; LLVM IR from ImChong/Practice_LeetCode_C :: F01_Common_Functions/src (common_binary_tree)

; 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.TreeLkListQueue = type { ptr, i32 }
%struct.TreeLkListNode = type { ptr, ptr }
%struct.TreeNode = type { i32, ptr, ptr }

@.str.3 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [31 x i8], align 1

; 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

declare i32 @printf(ptr noundef, ...) #1

; Function Attrs: nounwind uwtable
define dso_local void @BTree_ListQueuePrint(ptr noundef %0) #2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load ptr, ptr %2, align 8, !tbaa !5
  %5 = getelementptr inbounds %struct.TreeLkListQueue, ptr %4, i32 0, i32 1
  %6 = load i32, ptr %5, align 8, !tbaa !9
  %7 = call i32 (ptr, ...) @printf(ptr noundef @.str.6, i32 noundef %6)
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %8 = load ptr, ptr %2, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.TreeLkListQueue, ptr %8, i32 0, i32 0
  %10 = load ptr, ptr %9, align 8, !tbaa !12
  store ptr %10, ptr %3, align 8, !tbaa !5
  br label %11

11:                                               ; preds = %27, %1
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  %13 = icmp ne ptr %12, null
  br i1 %13, label %14, label %31

14:                                               ; preds = %11
  %15 = load ptr, ptr %3, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.TreeLkListNode, ptr %15, i32 0, i32 0
  %17 = load ptr, ptr %16, align 8, !tbaa !13
  %18 = getelementptr inbounds %struct.TreeNode, ptr %17, i32 0, i32 0
  %19 = load i32, ptr %18, align 8, !tbaa !15
  %20 = call i32 (ptr, ...) @printf(ptr noundef @.str.3, i32 noundef %19)
  %21 = load ptr, ptr %3, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.TreeLkListNode, ptr %21, i32 0, i32 1
  %23 = load ptr, ptr %22, align 8, !tbaa !17
  %24 = icmp ne ptr %23, null
  br i1 %24, label %25, label %27

25:                                               ; preds = %14
  %26 = call i32 (ptr, ...) @printf(ptr noundef @.str.4)
  br label %27

27:                                               ; preds = %25, %14
  %28 = load ptr, ptr %3, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.TreeLkListNode, ptr %28, i32 0, i32 1
  %30 = load ptr, ptr %29, align 8, !tbaa !17
  store ptr %30, ptr %3, align 8, !tbaa !5
  br label %11, !llvm.loop !18

31:                                               ; preds = %11
  %32 = call i32 (ptr, ...) @printf(ptr noundef @.str.5)
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 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 #3 = { 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, !11, i64 8}
!10 = !{!"", !6, i64 0, !11, i64 8}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, i64 0}
!13 = !{!14, !6, i64 0}
!14 = !{!"TreeLkListNode", !6, i64 0, !6, i64 8}
!15 = !{!16, !11, i64 0}
!16 = !{!"TreeNode", !11, i64 0, !6, i64 8, !6, i64 16}
!17 = !{!14, !6, i64 8}
!18 = distinct !{!18, !19}
!19 = !{!"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"

@.str.3 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [31 x i8], align 1

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #0

; Function Attrs: nofree nounwind uwtable
define dso_local void @BTree_ListQueuePrint(ptr nocapture noundef readonly %0) local_unnamed_addr #1 {
  %2 = getelementptr inbounds i8, ptr %0, i64 8
  %3 = load i32, ptr %2, align 8, !tbaa !5
  %4 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.6, i32 noundef %3)
  %.07 = load ptr, ptr %0, align 8, !tbaa !11
  %.not8 = icmp eq ptr %.07, null
  br i1 %.not8, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1, %10
  %.09 = phi ptr [ %.0.pre, %10 ], [ %.07, %1 ]
  %5 = load ptr, ptr %.09, align 8, !tbaa !12
  %6 = load i32, ptr %5, align 8, !tbaa !14
  %7 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3, i32 noundef %6)
  %8 = getelementptr inbounds i8, ptr %.09, i64 8
  %9 = load ptr, ptr %8, align 8, !tbaa !11
  %.not6 = icmp eq ptr %9, null
  br i1 %.not6, label %._crit_edge, label %10

10:                                               ; preds = %.lr.ph
  %11 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.4)
  %.0.pre = load ptr, ptr %8, align 8, !tbaa !11
  %.not = icmp eq ptr %.0.pre, null
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !16

._crit_edge:                                      ; preds = %.lr.ph, %10, %1
  %12 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.5)
  ret void
}

attributes #0 = { nofree nounwind "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 = { 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" }

!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 = !{!"", !7, i64 0, !10, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!7, !7, i64 0}
!12 = !{!13, !7, i64 0}
!13 = !{!"TreeLkListNode", !7, i64 0, !7, i64 8}
!14 = !{!15, !10, i64 0}
!15 = !{!"TreeNode", !10, i64 0, !7, i64 8, !7, i64 16}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}


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