; LLVM IR from ahampriyanshu/algo-ds-101 :: Data-Structures/Tree/Binary-Tree/BTree.ll (Z7newNodev)

; 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.BTreeNode = type { ptr, ptr, i8, i32 }

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_Z7newNodev() #0 {
  %1 = alloca ptr, align 8
  %2 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %1) #3
  %3 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 24) #4
  store ptr %3, ptr %1, align 8, !tbaa !5
  %4 = call noalias noundef nonnull ptr @_Znam(i64 noundef 20) #4
  %5 = load ptr, ptr %1, align 8, !tbaa !5
  %6 = getelementptr inbounds %struct.BTreeNode, ptr %5, i32 0, i32 0
  store ptr %4, ptr %6, align 8, !tbaa !9
  %7 = call noalias noundef nonnull ptr @_Znam(i64 noundef 48) #4
  %8 = load ptr, ptr %1, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.BTreeNode, ptr %8, i32 0, i32 1
  store ptr %7, ptr %9, align 8, !tbaa !13
  %10 = load ptr, ptr %1, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.BTreeNode, ptr %10, i32 0, i32 2
  store i8 1, ptr %11, align 8, !tbaa !14
  %12 = load ptr, ptr %1, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.BTreeNode, ptr %12, i32 0, i32 3
  store i32 0, ptr %13, align 4, !tbaa !15
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #3
  store i32 0, ptr %2, align 4, !tbaa !16
  br label %14

14:                                               ; preds = %25, %0
  %15 = load i32, ptr %2, align 4, !tbaa !16
  %16 = icmp slt i32 %15, 6
  br i1 %16, label %18, label %17

17:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #3
  br label %28

18:                                               ; preds = %14
  %19 = load ptr, ptr %1, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.BTreeNode, ptr %19, i32 0, i32 1
  %21 = load ptr, ptr %20, align 8, !tbaa !13
  %22 = load i32, ptr %2, align 4, !tbaa !16
  %23 = sext i32 %22 to i64
  %24 = getelementptr inbounds ptr, ptr %21, i64 %23
  store ptr null, ptr %24, align 8, !tbaa !5
  br label %25

25:                                               ; preds = %18
  %26 = load i32, ptr %2, align 4, !tbaa !16
  %27 = add nsw i32 %26, 1
  store i32 %27, ptr %2, align 4, !tbaa !16
  br label %14, !llvm.loop !17

28:                                               ; preds = %17
  %29 = load ptr, ptr %1, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #3
  ret ptr %29
}

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

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #2

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 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 = { 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 = { 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 #3 = { nounwind }
attributes #4 = { 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, !6, i64 0}
!10 = !{!"_ZTS9BTreeNode", !6, i64 0, !6, i64 8, !11, i64 16, !12, i64 20}
!11 = !{!"bool", !7, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!10, !6, i64 8}
!14 = !{!10, !11, i64 16}
!15 = !{!10, !12, i64 20}
!16 = !{!12, !12, i64 0}
!17 = distinct !{!17, !18}
!18 = !{!"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"

; Function Attrs: mustprogress uwtable
define dso_local noalias noundef nonnull ptr @_Z7newNodev() local_unnamed_addr #0 {
  %1 = tail call noalias noundef nonnull dereferenceable(24) ptr @_Znwm(i64 noundef 24) #3
  %2 = tail call noalias noundef nonnull dereferenceable(20) ptr @_Znam(i64 noundef 20) #3
  store ptr %2, ptr %1, align 8, !tbaa !5
  %3 = tail call noalias noundef nonnull dereferenceable(48) ptr @_Znam(i64 noundef 48) #3
  %4 = getelementptr inbounds i8, ptr %1, i64 8
  store ptr %3, ptr %4, align 8, !tbaa !12
  %5 = getelementptr inbounds i8, ptr %1, i64 16
  store i8 1, ptr %5, align 8, !tbaa !13
  %6 = getelementptr inbounds i8, ptr %1, i64 20
  store i32 0, ptr %6, align 4, !tbaa !14
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(48) %3, i8 0, i64 48, i1 false), !tbaa !15
  ret ptr %1
}

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

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(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 = !{!"_ZTS9BTreeNode", !7, i64 0, !7, i64 8, !10, i64 16, !11, i64 20}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"bool", !8, i64 0}
!11 = !{!"int", !8, i64 0}
!12 = !{!6, !7, i64 8}
!13 = !{!6, !10, i64 16}
!14 = !{!6, !11, i64 20}
!15 = !{!7, !7, i64 0}


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