; LLVM IR from KishanBGajera/2024-366-Days-Of-DSA :: Data Structures/Non-Linear/Tree/AVL Tree/C (main)

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

@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local void @printTree(ptr noundef %0, i32 noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = icmp ne ptr %6, null
  br i1 %7, label %8, label %34

8:                                                ; preds = %2
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.AVLNode, ptr %9, i32 0, i32 2
  %11 = load ptr, ptr %10, align 8, !tbaa !11
  %12 = load i32, ptr %4, align 4, !tbaa !9
  %13 = add nsw i32 %12, 1
  call void @printTree(ptr noundef %11, i32 noundef %13)
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  store i32 0, ptr %5, align 4, !tbaa !9
  br label %14

14:                                               ; preds = %21, %8
  %15 = load i32, ptr %5, align 4, !tbaa !9
  %16 = load i32, ptr %4, align 4, !tbaa !9
  %17 = icmp slt i32 %15, %16
  br i1 %17, label %19, label %18

18:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  br label %24

19:                                               ; preds = %14
  %20 = call i32 (ptr, ...) @printf(ptr noundef @.str)
  br label %21

21:                                               ; preds = %19
  %22 = load i32, ptr %5, align 4, !tbaa !9
  %23 = add nsw i32 %22, 1
  store i32 %23, ptr %5, align 4, !tbaa !9
  br label %14, !llvm.loop !13

24:                                               ; preds = %18
  %25 = load ptr, ptr %3, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.AVLNode, ptr %25, i32 0, i32 0
  %27 = load i32, ptr %26, align 8, !tbaa !15
  %28 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i32 noundef %27)
  %29 = load ptr, ptr %3, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.AVLNode, ptr %29, i32 0, i32 1
  %31 = load ptr, ptr %30, align 8, !tbaa !16
  %32 = load i32, ptr %4, align 4, !tbaa !9
  %33 = add nsw i32 %32, 1
  call void @printTree(ptr noundef %31, i32 noundef %33)
  br label %34

34:                                               ; preds = %24, %2
  ret void
}

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

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = !{!"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 = !{!"AVLNode", !10, i64 0, !6, i64 8, !6, i64 16, !10, i64 24}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = !{!12, !10, i64 0}
!16 = !{!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 [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: nofree nounwind uwtable
define dso_local void @printTree(ptr noundef readonly %0, i32 noundef %1) local_unnamed_addr #0 {
  %.not11 = icmp eq ptr %0, null
  br i1 %.not11, label %tailrecurse._crit_edge, label %.lr.ph15

.lr.ph15:                                         ; preds = %2, %tailrecurse
  %.tr913 = phi i32 [ %5, %tailrecurse ], [ %1, %2 ]
  %.tr12 = phi ptr [ %10, %tailrecurse ], [ %0, %2 ]
  %3 = getelementptr inbounds i8, ptr %.tr12, i64 16
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %5 = add nsw i32 %.tr913, 1
  tail call void @printTree(ptr noundef %4, i32 noundef %5)
  %6 = icmp sgt i32 %.tr913, 0
  br i1 %6, label %.lr.ph, label %tailrecurse

tailrecurse:                                      ; preds = %.lr.ph, %.lr.ph15
  %7 = load i32, ptr %.tr12, align 8, !tbaa !11
  %8 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i32 noundef %7)
  %9 = getelementptr inbounds i8, ptr %.tr12, i64 8
  %10 = load ptr, ptr %9, align 8, !tbaa !12
  %.not = icmp eq ptr %10, null
  br i1 %.not, label %tailrecurse._crit_edge, label %.lr.ph15

.lr.ph:                                           ; preds = %.lr.ph15, %.lr.ph
  %.010 = phi i32 [ %12, %.lr.ph ], [ 0, %.lr.ph15 ]
  %11 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str)
  %12 = add nuw nsw i32 %.010, 1
  %exitcond.not = icmp eq i32 %12, %.tr913
  br i1 %exitcond.not, label %tailrecurse, label %.lr.ph, !llvm.loop !13

tailrecurse._crit_edge:                           ; preds = %tailrecurse, %2
  ret void
}

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

attributes #0 = { nofree 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, !10, i64 16}
!6 = !{!"AVLNode", !7, i64 0, !10, i64 8, !10, i64 16, !7, i64 24}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !7, i64 0}
!12 = !{!6, !10, i64 8}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


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