; LLVM IR from HarshCasper/NeoAlgo :: C-Plus-Plus/ds/BinaryTree_PreorderTraversal.ll (ZN10binaryTree9insertKeyEi)

; 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"

%class.binaryTree = type { ptr }
%struct.node = type { i32, ptr, ptr }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN10binaryTree9insertKeyEi(ptr noundef nonnull align 8 dereferenceable(8) %0, i32 noundef %1) #0 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  %5 = load ptr, ptr %3, align 8
  %6 = getelementptr inbounds %class.binaryTree, ptr %5, i32 0, i32 0
  %7 = load ptr, ptr %6, align 8, !tbaa !11
  %8 = icmp ne ptr %7, null
  br i1 %8, label %9, label %13

9:                                                ; preds = %2
  %10 = load i32, ptr %4, align 4, !tbaa !9
  %11 = getelementptr inbounds %class.binaryTree, ptr %5, i32 0, i32 0
  %12 = load ptr, ptr %11, align 8, !tbaa !11
  call void @_ZN10binaryTree9insertKeyEiP4node(ptr noundef nonnull align 8 dereferenceable(8) %5, i32 noundef %10, ptr noundef %12)
  br label %26

13:                                               ; preds = %2
  %14 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 24) #2
  %15 = getelementptr inbounds %class.binaryTree, ptr %5, i32 0, i32 0
  store ptr %14, ptr %15, align 8, !tbaa !11
  %16 = load i32, ptr %4, align 4, !tbaa !9
  %17 = getelementptr inbounds %class.binaryTree, ptr %5, i32 0, i32 0
  %18 = load ptr, ptr %17, align 8, !tbaa !11
  %19 = getelementptr inbounds %struct.node, ptr %18, i32 0, i32 0
  store i32 %16, ptr %19, align 8, !tbaa !13
  %20 = getelementptr inbounds %class.binaryTree, ptr %5, i32 0, i32 0
  %21 = load ptr, ptr %20, align 8, !tbaa !11
  %22 = getelementptr inbounds %struct.node, ptr %21, i32 0, i32 1
  store ptr null, ptr %22, align 8, !tbaa !15
  %23 = getelementptr inbounds %class.binaryTree, ptr %5, i32 0, i32 0
  %24 = load ptr, ptr %23, align 8, !tbaa !11
  %25 = getelementptr inbounds %struct.node, ptr %24, i32 0, i32 2
  store ptr null, ptr %25, align 8, !tbaa !16
  br label %26

26:                                               ; preds = %13, %9
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN10binaryTree9insertKeyEiP4node(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef, ptr noundef) #0 align 2

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #1

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" }
attributes #1 = { nobuiltin allocsize(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 = { builtin allocsize(0) }

!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 = !{!"_ZTS10binaryTree", !6, i64 0}
!13 = !{!14, !10, i64 0}
!14 = !{!"_ZTS4node", !10, i64 0, !6, i64 8, !6, i64 16}
!15 = !{!14, !6, i64 8}
!16 = !{!14, !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 uwtable
define dso_local void @_ZN10binaryTree9insertKeyEi(ptr noundef nonnull align 8 dereferenceable(8) %0, i32 noundef %1) local_unnamed_addr #0 align 2 {
  %3 = load ptr, ptr %0, align 8, !tbaa !5
  %.not = icmp eq ptr %3, null
  br i1 %.not, label %5, label %4

4:                                                ; preds = %2
  tail call void @_ZN10binaryTree9insertKeyEiP4node(ptr noundef nonnull align 8 dereferenceable(8) %0, i32 noundef %1, ptr noundef nonnull %3)
  br label %8

5:                                                ; preds = %2
  %6 = tail call noalias noundef nonnull dereferenceable(24) ptr @_Znwm(i64 noundef 24) #3
  store ptr %6, ptr %0, align 8, !tbaa !5
  store i32 %1, ptr %6, align 8, !tbaa !10
  %7 = getelementptr inbounds i8, ptr %6, i64 8
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %7, i8 0, i64 16, i1 false)
  br label %8

8:                                                ; preds = %5, %4
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN10binaryTree9insertKeyEiP4node(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef, ptr noundef) local_unnamed_addr #0 align 2

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) local_unnamed_addr #1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

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" }
attributes #1 = { nobuiltin allocsize(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 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { builtin allocsize(0) }

!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 = !{!"_ZTS10binaryTree", !7, i64 0}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!11, !12, i64 0}
!11 = !{!"_ZTS4node", !12, i64 0, !7, i64 8, !7, i64 16}
!12 = !{!"int", !8, i64 0}


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