; LLVM IR from chachaxw/data-structure-and-algorithm :: leetcode/binary_search_tree (search_range_in_BST)

; 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 }

; Function Attrs: mustprogress uwtable
define dso_local void @_Z12inorder_defsRSt6vectorIiSaIiEEP8TreeNodeii(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef %1, i32 noundef %2, i32 noundef %3) #0 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i32 %2, ptr %7, align 4, !tbaa !9
  store i32 %3, ptr %8, align 4, !tbaa !9
  %9 = load ptr, ptr %6, align 8, !tbaa !5
  %10 = icmp eq ptr %9, null
  br i1 %10, label %11, label %12

11:                                               ; preds = %4
  br label %41

12:                                               ; preds = %4
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = load ptr, ptr %6, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.TreeNode, ptr %14, i32 0, i32 1
  %16 = load ptr, ptr %15, align 8, !tbaa !11
  %17 = load i32, ptr %7, align 4, !tbaa !9
  %18 = load i32, ptr %8, align 4, !tbaa !9
  call void @_Z12inorder_defsRSt6vectorIiSaIiEEP8TreeNodeii(ptr noundef nonnull align 8 dereferenceable(24) %13, ptr noundef %16, i32 noundef %17, i32 noundef %18)
  %19 = load ptr, ptr %6, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.TreeNode, ptr %19, i32 0, i32 0
  %21 = load i32, ptr %20, align 8, !tbaa !13
  %22 = load i32, ptr %7, align 4, !tbaa !9
  %23 = icmp sge i32 %21, %22
  br i1 %23, label %24, label %34

24:                                               ; preds = %12
  %25 = load ptr, ptr %6, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.TreeNode, ptr %25, i32 0, i32 0
  %27 = load i32, ptr %26, align 8, !tbaa !13
  %28 = load i32, ptr %8, align 4, !tbaa !9
  %29 = icmp sle i32 %27, %28
  br i1 %29, label %30, label %34

30:                                               ; preds = %24
  %31 = load ptr, ptr %5, align 8, !tbaa !5
  %32 = load ptr, ptr %6, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.TreeNode, ptr %32, i32 0, i32 0
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %31, ptr noundef nonnull align 4 dereferenceable(4) %33)
  br label %34

34:                                               ; preds = %30, %24, %12
  %35 = load ptr, ptr %5, align 8, !tbaa !5
  %36 = load ptr, ptr %6, align 8, !tbaa !5
  %37 = getelementptr inbounds %struct.TreeNode, ptr %36, i32 0, i32 1
  %38 = load ptr, ptr %37, align 8, !tbaa !11
  %39 = load i32, ptr %7, align 4, !tbaa !9
  %40 = load i32, ptr %8, align 4, !tbaa !9
  call void @_Z12inorder_defsRSt6vectorIiSaIiEEP8TreeNodeii(ptr noundef nonnull align 8 dereferenceable(24) %35, ptr noundef %38, i32 noundef %39, i32 noundef %40)
  br label %41

41:                                               ; preds = %34, %11
  ret void
}

; 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

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, !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 8}
!12 = !{!"_ZTS8TreeNode", !10, i64 0, !6, i64 8, !6, i64 16}
!13 = !{!12, !10, i64 0}


; 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 @_Z12inorder_defsRSt6vectorIiSaIiEEP8TreeNodeii(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef %1, i32 noundef %2, i32 noundef %3) local_unnamed_addr #0 {
  %5 = icmp eq ptr %1, null
  br i1 %5, label %tailrecurse._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %4, %tailrecurse
  %.tr1619 = phi ptr [ %10, %tailrecurse ], [ %1, %4 ]
  %6 = getelementptr inbounds i8, ptr %.tr1619, i64 8
  %7 = load ptr, ptr %6, align 8, !tbaa !5
  tail call void @_Z12inorder_defsRSt6vectorIiSaIiEEP8TreeNodeii(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef %7, i32 noundef %2, i32 noundef %3)
  %8 = load i32, ptr %.tr1619, align 8, !tbaa !11
  %.not = icmp slt i32 %8, %2
  %.not15 = icmp sgt i32 %8, %3
  %or.cond = or i1 %.not, %.not15
  br i1 %or.cond, label %tailrecurse, label %9

9:                                                ; preds = %.lr.ph
  tail call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 4 dereferenceable(4) %.tr1619)
  br label %tailrecurse

tailrecurse:                                      ; preds = %9, %.lr.ph
  %10 = load ptr, ptr %6, align 8, !tbaa !5
  %11 = icmp eq ptr %10, null
  br i1 %11, label %tailrecurse._crit_edge, label %.lr.ph

tailrecurse._crit_edge:                           ; preds = %tailrecurse, %4
  ret void
}

; 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 8}
!6 = !{!"_ZTS8TreeNode", !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, !7, i64 0}


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