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

; 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
define dso_local ptr @monitor_new(ptr noundef %0, ptr noundef %1, i32 noundef %2, ptr noundef %3) #0 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store i32 %2, ptr %8, align 4, !tbaa !9
  store ptr %3, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  %12 = call ptr @nio_realloc(ptr noundef null, i64 noundef 40)
  store ptr %12, ptr %10, align 8, !tbaa !5
  %13 = load ptr, ptr %10, align 8, !tbaa !5
  %14 = icmp ne ptr %13, null
  br i1 %14, label %16, label %15

15:                                               ; preds = %4
  store ptr null, ptr %5, align 8
  store i32 1, ptr %11, align 4
  br label %34

16:                                               ; preds = %4
  %17 = load ptr, ptr %6, align 8, !tbaa !5
  %18 = load ptr, ptr %10, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.niomonitor_s, ptr %18, i32 0, i32 0
  store ptr %17, ptr %19, align 8, !tbaa !11
  %20 = load ptr, ptr %7, align 8, !tbaa !5
  %21 = load ptr, ptr %10, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.niomonitor_s, ptr %21, i32 0, i32 1
  store ptr %20, ptr %22, align 8, !tbaa !13
  %23 = load ptr, ptr %9, align 8, !tbaa !5
  %24 = load ptr, ptr %10, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.niomonitor_s, ptr %24, i32 0, i32 2
  store ptr %23, ptr %25, align 8, !tbaa !14
  %26 = load i32, ptr %8, align 4, !tbaa !9
  %27 = load ptr, ptr %10, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.niomonitor_s, ptr %27, i32 0, i32 3
  store i32 %26, ptr %28, align 8, !tbaa !15
  %29 = load ptr, ptr %10, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.niomonitor_s, ptr %29, i32 0, i32 4
  store i32 0, ptr %30, align 4, !tbaa !16
  %31 = load ptr, ptr %10, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.niomonitor_s, ptr %31, i32 0, i32 5
  store i32 0, ptr %32, align 8, !tbaa !17
  %33 = load ptr, ptr %10, align 8, !tbaa !5
  store ptr %33, ptr %5, align 8
  store i32 1, ptr %11, align 4
  br label %34

34:                                               ; preds = %16, %15
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  %35 = load ptr, ptr %5, align 8
  ret ptr %35
}

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

declare ptr @nio_realloc(ptr noundef, i64 noundef) #2

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

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 = { 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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"niomonitor_s", !6, i64 0, !6, i64 8, !6, i64 16, !10, i64 24, !10, i64 28, !10, i64 32}
!13 = !{!12, !6, i64 8}
!14 = !{!12, !6, i64 16}
!15 = !{!12, !10, i64 24}
!16 = !{!12, !10, i64 28}
!17 = !{!12, !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
define dso_local ptr @monitor_new(ptr noundef %0, ptr noundef %1, i32 noundef %2, ptr noundef %3) local_unnamed_addr #0 {
  %5 = tail call ptr @nio_realloc(ptr noundef null, i64 noundef 40) #2
  %.not = icmp eq ptr %5, null
  br i1 %.not, label %12, label %6

6:                                                ; preds = %4
  store ptr %0, ptr %5, align 8, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %5, i64 8
  store ptr %1, ptr %7, align 8, !tbaa !11
  %8 = getelementptr inbounds i8, ptr %5, i64 16
  store ptr %3, ptr %8, align 8, !tbaa !12
  %9 = getelementptr inbounds i8, ptr %5, i64 24
  store i32 %2, ptr %9, align 8, !tbaa !13
  %10 = getelementptr inbounds i8, ptr %5, i64 28
  store i32 0, ptr %10, align 4, !tbaa !14
  %11 = getelementptr inbounds i8, ptr %5, i64 32
  store i32 0, ptr %11, align 8, !tbaa !15
  br label %12

12:                                               ; preds = %4, %6
  ret ptr %5
}

declare ptr @nio_realloc(ptr noundef, i64 noundef) local_unnamed_addr #1

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 = { "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, !7, i64 0}
!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}
!11 = !{!6, !7, i64 8}
!12 = !{!6, !7, i64 16}
!13 = !{!6, !10, i64 24}
!14 = !{!6, !10, i64 28}
!15 = !{!6, !10, i64 32}


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