; LLVM IR from Xiangyu-Hu/SPHinXsys :: src/shared/tools/tinyxml2.ll (ZNK8tinyxml211XMLDocument6AcceptEPNS_10XMLVisitorE)

; 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 uwtable
define dso_local noundef zeroext i1 @_ZNK8tinyxml211XMLDocument6AcceptEPNS_10XMLVisitorE(ptr noundef nonnull align 8 dereferenceable(776) %0, ptr noundef %1) unnamed_addr #1 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
  br label %8

8:                                                ; preds = %2
  br label %9

9:                                                ; preds = %8
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = load ptr, ptr %10, align 8, !tbaa !9
  %12 = getelementptr inbounds ptr, ptr %11, i64 2
  %13 = load ptr, ptr %12, align 8
  %14 = call noundef zeroext i1 %13(ptr noundef nonnull align 8 dereferenceable(8) %10, ptr noundef nonnull align 8 dereferenceable(776) %7)
  br i1 %14, label %15, label %35

15:                                               ; preds = %9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %16 = call noundef ptr @_ZNK8tinyxml27XMLNode10FirstChildEv(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 4, 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 14
  %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 4, 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 @_ZNK8tinyxml27XMLNode11NextSiblingEv(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, %9
  %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 3
  %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(776) %7)
  ret i1 %40
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK8tinyxml27XMLNode10FirstChildEv(ptr noundef nonnull align 8 dereferenceable(104)) #2 align 2

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

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
attributes #2 = { 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 #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 uwtable
define dso_local noundef zeroext i1 @_ZNK8tinyxml211XMLDocument6AcceptEPNS_10XMLVisitorE(ptr noundef nonnull align 8 dereferenceable(776) %0, ptr noundef %1) unnamed_addr #0 align 2 {
  %3 = load ptr, ptr %1, align 8, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %3, i64 16
  %5 = load ptr, ptr %4, align 8
  %6 = tail call noundef zeroext i1 %5(ptr noundef nonnull align 8 dereferenceable(8) %1, ptr noundef nonnull align 8 dereferenceable(776) %0)
  br i1 %6, label %7, label %.loopexit

7:                                                ; preds = %2
  %8 = tail call noundef ptr @_ZNK8tinyxml27XMLNode10FirstChildEv(ptr noundef nonnull align 8 dereferenceable(104) %0)
  %.not7 = icmp eq ptr %8, null
  br i1 %.not7, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %7, %13
  %.08 = phi ptr [ %14, %13 ], [ %8, %7 ]
  %9 = load ptr, ptr %.08, align 8, !tbaa !5
  %10 = getelementptr inbounds i8, ptr %9, i64 112
  %11 = load ptr, ptr %10, align 8
  %12 = tail call noundef zeroext i1 %11(ptr noundef nonnull align 8 dereferenceable(104) %.08, ptr noundef nonnull %1)
  br i1 %12, label %13, label %.loopexit

13:                                               ; preds = %.lr.ph
  %14 = tail call noundef ptr @_ZNK8tinyxml27XMLNode11NextSiblingEv(ptr noundef nonnull align 8 dereferenceable(104) %.08)
  %.not = icmp eq ptr %14, null
  br i1 %.not, label %.loopexit, label %.lr.ph, !llvm.loop !8

.loopexit:                                        ; preds = %.lr.ph, %13, %7, %2
  %15 = load ptr, ptr %1, align 8, !tbaa !5
  %16 = getelementptr inbounds i8, ptr %15, i64 24
  %17 = load ptr, ptr %16, align 8
  %18 = tail call noundef zeroext i1 %17(ptr noundef nonnull align 8 dereferenceable(8) %1, ptr noundef nonnull align 8 dereferenceable(776) %0)
  ret i1 %18
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK8tinyxml27XMLNode10FirstChildEv(ptr noundef nonnull align 8 dereferenceable(104)) local_unnamed_addr #1 align 2

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

!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