; LLVM IR from HiroIshida/tinyfk :: urdf_parser/tinyxml/tinyxml.ll (ZNK12TiXmlComment5CloneEv)

; 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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) #1

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNK12TiXmlComment6CopyToEPS_(ptr noundef nonnull align 8 dereferenceable(104), ptr noundef) #3 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZNK12TiXmlComment5CloneEv(ptr noundef nonnull align 8 dereferenceable(104) %0) unnamed_addr #3 align 2 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  %8 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #4
  %9 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 104) #5
  invoke void @_ZN12TiXmlCommentC2Ev(ptr noundef nonnull align 8 dereferenceable(104) %9)
          to label %10 unwind label %14

10:                                               ; preds = %1
  store ptr %9, ptr %4, align 8, !tbaa !5
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = icmp ne ptr %11, null
  br i1 %12, label %18, label %13

13:                                               ; preds = %10
  store ptr null, ptr %2, align 8
  store i32 1, ptr %7, align 4
  br label %21

14:                                               ; preds = %1
  %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
  call void @_ZdlPvm(ptr noundef %9, i64 noundef 104) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  br label %23

18:                                               ; preds = %10
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  call void @_ZNK12TiXmlComment6CopyToEPS_(ptr noundef nonnull align 8 dereferenceable(104) %8, ptr noundef %19)
  %20 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %20, ptr %2, align 8
  store i32 1, ptr %7, align 4
  br label %21

21:                                               ; preds = %18, %13
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  %22 = load ptr, ptr %2, align 8
  ret ptr %22

23:                                               ; preds = %14
  %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 @_ZN12TiXmlCommentC2Ev(ptr noundef nonnull align 8 dereferenceable(104)) unnamed_addr #3 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { nobuiltin allocsize(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 = { 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 #4 = { nounwind }
attributes #5 = { builtin allocsize(0) }
attributes #6 = { 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"}


; 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"

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNK12TiXmlComment6CopyToEPS_(ptr noundef nonnull align 8 dereferenceable(104), ptr noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef nonnull ptr @_ZNK12TiXmlComment5CloneEv(ptr noundef nonnull align 8 dereferenceable(104) %0) unnamed_addr #2 align 2 personality ptr @__gxx_personality_v0 {
  %2 = tail call noalias noundef nonnull dereferenceable(104) ptr @_Znwm(i64 noundef 104) #3
  invoke void @_ZN12TiXmlCommentC2Ev(ptr noundef nonnull align 8 dereferenceable(104) %2)
          to label %5 unwind label %3

3:                                                ; preds = %1
  %4 = landingpad { ptr, i32 }
          cleanup
  tail call void @_ZdlPvm(ptr noundef nonnull %2, i64 noundef 104) #4
  resume { ptr, i32 } %4

5:                                                ; preds = %1
  tail call void @_ZNK12TiXmlComment6CopyToEPS_(ptr noundef nonnull align 8 dereferenceable(104) %0, ptr noundef nonnull %2)
  ret ptr %2
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN12TiXmlCommentC2Ev(ptr noundef nonnull align 8 dereferenceable(104)) unnamed_addr #2 align 2

attributes #0 = { 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 #1 = { nobuiltin allocsize(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 = { builtin allocsize(0) }
attributes #4 = { 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)"}


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