; LLVM IR from jwerle/libhypercore-crypto :: deps/flat-tree (flat-tree)

; 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"

; Function Attrs: nounwind uwtable
declare dso_local i64 @ft_depth(i64 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 i64 @ft_offset(i64 noundef, i64 noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local i64 @ft_index(i64 noundef, i64 noundef) #0

; Function Attrs: nounwind uwtable
define dso_local zeroext i1 @ft_children(ptr noundef %0, i64 noundef %1, i64 noundef %2) #0 {
  %4 = alloca i1, align 1
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i64 %1, ptr %6, align 8, !tbaa !9
  store i64 %2, ptr %7, align 8, !tbaa !9
  %9 = load i64, ptr %6, align 8, !tbaa !9
  %10 = and i64 %9, 1
  %11 = icmp eq i64 0, %10
  br i1 %11, label %12, label %13

12:                                               ; preds = %3
  store i1 false, ptr %4, align 1
  br label %37

13:                                               ; preds = %3
  %14 = load i64, ptr %7, align 8, !tbaa !9
  %15 = icmp eq i64 0, %14
  br i1 %15, label %16, label %19

16:                                               ; preds = %13
  %17 = load i64, ptr %6, align 8, !tbaa !9
  %18 = call i64 @ft_depth(i64 noundef %17)
  store i64 %18, ptr %7, align 8, !tbaa !9
  br label %19

19:                                               ; preds = %16, %13
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #2
  %20 = load i64, ptr %6, align 8, !tbaa !9
  %21 = load i64, ptr %7, align 8, !tbaa !9
  %22 = call i64 @ft_offset(i64 noundef %20, i64 noundef %21)
  %23 = mul i64 %22, 2
  store i64 %23, ptr %8, align 8, !tbaa !9
  %24 = load i64, ptr %7, align 8, !tbaa !9
  %25 = sub i64 %24, 1
  %26 = load i64, ptr %8, align 8, !tbaa !9
  %27 = call i64 @ft_index(i64 noundef %25, i64 noundef %26)
  %28 = load ptr, ptr %5, align 8, !tbaa !5
  %29 = getelementptr inbounds i64, ptr %28, i64 0
  store i64 %27, ptr %29, align 8, !tbaa !9
  %30 = load i64, ptr %7, align 8, !tbaa !9
  %31 = sub i64 %30, 1
  %32 = load i64, ptr %8, align 8, !tbaa !9
  %33 = add i64 %32, 1
  %34 = call i64 @ft_index(i64 noundef %31, i64 noundef %33)
  %35 = load ptr, ptr %5, align 8, !tbaa !5
  %36 = getelementptr inbounds i64, ptr %35, i64 1
  store i64 %34, ptr %36, align 8, !tbaa !9
  store i1 true, ptr %4, align 1
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #2
  br label %37

37:                                               ; preds = %19, %12
  %38 = load i1, ptr %4, align 1
  ret i1 %38
}

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 = { 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 = !{!"long long", !7, 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"

; Function Attrs: nounwind uwtable
declare dso_local i64 @ft_depth(i64 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local i64 @ft_offset(i64 noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local i64 @ft_index(i64 noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local noundef zeroext i1 @ft_children(ptr nocapture noundef writeonly %0, i64 noundef %1, i64 noundef %2) local_unnamed_addr #0 {
  %4 = and i64 %1, 1
  %5 = icmp ne i64 %4, 0
  br i1 %5, label %6, label %18

6:                                                ; preds = %3
  %7 = icmp eq i64 %2, 0
  br i1 %7, label %8, label %10

8:                                                ; preds = %6
  %9 = tail call i64 @ft_depth(i64 noundef %1)
  br label %10

10:                                               ; preds = %8, %6
  %.011 = phi i64 [ %9, %8 ], [ %2, %6 ]
  %11 = tail call i64 @ft_offset(i64 noundef %1, i64 noundef %.011)
  %12 = shl i64 %11, 1
  %13 = add i64 %.011, -1
  %14 = tail call i64 @ft_index(i64 noundef %13, i64 noundef %12)
  store i64 %14, ptr %0, align 8, !tbaa !5
  %15 = or disjoint i64 %12, 1
  %16 = tail call i64 @ft_index(i64 noundef %13, i64 noundef %15)
  %17 = getelementptr inbounds i8, ptr %0, i64 8
  store i64 %16, ptr %17, align 8, !tbaa !5
  br label %18

18:                                               ; preds = %3, %10
  ret i1 %5
}

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 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


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