; LLVM IR from iovisor/gobpf :: elf (netlink)

; 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.anon = type { %struct.nlmsghdr, %struct.ifinfomsg, [64 x i8] }
%struct.nlmsghdr = type { i32, i16, i16, i32, i32 }
%struct.ifinfomsg = type { i8, i8, i16, i32, i32, i32 }
%struct.nlattr = type { i16, i16 }

; Function Attrs: nounwind uwtable
declare dso_local i32 @libbpf_netlink_open(ptr noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

; Function Attrs: nounwind willreturn memory(none)
declare ptr @__errno_location() #3

declare i32 @close(i32 noundef) #4

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @bpf_set_link_xdp_fd(i32 noundef %0, i32 noundef %1, i32 noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca ptr, align 8
  %12 = alloca ptr, align 8
  %13 = alloca %struct.anon, align 4
  %14 = alloca i32, align 4
  %15 = alloca i32, align 4
  store i32 %0, ptr %5, align 4, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !5
  store i32 %2, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #6
  store i32 0, ptr %9, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #6
  call void @llvm.lifetime.start.p0(i64 96, ptr %13) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #6
  %16 = call i32 @libbpf_netlink_open(ptr noundef %14)
  store i32 %16, ptr %8, align 4, !tbaa !5
  %17 = load i32, ptr %8, align 4, !tbaa !5
  %18 = icmp slt i32 %17, 0
  br i1 %18, label %19, label %21

19:                                               ; preds = %3
  %20 = load i32, ptr %8, align 4, !tbaa !5
  store i32 %20, ptr %4, align 4
  store i32 1, ptr %15, align 4
  br label %132

21:                                               ; preds = %3
  call void @llvm.memset.p0.i64(ptr align 4 %13, i8 0, i64 96, i1 false)
  %22 = getelementptr inbounds %struct.anon, ptr %13, i32 0, i32 0
  %23 = getelementptr inbounds %struct.nlmsghdr, ptr %22, i32 0, i32 0
  store i32 32, ptr %23, align 4, !tbaa !9
  %24 = getelementptr inbounds %struct.anon, ptr %13, i32 0, i32 0
  %25 = getelementptr inbounds %struct.nlmsghdr, ptr %24, i32 0, i32 2
  store i16 5, ptr %25, align 2, !tbaa !14
  %26 = getelementptr inbounds %struct.anon, ptr %13, i32 0, i32 0
  %27 = getelementptr inbounds %struct.nlmsghdr, ptr %26, i32 0, i32 1
  store i16 19, ptr %27, align 4, !tbaa !15
  %28 = getelementptr inbounds %struct.anon, ptr %13, i32 0, i32 0
  %29 = getelementptr inbounds %struct.nlmsghdr, ptr %28, i32 0, i32 4
  store i32 0, ptr %29, align 4, !tbaa !16
  %30 = load i32, ptr %9, align 4, !tbaa !5
  %31 = add nsw i32 %30, 1
  store i32 %31, ptr %9, align 4, !tbaa !5
  %32 = getelementptr inbounds %struct.anon, ptr %13, i32 0, i32 0
  %33 = getelementptr inbounds %struct.nlmsghdr, ptr %32, i32 0, i32 3
  store i32 %31, ptr %33, align 4, !tbaa !17
  %34 = getelementptr inbounds %struct.anon, ptr %13, i32 0, i32 1
  %35 = getelementptr inbounds %struct.ifinfomsg, ptr %34, i32 0, i32 0
  store i8 0, ptr %35, align 4, !tbaa !18
  %36 = load i32, ptr %5, align 4, !tbaa !5
  %37 = getelementptr inbounds %struct.anon, ptr %13, i32 0, i32 1
  %38 = getelementptr inbounds %struct.ifinfomsg, ptr %37, i32 0, i32 3
  store i32 %36, ptr %38, align 4, !tbaa !19
  %39 = getelementptr inbounds %struct.anon, ptr %13, i32 0, i32 0
  %40 = getelementptr inbounds %struct.nlmsghdr, ptr %39, i32 0, i32 0
  %41 = load i32, ptr %40, align 4, !tbaa !9
  %42 = add i32 %41, 4
  %43 = sub i32 %42, 1
  %44 = and i32 %43, -4
  %45 = zext i32 %44 to i64
  %46 = getelementptr inbounds i8, ptr %13, i64 %45
  store ptr %46, ptr %11, align 8, !tbaa !20
  %47 = load ptr, ptr %11, align 8, !tbaa !20
  %48 = getelementptr inbounds %struct.nlattr, ptr %47, i32 0, i32 1
  store i16 -32725, ptr %48, align 2, !tbaa !22
  %49 = load ptr, ptr %11, align 8, !tbaa !20
  %50 = getelementptr inbounds %struct.nlattr, ptr %49, i32 0, i32 0
  store i16 4, ptr %50, align 2, !tbaa !24
  %51 = load ptr, ptr %11, align 8, !tbaa !20
  %52 = load ptr, ptr %11, align 8, !tbaa !20
  %53 = getelementptr inbounds %struct.nlattr, ptr %52, i32 0, i32 0
  %54 = load i16, ptr %53, align 2, !tbaa !24
  %55 = zext i16 %54 to i32
  %56 = sext i32 %55 to i64
  %57 = getelementptr inbounds i8, ptr %51, i64 %56
  store ptr %57, ptr %12, align 8, !tbaa !20
  %58 = load ptr, ptr %12, align 8, !tbaa !20
  %59 = getelementptr inbounds %struct.nlattr, ptr %58, i32 0, i32 1
  store i16 1, ptr %59, align 2, !tbaa !22
  %60 = load ptr, ptr %12, align 8, !tbaa !20
  %61 = getelementptr inbounds %struct.nlattr, ptr %60, i32 0, i32 0
  store i16 8, ptr %61, align 2, !tbaa !24
  %62 = load ptr, ptr %12, align 8, !tbaa !20
  %63 = getelementptr inbounds i8, ptr %62, i64 4
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %63, ptr align 4 %6, i64 4, i1 false)
  %64 = load ptr, ptr %12, align 8, !tbaa !20
  %65 = getelementptr inbounds %struct.nlattr, ptr %64, i32 0, i32 0
  %66 = load i16, ptr %65, align 2, !tbaa !24
  %67 = zext i16 %66 to i32
  %68 = load ptr, ptr %11, align 8, !tbaa !20
  %69 = getelementptr inbounds %struct.nlattr, ptr %68, i32 0, i32 0
  %70 = load i16, ptr %69, align 2, !tbaa !24
  %71 = zext i16 %70 to i32
  %72 = add nsw i32 %71, %67
  %73 = trunc i32 %72 to i16
  store i16 %73, ptr %69, align 2, !tbaa !24
  %74 = load i32, ptr %7, align 4, !tbaa !5
  %75 = icmp ne i32 %74, 0
  br i1 %75, label %76, label %100

76:                                               ; preds = %21
  %77 = load ptr, ptr %11, align 8, !tbaa !20
  %78 = load ptr, ptr %11, align 8, !tbaa !20
  %79 = getelementptr inbounds %struct.nlattr, ptr %78, i32 0, i32 0
  %80 = load i16, ptr %79, align 2, !tbaa !24
  %81 = zext i16 %80 to i32
  %82 = sext i32 %81 to i64
  %83 = getelementptr inbounds i8, ptr %77, i64 %82
  store ptr %83, ptr %12, align 8, !tbaa !20
  %84 = load ptr, ptr %12, align 8, !tbaa !20
  %85 = getelementptr inbounds %struct.nlattr, ptr %84, i32 0, i32 1
  store i16 3, ptr %85, align 2, !tbaa !22
  %86 = load ptr, ptr %12, align 8, !tbaa !20
  %87 = getelementptr inbounds %struct.nlattr, ptr %86, i32 0, i32 0
  store i16 8, ptr %87, align 2, !tbaa !24
  %88 = load ptr, ptr %12, align 8, !tbaa !20
  %89 = getelementptr inbounds i8, ptr %88, i64 4
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %89, ptr align 4 %7, i64 4, i1 false)
  %90 = load ptr, ptr %12, align 8, !tbaa !20
  %91 = getelementptr inbounds %struct.nlattr, ptr %90, i32 0, i32 0
  %92 = load i16, ptr %91, align 2, !tbaa !24
  %93 = zext i16 %92 to i32
  %94 = load ptr, ptr %11, align 8, !tbaa !20
  %95 = getelementptr inbounds %struct.nlattr, ptr %94, i32 0, i32 0
  %96 = load i16, ptr %95, align 2, !tbaa !24
  %97 = zext i16 %96 to i32
  %98 = add nsw i32 %97, %93
  %99 = trunc i32 %98 to i16
  store i16 %99, ptr %95, align 2, !tbaa !24
  br label %100

100:                                              ; preds = %76, %21
  %101 = load ptr, ptr %11, align 8, !tbaa !20
  %102 = getelementptr inbounds %struct.nlattr, ptr %101, i32 0, i32 0
  %103 = load i16, ptr %102, align 2, !tbaa !24
  %104 = zext i16 %103 to i32
  %105 = add nsw i32 %104, 4
  %106 = sub nsw i32 %105, 1
  %107 = and i32 %106, -4
  %108 = getelementptr inbounds %struct.anon, ptr %13, i32 0, i32 0
  %109 = getelementptr inbounds %struct.nlmsghdr, ptr %108, i32 0, i32 0
  %110 = load i32, ptr %109, align 4, !tbaa !9
  %111 = add i32 %110, %107
  store i32 %111, ptr %109, align 4, !tbaa !9
  %112 = load i32, ptr %8, align 4, !tbaa !5
  %113 = getelementptr inbounds %struct.anon, ptr %13, i32 0, i32 0
  %114 = getelementptr inbounds %struct.nlmsghdr, ptr %113, i32 0, i32 0
  %115 = load i32, ptr %114, align 4, !tbaa !9
  %116 = zext i32 %115 to i64
  %117 = call i64 @send(i32 noundef %112, ptr noundef %13, i64 noundef %116, i32 noundef 0)
  %118 = icmp slt i64 %117, 0
  br i1 %118, label %119, label %123

119:                                              ; preds = %100
  %120 = call ptr @__errno_location() #7
  %121 = load i32, ptr %120, align 4, !tbaa !5
  %122 = sub nsw i32 0, %121
  store i32 %122, ptr %10, align 4, !tbaa !5
  br label %128

123:                                              ; preds = %100
  %124 = load i32, ptr %8, align 4, !tbaa !5
  %125 = load i32, ptr %14, align 4, !tbaa !5
  %126 = load i32, ptr %9, align 4, !tbaa !5
  %127 = call i32 @bpf_netlink_recv(i32 noundef %124, i32 noundef %125, i32 noundef %126, ptr noundef null, ptr noundef null, ptr noundef null)
  store i32 %127, ptr %10, align 4, !tbaa !5
  br label %128

128:                                              ; preds = %123, %119
  %129 = load i32, ptr %8, align 4, !tbaa !5
  %130 = call i32 @close(i32 noundef %129)
  %131 = load i32, ptr %10, align 4, !tbaa !5
  store i32 %131, ptr %4, align 4
  store i32 1, ptr %15, align 4
  br label %132

132:                                              ; preds = %128, %19
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #6
  call void @llvm.lifetime.end.p0(i64 96, ptr %13) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #6
  %133 = load i32, ptr %4, align 4
  ret i32 %133
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #5

declare i64 @send(i32 noundef, ptr noundef, i64 noundef, i32 noundef) #4

; Function Attrs: nounwind uwtable
declare hidden i32 @bpf_netlink_recv(i32 noundef, i32 noundef, i32 noundef, ptr noundef, ptr noundef, ptr noundef) #0

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" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { nounwind willreturn memory(none) "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 #4 = { "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 #5 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #6 = { nounwind }
attributes #7 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"", !11, i64 0, !13, i64 16, !7, i64 32}
!11 = !{!"nlmsghdr", !6, i64 0, !12, i64 4, !12, i64 6, !6, i64 8, !6, i64 12}
!12 = !{!"short", !7, i64 0}
!13 = !{!"ifinfomsg", !7, i64 0, !7, i64 1, !12, i64 2, !6, i64 4, !6, i64 8, !6, i64 12}
!14 = !{!10, !12, i64 6}
!15 = !{!10, !12, i64 4}
!16 = !{!10, !6, i64 12}
!17 = !{!10, !6, i64 8}
!18 = !{!10, !7, i64 16}
!19 = !{!10, !6, i64 20}
!20 = !{!21, !21, i64 0}
!21 = !{!"any pointer", !7, i64 0}
!22 = !{!23, !12, i64 2}
!23 = !{!"nlattr", !12, i64 0, !12, i64 2}
!24 = !{!23, !12, 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"

%struct.anon = type { %struct.nlmsghdr, %struct.ifinfomsg, [64 x i8] }
%struct.nlmsghdr = type { i32, i16, i16, i32, i32 }
%struct.ifinfomsg = type { i8, i8, i16, i32, i32, i32 }

; Function Attrs: nounwind uwtable
declare dso_local i32 @libbpf_netlink_open(ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

; Function Attrs: mustprogress nofree nosync nounwind willreturn memory(none)
declare ptr @__errno_location() local_unnamed_addr #3

declare i32 @close(i32 noundef) local_unnamed_addr #4

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @bpf_set_link_xdp_fd(i32 noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = alloca %struct.anon, align 4
  %5 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 96, ptr nonnull %4) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #5
  %6 = call i32 @libbpf_netlink_open(ptr noundef nonnull %5)
  %7 = icmp slt i32 %6, 0
  br i1 %7, label %33, label %8

8:                                                ; preds = %3
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 4 dereferenceable(96) %4, i8 0, i64 96, i1 false)
  %9 = getelementptr inbounds i8, ptr %4, i64 6
  store i16 5, ptr %9, align 2, !tbaa !5
  %10 = getelementptr inbounds i8, ptr %4, i64 4
  store i16 19, ptr %10, align 4, !tbaa !13
  %11 = getelementptr inbounds i8, ptr %4, i64 8
  store i32 1, ptr %11, align 4, !tbaa !14
  %12 = getelementptr inbounds i8, ptr %4, i64 20
  store i32 %0, ptr %12, align 4, !tbaa !15
  %13 = getelementptr inbounds i8, ptr %4, i64 32
  %14 = getelementptr inbounds i8, ptr %4, i64 40
  store i32 %1, ptr %14, align 4
  store <4 x i16> <i16 12, i16 -32725, i16 8, i16 1>, ptr %13, align 4, !tbaa !16
  %.not = icmp eq i32 %2, 0
  br i1 %.not, label %19, label %15

15:                                               ; preds = %8
  %16 = getelementptr inbounds i8, ptr %4, i64 44
  %17 = getelementptr inbounds i8, ptr %4, i64 46
  store i16 3, ptr %17, align 2, !tbaa !17
  store i16 8, ptr %16, align 4, !tbaa !19
  %18 = getelementptr inbounds i8, ptr %4, i64 48
  store i32 %2, ptr %18, align 4
  store i16 20, ptr %13, align 4, !tbaa !19
  br label %19

19:                                               ; preds = %15, %8
  %20 = phi i32 [ 52, %15 ], [ 44, %8 ]
  store i32 %20, ptr %4, align 4, !tbaa !20
  %21 = zext nneg i32 %20 to i64
  %22 = call i64 @send(i32 noundef %6, ptr noundef nonnull %4, i64 noundef %21, i32 noundef 0) #5
  %23 = icmp slt i64 %22, 0
  br i1 %23, label %24, label %28

24:                                               ; preds = %19
  %25 = tail call ptr @__errno_location() #6
  %26 = load i32, ptr %25, align 4, !tbaa !21
  %27 = sub nsw i32 0, %26
  br label %31

28:                                               ; preds = %19
  %29 = load i32, ptr %5, align 4, !tbaa !21
  %30 = call i32 @bpf_netlink_recv(i32 noundef %6, i32 noundef %29, i32 noundef 1, ptr noundef null, ptr noundef null, ptr noundef null)
  br label %31

31:                                               ; preds = %28, %24
  %.028 = phi i32 [ %27, %24 ], [ %30, %28 ]
  %32 = call i32 @close(i32 noundef %6) #5
  br label %33

33:                                               ; preds = %3, %31
  %.0 = phi i32 [ %.028, %31 ], [ %6, %3 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #5
  call void @llvm.lifetime.end.p0(i64 96, ptr nonnull %4) #5
  ret i32 %.0
}

declare i64 @send(i32 noundef, ptr noundef, i64 noundef, i32 noundef) local_unnamed_addr #4

; Function Attrs: nounwind uwtable
declare hidden i32 @bpf_netlink_recv(i32 noundef, i32 noundef, i32 noundef, ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #0

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" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { mustprogress nofree nosync nounwind willreturn memory(none) "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 #4 = { "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 #5 = { nounwind }
attributes #6 = { 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, !11, i64 6}
!6 = !{!"", !7, i64 0, !12, i64 16, !9, i64 32}
!7 = !{!"nlmsghdr", !8, i64 0, !11, i64 4, !11, i64 6, !8, i64 8, !8, i64 12}
!8 = !{!"int", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C/C++ TBAA"}
!11 = !{!"short", !9, i64 0}
!12 = !{!"ifinfomsg", !9, i64 0, !9, i64 1, !11, i64 2, !8, i64 4, !8, i64 8, !8, i64 12}
!13 = !{!6, !11, i64 4}
!14 = !{!6, !8, i64 8}
!15 = !{!6, !8, i64 20}
!16 = !{!11, !11, i64 0}
!17 = !{!18, !11, i64 2}
!18 = !{!"nlattr", !11, i64 0, !11, i64 2}
!19 = !{!18, !11, i64 0}
!20 = !{!6, !8, i64 0}
!21 = !{!8, !8, i64 0}


; Effective O3 passes: CorrelatedValuePropagationPass,DSEPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,SCCPPass,SLPVectorizerPass,SROAPass,SimplifyCFGPass,TailCallElimPass