; LLVM IR from Dev-XYS/Algorithms :: K-Dimensional-Tree.ll (Z3dfsP4node)

; 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 { ptr, ptr, %struct.point, [2 x i32], [2 x i32] }
%struct.point = type { [2 x i32] }

@.str = external hidden unnamed_addr constant [16 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZN5pointixEi(ptr noundef nonnull align 4 dereferenceable(8), i32 noundef) #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z3dfsP4node(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = icmp eq ptr %3, null
  br i1 %4, label %5, label %6

5:                                                ; preds = %1
  br label %22

6:                                                ; preds = %1
  %7 = load ptr, ptr %2, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.node, ptr %7, i32 0, i32 2
  %9 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZN5pointixEi(ptr noundef nonnull align 4 dereferenceable(8) %8, i32 noundef 0)
  %10 = load i32, ptr %9, align 4, !tbaa !9
  %11 = load ptr, ptr %2, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.node, ptr %11, i32 0, i32 2
  %13 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZN5pointixEi(ptr noundef nonnull align 4 dereferenceable(8) %12, i32 noundef 1)
  %14 = load i32, ptr %13, align 4, !tbaa !9
  %15 = call i32 (ptr, ...) @printf(ptr noundef @.str, i32 noundef %10, i32 noundef %14)
  %16 = load ptr, ptr %2, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.node, ptr %16, i32 0, i32 0
  %18 = load ptr, ptr %17, align 8, !tbaa !11
  call void @_Z3dfsP4node(ptr noundef %18)
  %19 = load ptr, ptr %2, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.node, ptr %19, i32 0, i32 1
  %21 = load ptr, ptr %20, align 8, !tbaa !14
  call void @_Z3dfsP4node(ptr noundef %21)
  br label %22

22:                                               ; preds = %6, %5
  ret void
}

declare i32 @printf(ptr noundef, ...) #2

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" }
attributes #2 = { "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, !6, i64 0}
!12 = !{!"_ZTS4node", !6, i64 0, !6, i64 8, !13, i64 16, !7, i64 24, !7, i64 32}
!13 = !{!"_ZTS5point", !7, i64 0}
!14 = !{!12, !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"

@.str = external hidden unnamed_addr constant [16 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZN5pointixEi(ptr noundef nonnull align 4 dereferenceable(8), i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z3dfsP4node(ptr noundef %0) local_unnamed_addr #0 {
  %2 = icmp eq ptr %0, null
  br i1 %2, label %tailrecurse._crit_edge, label %tailrecurse

tailrecurse:                                      ; preds = %1, %tailrecurse
  %.tr5 = phi ptr [ %11, %tailrecurse ], [ %0, %1 ]
  %3 = getelementptr inbounds i8, ptr %.tr5, i64 16
  %4 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZN5pointixEi(ptr noundef nonnull align 4 dereferenceable(8) %3, i32 noundef 0)
  %5 = load i32, ptr %4, align 4, !tbaa !5
  %6 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZN5pointixEi(ptr noundef nonnull align 4 dereferenceable(8) %3, i32 noundef 1)
  %7 = load i32, ptr %6, align 4, !tbaa !5
  %8 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef %5, i32 noundef %7)
  %9 = load ptr, ptr %.tr5, align 8, !tbaa !9
  tail call void @_Z3dfsP4node(ptr noundef %9)
  %10 = getelementptr inbounds i8, ptr %.tr5, i64 8
  %11 = load ptr, ptr %10, align 8, !tbaa !13
  %12 = icmp eq ptr %11, null
  br i1 %12, label %tailrecurse._crit_edge, label %tailrecurse

tailrecurse._crit_edge:                           ; preds = %tailrecurse, %1
  ret void
}

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

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 = { nofree 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" }

!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 = !{!"int", !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 8, !12, i64 16, !7, i64 24, !7, i64 32}
!11 = !{!"any pointer", !7, i64 0}
!12 = !{!"_ZTS5point", !7, i64 0}
!13 = !{!10, !11, i64 8}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass