; LLVM IR from uNetworking/uSockets :: examples (echo_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.us_socket_context_options_t = type { ptr, ptr, ptr, ptr, ptr, ptr, i32 }

@.str.4 = external hidden unnamed_addr constant [46 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [47 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [27 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [19 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local void @on_wakeup(ptr noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local void @on_pre(ptr noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local void @on_post(ptr noundef) #0

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

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

declare i32 @printf(ptr noundef, ...) #2

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

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

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

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

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca ptr, align 8
  %3 = alloca %struct.us_socket_context_options_t, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #4
  %6 = call ptr @us_create_loop(ptr noundef null, ptr noundef @on_wakeup, ptr noundef @on_pre, ptr noundef @on_post, i32 noundef 0)
  store ptr %6, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 56, ptr %3) #4
  call void @llvm.memset.p0.i64(ptr align 8 %3, i8 0, i64 56, i1 false)
  %7 = getelementptr inbounds %struct.us_socket_context_options_t, ptr %3, i32 0, i32 0
  store ptr @.str.4, ptr %7, align 8, !tbaa !9
  %8 = getelementptr inbounds %struct.us_socket_context_options_t, ptr %3, i32 0, i32 1
  store ptr @.str.5, ptr %8, align 8, !tbaa !12
  %9 = getelementptr inbounds %struct.us_socket_context_options_t, ptr %3, i32 0, i32 2
  store ptr @.str.6, ptr %9, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #4
  %10 = load ptr, ptr %2, align 8, !tbaa !5
  %11 = call ptr @us_create_socket_context(i32 noundef 1, ptr noundef %10, i32 noundef 0, ptr noundef byval(%struct.us_socket_context_options_t) align 8 %3)
  store ptr %11, ptr %4, align 8, !tbaa !5
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  call void @us_socket_context_on_open(i32 noundef 1, ptr noundef %12, ptr noundef @on_echo_socket_open)
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  call void @us_socket_context_on_data(i32 noundef 1, ptr noundef %13, ptr noundef @on_echo_socket_data)
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  call void @us_socket_context_on_writable(i32 noundef 1, ptr noundef %14, ptr noundef @on_echo_socket_writable)
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  call void @us_socket_context_on_close(i32 noundef 1, ptr noundef %15, ptr noundef @on_echo_socket_close)
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  call void @us_socket_context_on_timeout(i32 noundef 1, ptr noundef %16, ptr noundef @on_echo_socket_timeout)
  %17 = load ptr, ptr %4, align 8, !tbaa !5
  call void @us_socket_context_on_end(i32 noundef 1, ptr noundef %17, ptr noundef @on_echo_socket_end)
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  %19 = call ptr @us_socket_context_listen(i32 noundef 1, ptr noundef %18, ptr noundef null, i32 noundef 3000, i32 noundef 0, i32 noundef 16)
  store ptr %19, ptr %5, align 8, !tbaa !5
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = icmp ne ptr %20, null
  br i1 %21, label %22, label %25

22:                                               ; preds = %0
  %23 = call i32 (ptr, ...) @printf(ptr noundef @.str.7)
  %24 = load ptr, ptr %2, align 8, !tbaa !5
  call void @us_loop_run(ptr noundef %24)
  br label %27

25:                                               ; preds = %0
  %26 = call i32 (ptr, ...) @printf(ptr noundef @.str.8)
  br label %27

27:                                               ; preds = %25, %22
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 56, ptr %3) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #4
  %28 = load i32, ptr %1, align 4
  ret i32 %28
}

declare ptr @us_create_loop(ptr noundef, ptr noundef, ptr noundef, ptr noundef, i32 noundef) #2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #3

declare ptr @us_create_socket_context(i32 noundef, ptr noundef, i32 noundef, ptr noundef byval(%struct.us_socket_context_options_t) align 8) #2

declare void @us_socket_context_on_open(i32 noundef, ptr noundef, ptr noundef) #2

declare void @us_socket_context_on_data(i32 noundef, ptr noundef, ptr noundef) #2

declare void @us_socket_context_on_writable(i32 noundef, ptr noundef, ptr noundef) #2

declare void @us_socket_context_on_close(i32 noundef, ptr noundef, ptr noundef) #2

declare void @us_socket_context_on_timeout(i32 noundef, ptr noundef, ptr noundef) #2

declare void @us_socket_context_on_end(i32 noundef, ptr noundef, ptr noundef) #2

declare ptr @us_socket_context_listen(i32 noundef, ptr noundef, ptr noundef, i32 noundef, i32 noundef, i32 noundef) #2

declare void @us_loop_run(ptr noundef) #2

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 = { "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 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #4 = { 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, !6, i64 0}
!10 = !{!"us_socket_context_options_t", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !11, i64 48}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, i64 8}
!13 = !{!10, !6, i64 16}


; 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.us_socket_context_options_t = type { ptr, ptr, ptr, ptr, ptr, ptr, i32 }

@.str.4 = external hidden unnamed_addr constant [46 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [47 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [27 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [19 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local void @on_wakeup(ptr noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local void @on_pre(ptr noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local void @on_post(ptr noundef) #0

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

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

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

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

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

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

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

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca %struct.us_socket_context_options_t, align 8
  %2 = tail call ptr @us_create_loop(ptr noundef null, ptr noundef nonnull @on_wakeup, ptr noundef nonnull @on_pre, ptr noundef nonnull @on_post, i32 noundef 0) #5
  call void @llvm.lifetime.start.p0(i64 56, ptr nonnull %1) #5
  %3 = getelementptr inbounds i8, ptr %1, i64 24
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(56) %3, i8 0, i64 32, i1 false)
  store ptr @.str.4, ptr %1, align 8, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %1, i64 8
  store ptr @.str.5, ptr %4, align 8, !tbaa !11
  %5 = getelementptr inbounds i8, ptr %1, i64 16
  store ptr @.str.6, ptr %5, align 8, !tbaa !12
  %6 = tail call ptr @us_create_socket_context(i32 noundef 1, ptr noundef %2, i32 noundef 0, ptr noundef nonnull byval(%struct.us_socket_context_options_t) align 8 %1) #5
  tail call void @us_socket_context_on_open(i32 noundef 1, ptr noundef %6, ptr noundef nonnull @on_echo_socket_open) #5
  tail call void @us_socket_context_on_data(i32 noundef 1, ptr noundef %6, ptr noundef nonnull @on_echo_socket_data) #5
  tail call void @us_socket_context_on_writable(i32 noundef 1, ptr noundef %6, ptr noundef nonnull @on_echo_socket_writable) #5
  tail call void @us_socket_context_on_close(i32 noundef 1, ptr noundef %6, ptr noundef nonnull @on_echo_socket_close) #5
  tail call void @us_socket_context_on_timeout(i32 noundef 1, ptr noundef %6, ptr noundef nonnull @on_echo_socket_timeout) #5
  tail call void @us_socket_context_on_end(i32 noundef 1, ptr noundef %6, ptr noundef nonnull @on_echo_socket_end) #5
  %7 = tail call ptr @us_socket_context_listen(i32 noundef 1, ptr noundef %6, ptr noundef null, i32 noundef 3000, i32 noundef 0, i32 noundef 16) #5
  %.not = icmp eq ptr %7, null
  br i1 %.not, label %10, label %8

8:                                                ; preds = %0
  %9 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.7)
  tail call void @us_loop_run(ptr noundef %2) #5
  br label %12

10:                                               ; preds = %0
  %11 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.8)
  br label %12

12:                                               ; preds = %10, %8
  call void @llvm.lifetime.end.p0(i64 56, ptr nonnull %1) #5
  ret i32 0
}

declare ptr @us_create_loop(ptr noundef, ptr noundef, ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #4

declare ptr @us_create_socket_context(i32 noundef, ptr noundef, i32 noundef, ptr noundef byval(%struct.us_socket_context_options_t) align 8) local_unnamed_addr #3

declare void @us_socket_context_on_open(i32 noundef, ptr noundef, ptr noundef) local_unnamed_addr #3

declare void @us_socket_context_on_data(i32 noundef, ptr noundef, ptr noundef) local_unnamed_addr #3

declare void @us_socket_context_on_writable(i32 noundef, ptr noundef, ptr noundef) local_unnamed_addr #3

declare void @us_socket_context_on_close(i32 noundef, ptr noundef, ptr noundef) local_unnamed_addr #3

declare void @us_socket_context_on_timeout(i32 noundef, ptr noundef, ptr noundef) local_unnamed_addr #3

declare void @us_socket_context_on_end(i32 noundef, ptr noundef, ptr noundef) local_unnamed_addr #3

declare ptr @us_socket_context_listen(i32 noundef, ptr noundef, ptr noundef, i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #3

declare void @us_loop_run(ptr noundef) local_unnamed_addr #3

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 = { nofree nounwind "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 = { "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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #5 = { 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, !7, i64 0}
!6 = !{!"us_socket_context_options_t", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !7, i64 40, !10, i64 48}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !7, i64 8}
!12 = !{!6, !7, i64 16}


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