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

; 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.ft_iterator = type { i64, i64, i64 }

; Function Attrs: nounwind uwtable
define dso_local ptr @ft_iterator_new(i64 noundef %0) #0 {
  %2 = alloca i64, align 8
  %3 = alloca ptr, align 8
  store i64 %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %4 = call noalias ptr @malloc(i64 noundef 24) #4
  store ptr %4, ptr %3, align 8, !tbaa !9
  %5 = load ptr, ptr %3, align 8, !tbaa !9
  %6 = getelementptr inbounds %struct.ft_iterator, ptr %5, i32 0, i32 0
  store i64 0, ptr %6, align 8, !tbaa !11
  %7 = load ptr, ptr %3, align 8, !tbaa !9
  %8 = getelementptr inbounds %struct.ft_iterator, ptr %7, i32 0, i32 1
  store i64 0, ptr %8, align 8, !tbaa !13
  %9 = load ptr, ptr %3, align 8, !tbaa !9
  %10 = getelementptr inbounds %struct.ft_iterator, ptr %9, i32 0, i32 2
  store i64 0, ptr %10, align 8, !tbaa !14
  %11 = load ptr, ptr %3, align 8, !tbaa !9
  %12 = load i64, ptr %2, align 8, !tbaa !5
  %13 = icmp ne i64 %12, 0
  br i1 %13, label %15, label %14

14:                                               ; preds = %1
  br label %15

15:                                               ; preds = %14, %1
  %16 = phi i1 [ true, %1 ], [ false, %14 ]
  %17 = zext i1 %16 to i32
  %18 = sext i32 %17 to i64
  call void @ft_iterator_seek(ptr noundef %11, i64 noundef %18)
  %19 = load ptr, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret ptr %19
}

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

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #2

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

; 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 = { nounwind allocsize(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 #3 = { nounwind }
attributes #4 = { nounwind allocsize(0) }

!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"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"ft_iterator", !6, i64 0, !6, i64 8, !6, i64 16}
!13 = !{!12, !6, i64 8}
!14 = !{!12, !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"

; Function Attrs: nounwind uwtable
define dso_local noundef ptr @ft_iterator_new(i64 noundef %0) local_unnamed_addr #0 {
  %calloc = tail call dereferenceable_or_null(24) ptr @calloc(i64 1, i64 24)
  %2 = icmp ne i64 %0, 0
  %3 = zext i1 %2 to i64
  tail call void @ft_iterator_seek(ptr noundef nonnull %calloc, i64 noundef %3)
  ret ptr %calloc
}

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

; Function Attrs: nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @calloc(i64 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 = { nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" }

!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)"}


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