22, null
  br i1 %23, label %25, label %24

24:                                               ; preds = %21
  store i32 2, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %38

25:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %26 = load ptr, ptr %8, align 8, !tbaa !5
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  %28 = call noundef ptr @_ZNK8tinyxml27XMLNode9DeepCloneEPNS_11XMLDocumentE(ptr noundef nonnull align 8 dereferenceable(104) %26, ptr noundef %27)
  store ptr %28, ptr %9, align 8, !tbaa !5
  br label %29

29:                                               ; preds = %25
  br label %30

30:                                               ; preds = %29
  br label %31

31:                                               ; preds = %30
  %32 = load ptr, ptr %6, align 8, !tbaa !5
  %33 = load ptr, ptr %9, align 8, !tbaa !5
  %34 = call noundef ptr @_ZN8tinyxml27XMLNode14InsertEndChildEPS0_(ptr noundef nonnull align 8 dereferenceable(104) %32, ptr noundef %33)
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  br label %35

35:                                               ; preds = %31
  %36 = load ptr, ptr %8, align 8, !tbaa !5
  %37 = call noundef ptr @_ZNK8tinyxml27XMLNode11NextSiblingEv(ptr noundef nonnull align 8 dereferenceable(104) %36)
  store ptr %37, ptr %8, align 8, !tbaa !5
  br label %21, !llvm.loop !11

38:                                               ; preds = %24
  %39 = load ptr, ptr %6, align 8, !tbaa !5
  store ptr %39, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %40

40:                                               ; preds = %38, %18
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  %41 = load ptr, ptr %3, align 8
  ret ptr %41
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZN8tinyxml27XMLNode14InsertEndChildEPS0_(ptr noundef nonnull align 8 dereferenceable(104), ptr noundef) #2 align 2

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 @_ZNK8tinyxml27XMLNode10FirstChildEv(ptr noundef nonnull align 8 dereferenceable(104)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK8tinyxml27XMLNode11NextSiblingEv(ptr noundef nonnull align 8 dereferenceable(104)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZNK8tinyxml27XMLNode9DeepCloneEPNS_11XMLDocumentE(ptr noundef nonnull align 8 dereferenceable(104) %0, ptr noundef %1) local_unnamed_addr #1 align 2 {
  %3 = load ptr, ptr %0, align 8, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %3, i64 96
  %5 = load ptr, ptr %4, align 8
  %6 = tail call noundef ptr %5(ptr noundef nonnull align 8 dereferenceable(104) %0, ptr noundef %1)
  %.not = icmp eq ptr %6, null
  br i1 %.not, label %.loopexit, label %7

7:                                                ; preds = %2
  %8 = tail call noundef ptr @_ZNK8tinyxml27XMLNode10FirstChildEv(ptr noundef nonnull align 8 dereferenceable(104) %0)
  %.not1314 = icmp eq ptr %8, null
  br i1 %.not1314, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %7, %.lr.ph
  %.01115 = phi ptr [ %11, %.lr.ph ], [ %8, %7 ]
  %9 = tail call noundef ptr @_ZNK8tinyxml27XMLNode9DeepCloneEPNS_11XMLDocumentE(ptr noundef nonnull align 8 dereferenceable(104) %.01115, ptr noundef %1)
  %10 = tail call noundef ptr @_ZN8tinyxml27XMLNode14InsertEndChildEPS0_(ptr noundef nonnull align 8 dereferenceable(104) %6, ptr noundef %9)
  %11 = tail call noundef ptr @_ZNK8tinyxml27XMLNode11NextSiblingEv(ptr noundef nonnull align 8 dereferenceable(104) %.01115)
  %.not13 = icmp eq ptr %11, null
  br i1 %.not13, label %.loopexit, label %.lr.ph, !llvm.loop !8

.loopexit:                                        ; preds = %.lr.ph, %7, %2
  ret ptr %6
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZN8tinyxml27XMLNode14InsertEndChildEPS0_(ptr noundef nonnull align 8 dereferenceable(104), ptr noundef) local_unnamed_addr #1 align 2

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: CorrelatedValuePropagationPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass