; LLVM IR from chensoft/libsocket :: src/ip/ip_version.ll (ZNK4chen11ip_version45hostsEv)

; 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.chen::ip_version4" = type { %"class.chen::ip_version", i32 }
%"class.chen::ip_version" = type { i8 }

; 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 nounwind uwtable
declare dso_local noundef i32 @_ZNK4chen11ip_version44addrEv(ptr noundef nonnull align 4 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZNK4chen11ip_version47minhostEv(ptr noundef nonnull align 4 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZNK4chen11ip_version47maxhostEv(ptr noundef nonnull align 4 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i64 @_ZNK4chen11ip_version45hostsEv(ptr noundef nonnull align 4 dereferenceable(8) %0) #2 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca %"class.chen::ip_version4", align 4
  %4 = alloca %"class.chen::ip_version4", align 4
  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) #3
  %6 = call i64 @_ZNK4chen11ip_version47maxhostEv(ptr noundef nonnull align 4 dereferenceable(8) %5)
  store i64 %6, ptr %3, align 4
  %7 = call noundef i32 @_ZNK4chen11ip_version44addrEv(ptr noundef nonnull align 4 dereferenceable(8) %3)
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %8 = call i64 @_ZNK4chen11ip_version47minhostEv(ptr noundef nonnull align 4 dereferenceable(8) %5)
  store i64 %8, ptr %4, align 4
  %9 = call noundef i32 @_ZNK4chen11ip_version44addrEv(ptr noundef nonnull align 4 dereferenceable(8) %4)
  %10 = sub i32 %7, %9
  %11 = add i32 %10, 1
  %12 = zext i32 %11 to i64
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret i64 %12
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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"}


; 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.chen::ip_version4" = type { %"class.chen::ip_version", i32 }
%"class.chen::ip_version" = type { i8 }

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK4chen11ip_version44addrEv(ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZNK4chen11ip_version47minhostEv(ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZNK4chen11ip_version47maxhostEv(ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef range(i64 0, 4294967296) i64 @_ZNK4chen11ip_version45hostsEv(ptr noundef nonnull align 4 dereferenceable(8) %0) local_unnamed_addr #2 align 2 {
  %2 = alloca %"class.chen::ip_version4", align 8
  %3 = alloca %"class.chen::ip_version4", align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  %4 = tail call i64 @_ZNK4chen11ip_version47maxhostEv(ptr noundef nonnull align 4 dereferenceable(8) %0)
  store i64 %4, ptr %2, align 8
  %5 = call noundef i32 @_ZNK4chen11ip_version44addrEv(ptr noundef nonnull align 4 dereferenceable(8) %2)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %6 = call i64 @_ZNK4chen11ip_version47minhostEv(ptr noundef nonnull align 4 dereferenceable(8) %0)
  store i64 %6, ptr %3, align 8
  %7 = call noundef i32 @_ZNK4chen11ip_version44addrEv(ptr noundef nonnull align 4 dereferenceable(8) %3)
  %8 = add i32 %5, 1
  %9 = sub i32 %8, %7
  %10 = zext i32 %9 to i64
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  ret i64 %10
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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)"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,ReassociatePass,SROAPass,TailCallElimPass