; LLVM IR from Leet-Us-Code/DSA-A-Z-Practice :: Sid's Levels/Level - 1/BinaryTree/NodeToRoot.ll (Z10NodeToRootP4NodeiRSt6vectorIiSaIiEE)

; 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.Node = type <{ ptr, ptr, i32, [4 x i8] }>

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z10NodeToRootP4NodeiRSt6vectorIiSaIiEE(ptr noundef %0, i32 noundef %1, ptr noundef nonnull align 8 dereferenceable(24) %2) #0 {
  %4 = alloca i1, align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca i8, align 1
  %9 = alloca i32, align 4
  %10 = alloca i8, align 1
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store ptr %2, ptr %7, align 8, !tbaa !5
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = icmp eq ptr %11, null
  br i1 %12, label %13, label %14

13:                                               ; preds = %3
  store i1 false, ptr %4, align 1
  br label %55

14:                                               ; preds = %3
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.Node, ptr %15, i32 0, i32 2
  %17 = load i32, ptr %16, align 8, !tbaa !11
  %18 = load i32, ptr %6, align 4, !tbaa !9
  %19 = icmp eq i32 %17, %18
  br i1 %19, label %20, label %24

20:                                               ; preds = %14
  %21 = load ptr, ptr %7, align 8, !tbaa !5
  %22 = load ptr, ptr %5, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.Node, ptr %22, i32 0, i32 2
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %21, ptr noundef nonnull align 4 dereferenceable(4) %23)
  store i1 true, ptr %4, align 1
  br label %55

24:                                               ; preds = %14
  call void @llvm.lifetime.start.p0(i64 1, ptr %8) #2
  %25 = load ptr, ptr %5, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.Node, ptr %25, i32 0, i32 0
  %27 = load ptr, ptr %26, align 8, !tbaa !13
  %28 = load i32, ptr %6, align 4, !tbaa !9
  %29 = load ptr, ptr %7, align 8, !tbaa !5
  %30 = call noundef zeroext i1 @_Z10NodeToRootP4NodeiRSt6vectorIiSaIiEE(ptr noundef %27, i32 noundef %28, ptr noundef nonnull align 8 dereferenceable(24) %29)
  %31 = zext i1 %30 to i8
  store i8 %31, ptr %8, align 1, !tbaa !14
  %32 = load i8, ptr %8, align 1, !tbaa !14, !range !16, !noundef !17
  %33 = trunc i8 %32 to i1
  br i1 %33, label %34, label %38

34:                                               ; preds = %24
  %35 = load ptr, ptr %7, align 8, !tbaa !5
  %36 = load ptr, ptr %5, align 8, !tbaa !5
  %37 = getelementptr inbounds %struct.Node, ptr %36, i32 0, i32 2
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %35, ptr noundef nonnull align 4 dereferenceable(4) %37)
  store i1 true, ptr %4, align 1
  store i32 1, ptr %9, align 4
  br label %54

38:                                               ; preds = %24
  call void @llvm.lifetime.start.p0(i64 1, ptr %10) #2
  %39 = load ptr, ptr %5, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.Node, ptr %39, i32 0, i32 1
  %41 = load ptr, ptr %40, align 8, !tbaa !18
  %42 = load i32, ptr %6, align 4, !tbaa !9
  %43 = load ptr, ptr %7, align 8, !tbaa !5
  %44 = call noundef zeroext i1 @_Z10NodeToRootP4NodeiRSt6vectorIiSaIiEE(ptr noundef %41, i32 noundef %42, ptr noundef nonnull align 8 dereferenceable(24) %43)
  %45 = zext i1 %44 to i8
  store i8 %45, ptr %10, align 1, !tbaa !14
  %46 = load i8, ptr %10, align 1, !tbaa !14, !range !16, !noundef !17
  %47 = trunc i8 %46 to i1
  br i1 %47, label %48, label %52

48:                                               ; preds = %38
  %49 = load ptr, ptr %7, align 8, !tbaa !5
  %50 = load ptr, ptr %5, align 8, !tbaa !5
  %51 = getelementptr inbounds %struct.Node, ptr %50, i32 0, i32 2
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %49, ptr noundef nonnull align 4 dereferenceable(4) %51)
  store i1 true, ptr %4, align 1
  store i32 1, ptr %9, align 4
  br label %53

52:                                               ; preds = %38
  store i1 false, ptr %4, align 1
  store i32 1, ptr %9, align 4
  br label %53

53:                                               ; preds = %52, %48
  call void @llvm.lifetime.end.p0(i64 1, ptr %10) #2
  br label %54

54:                                               ; preds = %53, %34
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #2
  br label %55

55:                                               ; preds = %54, %20, %13
  %56 = load i1, ptr %4, align 1
  ret i1 %56
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

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

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 16}
!12 = !{!"_ZTS4Node", !6, i64 0, !6, i64 8, !10, i64 16}
!13 = !{!12, !6, i64 0}
!14 = !{!15, !15, i64 0}
!15 = !{!"bool", !7, i64 0}
!16 = !{i8 0, i8 2}
!17 = !{}
!18 = !{!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"

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z10NodeToRootP4NodeiRSt6vectorIiSaIiEE(ptr noundef %0, i32 noundef %1, ptr noundef nonnull align 8 dereferenceable(24) %2) local_unnamed_addr #0 {
  %4 = icmp eq ptr %0, null
  br i1 %4, label %16, label %5

5:                                                ; preds = %3
  %6 = getelementptr inbounds i8, ptr %0, i64 16
  %7 = load i32, ptr %6, align 8, !tbaa !5
  %8 = icmp eq i32 %7, %1
  br i1 %8, label %.sink.split, label %9

9:                                                ; preds = %5
  %10 = load ptr, ptr %0, align 8, !tbaa !11
  %11 = tail call noundef zeroext i1 @_Z10NodeToRootP4NodeiRSt6vectorIiSaIiEE(ptr noundef %10, i32 noundef %1, ptr noundef nonnull align 8 dereferenceable(24) %2)
  br i1 %11, label %.sink.split, label %12

12:                                               ; preds = %9
  %13 = getelementptr inbounds i8, ptr %0, i64 8
  %14 = load ptr, ptr %13, align 8, !tbaa !12
  %15 = tail call noundef zeroext i1 @_Z10NodeToRootP4NodeiRSt6vectorIiSaIiEE(ptr noundef %14, i32 noundef %1, ptr noundef nonnull align 8 dereferenceable(24) %2)
  br i1 %15, label %.sink.split, label %16

.sink.split:                                      ; preds = %12, %9, %5
  tail call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %2, ptr noundef nonnull align 4 dereferenceable(4) %6)
  br label %16

16:                                               ; preds = %.sink.split, %12, %3
  %.2 = phi i1 [ false, %3 ], [ false, %12 ], [ true, %.sink.split ]
  ret i1 %.2
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 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" }

!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 = !{!"_ZTS4Node", !7, i64 0, !7, i64 8, !10, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !7, i64 0}
!12 = !{!6, !7, i64 8}


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