; LLVM IR from kala13x/libxutils :: src/net (sock)

; 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.XSocket = type { i32, %union.xsock_addr_t, i32, i32, i16, i32, i32, i32, i32, ptr }
%union.xsock_addr_t = type { %struct.sockaddr_in, [96 x i8] }
%struct.sockaddr_in = type { i16, i16, %struct.in_addr, [8 x i8] }
%struct.in_addr = type { i32 }

; Function Attrs: nounwind uwtable
define dso_local i32 @XSock_Check(ptr noundef %0) #0 {
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %5 = getelementptr inbounds %struct.XSocket, ptr %4, i32 0, i32 5
  %6 = load i32, ptr %5, align 8, !tbaa !9
  %7 = icmp eq i32 %6, -1
  br i1 %7, label %8, label %17

8:                                                ; preds = %1
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.XSocket, ptr %9, i32 0, i32 0
  %11 = load i32, ptr %10, align 8, !tbaa !13
  %12 = icmp eq i32 %11, 0
  br i1 %12, label %13, label %16

13:                                               ; preds = %8
  %14 = load ptr, ptr %3, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.XSocket, ptr %14, i32 0, i32 0
  store i32 3, ptr %15, align 8, !tbaa !13
  br label %16

16:                                               ; preds = %13, %8
  store i32 0, ptr %2, align 4
  br label %20

17:                                               ; preds = %1
  %18 = load ptr, ptr %3, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.XSocket, ptr %18, i32 0, i32 0
  store i32 0, ptr %19, align 8, !tbaa !13
  store i32 1, ptr %2, align 4
  br label %20

20:                                               ; preds = %17, %16
  %21 = load i32, ptr %2, align 4
  ret i32 %21
}

attributes #0 = { 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" }

!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 128}
!10 = !{!"XSocket", !11, i64 0, !7, i64 4, !11, i64 116, !11, i64 120, !12, i64 124, !11, i64 128, !11, i64 132, !11, i64 136, !11, i64 140, !6, i64 144}
!11 = !{!"int", !7, i64 0}
!12 = !{!"short", !7, i64 0}
!13 = !{!10, !11, 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: readwrite) uwtable
define dso_local range(i32 0, 2) i32 @XSock_Check(ptr nocapture noundef %0) local_unnamed_addr #0 {
  %2 = getelementptr inbounds i8, ptr %0, i64 128
  %3 = load i32, ptr %2, align 8, !tbaa !5
  %4 = icmp eq i32 %3, -1
  br i1 %4, label %5, label %.sink.split

5:                                                ; preds = %1
  %6 = load i32, ptr %0, align 8, !tbaa !12
  %7 = icmp eq i32 %6, 0
  br i1 %7, label %.sink.split, label %8

.sink.split:                                      ; preds = %1, %5
  %.sink = phi i32 [ 3, %5 ], [ 0, %1 ]
  %.0.ph = phi i32 [ 0, %5 ], [ 1, %1 ]
  store i32 %.sink, ptr %0, align 8, !tbaa !12
  br label %8

8:                                                ; preds = %.sink.split, %5
  %.0 = phi i32 [ 0, %5 ], [ %.0.ph, %.sink.split ]
  ret i32 %.0
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) 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 128}
!6 = !{!"XSocket", !7, i64 0, !8, i64 4, !7, i64 116, !7, i64 120, !10, i64 124, !7, i64 128, !7, i64 132, !7, i64 136, !7, i64 140, !11, i64 144}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"short", !8, i64 0}
!11 = !{!"any pointer", !8, i64 0}
!12 = !{!6, !7, i64 0}


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