; LLVM IR from yinqiwen/ardb :: src/common/util/datagram_packet.ll (ZN4ardb14DatagramPacketD2Ev)

; 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.ardb::DatagramPacket" = type <{ %"class.ardb::SocketInetAddress", ptr, i8, [7 x i8] }>
%"class.ardb::SocketInetAddress" = type <{ %"class.ardb::Address", %"union.ardb::SocketInetAddress::MyAddrUnion", [2 x i8] }>
%"class.ardb::Address" = type { ptr }
%"union.ardb::SocketInetAddress::MyAddrUnion" = type { %struct.sockaddr, [94 x i8] }
%struct.sockaddr = type { i16, [14 x i8] }

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4ardb7AddressD2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN4ardb14DatagramPacketD2Ev(ptr noundef nonnull align 8 dereferenceable(129) %0) unnamed_addr #1 align 2 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8
  %4 = getelementptr inbounds %"class.ardb::DatagramPacket", ptr %3, i32 0, i32 2
  %5 = load i8, ptr %4, align 8, !tbaa !9, !range !14, !noundef !15
  %6 = trunc i8 %5 to i1
  br i1 %6, label %7, label %17

7:                                                ; preds = %1
  br label %8

8:                                                ; preds = %7
  %9 = getelementptr inbounds %"class.ardb::DatagramPacket", ptr %3, i32 0, i32 1
  %10 = load ptr, ptr %9, align 8, !tbaa !16
  %11 = icmp eq ptr %10, null
  br i1 %11, label %13, label %12

12:                                               ; preds = %8
  call void @_ZN4ardb6BufferD2Ev(ptr noundef nonnull align 8 dereferenceable(33) %10) #3
  call void @_ZdlPvm(ptr noundef %10, i64 noundef 40) #4
  br label %13

13:                                               ; preds = %12, %8
  %14 = getelementptr inbounds %"class.ardb::DatagramPacket", ptr %3, i32 0, i32 1
  store ptr null, ptr %14, align 8, !tbaa !16
  br label %15

15:                                               ; preds = %13
  br label %16

16:                                               ; preds = %15
  br label %17

17:                                               ; preds = %16, %1
  %18 = getelementptr inbounds %"class.ardb::DatagramPacket", ptr %3, i32 0, i32 0
  call void @_ZN4ardb7AddressD2Ev(ptr noundef nonnull align 8 dereferenceable(118) %18) #3
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN4ardb6BufferD2Ev(ptr noundef nonnull align 8 dereferenceable(33)) 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 = { 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 = { inlinehint 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 }
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)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !13, i64 128}
!10 = !{!"_ZTSN4ardb14DatagramPacketE", !11, i64 0, !6, i64 120, !13, i64 128}
!11 = !{!"_ZTSN4ardb17SocketInetAddressE", !12, i64 0, !7, i64 8}
!12 = !{!"_ZTSN4ardb7AddressE"}
!13 = !{!"bool", !7, i64 0}
!14 = !{i8 0, i8 2}
!15 = !{}
!16 = !{!10, !6, i64 120}


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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4ardb7AddressD2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN4ardb14DatagramPacketD2Ev(ptr noundef nonnull align 8 dereferenceable(129) %0) unnamed_addr #1 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 128
  %3 = load i8, ptr %2, align 8, !tbaa !5, !range !13, !noundef !14
  %4 = trunc nuw i8 %3 to i1
  br i1 %4, label %5, label %11

5:                                                ; preds = %1
  %6 = getelementptr inbounds i8, ptr %0, i64 120
  %7 = load ptr, ptr %6, align 8, !tbaa !15
  %8 = icmp eq ptr %7, null
  br i1 %8, label %10, label %9

9:                                                ; preds = %5
  tail call void @_ZN4ardb6BufferD2Ev(ptr noundef nonnull align 8 dereferenceable(33) %7) #3
  tail call void @_ZdlPvm(ptr noundef nonnull %7, i64 noundef 40) #4
  br label %10

10:                                               ; preds = %9, %5
  store ptr null, ptr %6, align 8, !tbaa !15
  br label %11

11:                                               ; preds = %10, %1
  tail call void @_ZN4ardb7AddressD2Ev(ptr noundef nonnull align 8 dereferenceable(118) %0) #3
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN4ardb6BufferD2Ev(ptr noundef nonnull align 8 dereferenceable(33)) 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 = { 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 = { inlinehint 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 }
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)"}
!5 = !{!6, !12, i64 128}
!6 = !{!"_ZTSN4ardb14DatagramPacketE", !7, i64 0, !11, i64 120, !12, i64 128}
!7 = !{!"_ZTSN4ardb17SocketInetAddressE", !8, i64 0, !9, i64 8}
!8 = !{!"_ZTSN4ardb7AddressE"}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C++ TBAA"}
!11 = !{!"any pointer", !9, i64 0}
!12 = !{!"bool", !9, i64 0}
!13 = !{i8 0, i8 2}
!14 = !{}
!15 = !{!6, !11, i64 120}


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