; LLVM IR from VAR-solutions/Algorithms :: Tree/Binary Search Tree/binary_tree_mirror.ll (Z6insertiP4node)

; 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 { i32, ptr, ptr }

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_Z6insertiP4node(i32 noundef %0, ptr noundef %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  %7 = load ptr, ptr %5, align 8, !tbaa !9
  %8 = icmp eq ptr %7, null
  br i1 %8, label %9, label %19

9:                                                ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %10 = call noalias ptr @malloc(i64 noundef 24) #4
  store ptr %10, ptr %6, align 8, !tbaa !9
  %11 = load i32, ptr %4, align 4, !tbaa !5
  %12 = load ptr, ptr %6, align 8, !tbaa !9
  %13 = getelementptr inbounds %struct.node, ptr %12, i32 0, i32 0
  store i32 %11, ptr %13, align 8, !tbaa !11
  %14 = load ptr, ptr %6, align 8, !tbaa !9
  %15 = getelementptr inbounds %struct.node, ptr %14, i32 0, i32 1
  store ptr null, ptr %15, align 8, !tbaa !13
  %16 = load ptr, ptr %6, align 8, !tbaa !9
  %17 = getelementptr inbounds %struct.node, ptr %16, i32 0, i32 2
  store ptr null, ptr %17, align 8, !tbaa !14
  %18 = load ptr, ptr %6, align 8, !tbaa !9
  store ptr %18, ptr %3, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %44

19:                                               ; preds = %2
  %20 = load i32, ptr %4, align 4, !tbaa !5
  %21 = load ptr, ptr %5, align 8, !tbaa !9
  %22 = getelementptr inbounds %struct.node, ptr %21, i32 0, i32 0
  %23 = load i32, ptr %22, align 8, !tbaa !11
  %24 = icmp sgt i32 %20, %23
  br i1 %24, label %25, label %33

25:                                               ; preds = %19
  %26 = load i32, ptr %4, align 4, !tbaa !5
  %27 = load ptr, ptr %5, align 8, !tbaa !9
  %28 = getelementptr inbounds %struct.node, ptr %27, i32 0, i32 2
  %29 = load ptr, ptr %28, align 8, !tbaa !14
  %30 = call noundef ptr @_Z6insertiP4node(i32 noundef %26, ptr noundef %29)
  %31 = load ptr, ptr %5, align 8, !tbaa !9
  %32 = getelementptr inbounds %struct.node, ptr %31, i32 0, i32 2
  store ptr %30, ptr %32, align 8, !tbaa !14
  br label %41

33:                                               ; preds = %19
  %34 = load i32, ptr %4, align 4, !tbaa !5
  %35 = load ptr, ptr %5, align 8, !tbaa !9
  %36 = getelementptr inbounds %struct.node, ptr %35, i32 0, i32 1
  %37 = load ptr, ptr %36, align 8, !tbaa !13
  %38 = call noundef ptr @_Z6insertiP4node(i32 noundef %34, ptr noundef %37)
  %39 = load ptr, ptr %5, align 8, !tbaa !9
  %40 = getelementptr inbounds %struct.node, ptr %39, i32 0, i32 1
  store ptr %38, ptr %40, align 8, !tbaa !13
  br label %41

41:                                               ; preds = %33, %25
  br label %42

42:                                               ; preds = %41
  %43 = load ptr, ptr %5, align 8, !tbaa !9
  store ptr %43, ptr %3, align 8
  br label %44

44:                                               ; preds = %42, %9
  %45 = load ptr, ptr %3, align 8
  ret ptr %45
}

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

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(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 = { nounwind 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 = { nounwind 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"_ZTS4node", !6, i64 0, !10, i64 8, !10, i64 16}
!13 = !{!12, !10, i64 8}
!14 = !{!12, !10, 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 nofree nounwind uwtable
define dso_local noundef ptr @_Z6insertiP4node(i32 noundef %0, ptr noundef %1) local_unnamed_addr #0 {
  %3 = icmp eq ptr %1, null
  br i1 %3, label %common.ret, label %6

common.ret:                                       ; preds = %2
  %4 = tail call noalias dereferenceable_or_null(24) ptr @malloc(i64 noundef 24) #3
  store i32 %0, ptr %4, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %4, i64 8
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %5, i8 0, i64 16, i1 false)
  br label %common.ret17

6:                                                ; preds = %2
  %7 = load i32, ptr %1, align 8, !tbaa !5
  %8 = icmp slt i32 %7, %0
  br i1 %8, label %9, label %13

common.ret17:                                     ; preds = %13, %9, %common.ret
  %common.ret17.op = phi ptr [ %4, %common.ret ], [ %1, %9 ], [ %1, %13 ]
  ret ptr %common.ret17.op

9:                                                ; preds = %6
  %10 = getelementptr inbounds i8, ptr %1, i64 16
  %11 = load ptr, ptr %10, align 8, !tbaa !11
  %12 = tail call noundef ptr @_Z6insertiP4node(i32 noundef %0, ptr noundef %11)
  store ptr %12, ptr %10, align 8, !tbaa !11
  br label %common.ret17

13:                                               ; preds = %6
  %14 = getelementptr inbounds i8, ptr %1, i64 8
  %15 = load ptr, ptr %14, align 8, !tbaa !12
  %16 = tail call noundef ptr @_Z6insertiP4node(i32 noundef %0, ptr noundef %15)
  store ptr %16, ptr %14, align 8, !tbaa !12
  br label %common.ret17
}

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(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 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 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = { nounwind 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 = !{!"_ZTS4node", !7, i64 0, !10, i64 8, !10, i64 16}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 16}
!12 = !{!6, !10, i64 8}


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