; LLVM IR from vmartinv/eldiego :: estructuras/treap.ll (Z5eraseRP4nodei)

; 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.node = type { i32, i32, i32, ptr, ptr }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z4pushP4node(ptr noundef) #0

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z4pullP4node(ptr noundef) #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_Z5mergeP4nodeS0_(ptr noundef, ptr noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5eraseRP4nodei(ptr noundef nonnull align 8 dereferenceable(8) %0, i32 noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  %5 = load ptr, ptr %3, align 8, !tbaa !5
  %6 = load ptr, ptr %5, align 8, !tbaa !5
  %7 = icmp ne ptr %6, null
  br i1 %7, label %9, label %8

8:                                                ; preds = %2
  br label %54

9:                                                ; preds = %2
  %10 = load ptr, ptr %3, align 8, !tbaa !5
  %11 = load ptr, ptr %10, align 8, !tbaa !5
  call void @_Z4pushP4node(ptr noundef %11)
  %12 = load i32, ptr %4, align 4, !tbaa !9
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  %14 = load ptr, ptr %13, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.node, ptr %14, i32 0, i32 0
  %16 = load i32, ptr %15, align 8, !tbaa !11
  %17 = icmp eq i32 %12, %16
  br i1 %17, label %18, label %29

18:                                               ; preds = %9
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = load ptr, ptr %19, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.node, ptr %20, i32 0, i32 3
  %22 = load ptr, ptr %21, align 8, !tbaa !13
  %23 = load ptr, ptr %3, align 8, !tbaa !5
  %24 = load ptr, ptr %23, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.node, ptr %24, i32 0, i32 4
  %26 = load ptr, ptr %25, align 8, !tbaa !14
  %27 = call noundef ptr @_Z5mergeP4nodeS0_(ptr noundef %22, ptr noundef %26)
  %28 = load ptr, ptr %3, align 8, !tbaa !5
  store ptr %27, ptr %28, align 8, !tbaa !5
  br label %47

29:                                               ; preds = %9
  %30 = load i32, ptr %4, align 4, !tbaa !9
  %31 = load ptr, ptr %3, align 8, !tbaa !5
  %32 = load ptr, ptr %31, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.node, ptr %32, i32 0, i32 0
  %34 = load i32, ptr %33, align 8, !tbaa !11
  %35 = icmp slt i32 %30, %34
  br i1 %35, label %36, label %41

36:                                               ; preds = %29
  %37 = load ptr, ptr %3, align 8, !tbaa !5
  %38 = load ptr, ptr %37, align 8, !tbaa !5
  %39 = getelementptr inbounds %struct.node, ptr %38, i32 0, i32 3
  %40 = load i32, ptr %4, align 4, !tbaa !9
  call void @_Z5eraseRP4nodei(ptr noundef nonnull align 8 dereferenceable(8) %39, i32 noundef %40)
  br label %46

41:                                               ; preds = %29
  %42 = load ptr, ptr %3, align 8, !tbaa !5
  %43 = load ptr, ptr %42, align 8, !tbaa !5
  %44 = getelementptr inbounds %struct.node, ptr %43, i32 0, i32 4
  %45 = load i32, ptr %4, align 4, !tbaa !9
  call void @_Z5eraseRP4nodei(ptr noundef nonnull align 8 dereferenceable(8) %44, i32 noundef %45)
  br label %46

46:                                               ; preds = %41, %36
  br label %47

47:                                               ; preds = %46, %18
  %48 = load ptr, ptr %3, align 8, !tbaa !5
  %49 = load ptr, ptr %48, align 8, !tbaa !5
  %50 = icmp ne ptr %49, null
  br i1 %50, label %51, label %54

51:                                               ; preds = %47
  %52 = load ptr, ptr %3, align 8, !tbaa !5
  %53 = load ptr, ptr %52, align 8, !tbaa !5
  call void @_Z4pullP4node(ptr noundef %53)
  br label %54

54:                                               ; preds = %51, %47, %8
  ret void
}

attributes #0 = { mustprogress 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 = { mustprogress 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"_ZTS4node", !10, i64 0, !10, i64 4, !10, i64 8, !6, i64 16, !6, i64 24}
!13 = !{!12, !6, i64 16}
!14 = !{!12, !6, i64 24}


; 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: mustprogress nounwind uwtable
declare dso_local void @_Z4pushP4node(ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z4pullP4node(ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_Z5mergeP4nodeS0_(ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5eraseRP4nodei(ptr nocapture noundef nonnull align 8 dereferenceable(8) %0, i32 noundef %1) local_unnamed_addr #1 {
  %3 = load ptr, ptr %0, align 8, !tbaa !5
  %.not = icmp eq ptr %3, null
  br i1 %.not, label %19, label %4

4:                                                ; preds = %2
  tail call void @_Z4pushP4node(ptr noundef nonnull %3)
  %5 = load ptr, ptr %0, align 8, !tbaa !5
  %6 = load i32, ptr %5, align 8, !tbaa !9
  %7 = icmp eq i32 %6, %1
  br i1 %7, label %8, label %thread-pre-split

8:                                                ; preds = %4
  %9 = getelementptr inbounds i8, ptr %5, i64 16
  %10 = load ptr, ptr %9, align 8, !tbaa !12
  %11 = getelementptr inbounds i8, ptr %5, i64 24
  %12 = load ptr, ptr %11, align 8, !tbaa !13
  %13 = tail call noundef ptr @_Z5mergeP4nodeS0_(ptr noundef %10, ptr noundef %12)
  store ptr %13, ptr %0, align 8, !tbaa !5
  br label %16

thread-pre-split:                                 ; preds = %4
  %14 = icmp sgt i32 %6, %1
  %. = select i1 %14, i64 16, i64 24
  %15 = getelementptr inbounds i8, ptr %5, i64 %.
  tail call void @_Z5eraseRP4nodei(ptr noundef nonnull align 8 dereferenceable(8) %15, i32 noundef %1)
  %.pr = load ptr, ptr %0, align 8, !tbaa !5
  br label %16

16:                                               ; preds = %thread-pre-split, %8
  %17 = phi ptr [ %.pr, %thread-pre-split ], [ %13, %8 ]
  %.not17 = icmp eq ptr %17, null
  br i1 %.not17, label %19, label %18

18:                                               ; preds = %16
  tail call void @_Z4pullP4node(ptr noundef nonnull %17)
  br label %19

19:                                               ; preds = %2, %18, %16
  ret void
}

attributes #0 = { mustprogress 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 = { mustprogress 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"_ZTS4node", !11, i64 0, !11, i64 4, !11, i64 8, !6, i64 16, !6, i64 24}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, i64 16}
!13 = !{!10, !6, i64 24}


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