; LLVM IR from shixiongfei/nio4c :: nio4c_monitor (monitor_addinterest)

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

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

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

; Function Attrs: nounwind uwtable
define dso_local i32 @monitor_addinterest(ptr noundef %0, i32 noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  %7 = call i32 @monitor_closed(ptr noundef %6)
  %8 = icmp ne i32 %7, 0
  br i1 %8, label %9, label %10

9:                                                ; preds = %2
  store i32 -1, ptr %3, align 4
  br label %27

10:                                               ; preds = %2
  %11 = load i32, ptr %5, align 4, !tbaa !9
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.niomonitor_s, ptr %12, i32 0, i32 3
  %14 = load i32, ptr %13, align 8, !tbaa !11
  %15 = load i32, ptr %5, align 4, !tbaa !9
  %16 = and i32 %14, %15
  %17 = icmp eq i32 %11, %16
  br i1 %17, label %18, label %19

18:                                               ; preds = %10
  store i32 0, ptr %3, align 4
  br label %27

19:                                               ; preds = %10
  %20 = load i32, ptr %5, align 4, !tbaa !9
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.niomonitor_s, ptr %21, i32 0, i32 3
  %23 = load i32, ptr %22, align 8, !tbaa !11
  %24 = or i32 %23, %20
  store i32 %24, ptr %22, align 8, !tbaa !11
  %25 = load ptr, ptr %4, align 8, !tbaa !5
  %26 = call i32 @monitor_resetinterests(ptr noundef %25)
  store i32 %26, ptr %3, align 4
  br label %27

27:                                               ; preds = %19, %18, %9
  %28 = load i32, ptr %3, align 4
  ret i32 %28
}

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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 24}
!12 = !{!"niomonitor_s", !6, i64 0, !6, i64 8, !6, i64 16, !10, i64 24, !10, i64 28, !10, i64 32}


; 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: nounwind uwtable
declare dso_local i32 @monitor_closed(ptr noundef) local_unnamed_addr #0

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

; Function Attrs: nounwind uwtable
define dso_local i32 @monitor_addinterest(ptr noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = tail call i32 @monitor_closed(ptr noundef %0)
  %.not = icmp eq i32 %3, 0
  br i1 %.not, label %4, label %12

4:                                                ; preds = %2
  %5 = getelementptr inbounds i8, ptr %0, i64 24
  %6 = load i32, ptr %5, align 8, !tbaa !5
  %7 = and i32 %6, %1
  %8 = icmp eq i32 %7, %1
  br i1 %8, label %12, label %9

9:                                                ; preds = %4
  %10 = or i32 %6, %1
  store i32 %10, ptr %5, align 8, !tbaa !5
  %11 = tail call i32 @monitor_resetinterests(ptr noundef nonnull %0)
  br label %12

12:                                               ; preds = %4, %2, %9
  %.0 = phi i32 [ %11, %9 ], [ -1, %2 ], [ 0, %4 ]
  ret i32 %.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" }

!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, !10, i64 24}
!6 = !{!"niomonitor_s", !7, i64 0, !7, i64 8, !7, i64 16, !10, i64 24, !10, i64 28, !10, i64 32}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InstCombinePass,SROAPass,SimplifyCFGPass,TailCallElimPass