; LLVM IR from chdb-io/chdb :: base/poco/Foundation/src (DigestEngine)

; 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"

%"class.__gnu_cxx::__normal_iterator" = type { ptr }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIhSaIhEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt6vectorIhSaIhEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPKhSt6vectorIhSaIhEEEEbRKNS_17__normal_iteratorIT_T0_EESB_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt6vectorIhSaIhEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKhSt6vectorIhSaIhEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef zeroext i1 @_ZN4Poco12DigestEngine18constantTimeEqualsERKSt6vectorIhSaIhEES5_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %1) #0 align 2 {
  %3 = alloca i1, align 1
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %8 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %9 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %10 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %11 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = call noundef i64 @_ZNKSt6vectorIhSaIhEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %12) #3
  %14 = load ptr, ptr %5, align 8, !tbaa !5
  %15 = call noundef i64 @_ZNKSt6vectorIhSaIhEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %14) #3
  %16 = icmp ne i64 %13, %15
  br i1 %16, label %17, label %18

17:                                               ; preds = %2
  store i1 false, ptr %3, align 1
  br label %47

18:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  store i32 0, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = call ptr @_ZNKSt6vectorIhSaIhEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %19) #3
  %21 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %7, i32 0, i32 0
  store ptr %20, ptr %21, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %22 = load ptr, ptr %5, align 8, !tbaa !5
  %23 = call ptr @_ZNKSt6vectorIhSaIhEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %22) #3
  %24 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %8, i32 0, i32 0
  store ptr %23, ptr %24, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %25 = load ptr, ptr %4, align 8, !tbaa !5
  %26 = call ptr @_ZNKSt6vectorIhSaIhEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %25) #3
  %27 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %9, i32 0, i32 0
  store ptr %26, ptr %27, align 8
  br label %28

28:                                               ; preds = %30, %18
  %29 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPKhSt6vectorIhSaIhEEEEbRKNS_17__normal_iteratorIT_T0_EESB_(ptr noundef nonnull align 8 dereferenceable(8) %7, ptr noundef nonnull align 8 dereferenceable(8) %9) #3
  br i1 %29, label %30, label %44

30:                                               ; preds = %28
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  %31 = call ptr @_ZN9__gnu_cxx17__normal_iteratorIPKhSt6vectorIhSaIhEEEppEi(ptr noundef nonnull align 8 dereferenceable(8) %7, i32 noundef 0) #3
  %32 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %10, i32 0, i32 0
  store ptr %31, ptr %32, align 8
  %33 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKhSt6vectorIhSaIhEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %10) #3
  %34 = load i8, ptr %33, align 1, !tbaa !11
  %35 = zext i8 %34 to i32
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #3
  %36 = call ptr @_ZN9__gnu_cxx17__normal_iteratorIPKhSt6vectorIhSaIhEEEppEi(ptr noundef nonnull align 8 dereferenceable(8) %8, i32 noundef 0) #3
  %37 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  store ptr %36, ptr %37, align 8
  %38 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKhSt6vectorIhSaIhEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %11) #3
  %39 = load i8, ptr %38, align 1, !tbaa !11
  %40 = zext i8 %39 to i32
  %41 = xor i32 %35, %40
  %42 = load i32, ptr %6, align 4, !tbaa !9
  %43 = or i32 %42, %41
  store i32 %43, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  br label %28, !llvm.loop !12

44:                                               ; preds = %28
  %45 = load i32, ptr %6, align 4, !tbaa !9
  %46 = icmp eq i32 %45, 0
  store i1 %46, ptr %3, align 1
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  br label %47

47:                                               ; preds = %44, %17
  %48 = load i1, ptr %3, align 1
  ret i1 %48
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZN9__gnu_cxx17__normal_iteratorIPKhSt6vectorIhSaIhEEEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #0 align 2

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { inlinehint 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 = !{!"int", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"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"

%"class.__gnu_cxx::__normal_iterator" = type { ptr }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIhSaIhEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt6vectorIhSaIhEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPKhSt6vectorIhSaIhEEEEbRKNS_17__normal_iteratorIT_T0_EESB_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt6vectorIhSaIhEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKhSt6vectorIhSaIhEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef zeroext i1 @_ZN4Poco12DigestEngine18constantTimeEqualsERKSt6vectorIhSaIhEES5_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %1) local_unnamed_addr #0 align 2 {
  %3 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %4 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %5 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %6 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %7 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %8 = tail call noundef i64 @_ZNKSt6vectorIhSaIhEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  %9 = tail call noundef i64 @_ZNKSt6vectorIhSaIhEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #3
  %.not = icmp eq i64 %8, %9
  br i1 %.not, label %10, label %26

10:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %11 = tail call ptr @_ZNKSt6vectorIhSaIhEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  store ptr %11, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %12 = tail call ptr @_ZNKSt6vectorIhSaIhEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #3
  store ptr %12, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #3
  %13 = tail call ptr @_ZNKSt6vectorIhSaIhEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  store ptr %13, ptr %5, align 8
  %14 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPKhSt6vectorIhSaIhEEEEbRKNS_17__normal_iteratorIT_T0_EESB_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %5) #3
  br i1 %14, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %10, %.lr.ph
  %.08 = phi i32 [ %23, %.lr.ph ], [ 0, %10 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #3
  %15 = call ptr @_ZN9__gnu_cxx17__normal_iteratorIPKhSt6vectorIhSaIhEEEppEi(ptr noundef nonnull align 8 dereferenceable(8) %3, i32 noundef 0) #3
  store ptr %15, ptr %6, align 8
  %16 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKhSt6vectorIhSaIhEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #3
  %17 = load i8, ptr %16, align 1, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #3
  %18 = call ptr @_ZN9__gnu_cxx17__normal_iteratorIPKhSt6vectorIhSaIhEEEppEi(ptr noundef nonnull align 8 dereferenceable(8) %4, i32 noundef 0) #3
  store ptr %18, ptr %7, align 8
  %19 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKhSt6vectorIhSaIhEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %7) #3
  %20 = load i8, ptr %19, align 1, !tbaa !5
  %21 = xor i8 %20, %17
  %22 = zext i8 %21 to i32
  %23 = or i32 %.08, %22
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #3
  %24 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPKhSt6vectorIhSaIhEEEEbRKNS_17__normal_iteratorIT_T0_EESB_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %5) #3
  br i1 %24, label %.lr.ph, label %._crit_edge.loopexit, !llvm.loop !8

._crit_edge.loopexit:                             ; preds = %.lr.ph
  %25 = icmp eq i32 %23, 0
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %10
  %.0.lcssa = phi i1 [ true, %10 ], [ %25, %._crit_edge.loopexit ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  br label %26

26:                                               ; preds = %2, %._crit_edge
  %.07 = phi i1 [ %.0.lcssa, %._crit_edge ], [ false, %2 ]
  ret i1 %.07
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZN9__gnu_cxx17__normal_iteratorIPKhSt6vectorIhSaIhEEEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #0 align 2

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { inlinehint 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}


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