; LLVM IR from vczh/herodb :: Kernel/Source (Vlpp)

; 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"

; 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

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZN2vl7parsing15ParsingTreeNode11FindSubNodeERKNS0_16ParsingTextRangeE(ptr noundef nonnull align 8 dereferenceable(128), ptr noundef nonnull align 8 dereferenceable(56)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZN2vl7parsing15ParsingTreeNode15FindDeepestNodeERKNS0_16ParsingTextRangeE(ptr noundef nonnull align 8 dereferenceable(128) %0, ptr noundef nonnull align 8 dereferenceable(56) %1) #1 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %7 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #2
  store ptr null, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  store ptr %7, ptr %6, align 8, !tbaa !5
  br label %8

8:                                                ; preds = %13, %2
  %9 = load ptr, ptr %6, align 8, !tbaa !5
  store ptr %9, ptr %5, align 8, !tbaa !5
  %10 = load ptr, ptr %6, align 8, !tbaa !5
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = call noundef ptr @_ZN2vl7parsing15ParsingTreeNode11FindSubNodeERKNS0_16ParsingTextRangeE(ptr noundef nonnull align 8 dereferenceable(128) %10, ptr noundef nonnull align 8 dereferenceable(56) %11)
  store ptr %12, ptr %6, align 8, !tbaa !5
  br label %13

13:                                               ; preds = %8
  %14 = load ptr, ptr %5, align 8, !tbaa !5
  %15 = load ptr, ptr %6, align 8, !tbaa !5
  %16 = icmp ne ptr %14, %15
  br i1 %16, label %8, label %17, !llvm.loop !9

17:                                               ; preds = %13
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  ret ptr %18
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = distinct !{!9, !10}
!10 = !{!"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
declare dso_local noundef ptr @_ZN2vl7parsing15ParsingTreeNode11FindSubNodeERKNS0_16ParsingTextRangeE(ptr noundef nonnull align 8 dereferenceable(128), ptr noundef nonnull align 8 dereferenceable(56)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZN2vl7parsing15ParsingTreeNode15FindDeepestNodeERKNS0_16ParsingTextRangeE(ptr noundef nonnull align 8 dereferenceable(128) %0, ptr noundef nonnull align 8 dereferenceable(56) %1) local_unnamed_addr #0 align 2 {
  br label %3

3:                                                ; preds = %3, %2
  %.0 = phi ptr [ %0, %2 ], [ %4, %3 ]
  %4 = tail call noundef ptr @_ZN2vl7parsing15ParsingTreeNode11FindSubNodeERKNS0_16ParsingTextRangeE(ptr noundef nonnull align 8 dereferenceable(128) %.0, ptr noundef nonnull align 8 dereferenceable(56) %1)
  %.not = icmp eq ptr %.0, %4
  br i1 %.not, label %5, label %3, !llvm.loop !5

5:                                                ; preds = %3
  ret ptr %.0
}

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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass