; LLVM IR from DionysiosB/CodeForces :: 1200-1299/1269B-ModuloEquality.ll (Z5checkSt6vectorIxSaIxEERKS1_RKxS5_)

; 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 uwtable
define dso_local noundef zeroext i1 @_Z5checkSt6vectorIxSaIxEERKS1_RKxS5_(ptr noundef %0, ptr noundef nonnull align 8 dereferenceable(24) %1, ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #0 {
  %5 = alloca i1, align 1
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca i64, align 8
  %11 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %12 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %13 = alloca i64, align 8
  %14 = alloca i32, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store ptr %2, ptr %8, align 8, !tbaa !5
  store ptr %3, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #4
  store i64 0, ptr %10, align 8, !tbaa !9
  br label %15

15:                                               ; preds = %33, %4
  %16 = load i64, ptr %10, align 8, !tbaa !9
  %17 = call noundef i64 @_ZNKSt6vectorIxSaIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #4
  %18 = icmp ult i64 %16, %17
  br i1 %18, label %20, label %19

19:                                               ; preds = %15
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  br label %36

20:                                               ; preds = %15
  %21 = load ptr, ptr %8, align 8, !tbaa !5
  %22 = load i64, ptr %21, align 8, !tbaa !9
  %23 = load i64, ptr %10, align 8, !tbaa !9
  %24 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %23) #4
  %25 = load i64, ptr %24, align 8, !tbaa !9
  %26 = add nsw i64 %25, %22
  store i64 %26, ptr %24, align 8, !tbaa !9
  %27 = load ptr, ptr %9, align 8, !tbaa !5
  %28 = load i64, ptr %27, align 8, !tbaa !9
  %29 = load i64, ptr %10, align 8, !tbaa !9
  %30 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %29) #4
  %31 = load i64, ptr %30, align 8, !tbaa !9
  %32 = srem i64 %31, %28
  store i64 %32, ptr %30, align 8, !tbaa !9
  br label %33

33:                                               ; preds = %20
  %34 = load i64, ptr %10, align 8, !tbaa !9
  %35 = add nsw i64 %34, 1
  store i64 %35, ptr %10, align 8, !tbaa !9
  br label %15, !llvm.loop !11

36:                                               ; preds = %19
  %37 = call ptr @_ZNSt6vectorIxSaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #4
  %38 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  store ptr %37, ptr %38, align 8
  %39 = call ptr @_ZNSt6vectorIxSaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #4
  %40 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %12, i32 0, i32 0
  store ptr %39, ptr %40, align 8
  %41 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  %42 = load ptr, ptr %41, align 8
  %43 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %12, i32 0, i32 0
  %44 = load ptr, ptr %43, align 8
  call void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPxSt6vectorIxSaIxEEEEEvT_S7_(ptr %42, ptr %44)
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #4
  store i64 0, ptr %13, align 8, !tbaa !9
  br label %45

45:                                               ; preds = %61, %36
  %46 = load i64, ptr %13, align 8, !tbaa !9
  %47 = call noundef i64 @_ZNKSt6vectorIxSaIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #4
  %48 = icmp ult i64 %46, %47
  br i1 %48, label %50, label %49

49:                                               ; preds = %45
  store i32 5, ptr %14, align 4
  br label %64

50:                                               ; preds = %45
  %51 = load i64, ptr %13, align 8, !tbaa !9
  %52 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %51) #4
  %53 = load i64, ptr %52, align 8, !tbaa !9
  %54 = load ptr, ptr %7, align 8, !tbaa !5
  %55 = load i64, ptr %13, align 8, !tbaa !9
  %56 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %54, i64 noundef %55) #4
  %57 = load i64, ptr %56, align 8, !tbaa !9
  %58 = icmp ne i64 %53, %57
  br i1 %58, label %59, label %60

59:                                               ; preds = %50
  store i1 false, ptr %5, align 1
  store i32 1, ptr %14, align 4
  br label %64

60:                                               ; preds = %50
  br label %61

61:                                               ; preds = %60
  %62 = load i64, ptr %13, align 8, !tbaa !9
  %63 = add nsw i64 %62, 1
  store i64 %63, ptr %13, align 8, !tbaa !9
  br label %45, !llvm.loop !13

64:                                               ; preds = %59, %49
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #4
  %65 = load i32, ptr %14, align 4
  switch i32 %65, label %69 [
    i32 5, label %66
    i32 1, label %67
  ]

66:                                               ; preds = %64
  store i1 true, ptr %5, align 1
  br label %67

67:                                               ; preds = %66, %64
  %68 = load i1, ptr %5, align 1
  ret i1 %68

69:                                               ; preds = %64
  unreachable
}

; 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 noundef i64 @_ZNKSt6vectorIxSaIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 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: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPxSt6vectorIxSaIxEEEEEvT_S7_(ptr, ptr) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIxSaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIxSaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 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" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { inlinehint 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 #4 = { 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 long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


; 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 noundef zeroext i1 @_Z5checkSt6vectorIxSaIxEERKS1_RKxS5_(ptr noundef nonnull %0, ptr noundef nonnull align 8 dereferenceable(24) %1, ptr nocapture noundef nonnull readonly align 8 dereferenceable(8) %2, ptr nocapture noundef nonnull readonly align 8 dereferenceable(8) %3) local_unnamed_addr #0 {
  %5 = tail call noundef i64 @_ZNKSt6vectorIxSaIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  %.not23 = icmp eq i64 %5, 0
  br i1 %.not23, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %4
  %6 = tail call ptr @_ZNSt6vectorIxSaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  %7 = tail call ptr @_ZNSt6vectorIxSaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  tail call void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPxSt6vectorIxSaIxEEEEEvT_S7_(ptr %6, ptr %7)
  %8 = tail call noundef i64 @_ZNKSt6vectorIxSaIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  %9 = icmp eq i64 %8, 0
  br i1 %9, label %._crit_edge20, label %.lr.ph19

.lr.ph:                                           ; preds = %4, %.lr.ph
  %.01516 = phi i64 [ %18, %.lr.ph ], [ 0, %4 ]
  %10 = load i64, ptr %2, align 8, !tbaa !5
  %11 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %.01516) #3
  %12 = load i64, ptr %11, align 8, !tbaa !5
  %13 = add nsw i64 %12, %10
  store i64 %13, ptr %11, align 8, !tbaa !5
  %14 = load i64, ptr %3, align 8, !tbaa !5
  %15 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %.01516) #3
  %16 = load i64, ptr %15, align 8, !tbaa !5
  %17 = srem i64 %16, %14
  store i64 %17, ptr %15, align 8, !tbaa !5
  %18 = add nuw nsw i64 %.01516, 1
  %19 = tail call noundef i64 @_ZNKSt6vectorIxSaIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  %20 = icmp ult i64 %18, %19
  br i1 %20, label %.lr.ph, label %._crit_edge, !llvm.loop !9

21:                                               ; preds = %.lr.ph19
  %22 = add nuw nsw i64 %.01317, 1
  %23 = tail call noundef i64 @_ZNKSt6vectorIxSaIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  %.not24 = icmp ult i64 %22, %23
  br i1 %.not24, label %.lr.ph19, label %._crit_edge20, !llvm.loop !11

.lr.ph19:                                         ; preds = %._crit_edge, %21
  %.01317 = phi i64 [ %22, %21 ], [ 0, %._crit_edge ]
  %24 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %.01317) #3
  %25 = load i64, ptr %24, align 8, !tbaa !5
  %26 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %.01317) #3
  %27 = load i64, ptr %26, align 8, !tbaa !5
  %.not = icmp eq i64 %25, %27
  br i1 %.not, label %21, label %._crit_edge20

._crit_edge20:                                    ; preds = %21, %.lr.ph19, %._crit_edge
  %.lcssa = phi i1 [ true, %._crit_edge ], [ %.not, %.lr.ph19 ], [ %.not, %21 ]
  ret i1 %.lcssa
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIxSaIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPxSt6vectorIxSaIxEEEEEvT_S7_(ptr, ptr) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIxSaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIxSaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #1 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" }
attributes #1 = { 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 #2 = { inlinehint 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 #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 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


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