; LLVM IR from CerebusOSS/CereLink :: Central/Instrument.ll (ZN10Instrument4TickEv)

; 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.Instrument = type <{ ptr, %class.UDPSocket, [6 x %"class.Instrument::CachedPacket"], i32, i32, i32, [4 x i8], ptr, ptr, i32, [4 x i8] }>
%class.UDPSocket = type <{ ptr, i32, %struct.sockaddr_in, i32, i32, i8, i8, [2 x i8] }>
%struct.sockaddr_in = type { i16, i16, %struct.in_addr, [8 x i8] }
%struct.in_addr = type { i32 }
%"class.Instrument::CachedPacket" = type { i32, i32, i32, i32, i32, [2048 x i8], i32 }

; 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 @_ZN10Instrument4TickEv(ptr noundef nonnull align 8 dereferenceable(12516) %0) #1 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %5 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #2
  %6 = getelementptr inbounds %class.Instrument, ptr %5, i32 0, i32 2
  %7 = getelementptr inbounds [6 x %"class.Instrument::CachedPacket"], ptr %6, i64 0, i64 0
  %8 = getelementptr inbounds %"class.Instrument::CachedPacket", ptr %7, i64 6
  store ptr %8, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #2
  %9 = getelementptr inbounds %class.Instrument, ptr %5, i32 0, i32 2
  %10 = getelementptr inbounds [6 x %"class.Instrument::CachedPacket"], ptr %9, i64 0, i64 0
  store ptr %10, ptr %4, align 8, !tbaa !5
  br label %11

11:                                               ; preds = %23, %1
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  %14 = icmp ne ptr %12, %13
  br i1 %14, label %15, label %26

15:                                               ; preds = %11
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = getelementptr inbounds %class.Instrument, ptr %5, i32 0, i32 1
  %18 = getelementptr inbounds %class.Instrument, ptr %5, i32 0, i32 3
  %19 = load i32, ptr %18, align 8, !tbaa !9
  %20 = call noundef zeroext i1 @_ZN10Instrument12CachedPacket4TickERK9UDPSocketi(ptr noundef nonnull align 4 dereferenceable(2072) %16, ptr noundef nonnull align 8 dereferenceable(38) %17, i32 noundef %19)
  br i1 %20, label %21, label %22

21:                                               ; preds = %15
  br label %26

22:                                               ; preds = %15
  br label %23

23:                                               ; preds = %22
  %24 = load ptr, ptr %4, align 8, !tbaa !5
  %25 = getelementptr inbounds %"class.Instrument::CachedPacket", ptr %24, i32 1
  store ptr %25, ptr %4, align 8, !tbaa !5
  br label %11, !llvm.loop !18

26:                                               ; preds = %21, %11
  %27 = load ptr, ptr %4, align 8, !tbaa !5
  %28 = load ptr, ptr %3, align 8, !tbaa !5
  %29 = icmp ne ptr %27, %28
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #2
  ret i1 %29
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZN10Instrument12CachedPacket4TickERK9UDPSocketi(ptr noundef nonnull align 4 dereferenceable(2072), ptr noundef nonnull align 8 dereferenceable(38), i32 noundef) #1 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 = { 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, !12, i64 12480}
!10 = !{!"_ZTS10Instrument", !11, i64 8, !7, i64 48, !12, i64 12480, !12, i64 12484, !12, i64 12488, !6, i64 12496, !6, i64 12504, !12, i64 12512}
!11 = !{!"_ZTS9UDPSocket", !12, i64 8, !13, i64 12, !16, i64 28, !12, i64 32, !17, i64 36, !17, i64 37}
!12 = !{!"int", !7, i64 0}
!13 = !{!"_ZTS11sockaddr_in", !14, i64 0, !14, i64 2, !15, i64 4, !7, i64 8}
!14 = !{!"short", !7, i64 0}
!15 = !{!"_ZTS7in_addr", !12, i64 0}
!16 = !{!"_ZTS15STARTUP_OPTIONS", !7, i64 0}
!17 = !{!"bool", !7, i64 0}
!18 = distinct !{!18, !19}
!19 = !{!"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 @_ZN10Instrument4TickEv(ptr noundef nonnull align 8 dereferenceable(12516) %0) local_unnamed_addr #0 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 8
  %3 = getelementptr inbounds i8, ptr %0, i64 12480
  %.0.ptr = getelementptr inbounds i8, ptr %0, i64 48
  %4 = load i32, ptr %3, align 8, !tbaa !5
  %5 = tail call noundef zeroext i1 @_ZN10Instrument12CachedPacket4TickERK9UDPSocketi(ptr noundef nonnull align 4 dereferenceable(2072) %.0.ptr, ptr noundef nonnull align 8 dereferenceable(38) %2, i32 noundef %4)
  br i1 %5, label %21, label %6

6:                                                ; preds = %1
  %.0.ptr.1 = getelementptr inbounds i8, ptr %0, i64 2120
  %7 = load i32, ptr %3, align 8, !tbaa !5
  %8 = tail call noundef zeroext i1 @_ZN10Instrument12CachedPacket4TickERK9UDPSocketi(ptr noundef nonnull align 4 dereferenceable(2072) %.0.ptr.1, ptr noundef nonnull align 8 dereferenceable(38) %2, i32 noundef %7)
  br i1 %8, label %21, label %9

9:                                                ; preds = %6
  %.0.ptr.2 = getelementptr inbounds i8, ptr %0, i64 4192
  %10 = load i32, ptr %3, align 8, !tbaa !5
  %11 = tail call noundef zeroext i1 @_ZN10Instrument12CachedPacket4TickERK9UDPSocketi(ptr noundef nonnull align 4 dereferenceable(2072) %.0.ptr.2, ptr noundef nonnull align 8 dereferenceable(38) %2, i32 noundef %10)
  br i1 %11, label %21, label %12

12:                                               ; preds = %9
  %.0.ptr.3 = getelementptr inbounds i8, ptr %0, i64 6264
  %13 = load i32, ptr %3, align 8, !tbaa !5
  %14 = tail call noundef zeroext i1 @_ZN10Instrument12CachedPacket4TickERK9UDPSocketi(ptr noundef nonnull align 4 dereferenceable(2072) %.0.ptr.3, ptr noundef nonnull align 8 dereferenceable(38) %2, i32 noundef %13)
  br i1 %14, label %21, label %15

15:                                               ; preds = %12
  %.0.ptr.4 = getelementptr inbounds i8, ptr %0, i64 8336
  %16 = load i32, ptr %3, align 8, !tbaa !5
  %17 = tail call noundef zeroext i1 @_ZN10Instrument12CachedPacket4TickERK9UDPSocketi(ptr noundef nonnull align 4 dereferenceable(2072) %.0.ptr.4, ptr noundef nonnull align 8 dereferenceable(38) %2, i32 noundef %16)
  br i1 %17, label %21, label %18

18:                                               ; preds = %15
  %.0.ptr.5 = getelementptr inbounds i8, ptr %0, i64 10408
  %19 = load i32, ptr %3, align 8, !tbaa !5
  %20 = tail call noundef zeroext i1 @_ZN10Instrument12CachedPacket4TickERK9UDPSocketi(ptr noundef nonnull align 4 dereferenceable(2072) %.0.ptr.5, ptr noundef nonnull align 8 dereferenceable(38) %2, i32 noundef %19)
  br label %21

21:                                               ; preds = %18, %15, %12, %9, %6, %1
  %.lcssa = phi i1 [ true, %1 ], [ true, %6 ], [ true, %9 ], [ true, %12 ], [ true, %15 ], [ %20, %18 ]
  ret i1 %.lcssa
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZN10Instrument12CachedPacket4TickERK9UDPSocketi(ptr noundef nonnull align 4 dereferenceable(2072), ptr noundef nonnull align 8 dereferenceable(38), i32 noundef) local_unnamed_addr #0 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" }

!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, !8, i64 12480}
!6 = !{!"_ZTS10Instrument", !7, i64 8, !9, i64 48, !8, i64 12480, !8, i64 12484, !8, i64 12488, !16, i64 12496, !16, i64 12504, !8, i64 12512}
!7 = !{!"_ZTS9UDPSocket", !8, i64 8, !11, i64 12, !14, i64 28, !8, i64 32, !15, i64 36, !15, i64 37}
!8 = !{!"int", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C++ TBAA"}
!11 = !{!"_ZTS11sockaddr_in", !12, i64 0, !12, i64 2, !13, i64 4, !9, i64 8}
!12 = !{!"short", !9, i64 0}
!13 = !{!"_ZTS7in_addr", !8, i64 0}
!14 = !{!"_ZTS15STARTUP_OPTIONS", !9, i64 0}
!15 = !{!"bool", !9, i64 0}
!16 = !{!"any pointer", !9, i64 0}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,LCSSAPass,LICMPass,LoopRotatePass,SROAPass,SimplifyCFGPass,TailCallElimPass