; LLVM IR from goldsborough/ipc-bench :: source/tcp/other (server)

; 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.sockaddr = type { i16, [14 x i8] }
%struct.sockaddr_in = type { i16, i16, %struct.in_addr, [8 x i8] }
%struct.in_addr = type { i32 }
%struct.sockaddr_in6 = type { i16, i16, i32, %struct.in6_addr, i32 }
%struct.in6_addr = type { %union.anon }
%union.anon = type { [4 x 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: nounwind uwtable
define dso_local ptr @get_in_addr(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.sockaddr, ptr %6, i32 0, i32 0
  %8 = load i16, ptr %7, align 2, !tbaa !9
  %9 = zext i16 %8 to i32
  %10 = icmp eq i32 %9, 2
  br i1 %10, label %11, label %15

11:                                               ; preds = %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #2
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  store ptr %12, ptr %4, align 8, !tbaa !5
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.sockaddr_in, ptr %13, i32 0, i32 2
  store ptr %14, ptr %2, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #2
  br label %19

15:                                               ; preds = %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #2
  %16 = load ptr, ptr %3, align 8, !tbaa !5
  store ptr %16, ptr %5, align 8, !tbaa !5
  %17 = load ptr, ptr %5, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.sockaddr_in6, ptr %17, i32 0, i32 3
  store ptr %18, ptr %2, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  br label %19

19:                                               ; preds = %15, %11
  %20 = load ptr, ptr %2, align 8
  ret ptr %20
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = { 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/C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"sockaddr", !11, i64 0, !7, i64 2}
!11 = !{!"short", !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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) uwtable
define dso_local nonnull ptr @get_in_addr(ptr noundef readonly %0) local_unnamed_addr #0 {
  %2 = load i16, ptr %0, align 2, !tbaa !5
  %3 = icmp eq i16 %2, 2
  %.0.v = select i1 %3, i64 4, i64 8
  %.0 = getelementptr inbounds i8, ptr %0, i64 %.0.v
  ret ptr %.0
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) 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, !7, i64 0}
!6 = !{!"sockaddr", !7, i64 0, !8, i64 2}
!7 = !{!"short", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass