; LLVM IR from sbu-fsl/kernel-ml :: examples (decision_tree_example)

; 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 = type { ptr }

@.str = external hidden unnamed_addr constant [64 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [80 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [20 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #3
  store i32 0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  store i32 0, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  store ptr null, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %8 = call ptr @allocate_matrix(i32 noundef 422, i32 noundef 5, i32 noundef 1)
  store ptr %8, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %9 = call ptr @kml_file_open(ptr noundef @.str, ptr noundef @.str.1, i32 noundef 0)
  store ptr %9, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %10 = call ptr @build_decision_tree_model_from_file(ptr noundef @.str.2)
  store ptr %10, ptr %7, align 8, !tbaa !9
  %11 = load ptr, ptr %7, align 8, !tbaa !9
  %12 = getelementptr inbounds %struct.kml_dt, ptr %11, i32 0, i32 0
  %13 = load ptr, ptr %12, align 8, !tbaa !11
  call void @print_kml_decision_tree(ptr noundef %13)
  %14 = load ptr, ptr %6, align 8, !tbaa !9
  %15 = load ptr, ptr %5, align 8, !tbaa !9
  call void @load_matrix_from_file(ptr noundef %14, ptr noundef %15)
  br label %16

16:                                               ; preds = %29, %0
  %17 = load i32, ptr %2, align 4, !tbaa !5
  %18 = icmp slt i32 %17, 422
  br i1 %18, label %19, label %32

19:                                               ; preds = %16
  %20 = load ptr, ptr %5, align 8, !tbaa !9
  %21 = load i32, ptr %2, align 4, !tbaa !5
  %22 = call ptr @get_row(ptr noundef %20, i32 noundef %21)
  store ptr %22, ptr %4, align 8, !tbaa !9
  %23 = load ptr, ptr %7, align 8, !tbaa !9
  %24 = load ptr, ptr %4, align 8, !tbaa !9
  %25 = call i32 @predict_decision_tree(ptr noundef %23, ptr noundef %24)
  store i32 %25, ptr %3, align 4, !tbaa !5
  %26 = load i32, ptr %3, align 4, !tbaa !5
  %27 = call i32 (ptr, ...) @printf(ptr noundef @.str.3, i32 noundef %26)
  %28 = load ptr, ptr %4, align 8, !tbaa !9
  call void @free_matrix(ptr noundef %28)
  br label %29

29:                                               ; preds = %19
  %30 = load i32, ptr %2, align 4, !tbaa !5
  %31 = add nsw i32 %30, 1
  store i32 %31, ptr %2, align 4, !tbaa !5
  br label %16, !llvm.loop !13

32:                                               ; preds = %16
  %33 = load ptr, ptr %5, align 8, !tbaa !9
  call void @free_matrix(ptr noundef %33)
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #3
  %34 = load i32, ptr %1, align 4
  ret i32 %34
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

declare ptr @allocate_matrix(i32 noundef, i32 noundef, i32 noundef) #2

declare ptr @kml_file_open(ptr noundef, ptr noundef, i32 noundef) #2

declare ptr @build_decision_tree_model_from_file(ptr noundef) #2

declare void @print_kml_decision_tree(ptr noundef) #2

declare void @load_matrix_from_file(ptr noundef, ptr noundef) #2

declare ptr @get_row(ptr noundef, i32 noundef) #2

declare i32 @predict_decision_tree(ptr noundef, ptr noundef) #2

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

declare void @free_matrix(ptr noundef) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
attributes #3 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"kml_dt", !10, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


; 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 [64 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [80 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [20 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = tail call ptr @allocate_matrix(i32 noundef 422, i32 noundef 5, i32 noundef 1) #3
  %2 = tail call ptr @kml_file_open(ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 0) #3
  %3 = tail call ptr @build_decision_tree_model_from_file(ptr noundef nonnull @.str.2) #3
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  tail call void @print_kml_decision_tree(ptr noundef %4) #3
  tail call void @load_matrix_from_file(ptr noundef %2, ptr noundef %1) #3
  br label %5

5:                                                ; preds = %0, %5
  %.012 = phi i32 [ 0, %0 ], [ %9, %5 ]
  %6 = tail call ptr @get_row(ptr noundef %1, i32 noundef %.012) #3
  %7 = tail call i32 @predict_decision_tree(ptr noundef nonnull %3, ptr noundef %6) #3
  %8 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3, i32 noundef %7)
  tail call void @free_matrix(ptr noundef %6) #3
  %9 = add nuw nsw i32 %.012, 1
  %exitcond.not = icmp eq i32 %9, 422
  br i1 %exitcond.not, label %10, label %5, !llvm.loop !10

10:                                               ; preds = %5
  tail call void @free_matrix(ptr noundef %1) #3
  ret i32 0
}

declare ptr @allocate_matrix(i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #1

declare ptr @kml_file_open(ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #1

declare ptr @build_decision_tree_model_from_file(ptr noundef) local_unnamed_addr #1

declare void @print_kml_decision_tree(ptr noundef) local_unnamed_addr #1

declare void @load_matrix_from_file(ptr noundef, ptr noundef) local_unnamed_addr #1

declare ptr @get_row(ptr noundef, i32 noundef) local_unnamed_addr #1

declare i32 @predict_decision_tree(ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

declare void @free_matrix(ptr noundef) local_unnamed_addr #1

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" }
attributes #1 = { "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 = { 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" }
attributes #3 = { 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 = !{!"kml_dt", !7, i64 0}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}


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