; LLVM IR from Softmotions/iowow :: src/utils (iwpool)

; 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.iwpool = type { i64, i64, ptr, ptr, ptr, i32, ptr, ptr, ptr, ptr }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
declare dso_local ptr @iwpool_create_empty() #1

; Function Attrs: nounwind uwtable
define dso_local ptr @iwpool_create_empty_attach(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #2
  %6 = call ptr @iwpool_create_empty()
  store ptr %6, ptr %4, align 8, !tbaa !5
  %7 = load ptr, ptr %4, align 8, !tbaa !5
  %8 = icmp ne ptr %7, null
  br i1 %8, label %9, label %12

9:                                                ; preds = %1
  %10 = load ptr, ptr %3, align 8, !tbaa !5
  %11 = icmp ne ptr %10, null
  br i1 %11, label %14, label %12

12:                                               ; preds = %9, %1
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %13, ptr %2, align 8
  store i32 1, ptr %5, align 4
  br label %37

14:                                               ; preds = %9
  %15 = load ptr, ptr %3, align 8, !tbaa !5
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.iwpool, ptr %16, i32 0, i32 7
  store ptr %15, ptr %17, align 8, !tbaa !9
  %18 = load ptr, ptr %3, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.iwpool, ptr %18, i32 0, i32 8
  %20 = load ptr, ptr %19, align 8, !tbaa !13
  %21 = icmp ne ptr %20, null
  br i1 %21, label %26, label %22

22:                                               ; preds = %14
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = load ptr, ptr %3, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.iwpool, ptr %24, i32 0, i32 8
  store ptr %23, ptr %25, align 8, !tbaa !13
  br label %35

26:                                               ; preds = %14
  %27 = load ptr, ptr %3, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.iwpool, ptr %27, i32 0, i32 8
  %29 = load ptr, ptr %28, align 8, !tbaa !13
  %30 = load ptr, ptr %4, align 8, !tbaa !5
  %31 = getelementptr inbounds %struct.iwpool, ptr %30, i32 0, i32 9
  store ptr %29, ptr %31, align 8, !tbaa !14
  %32 = load ptr, ptr %4, align 8, !tbaa !5
  %33 = load ptr, ptr %3, align 8, !tbaa !5
  %34 = getelementptr inbounds %struct.iwpool, ptr %33, i32 0, i32 8
  store ptr %32, ptr %34, align 8, !tbaa !13
  br label %35

35:                                               ; preds = %26, %22
  %36 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %36, ptr %2, align 8
  store i32 1, ptr %5, align 4
  br label %37

37:                                               ; preds = %35, %12
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #2
  %38 = load ptr, ptr %2, align 8
  ret ptr %38
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !6, i64 56}
!10 = !{!"iwpool", !11, i64 0, !11, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !12, i64 40, !6, i64 48, !6, i64 56, !6, i64 64, !6, i64 72}
!11 = !{!"long", !7, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!10, !6, i64 64}
!14 = !{!10, !6, i64 72}


; 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 ptr @iwpool_create_empty() local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local ptr @iwpool_create_empty_attach(ptr noundef %0) local_unnamed_addr #0 {
  %2 = tail call ptr @iwpool_create_empty()
  %3 = icmp ne ptr %2, null
  %4 = icmp ne ptr %0, null
  %or.cond = and i1 %4, %3
  br i1 %or.cond, label %5, label %12

5:                                                ; preds = %1
  %6 = getelementptr inbounds i8, ptr %2, i64 56
  store ptr %0, ptr %6, align 8, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %0, i64 64
  %8 = load ptr, ptr %7, align 8, !tbaa !12
  %.not = icmp eq ptr %8, null
  br i1 %.not, label %11, label %9

9:                                                ; preds = %5
  %10 = getelementptr inbounds i8, ptr %2, i64 72
  store ptr %8, ptr %10, align 8, !tbaa !13
  br label %11

11:                                               ; preds = %5, %9
  store ptr %2, ptr %7, align 8, !tbaa !12
  br label %12

12:                                               ; preds = %1, %11
  ret ptr %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" }

!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 56}
!6 = !{!"iwpool", !7, i64 0, !7, i64 8, !10, i64 16, !10, i64 24, !10, i64 32, !11, i64 40, !10, i64 48, !10, i64 56, !10, i64 64, !10, i64 72}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!"int", !8, i64 0}
!12 = !{!6, !10, i64 64}
!13 = !{!6, !10, i64 72}


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