; LLVM IR from HiroIshida/tinyfk :: urdf_parser/tinyxml/tinystr.ll (ZplRK11TiXmlStringPKc)

; 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.TiXmlString = type { ptr }

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN11TiXmlString7reserveEm(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN11TiXmlStringC2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNK11TiXmlString6lengthEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN11TiXmlStringD2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #2 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN11TiXmlString6appendEPKcm(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef, i64 noundef) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN11TiXmlStringpLERKS_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZplRK11TiXmlStringPKc(ptr dead_on_unwind noalias writable sret(%class.TiXmlString) align 8 %0, ptr noundef nonnull align 8 dereferenceable(8) %1, ptr noundef %2) #0 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i1, align 1
  %8 = alloca i64, align 8
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  store ptr %0, ptr %4, align 8
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  store i1 false, ptr %7, align 1
  call void @_ZN11TiXmlStringC2Ev(ptr noundef nonnull align 8 dereferenceable(8) %0)
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  %11 = load ptr, ptr %6, align 8, !tbaa !5
  %12 = call i64 @strlen(ptr noundef %11) #5
  store i64 %12, ptr %8, align 8, !tbaa !9
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = invoke noundef i64 @_ZNK11TiXmlString6lengthEv(ptr noundef nonnull align 8 dereferenceable(8) %13)
          to label %15 unwind label %27

15:                                               ; preds = %3
  %16 = load i64, ptr %8, align 8, !tbaa !9
  %17 = add i64 %14, %16
  invoke void @_ZN11TiXmlString7reserveEm(ptr noundef nonnull align 8 dereferenceable(8) %0, i64 noundef %17)
          to label %18 unwind label %27

18:                                               ; preds = %15
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZN11TiXmlStringpLERKS_(ptr noundef nonnull align 8 dereferenceable(8) %0, ptr noundef nonnull align 8 dereferenceable(8) %19)
          to label %21 unwind label %27

21:                                               ; preds = %18
  %22 = load ptr, ptr %6, align 8, !tbaa !5
  %23 = load i64, ptr %8, align 8, !tbaa !9
  %24 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZN11TiXmlString6appendEPKcm(ptr noundef nonnull align 8 dereferenceable(8) %0, ptr noundef %22, i64 noundef %23)
          to label %25 unwind label %27

25:                                               ; preds = %21
  store i1 true, ptr %7, align 1
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  %26 = load i1, ptr %7, align 1
  br i1 %26, label %32, label %31

27:                                               ; preds = %21, %18, %15, %3
  %28 = landingpad { ptr, i32 }
          cleanup
  %29 = extractvalue { ptr, i32 } %28, 0
  store ptr %29, ptr %9, align 8
  %30 = extractvalue { ptr, i32 } %28, 1
  store i32 %30, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  call void @_ZN11TiXmlStringD2Ev(ptr noundef nonnull align 8 dereferenceable(8) %0) #4
  br label %33

31:                                               ; preds = %25
  call void @_ZN11TiXmlStringD2Ev(ptr noundef nonnull align 8 dereferenceable(8) %0) #4
  br label %32

32:                                               ; preds = %31, %25
  ret void

33:                                               ; preds = %27
  %34 = load ptr, ptr %9, align 8
  %35 = load i32, ptr %10, align 4
  %36 = insertvalue { ptr, i32 } poison, ptr %34, 0
  %37 = insertvalue { ptr, i32 } %36, i32 %35, 1
  resume { ptr, i32 } %37
}

; Function Attrs: nounwind willreturn memory(read)
declare i64 @strlen(ptr noundef) #3

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 willreturn memory(read) "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 = { nounwind willreturn memory(read) }

!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 = !{!"long", !7, i64 0}


; 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"

%class.TiXmlString = type { ptr }

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN11TiXmlString7reserveEm(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN11TiXmlStringC2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNK11TiXmlString6lengthEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN11TiXmlStringD2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN11TiXmlString6appendEPKcm(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef, i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN11TiXmlStringpLERKS_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZplRK11TiXmlStringPKc(ptr dead_on_unwind noalias nonnull writable sret(%class.TiXmlString) align 8 %0, ptr noundef nonnull align 8 dereferenceable(8) %1, ptr noundef %2) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  tail call void @_ZN11TiXmlStringC2Ev(ptr noundef nonnull align 8 dereferenceable(8) %0)
  %4 = tail call i64 @strlen(ptr noundef nonnull dereferenceable(1) %2) #3
  %5 = tail call noundef i64 @_ZNK11TiXmlString6lengthEv(ptr noundef nonnull align 8 dereferenceable(8) %1)
  %6 = add i64 %5, %4
  invoke void @_ZN11TiXmlString7reserveEm(ptr noundef nonnull align 8 dereferenceable(8) %0, i64 noundef %6)
          to label %7 unwind label %11

7:                                                ; preds = %3
  %8 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZN11TiXmlStringpLERKS_(ptr noundef nonnull align 8 dereferenceable(8) %0, ptr noundef nonnull align 8 dereferenceable(8) %1)
          to label %9 unwind label %11

9:                                                ; preds = %7
  %10 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZN11TiXmlString6appendEPKcm(ptr noundef nonnull align 8 dereferenceable(8) %0, ptr noundef %2, i64 noundef %4)
          to label %13 unwind label %11

11:                                               ; preds = %9, %7, %3
  %12 = landingpad { ptr, i32 }
          cleanup
  tail call void @_ZN11TiXmlStringD2Ev(ptr noundef nonnull align 8 dereferenceable(8) %0) #4
  resume { ptr, i32 } %12

13:                                               ; preds = %9
  ret void
}

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare i64 @strlen(ptr nocapture noundef) local_unnamed_addr #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 = { mustprogress nofree nounwind willreturn memory(argmem: read) "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 willreturn memory(read) }
attributes #4 = { 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: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass