; LLVM IR from maksimandrianov/cdcontainers :: src (avl-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"

%struct.cdc_avl_tree = type { ptr, i64, ptr }
%struct.cdc_data_info = type { ptr, ptr, ptr, ptr, ptr, i64, i64 }

@.str = external hidden unnamed_addr constant [10 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [77 x i8], align 1
@__PRETTY_FUNCTION__.cdc_avl_tree_erase = external hidden unnamed_addr constant [48 x i8], align 1

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr 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 hidden ptr @cdc_find_tree_node(ptr noundef, ptr noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local i64 @cdc_avl_tree_erase(ptr noundef %0, ptr noundef %1) #2 {
  %3 = alloca i64, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, 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 %11

10:                                               ; preds = %2
  br label %12

11:                                               ; preds = %2
  call void @__assert_fail(ptr noundef @.str, ptr noundef @.str.1, i32 noundef 478, ptr noundef @__PRETTY_FUNCTION__.cdc_avl_tree_erase) #3
  unreachable

12:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.cdc_avl_tree, ptr %13, i32 0, i32 0
  %15 = load ptr, ptr %14, align 8, !tbaa !9
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = load ptr, ptr %4, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.cdc_avl_tree, ptr %17, i32 0, i32 2
  %19 = load ptr, ptr %18, align 8, !tbaa !12
  %20 = getelementptr inbounds %struct.cdc_data_info, ptr %19, i32 0, i32 1
  %21 = load ptr, ptr %20, align 8, !tbaa !13
  %22 = call ptr @cdc_find_tree_node(ptr noundef %15, ptr noundef %16, ptr noundef %21)
  store ptr %22, ptr %6, align 8, !tbaa !5
  %23 = load ptr, ptr %6, align 8, !tbaa !5
  %24 = icmp ne ptr %23, null
  br i1 %24, label %26, label %25

25:                                               ; preds = %12
  store i64 0, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %36

26:                                               ; preds = %12
  %27 = load ptr, ptr %4, align 8, !tbaa !5
  %28 = load ptr, ptr %6, align 8, !tbaa !5
  %29 = call ptr @erase_node(ptr noundef %27, ptr noundef %28)
  %30 = load ptr, ptr %4, align 8, !tbaa !5
  %31 = getelementptr inbounds %struct.cdc_avl_tree, ptr %30, i32 0, i32 0
  store ptr %29, ptr %31, align 8, !tbaa !9
  %32 = load ptr, ptr %4, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.cdc_avl_tree, ptr %32, i32 0, i32 1
  %34 = load i64, ptr %33, align 8, !tbaa !15
  %35 = add i64 %34, -1
  store i64 %35, ptr %33, align 8, !tbaa !15
  store i64 1, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %36

36:                                               ; preds = %26, %25
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  %37 = load i64, ptr %3, align 8
  ret i64 %37
}

; Function Attrs: nounwind uwtable
declare hidden ptr @erase_node(ptr noundef, ptr noundef) #2

attributes #0 = { noreturn nounwind "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 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 #3 = { noreturn nounwind }
attributes #4 = { 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 = !{!"cdc_avl_tree", !6, i64 0, !11, i64 8, !6, i64 16}
!11 = !{!"long", !7, i64 0}
!12 = !{!10, !6, i64 16}
!13 = !{!14, !6, i64 8}
!14 = !{!"cdc_data_info", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !11, i64 40, !11, i64 48}
!15 = !{!10, !11, 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"

@.str = external hidden unnamed_addr constant [10 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [77 x i8], align 1
@__PRETTY_FUNCTION__.cdc_avl_tree_erase = external hidden unnamed_addr constant [48 x i8], align 1

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare hidden ptr @cdc_find_tree_node(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local range(i64 0, 2) i64 @cdc_avl_tree_erase(ptr noundef %0, ptr noundef %1) local_unnamed_addr #1 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %3, label %4

3:                                                ; preds = %2
  tail call void @__assert_fail(ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 478, ptr noundef nonnull @__PRETTY_FUNCTION__.cdc_avl_tree_erase) #2
  unreachable

4:                                                ; preds = %2
  %5 = load ptr, ptr %0, align 8, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %0, i64 16
  %7 = load ptr, ptr %6, align 8, !tbaa !11
  %8 = getelementptr inbounds i8, ptr %7, i64 8
  %9 = load ptr, ptr %8, align 8, !tbaa !12
  %10 = tail call ptr @cdc_find_tree_node(ptr noundef %5, ptr noundef %1, ptr noundef %9)
  %.not11 = icmp eq ptr %10, null
  br i1 %.not11, label %16, label %11

11:                                               ; preds = %4
  %12 = tail call ptr @erase_node(ptr noundef nonnull %0, ptr noundef nonnull %10)
  store ptr %12, ptr %0, align 8, !tbaa !5
  %13 = getelementptr inbounds i8, ptr %0, i64 8
  %14 = load i64, ptr %13, align 8, !tbaa !14
  %15 = add i64 %14, -1
  store i64 %15, ptr %13, align 8, !tbaa !14
  br label %16

16:                                               ; preds = %4, %11
  %.0 = phi i64 [ 1, %11 ], [ 0, %4 ]
  ret i64 %.0
}

; Function Attrs: nounwind uwtable
declare hidden ptr @erase_node(ptr noundef, ptr noundef) local_unnamed_addr #1

attributes #0 = { noreturn nounwind "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 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 = { noreturn 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 = !{!"cdc_avl_tree", !7, i64 0, !10, i64 8, !7, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!6, !7, i64 16}
!12 = !{!13, !7, i64 8}
!13 = !{!"cdc_data_info", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !10, i64 40, !10, i64 48}
!14 = !{!6, !10, i64 8}


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