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

; 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"

%"struct.std::array" = type { [16 x 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 uwtable
declare dso_local { i64, i64 } @_ZN4chen11ip_version67toBytesERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i8 @_ZN4chen11ip_version66toCIDRERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32) %0) #1 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca %"struct.std::array", align 1
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 16, ptr %3) #3
  %4 = load ptr, ptr %2, align 8, !tbaa !5
  %5 = call { i64, i64 } @_ZN4chen11ip_version67toBytesERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32) %4)
  %6 = getelementptr inbounds %"struct.std::array", ptr %3, i32 0, i32 0
  %7 = getelementptr inbounds { i64, i64 }, ptr %6, i32 0, i32 0
  %8 = extractvalue { i64, i64 } %5, 0
  store i64 %8, ptr %7, align 1
  %9 = getelementptr inbounds { i64, i64 }, ptr %6, i32 0, i32 1
  %10 = extractvalue { i64, i64 } %5, 1
  store i64 %10, ptr %9, align 1
  %11 = call noundef ptr @_ZNSt5arrayIhLm16EE4dataEv(ptr noundef nonnull align 1 dereferenceable(16) %3) #4
  %12 = call noundef zeroext i8 @_ZN4chen11ip_version66toCIDREPKh(ptr noundef %11)
  call void @llvm.lifetime.end.p0(i64 16, ptr %3) #3
  ret i8 %12
}

; Function Attrs: mustprogress nounwind willreturn memory(none) uwtable
declare dso_local noundef ptr @_ZNSt5arrayIhLm16EE4dataEv(ptr noundef nonnull align 1 dereferenceable(16)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i8 @_ZN4chen11ip_version66toCIDREPKh(ptr 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 = { mustprogress nounwind willreturn memory(none) 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 = { nounwind willreturn memory(none) }

!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"

%"struct.std::array" = type { [16 x 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 uwtable
declare dso_local { i64, i64 } @_ZN4chen11ip_version67toBytesERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i8 @_ZN4chen11ip_version66toCIDRERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32) %0) local_unnamed_addr #1 align 2 {
  %2 = alloca %"struct.std::array", align 8
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %2) #3
  %3 = tail call { i64, i64 } @_ZN4chen11ip_version67toBytesERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32) %0)
  %4 = extractvalue { i64, i64 } %3, 0
  store i64 %4, ptr %2, align 8
  %5 = getelementptr inbounds i8, ptr %2, i64 8
  %6 = extractvalue { i64, i64 } %3, 1
  store i64 %6, ptr %5, align 8
  %7 = call noundef ptr @_ZNSt5arrayIhLm16EE4dataEv(ptr noundef nonnull align 1 dereferenceable(16) %2) #4
  %8 = call noundef zeroext i8 @_ZN4chen11ip_version66toCIDREPKh(ptr noundef %7)
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %2) #3
  ret i8 %8
}

; Function Attrs: mustprogress nofree nosync nounwind willreturn memory(none) uwtable
declare dso_local noundef ptr @_ZNSt5arrayIhLm16EE4dataEv(ptr noundef nonnull align 1 dereferenceable(16)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i8 @_ZN4chen11ip_version66toCIDREPKh(ptr noundef) local_unnamed_addr #1 align 2

attributes #0 = { mustprogress 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 = { mustprogress nofree nosync nounwind willreturn memory(none) 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 = { nounwind willreturn memory(none) }

!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,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,TailCallElimPass