; LLVM IR from ADJA/algos :: DataStructures/CartesianTree.ll (Z5splitP4nodeiRS0_S1_)

; 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, ptr, ptr }

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5splitP4nodeiRS0_S1_(ptr noundef %0, i32 noundef %1, ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #0 {
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store ptr %2, ptr %7, align 8, !tbaa !5
  store ptr %3, ptr %8, align 8, !tbaa !5
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  %10 = icmp eq ptr %9, null
  br i1 %10, label %11, label %14

11:                                               ; preds = %4
  %12 = load ptr, ptr %8, align 8, !tbaa !5
  store ptr null, ptr %12, align 8, !tbaa !5
  %13 = load ptr, ptr %7, align 8, !tbaa !5
  store ptr null, ptr %13, align 8, !tbaa !5
  br label %41

14:                                               ; preds = %4
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.node, ptr %15, i32 0, i32 0
  %17 = load i32, ptr %16, align 8, !tbaa !11
  %18 = load i32, ptr %6, align 4, !tbaa !9
  %19 = icmp sgt i32 %17, %18
  br i1 %19, label %20, label %30

20:                                               ; preds = %14
  %21 = load ptr, ptr %5, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.node, ptr %21, i32 0, i32 2
  %23 = load ptr, ptr %22, align 8, !tbaa !13
  %24 = load i32, ptr %6, align 4, !tbaa !9
  %25 = load ptr, ptr %7, align 8, !tbaa !5
  %26 = load ptr, ptr %5, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.node, ptr %26, i32 0, i32 2
  call void @_Z5splitP4nodeiRS0_S1_(ptr noundef %23, i32 noundef %24, ptr noundef nonnull align 8 dereferenceable(8) %25, ptr noundef nonnull align 8 dereferenceable(8) %27)
  %28 = load ptr, ptr %5, align 8, !tbaa !5
  %29 = load ptr, ptr %8, align 8, !tbaa !5
  store ptr %28, ptr %29, align 8, !tbaa !5
  br label %40

30:                                               ; preds = %14
  %31 = load ptr, ptr %5, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.node, ptr %31, i32 0, i32 3
  %33 = load ptr, ptr %32, align 8, !tbaa !14
  %34 = load i32, ptr %6, align 4, !tbaa !9
  %35 = load ptr, ptr %5, align 8, !tbaa !5
  %36 = getelementptr inbounds %struct.node, ptr %35, i32 0, i32 3
  %37 = load ptr, ptr %8, align 8, !tbaa !5
  call void @_Z5splitP4nodeiRS0_S1_(ptr noundef %33, i32 noundef %34, ptr noundef nonnull align 8 dereferenceable(8) %36, ptr noundef nonnull align 8 dereferenceable(8) %37)
  %38 = load ptr, ptr %5, align 8, !tbaa !5
  %39 = load ptr, ptr %7, align 8, !tbaa !5
  store ptr %38, ptr %39, align 8, !tbaa !5
  br label %40

40:                                               ; preds = %30, %20
  br label %41

41:                                               ; preds = %40, %11
  ret void
}

attributes #0 = { 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, !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: mustprogress nofree nosync nounwind memory(readwrite, inaccessiblemem: none) uwtable
define dso_local void @_Z5splitP4nodeiRS0_S1_(ptr noundef %0, i32 noundef %1, ptr nocapture noundef nonnull writeonly align 8 dereferenceable(8) %2, ptr nocapture noundef nonnull writeonly align 8 dereferenceable(8) %3) local_unnamed_addr #0 {
  %5 = icmp eq ptr %0, null
  br i1 %5, label %common.ret, label %6

common.ret:                                       ; preds = %4
  store ptr null, ptr %3, align 8, !tbaa !5
  store ptr null, ptr %2, align 8, !tbaa !5
  br label %common.ret17

6:                                                ; preds = %4
  %7 = load i32, ptr %0, align 8, !tbaa !9
  %8 = icmp sgt i32 %7, %1
  br i1 %8, label %9, label %12

common.ret17:                                     ; preds = %12, %9, %common.ret
  ret void

9:                                                ; preds = %6
  %10 = getelementptr inbounds i8, ptr %0, i64 8
  %11 = load ptr, ptr %10, align 8, !tbaa !12
  tail call void @_Z5splitP4nodeiRS0_S1_(ptr noundef %11, i32 noundef %1, ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %10)
  store ptr %0, ptr %3, align 8, !tbaa !5
  br label %common.ret17

12:                                               ; preds = %6
  %13 = getelementptr inbounds i8, ptr %0, i64 16
  %14 = load ptr, ptr %13, align 8, !tbaa !13
  tail call void @_Z5splitP4nodeiRS0_S1_(ptr noundef %14, i32 noundef %1, ptr noundef nonnull align 8 dereferenceable(8) %13, ptr noundef nonnull align 8 dereferenceable(8) %3)
  store ptr %0, ptr %2, align 8, !tbaa !5
  br label %common.ret17
}

attributes #0 = { mustprogress nofree nosync nounwind memory(readwrite, inaccessiblemem: none) 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, !6, i64 8, !6, i64 16}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, i64 8}
!13 = !{!10, !6, i64 16}


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