; LLVM IR from xuxping/codelife :: algorthms/tests (test_BinarySeachTree)

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

; 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 ptr @getNodeByVal(ptr noundef %0, i32 noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %8, ptr %6, align 8, !tbaa !5
  %9 = load ptr, ptr %6, align 8, !tbaa !5
  %10 = icmp ne ptr %9, null
  br i1 %10, label %11, label %40

11:                                               ; preds = %2
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.TreeNode, ptr %12, i32 0, i32 0
  %14 = load i32, ptr %13, align 8, !tbaa !11
  %15 = load i32, ptr %5, align 4, !tbaa !9
  %16 = icmp eq i32 %14, %15
  br i1 %16, label %17, label %19

17:                                               ; preds = %11
  %18 = load ptr, ptr %6, align 8, !tbaa !5
  store ptr %18, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %42

19:                                               ; preds = %11
  %20 = load ptr, ptr %6, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.TreeNode, ptr %20, i32 0, i32 2
  %22 = load ptr, ptr %21, align 8, !tbaa !13
  %23 = load i32, ptr %5, align 4, !tbaa !9
  %24 = call ptr @getNodeByVal(ptr noundef %22, i32 noundef %23)
  store ptr %24, ptr %6, align 8, !tbaa !5
  %25 = load ptr, ptr %6, align 8, !tbaa !5
  %26 = icmp eq ptr %25, null
  br i1 %26, label %33, label %27

27:                                               ; preds = %19
  %28 = load ptr, ptr %6, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.TreeNode, ptr %28, i32 0, i32 0
  %30 = load i32, ptr %29, align 8, !tbaa !11
  %31 = load i32, ptr %5, align 4, !tbaa !9
  %32 = icmp ne i32 %30, %31
  br i1 %32, label %33, label %39

33:                                               ; preds = %27, %19
  %34 = load ptr, ptr %4, align 8, !tbaa !5
  %35 = getelementptr inbounds %struct.TreeNode, ptr %34, i32 0, i32 3
  %36 = load ptr, ptr %35, align 8, !tbaa !14
  %37 = load i32, ptr %5, align 4, !tbaa !9
  %38 = call ptr @getNodeByVal(ptr noundef %36, i32 noundef %37)
  store ptr %38, ptr %6, align 8, !tbaa !5
  br label %39

39:                                               ; preds = %33, %27
  br label %40

40:                                               ; preds = %39, %2
  %41 = load ptr, ptr %6, align 8, !tbaa !5
  store ptr %41, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %42

42:                                               ; preds = %40, %17
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  %43 = load ptr, ptr %3, align 8
  ret ptr %43
}

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 = { 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, !10, i64 0}
!12 = !{!"TreeNode", !10, i64 0, !6, i64 8, !6, i64 16, !6, i64 24}
!13 = !{!12, !6, i64 16}
!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"

; Function Attrs: nofree nosync nounwind memory(read, inaccessiblemem: none) uwtable
define dso_local ptr @getNodeByVal(ptr noundef readonly %0, i32 noundef %1) local_unnamed_addr #0 {
  %.not19 = icmp eq ptr %0, null
  br i1 %.not19, label %tailrecurse._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2, %tailrecurse
  %.tr20 = phi ptr [ %13, %tailrecurse ], [ %0, %2 ]
  %3 = load i32, ptr %.tr20, align 8, !tbaa !5
  %4 = icmp eq i32 %3, %1
  br i1 %4, label %tailrecurse._crit_edge, label %5

5:                                                ; preds = %.lr.ph
  %6 = getelementptr inbounds i8, ptr %.tr20, i64 16
  %7 = load ptr, ptr %6, align 8, !tbaa !11
  %8 = tail call ptr @getNodeByVal(ptr noundef %7, i32 noundef %1)
  %9 = icmp eq ptr %8, null
  br i1 %9, label %tailrecurse, label %10

10:                                               ; preds = %5
  %11 = load i32, ptr %8, align 8, !tbaa !5
  %.not17 = icmp eq i32 %11, %1
  br i1 %.not17, label %tailrecurse._crit_edge, label %tailrecurse

tailrecurse:                                      ; preds = %10, %5
  %12 = getelementptr inbounds i8, ptr %.tr20, i64 24
  %13 = load ptr, ptr %12, align 8, !tbaa !12
  %.not = icmp eq ptr %13, null
  br i1 %.not, label %tailrecurse._crit_edge, label %.lr.ph

tailrecurse._crit_edge:                           ; preds = %.lr.ph, %10, %tailrecurse, %2
  %.013 = phi ptr [ null, %2 ], [ null, %tailrecurse ], [ %8, %10 ], [ %.tr20, %.lr.ph ]
  ret ptr %.013
}

attributes #0 = { nofree nosync nounwind memory(read, inaccessiblemem: none) 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, !7, i64 0}
!6 = !{!"TreeNode", !7, i64 0, !10, i64 8, !10, i64 16, !10, 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, !10, i64 16}
!12 = !{!6, !10, i64 24}


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