; LLVM IR from vmartinv/eldiego :: grafos (centroid)

; 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.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }

@n = external dso_local global i32, align 4
@G = external dso_local global [100100 x %"class.std::vector"], align 16
@taken = external dso_local global [100100 x i8], align 16
@dstsub = external dso_local global [100100 x i32], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", 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
declare dso_local void @_Z8centroidiiii(i32 noundef, i32 noundef, i32 noundef, i32 noundef) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z3dfsiii(i32 noundef, i32 noundef, i32 noundef) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z5buildv() #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z6updateii(i32 noundef, i32 noundef) #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z5queryii(i32 noundef, i32 noundef) #1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #3 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %9 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #7
  br label %10

10:                                               ; preds = %76, %0
  %11 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @n)
  %12 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %11, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %13 = load ptr, ptr %12, align 8, !tbaa !5
  %14 = getelementptr i8, ptr %13, i64 -24
  %15 = load i64, ptr %14, align 8
  %16 = getelementptr inbounds i8, ptr %12, i64 %15
  %17 = call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %16)
  br i1 %17, label %18, label %77

18:                                               ; preds = %10
  call void @llvm.memset.p0.i64(ptr align 16 @G, i8 0, i64 2402400, i1 false)
  call void @llvm.memset.p0.i64(ptr align 16 @taken, i8 0, i64 100100, i1 false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #7
  store i32 0, ptr %3, align 4, !tbaa !8
  br label %19

19:                                               ; preds = %38, %18
  %20 = load i32, ptr %3, align 4, !tbaa !8
  %21 = load i32, ptr @n, align 4, !tbaa !8
  %22 = sub nsw i32 %21, 1
  %23 = icmp slt i32 %20, %22
  br i1 %23, label %25, label %24

24:                                               ; preds = %19
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  br label %41

25:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #7
  %26 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %4)
  %27 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %26, ptr noundef nonnull align 4 dereferenceable(4) %5)
  %28 = load i32, ptr %4, align 4, !tbaa !8
  %29 = add nsw i32 %28, -1
  store i32 %29, ptr %4, align 4, !tbaa !8
  %30 = load i32, ptr %5, align 4, !tbaa !8
  %31 = add nsw i32 %30, -1
  store i32 %31, ptr %5, align 4, !tbaa !8
  %32 = load i32, ptr %4, align 4, !tbaa !8
  %33 = sext i32 %32 to i64
  %34 = getelementptr inbounds [100100 x %"class.std::vector"], ptr @G, i64 0, i64 %33
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %34, ptr noundef nonnull align 4 dereferenceable(4) %5)
  %35 = load i32, ptr %5, align 4, !tbaa !8
  %36 = sext i32 %35 to i64
  %37 = getelementptr inbounds [100100 x %"class.std::vector"], ptr @G, i64 0, i64 %36
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %37, ptr noundef nonnull align 4 dereferenceable(4) %4)
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #7
  br label %38

38:                                               ; preds = %25
  %39 = load i32, ptr %3, align 4, !tbaa !8
  %40 = add nsw i32 %39, 1
  store i32 %40, ptr %3, align 4, !tbaa !8
  br label %19, !llvm.loop !11

41:                                               ; preds = %24
  call void @_Z8centroidiiii(i32 noundef 0, i32 noundef -1, i32 noundef 0, i32 noundef -1)
  call void @_Z3dfsiii(i32 noundef 0, i32 noundef -1, i32 noundef 0)
  call void @_Z5buildv()
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #7
  store i32 0, ptr %6, align 4, !tbaa !8
  br label %42

42:                                               ; preds = %51, %41
  %43 = load i32, ptr %6, align 4, !tbaa !8
  %44 = load i32, ptr @n, align 4, !tbaa !8
  %45 = icmp slt i32 %43, %44
  br i1 %45, label %47, label %46

46:                                               ; preds = %42
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #7
  br label %54

47:                                               ; preds = %42
  %48 = load i32, ptr %6, align 4, !tbaa !8
  %49 = sext i32 %48 to i64
  %50 = getelementptr inbounds [100100 x i32], ptr @dstsub, i64 0, i64 %49
  store i32 1000000000, ptr %50, align 4, !tbaa !8
  br label %51

51:                                               ; preds = %47
  %52 = load i32, ptr %6, align 4, !tbaa !8
  %53 = add nsw i32 %52, 1
  store i32 %53, ptr %6, align 4, !tbaa !8
  br label %42, !llvm.loop !13

54:                                               ; preds = %46
  call void @_Z6updateii(i32 noundef 0, i32 noundef 0)
  br label %55

55:                                               ; preds = %75, %54
  %56 = load i32, ptr %2, align 4, !tbaa !8
  %57 = add nsw i32 %56, -1
  store i32 %57, ptr %2, align 4, !tbaa !8
  %58 = icmp ne i32 %56, 0
  br i1 %58, label %59, label %76

59:                                               ; preds = %55
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #7
  %60 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %7)
  %61 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %60, ptr noundef nonnull align 4 dereferenceable(4) %8)
  %62 = load i32, ptr %8, align 4, !tbaa !8
  %63 = add nsw i32 %62, -1
  store i32 %63, ptr %8, align 4, !tbaa !8
  %64 = load i32, ptr %7, align 4, !tbaa !8
  %65 = icmp eq i32 %64, 1
  br i1 %65, label %66, label %69

66:                                               ; preds = %59
  %67 = load i32, ptr %8, align 4, !tbaa !8
  %68 = load i32, ptr %8, align 4, !tbaa !8
  call void @_Z6updateii(i32 noundef %67, i32 noundef %68)
  br label %75

69:                                               ; preds = %59
  %70 = load i32, ptr %8, align 4, !tbaa !8
  %71 = load i32, ptr %8, align 4, !tbaa !8
  %72 = call noundef i32 @_Z5queryii(i32 noundef %70, i32 noundef %71)
  %73 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %72)
  %74 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %73, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %75

75:                                               ; preds = %69, %66
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #7
  br label %55, !llvm.loop !14

76:                                               ; preds = %55
  br label %10, !llvm.loop !15

77:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  ret i32 0
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #4

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #4

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264)) #1 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #5

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #1 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #4

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #6

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 = { mustprogress norecurse 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 = { "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 #5 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #6 = { 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 #7 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = distinct !{!14, !12}
!15 = distinct !{!15, !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"

%"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.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }

@n = external dso_local global i32, align 4
@G = external dso_local global [100100 x %"class.std::vector"], align 16
@taken = external dso_local local_unnamed_addr global [100100 x i8], align 16
@dstsub = external dso_local local_unnamed_addr global [100100 x i32], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; 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
declare dso_local void @_Z8centroidiiii(i32 noundef, i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z3dfsiii(i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z5buildv() local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z6updateii(i32 noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z5queryii(i32 noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #3 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #7
  %7 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @n)
  %8 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %7, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %9 = load ptr, ptr %8, align 8, !tbaa !5
  %10 = getelementptr i8, ptr %9, i64 -24
  %11 = load i64, ptr %10, align 8
  %12 = getelementptr inbounds i8, ptr %8, i64 %11
  %13 = call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %12)
  br i1 %13, label %.lr.ph15, label %._crit_edge16

.loopexit:                                        ; preds = %57, %._crit_edge10
  %14 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @n)
  %15 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %14, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %16 = load ptr, ptr %15, align 8, !tbaa !5
  %17 = getelementptr i8, ptr %16, i64 -24
  %18 = load i64, ptr %17, align 8
  %19 = getelementptr inbounds i8, ptr %15, i64 %18
  %20 = call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %19)
  br i1 %20, label %.lr.ph15, label %._crit_edge16, !llvm.loop !8

.lr.ph15:                                         ; preds = %0, %.loopexit
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 16 dereferenceable(2402400) @G, i8 0, i64 2402400, i1 false)
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 16 dereferenceable(100100) @taken, i8 0, i64 100100, i1 false)
  %21 = load i32, ptr @n, align 4, !tbaa !10
  %22 = icmp sgt i32 %21, 1
  br i1 %22, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %.lr.ph15
  call void @_Z8centroidiiii(i32 noundef 0, i32 noundef -1, i32 noundef 0, i32 noundef -1)
  call void @_Z3dfsiii(i32 noundef 0, i32 noundef -1, i32 noundef 0)
  call void @_Z5buildv()
  %23 = load i32, ptr @n, align 4, !tbaa !10
  %24 = icmp sgt i32 %23, 0
  br i1 %24, label %.lr.ph9.preheader, label %._crit_edge10

.lr.ph9.preheader:                                ; preds = %._crit_edge
  %wide.trip.count = zext nneg i32 %23 to i64
  %min.iters.check = icmp ult i32 %23, 8
  br i1 %min.iters.check, label %.lr.ph9.preheader18, label %vector.ph

.lr.ph9.preheader18:                              ; preds = %middle.block, %.lr.ph9.preheader
  %indvars.iv.ph = phi i64 [ 0, %.lr.ph9.preheader ], [ %n.vec, %middle.block ]
  br label %.lr.ph9

vector.ph:                                        ; preds = %.lr.ph9.preheader
  %n.vec = and i64 %wide.trip.count, 2147483640
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %25 = getelementptr inbounds [100100 x i32], ptr @dstsub, i64 0, i64 %index
  %26 = getelementptr inbounds i8, ptr %25, i64 16
  store <4 x i32> <i32 1000000000, i32 1000000000, i32 1000000000, i32 1000000000>, ptr %25, align 16, !tbaa !10
  store <4 x i32> <i32 1000000000, i32 1000000000, i32 1000000000, i32 1000000000>, ptr %26, align 16, !tbaa !10
  %index.next = add nuw i64 %index, 8
  %27 = icmp eq i64 %index.next, %n.vec
  br i1 %27, label %middle.block, label %vector.body, !llvm.loop !13

middle.block:                                     ; preds = %vector.body
  %cmp.n = icmp eq i64 %n.vec, %wide.trip.count
  br i1 %cmp.n, label %._crit_edge10, label %.lr.ph9.preheader18

.lr.ph:                                           ; preds = %.lr.ph15, %.lr.ph
  %.056 = phi i32 [ %39, %.lr.ph ], [ 0, %.lr.ph15 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #7
  %28 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %29 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %28, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %30 = load i32, ptr %2, align 4, !tbaa !10
  %31 = add nsw i32 %30, -1
  store i32 %31, ptr %2, align 4, !tbaa !10
  %32 = load i32, ptr %3, align 4, !tbaa !10
  %33 = add nsw i32 %32, -1
  store i32 %33, ptr %3, align 4, !tbaa !10
  %34 = sext i32 %31 to i64
  %35 = getelementptr inbounds [100100 x %"class.std::vector"], ptr @G, i64 0, i64 %34
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %35, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %36 = load i32, ptr %3, align 4, !tbaa !10
  %37 = sext i32 %36 to i64
  %38 = getelementptr inbounds [100100 x %"class.std::vector"], ptr @G, i64 0, i64 %37
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %38, ptr noundef nonnull align 4 dereferenceable(4) %2)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #7
  %39 = add nuw nsw i32 %.056, 1
  %40 = load i32, ptr @n, align 4, !tbaa !10
  %41 = add nsw i32 %40, -1
  %42 = icmp slt i32 %39, %41
  br i1 %42, label %.lr.ph, label %._crit_edge, !llvm.loop !16

._crit_edge10:                                    ; preds = %.lr.ph9, %middle.block, %._crit_edge
  call void @_Z6updateii(i32 noundef 0, i32 noundef 0)
  %43 = load i32, ptr %1, align 4, !tbaa !10
  %44 = add nsw i32 %43, -1
  store i32 %44, ptr %1, align 4, !tbaa !10
  %.not11 = icmp eq i32 %43, 0
  br i1 %.not11, label %.loopexit, label %.lr.ph13

.lr.ph9:                                          ; preds = %.lr.ph9.preheader18, %.lr.ph9
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph9 ], [ %indvars.iv.ph, %.lr.ph9.preheader18 ]
  %45 = getelementptr inbounds [100100 x i32], ptr @dstsub, i64 0, i64 %indvars.iv
  store i32 1000000000, ptr %45, align 4, !tbaa !10
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge10, label %.lr.ph9, !llvm.loop !17

.lr.ph13:                                         ; preds = %._crit_edge10, %57
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #7
  %46 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %4)
  %47 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %46, ptr noundef nonnull align 4 dereferenceable(4) %5)
  %48 = load i32, ptr %5, align 4, !tbaa !10
  %49 = add nsw i32 %48, -1
  store i32 %49, ptr %5, align 4, !tbaa !10
  %50 = load i32, ptr %4, align 4, !tbaa !10
  %51 = icmp eq i32 %50, 1
  br i1 %51, label %52, label %53

52:                                               ; preds = %.lr.ph13
  call void @_Z6updateii(i32 noundef %49, i32 noundef %49)
  br label %57

53:                                               ; preds = %.lr.ph13
  %54 = call noundef i32 @_Z5queryii(i32 noundef %49, i32 noundef %49)
  %55 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %54)
  %56 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %55, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %57

57:                                               ; preds = %53, %52
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #7
  %58 = load i32, ptr %1, align 4, !tbaa !10
  %59 = add nsw i32 %58, -1
  store i32 %59, ptr %1, align 4, !tbaa !10
  %.not = icmp eq i32 %58, 0
  br i1 %.not, label %.loopexit, label %.lr.ph13, !llvm.loop !18

._crit_edge16:                                    ; preds = %.loopexit, %0
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  ret i32 0
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) local_unnamed_addr #4

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #4

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #5

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #1 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #4

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #6

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 = { mustprogress norecurse 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 = { "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 #5 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #6 = { 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 #7 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}
!10 = !{!11, !11, i64 0}
!11 = !{!"int", !12, i64 0}
!12 = !{!"omnipotent char", !7, i64 0}
!13 = distinct !{!13, !9, !14, !15}
!14 = !{!"llvm.loop.isvectorized", i32 1}
!15 = !{!"llvm.loop.unroll.runtime.disable"}
!16 = distinct !{!16, !9}
!17 = distinct !{!17, !9, !15, !14}
!18 = distinct !{!18, !9}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopLoadEliminationPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,LoopVectorizePass,SROAPass,SimplifyCFGPass,TailCallElimPass