; LLVM IR from fmela/libdict :: src (hashtable)

; 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.itor_vtable = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }
%struct.dict_itor = type { ptr, ptr }

@dict_malloc_func = external global ptr, align 8
@dict_free_func = external global ptr, align 8
@hashtable_itor_vtable = external hidden constant %struct.itor_vtable, align 8

; 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 @hashtable_itor_new(ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local ptr @hashtable_dict_itor_new(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 = load ptr, ptr @dict_malloc_func, align 8, !tbaa !5
  %7 = call ptr %6(i64 noundef 16)
  store ptr %7, ptr %4, align 8, !tbaa !5
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = icmp ne ptr %8, null
  br i1 %9, label %10, label %22

10:                                               ; preds = %1
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = call ptr @hashtable_itor_new(ptr noundef %11)
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.dict_itor, ptr %13, i32 0, i32 0
  store ptr %12, ptr %14, align 8, !tbaa !9
  %15 = icmp ne ptr %12, null
  br i1 %15, label %19, label %16

16:                                               ; preds = %10
  %17 = load ptr, ptr @dict_free_func, align 8, !tbaa !5
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  call void %17(ptr noundef %18)
  store ptr null, ptr %2, align 8
  store i32 1, ptr %5, align 4
  br label %24

19:                                               ; preds = %10
  %20 = load ptr, ptr %4, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.dict_itor, ptr %20, i32 0, i32 1
  store ptr @hashtable_itor_vtable, ptr %21, align 8, !tbaa !11
  br label %22

22:                                               ; preds = %19, %1
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %23, ptr %2, align 8
  store i32 1, ptr %5, align 4
  br label %24

24:                                               ; preds = %22, %16
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #2
  %25 = load ptr, ptr %2, align 8
  ret ptr %25
}

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 0}
!10 = !{!"dict_itor", !6, i64 0, !6, i64 8}
!11 = !{!10, !6, i64 8}


; 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"

%struct.itor_vtable = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }

@dict_malloc_func = external local_unnamed_addr global ptr, align 8
@dict_free_func = external local_unnamed_addr global ptr, align 8
@hashtable_itor_vtable = external hidden constant %struct.itor_vtable, align 8

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

; Function Attrs: nounwind uwtable
define dso_local ptr @hashtable_dict_itor_new(ptr noundef %0) local_unnamed_addr #0 {
  %2 = load ptr, ptr @dict_malloc_func, align 8, !tbaa !5
  %3 = tail call ptr %2(i64 noundef 16) #1
  %.not = icmp eq ptr %3, null
  br i1 %.not, label %10, label %4

4:                                                ; preds = %1
  %5 = tail call ptr @hashtable_itor_new(ptr noundef %0)
  store ptr %5, ptr %3, align 8, !tbaa !9
  %.not8 = icmp eq ptr %5, null
  br i1 %.not8, label %6, label %8

6:                                                ; preds = %4
  %7 = load ptr, ptr @dict_free_func, align 8, !tbaa !5
  tail call void %7(ptr noundef nonnull %3) #1
  br label %10

8:                                                ; preds = %4
  %9 = getelementptr inbounds i8, ptr %3, i64 8
  store ptr @hashtable_itor_vtable, ptr %9, align 8, !tbaa !11
  br label %10

10:                                               ; preds = %1, %8, %6
  %.0 = phi ptr [ null, %6 ], [ %3, %8 ], [ null, %1 ]
  ret ptr %.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" }
attributes #1 = { 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 0}
!10 = !{!"dict_itor", !6, i64 0, !6, i64 8}
!11 = !{!10, !6, i64 8}


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