; LLVM IR from maksimandrianov/cdcontainers :: src (splay-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_splay_tree = type { ptr, i64, ptr }
%struct.cdc_data_info = type { ptr, ptr, ptr, ptr, ptr, i64, i64 }
%struct.cdc_splay_tree_node = type { ptr, ptr, ptr, ptr, ptr }

@.str = external hidden unnamed_addr constant [10 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [79 x i8], align 1
@__PRETTY_FUNCTION__.cdc_splay_tree_erase = external hidden unnamed_addr constant [52 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
define dso_local i64 @cdc_splay_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 472, ptr noundef @__PRETTY_FUNCTION__.cdc_splay_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_splay_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_splay_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 %64

26:                                               ; preds = %12
  %27 = load ptr, ptr %6, align 8, !tbaa !5
  %28 = call ptr @splay(ptr noundef %27)
  store ptr %28, ptr %6, align 8, !tbaa !5
  %29 = load ptr, ptr %6, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.cdc_splay_tree_node, ptr %29, i32 0, i32 1
  %31 = load ptr, ptr %30, align 8, !tbaa !15
  %32 = icmp ne ptr %31, null
  br i1 %32, label %33, label %38

33:                                               ; preds = %26
  %34 = load ptr, ptr %6, align 8, !tbaa !5
  %35 = getelementptr inbounds %struct.cdc_splay_tree_node, ptr %34, i32 0, i32 1
  %36 = load ptr, ptr %35, align 8, !tbaa !15
  %37 = getelementptr inbounds %struct.cdc_splay_tree_node, ptr %36, i32 0, i32 0
  store ptr null, ptr %37, align 8, !tbaa !17
  br label %38

38:                                               ; preds = %33, %26
  %39 = load ptr, ptr %6, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.cdc_splay_tree_node, ptr %39, i32 0, i32 2
  %41 = load ptr, ptr %40, align 8, !tbaa !18
  %42 = icmp ne ptr %41, null
  br i1 %42, label %43, label %48

43:                                               ; preds = %38
  %44 = load ptr, ptr %6, align 8, !tbaa !5
  %45 = getelementptr inbounds %struct.cdc_splay_tree_node, ptr %44, i32 0, i32 2
  %46 = load ptr, ptr %45, align 8, !tbaa !18
  %47 = getelementptr inbounds %struct.cdc_splay_tree_node, ptr %46, i32 0, i32 0
  store ptr null, ptr %47, align 8, !tbaa !17
  br label %48

48:                                               ; preds = %43, %38
  %49 = load ptr, ptr %6, align 8, !tbaa !5
  %50 = getelementptr inbounds %struct.cdc_splay_tree_node, ptr %49, i32 0, i32 1
  %51 = load ptr, ptr %50, align 8, !tbaa !15
  %52 = load ptr, ptr %6, align 8, !tbaa !5
  %53 = getelementptr inbounds %struct.cdc_splay_tree_node, ptr %52, i32 0, i32 2
  %54 = load ptr, ptr %53, align 8, !tbaa !18
  %55 = call ptr @merge(ptr noundef %51, ptr noundef %54)
  %56 = load ptr, ptr %4, align 8, !tbaa !5
  %57 = getelementptr inbounds %struct.cdc_splay_tree, ptr %56, i32 0, i32 0
  store ptr %55, ptr %57, align 8, !tbaa !9
  %58 = load ptr, ptr %4, align 8, !tbaa !5
  %59 = load ptr, ptr %6, align 8, !tbaa !5
  call void @free_node(ptr noundef %58, ptr noundef %59)
  %60 = load ptr, ptr %4, align 8, !tbaa !5
  %61 = getelementptr inbounds %struct.cdc_splay_tree, ptr %60, i32 0, i32 1
  %62 = load i64, ptr %61, align 8, !tbaa !19
  %63 = add i64 %62, -1
  store i64 %63, ptr %61, align 8, !tbaa !19
  store i64 1, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %64

64:                                               ; preds = %48, %25
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  %65 = load i64, ptr %3, align 8
  ret i64 %65
}

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

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

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

; Function Attrs: nounwind uwtable
declare hidden void @free_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_splay_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 = !{!16, !6, i64 8}
!16 = !{!"cdc_splay_tree_node", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32}
!17 = !{!16, !6, i64 0}
!18 = !{!16, !6, i64 16}
!19 = !{!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 [79 x i8], align 1
@__PRETTY_FUNCTION__.cdc_splay_tree_erase = external hidden unnamed_addr constant [52 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
define dso_local range(i64 0, 2) i64 @cdc_splay_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 472, ptr noundef nonnull @__PRETTY_FUNCTION__.cdc_splay_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)
  %.not20 = icmp eq ptr %10, null
  br i1 %.not20, label %25, label %11

11:                                               ; preds = %4
  %12 = tail call ptr @splay(ptr noundef nonnull %10)
  %13 = getelementptr inbounds i8, ptr %12, i64 8
  %14 = load ptr, ptr %13, align 8, !tbaa !14
  %.not21 = icmp eq ptr %14, null
  br i1 %.not21, label %16, label %15

15:                                               ; preds = %11
  store ptr null, ptr %14, align 8, !tbaa !16
  br label %16

16:                                               ; preds = %15, %11
  %17 = getelementptr inbounds i8, ptr %12, i64 16
  %18 = load ptr, ptr %17, align 8, !tbaa !17
  %.not22 = icmp eq ptr %18, null
  br i1 %.not22, label %20, label %19

19:                                               ; preds = %16
  store ptr null, ptr %18, align 8, !tbaa !16
  br label %20

20:                                               ; preds = %19, %16
  %21 = tail call ptr @merge(ptr noundef %14, ptr noundef %18)
  store ptr %21, ptr %0, align 8, !tbaa !5
  tail call void @free_node(ptr noundef nonnull %0, ptr noundef nonnull %12)
  %22 = getelementptr inbounds i8, ptr %0, i64 8
  %23 = load i64, ptr %22, align 8, !tbaa !18
  %24 = add i64 %23, -1
  store i64 %24, ptr %22, align 8, !tbaa !18
  br label %25

25:                                               ; preds = %4, %20
  %.0 = phi i64 [ 1, %20 ], [ 0, %4 ]
  ret i64 %.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
declare hidden ptr @splay(ptr noundef) local_unnamed_addr #1

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

; Function Attrs: nounwind uwtable
declare hidden void @free_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_splay_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 = !{!15, !7, i64 8}
!15 = !{!"cdc_splay_tree_node", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32}
!16 = !{!15, !7, i64 0}
!17 = !{!15, !7, i64 16}
!18 = !{!6, !10, i64 8}


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