; LLVM IR from sbu-fsl/kernel-ml :: src/decision-tree (decision_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.kml_dt_node = type { i32, i32, float, ptr, ptr }

@print_kml_decision_tree.level = external hidden global i32, align 4

; Function Attrs: nounwind uwtable
define dso_local void @print_kml_decision_tree(ptr noundef %0) #0 {
  %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 %19

6:                                                ; preds = %1
  %7 = load i32, ptr @print_kml_decision_tree.level, align 4, !tbaa !9
  %8 = add nsw i32 %7, 1
  store i32 %8, ptr @print_kml_decision_tree.level, align 4, !tbaa !9
  %9 = load ptr, ptr %2, align 8, !tbaa !5
  %10 = load i32, ptr @print_kml_decision_tree.level, align 4, !tbaa !9
  call void @pretty_print_dt_node(ptr noundef %9, i32 noundef %10)
  %11 = load ptr, ptr %2, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.kml_dt_node, ptr %11, i32 0, i32 3
  %13 = load ptr, ptr %12, align 8, !tbaa !11
  call void @print_kml_decision_tree(ptr noundef %13)
  %14 = load ptr, ptr %2, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.kml_dt_node, ptr %14, i32 0, i32 4
  %16 = load ptr, ptr %15, align 8, !tbaa !14
  call void @print_kml_decision_tree(ptr noundef %16)
  %17 = load i32, ptr @print_kml_decision_tree.level, align 4, !tbaa !9
  %18 = add nsw i32 %17, -1
  store i32 %18, ptr @print_kml_decision_tree.level, align 4, !tbaa !9
  br label %19

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

; Function Attrs: nounwind uwtable
declare hidden void @pretty_print_dt_node(ptr noundef, i32 noundef) #0

attributes #0 = { 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" }

!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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !6, i64 16}
!12 = !{!"kml_dt_node", !10, i64 0, !10, i64 4, !13, i64 8, !6, i64 16, !6, i64 24}
!13 = !{!"float", !7, i64 0}
!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"

@print_kml_decision_tree.level = external hidden local_unnamed_addr global i32, align 4

; Function Attrs: nounwind uwtable
define dso_local void @print_kml_decision_tree(ptr noundef %0) local_unnamed_addr #0 {
  %2 = icmp eq ptr %0, null
  br i1 %2, label %common.ret4, label %3

common.ret4:                                      ; preds = %1, %3
  ret void

3:                                                ; preds = %1
  %4 = load i32, ptr @print_kml_decision_tree.level, align 4, !tbaa !5
  %5 = add nsw i32 %4, 1
  store i32 %5, ptr @print_kml_decision_tree.level, align 4, !tbaa !5
  tail call void @pretty_print_dt_node(ptr noundef nonnull %0, i32 noundef %5)
  %6 = getelementptr inbounds i8, ptr %0, i64 16
  %7 = load ptr, ptr %6, align 8, !tbaa !9
  tail call void @print_kml_decision_tree(ptr noundef %7)
  %8 = getelementptr inbounds i8, ptr %0, i64 24
  %9 = load ptr, ptr %8, align 8, !tbaa !13
  tail call void @print_kml_decision_tree(ptr noundef %9)
  %10 = load i32, ptr @print_kml_decision_tree.level, align 4, !tbaa !5
  %11 = add nsw i32 %10, -1
  store i32 %11, ptr @print_kml_decision_tree.level, align 4, !tbaa !5
  br label %common.ret4
}

; Function Attrs: nounwind uwtable
declare hidden void @pretty_print_dt_node(ptr noundef, i32 noundef) local_unnamed_addr #0

attributes #0 = { 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" }

!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/C++ TBAA"}
!9 = !{!10, !12, i64 16}
!10 = !{!"kml_dt_node", !6, i64 0, !6, i64 4, !11, i64 8, !12, i64 16, !12, i64 24}
!11 = !{!"float", !7, i64 0}
!12 = !{!"any pointer", !7, i64 0}
!13 = !{!10, !12, i64 24}


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