; 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
define dso_local void @_ZN2vl7parsing9analyzing22RemoveStableLookAheadsERNS_11collections4ListINS_3PtrINS0_7tabling12ParsingTable13LookAheadInfoEEEPS7_EERKSA_(ptr noundef nonnull align 8 dereferenceable(33) %0, ptr noundef nonnull align 8 dereferenceable(33) %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i64, 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
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = call noundef i64 @_ZNK2vl11collections9ArrayBaseINS_3PtrINS_7parsing7tabling12ParsingTable13LookAheadInfoEEEE5CountEv(ptr noundef nonnull align 8 dereferenceable(24) %7)
  %9 = sub nsw i64 %8, 1
  store i64 %9, ptr %5, align 8, !tbaa !9
  br label %10

10:                                               ; preds = %26, %2
  %11 = load i64, ptr %5, align 8, !tbaa !9
  %12 = icmp sge i64 %11, 0
  br i1 %12, label %14, label %13

13:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  br label %29

14:                                               ; preds = %10
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %16 = load ptr, ptr %3, align 8, !tbaa !5
  %17 = load i64, ptr %5, align 8, !tbaa !9
  %18 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZN2vl11collections4ListINS_3PtrINS_7parsing7tabling12ParsingTable13LookAheadInfoEEEPS6_EixEl(ptr noundef nonnull align 8 dereferenceable(33) %16, i64 noundef %17)
  %19 = call noundef ptr @_ZNK2vl3PtrINS_7parsing7tabling12ParsingTable13LookAheadInfoEE3ObjEv(ptr noundef nonnull align 8 dereferenceable(32) %18)
  store ptr %19, ptr %6, align 8, !tbaa !5
  %20 = call noundef zeroext i1 @_ZNK2vl11collections4ListINS_3PtrINS_7parsing7tabling12ParsingTable13LookAheadInfoEEEPS6_E8ContainsERKS8_(ptr noundef nonnull align 8 dereferenceable(33) %15, ptr noundef nonnull align 8 dereferenceable(8) %6)
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br i1 %20, label %21, label %25

21:                                               ; preds = %14
  %22 = load ptr, ptr %3, align 8, !tbaa !5
  %23 = load i64, ptr %5, align 8, !tbaa !9
  %24 = call noundef zeroext i1 @_ZN2vl11collections8ListBaseINS_3PtrINS_7parsing7tabling12ParsingTable13LookAheadInfoEEEPS6_E8RemoveAtEl(ptr noundef nonnull align 8 dereferenceable(33) %22, i64 noundef %23)
  br label %25

25:                                               ; preds = %21, %14
  br label %26

26:                                               ; preds = %25
  %27 = load i64, ptr %5, align 8, !tbaa !9
  %28 = add nsw i64 %27, -1
  store i64 %28, ptr %5, align 8, !tbaa !9
  br label %10, !llvm.loop !11

29:                                               ; preds = %13
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNK2vl11collections9ArrayBaseINS_3PtrINS_7parsing7tabling12ParsingTable13LookAheadInfoEEEE5CountEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZNK2vl11collections4ListINS_3PtrINS_7parsing7tabling12ParsingTable13LookAheadInfoEEEPS6_E8ContainsERKS8_(ptr noundef nonnull align 8 dereferenceable(33), ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZN2vl11collections4ListINS_3PtrINS_7parsing7tabling12ParsingTable13LookAheadInfoEEEPS6_EixEl(ptr noundef nonnull align 8 dereferenceable(33), i64 noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK2vl3PtrINS_7parsing7tabling12ParsingTable13LookAheadInfoEE3ObjEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZN2vl11collections8ListBaseINS_3PtrINS_7parsing7tabling12ParsingTable13LookAheadInfoEEEPS6_E8RemoveAtEl(ptr noundef nonnull align 8 dereferenceable(33), i64 noundef) #1 align 2

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 = { mustprogress 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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN2vl7parsing9analyzing22RemoveStableLookAheadsERNS_11collections4ListINS_3PtrINS0_7tabling12ParsingTable13LookAheadInfoEEEPS7_EERKSA_(ptr noundef nonnull align 8 dereferenceable(33) %0, ptr noundef nonnull align 8 dereferenceable(33) %1) local_unnamed_addr #1 {
  %3 = alloca ptr, align 8
  %4 = tail call noundef i64 @_ZNK2vl11collections9ArrayBaseINS_3PtrINS_7parsing7tabling12ParsingTable13LookAheadInfoEEEE5CountEv(ptr noundef nonnull align 8 dereferenceable(24) %0)
  %5 = icmp sgt i64 %4, 0
  br i1 %5, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %11, %2
  ret void

.lr.ph:                                           ; preds = %2, %11
  %.08.in = phi i64 [ %.08, %11 ], [ %4, %2 ]
  %.08 = add nsw i64 %.08.in, -1
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %6 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZN2vl11collections4ListINS_3PtrINS_7parsing7tabling12ParsingTable13LookAheadInfoEEEPS6_EixEl(ptr noundef nonnull align 8 dereferenceable(33) %0, i64 noundef %.08)
  %7 = call noundef ptr @_ZNK2vl3PtrINS_7parsing7tabling12ParsingTable13LookAheadInfoEE3ObjEv(ptr noundef nonnull align 8 dereferenceable(32) %6)
  store ptr %7, ptr %3, align 8, !tbaa !5
  %8 = call noundef zeroext i1 @_ZNK2vl11collections4ListINS_3PtrINS_7parsing7tabling12ParsingTable13LookAheadInfoEEEPS6_E8ContainsERKS8_(ptr noundef nonnull align 8 dereferenceable(33) %1, ptr noundef nonnull align 8 dereferenceable(8) %3)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  br i1 %8, label %9, label %11

9:                                                ; preds = %.lr.ph
  %10 = call noundef zeroext i1 @_ZN2vl11collections8ListBaseINS_3PtrINS_7parsing7tabling12ParsingTable13LookAheadInfoEEEPS6_E8RemoveAtEl(ptr noundef nonnull align 8 dereferenceable(33) %0, i64 noundef %.08)
  br label %11

11:                                               ; preds = %.lr.ph, %9
  %12 = icmp ugt i64 %.08.in, 1
  br i1 %12, label %.lr.ph, label %._crit_edge, !llvm.loop !9
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNK2vl11collections9ArrayBaseINS_3PtrINS_7parsing7tabling12ParsingTable13LookAheadInfoEEEE5CountEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZNK2vl11collections4ListINS_3PtrINS_7parsing7tabling12ParsingTable13LookAheadInfoEEEPS6_E8ContainsERKS8_(ptr noundef nonnull align 8 dereferenceable(33), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZN2vl11collections4ListINS_3PtrINS_7parsing7tabling12ParsingTable13LookAheadInfoEEEPS6_EixEl(ptr noundef nonnull align 8 dereferenceable(33), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK2vl3PtrINS_7parsing7tabling12ParsingTable13LookAheadInfoEE3ObjEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZN2vl11collections8ListBaseINS_3PtrINS_7parsing7tabling12ParsingTable13LookAheadInfoEEEPS6_E8RemoveAtEl(ptr noundef nonnull align 8 dereferenceable(33), i64 noundef) local_unnamed_addr #1 align 2

attributes #0 = { mustprogress 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 = { mustprogress 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++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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