; LLVM IR from AdarshGaur/Competitive-Programming :: Codeforces/Educational Codeforces Round 139 (Rated for Div. 2)/D.ll (Z5sievev)

; 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.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@primeFact = external dso_local global %"class.std::vector", align 8

; 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 @_Z5sievev() #1 {
  %1 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %2 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @primeFact) #3
  %7 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %1, i32 0, i32 0
  store ptr %6, ptr %7, align 8
  %8 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @primeFact) #3
  %9 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %2, i32 0, i32 0
  store ptr %8, ptr %9, align 8
  %10 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %1, i32 0, i32 0
  %11 = load ptr, ptr %10, align 8
  %12 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %2, i32 0, i32 0
  %13 = load ptr, ptr %12, align 8
  call void @_ZSt4iotaIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiEvT_S7_T0_(ptr %11, ptr %13, i32 noundef 0)
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  store i32 2, ptr %3, align 4, !tbaa !5
  br label %14

14:                                               ; preds = %54, %0
  %15 = load i32, ptr %3, align 4, !tbaa !5
  %16 = load i32, ptr %3, align 4, !tbaa !5
  %17 = mul nsw i32 %15, %16
  %18 = icmp sle i32 %17, 10000007
  br i1 %18, label %20, label %19

19:                                               ; preds = %14
  store i32 2, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  br label %57

20:                                               ; preds = %14
  %21 = load i32, ptr %3, align 4, !tbaa !5
  %22 = sext i32 %21 to i64
  %23 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @primeFact, i64 noundef %22) #3
  %24 = load i32, ptr %23, align 4, !tbaa !5
  %25 = load i32, ptr %3, align 4, !tbaa !5
  %26 = icmp eq i32 %24, %25
  br i1 %26, label %27, label %53

27:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  %28 = load i32, ptr %3, align 4, !tbaa !5
  %29 = load i32, ptr %3, align 4, !tbaa !5
  %30 = mul nsw i32 %28, %29
  store i32 %30, ptr %5, align 4, !tbaa !5
  br label %31

31:                                               ; preds = %48, %27
  %32 = load i32, ptr %5, align 4, !tbaa !5
  %33 = icmp sle i32 %32, 10000007
  br i1 %33, label %35, label %34

34:                                               ; preds = %31
  store i32 5, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  br label %52

35:                                               ; preds = %31
  %36 = load i32, ptr %5, align 4, !tbaa !5
  %37 = sext i32 %36 to i64
  %38 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @primeFact, i64 noundef %37) #3
  %39 = load i32, ptr %38, align 4, !tbaa !5
  %40 = load i32, ptr %5, align 4, !tbaa !5
  %41 = icmp eq i32 %39, %40
  br i1 %41, label %42, label %47

42:                                               ; preds = %35
  %43 = load i32, ptr %3, align 4, !tbaa !5
  %44 = load i32, ptr %5, align 4, !tbaa !5
  %45 = sext i32 %44 to i64
  %46 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @primeFact, i64 noundef %45) #3
  store i32 %43, ptr %46, align 4, !tbaa !5
  br label %47

47:                                               ; preds = %42, %35
  br label %48

48:                                               ; preds = %47
  %49 = load i32, ptr %3, align 4, !tbaa !5
  %50 = load i32, ptr %5, align 4, !tbaa !5
  %51 = add nsw i32 %50, %49
  store i32 %51, ptr %5, align 4, !tbaa !5
  br label %31, !llvm.loop !9

52:                                               ; preds = %34
  br label %53

53:                                               ; preds = %52, %20
  br label %54

54:                                               ; preds = %53
  %55 = load i32, ptr %3, align 4, !tbaa !5
  %56 = add nsw i32 %55, 1
  store i32 %56, ptr %3, align 4, !tbaa !5
  br label %14, !llvm.loop !11

57:                                               ; preds = %19
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZSt4iotaIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiEvT_S7_T0_(ptr, ptr, i32 noundef) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 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 = !{!"int", !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}


; 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.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }

@primeFact = external dso_local global %"class.std::vector", align 8

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z5sievev() local_unnamed_addr #0 {
  %1 = tail call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @primeFact) #1
  %2 = tail call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @primeFact) #1
  tail call void @_ZSt4iotaIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiEvT_S7_T0_(ptr %1, ptr %2, i32 noundef 0)
  br label %4

3:                                                ; preds = %.loopexit
  ret void

4:                                                ; preds = %0, %.loopexit
  %indvars.iv = phi i64 [ 2, %0 ], [ %indvars.iv.next, %.loopexit ]
  %5 = phi i32 [ 4, %0 ], [ %22, %.loopexit ]
  %6 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @primeFact, i64 noundef %indvars.iv) #1
  %7 = load i32, ptr %6, align 4, !tbaa !5
  %8 = zext i32 %7 to i64
  %9 = icmp eq i64 %indvars.iv, %8
  %10 = icmp ult i32 %5, 10000008
  %or.cond = and i1 %9, %10
  br i1 %or.cond, label %.lr.ph.preheader, label %.loopexit

.lr.ph.preheader:                                 ; preds = %4
  %11 = zext nneg i32 %5 to i64
  %12 = trunc nuw nsw i64 %indvars.iv to i32
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.preheader, %19
  %indvars.iv20 = phi i64 [ %11, %.lr.ph.preheader ], [ %indvars.iv.next21, %19 ]
  %13 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @primeFact, i64 noundef %indvars.iv20) #1
  %14 = load i32, ptr %13, align 4, !tbaa !5
  %15 = zext i32 %14 to i64
  %16 = icmp eq i64 %indvars.iv20, %15
  br i1 %16, label %17, label %19

17:                                               ; preds = %.lr.ph
  %18 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @primeFact, i64 noundef %indvars.iv20) #1
  store i32 %12, ptr %18, align 4, !tbaa !5
  br label %19

19:                                               ; preds = %.lr.ph, %17
  %indvars.iv.next21 = add nuw nsw i64 %indvars.iv20, %indvars.iv
  %20 = icmp ult i64 %indvars.iv.next21, 10000008
  br i1 %20, label %.lr.ph, label %.loopexit, !llvm.loop !9

.loopexit:                                        ; preds = %19, %4
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %21 = mul nuw nsw i64 %indvars.iv.next, %indvars.iv.next
  %22 = trunc nuw i64 %21 to i32
  %exitcond.not = icmp eq i64 %indvars.iv.next, 3163
  br i1 %exitcond.not, label %3, label %4, !llvm.loop !11
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZSt4iotaIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiEvT_S7_T0_(ptr, ptr, i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 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 = { 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 = !{!"int", !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: EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass