; LLVM IR from upupming/algorithm :: acwing/算法竞赛进阶指南/0x08-总结与练习/118. 分形 (main)

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

@n = external dso_local global i32, align 4
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z8getBoxesi(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8, i32 noundef) #0

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

declare i32 @__gxx_personality_v0(...)

; 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 i64 @_ZNKSt6vectorIS_IcSaIcEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IcSaIcEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIcSaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt6vectorIcSaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IcSaIcEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #3 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.std::vector", align 8
  %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 ptr, align 8
  %9 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  br label %10

10:                                               ; preds = %72, %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 = load ptr, ptr %11, align 8, !tbaa !5
  %13 = getelementptr i8, ptr %12, i64 -24
  %14 = load i64, ptr %13, align 8
  %15 = getelementptr inbounds i8, ptr %11, i64 %14
  %16 = call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %15)
  br i1 %16, label %17, label %20

17:                                               ; preds = %10
  %18 = load i32, ptr @n, align 4, !tbaa !8
  %19 = icmp ne i32 %18, -1
  br label %20

20:                                               ; preds = %17, %10
  %21 = phi i1 [ false, %10 ], [ %19, %17 ]
  br i1 %21, label %22, label %78

22:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 24, ptr %2) #6
  %23 = load i32, ptr @n, align 4, !tbaa !8
  call void @_Z8getBoxesi(ptr dead_on_unwind writable sret(%"class.std::vector") align 8 %2, i32 noundef %23)
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #6
  %24 = call noundef i64 @_ZNKSt6vectorIS_IcSaIcEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  %25 = trunc i64 %24 to i32
  store i32 %25, ptr %3, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #6
  %26 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IcSaIcEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef 0) #6
  %27 = call noundef i64 @_ZNKSt6vectorIcSaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %26) #6
  %28 = trunc i64 %27 to i32
  store i32 %28, ptr %4, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #6
  store i32 0, ptr %5, align 4, !tbaa !8
  br label %29

29:                                               ; preds = %60, %22
  %30 = load i32, ptr %5, align 4, !tbaa !8
  %31 = load i32, ptr %3, align 4, !tbaa !8
  %32 = icmp slt i32 %30, %31
  br i1 %32, label %34, label %33

33:                                               ; preds = %29
  store i32 4, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #6
  br label %68

34:                                               ; preds = %29
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #6
  store i32 0, ptr %7, align 4, !tbaa !8
  br label %35

35:                                               ; preds = %50, %34
  %36 = load i32, ptr %7, align 4, !tbaa !8
  %37 = load i32, ptr %4, align 4, !tbaa !8
  %38 = icmp slt i32 %36, %37
  br i1 %38, label %40, label %39

39:                                               ; preds = %35
  store i32 7, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #6
  br label %57

40:                                               ; preds = %35
  %41 = load i32, ptr %5, align 4, !tbaa !8
  %42 = sext i32 %41 to i64
  %43 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IcSaIcEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %42) #6
  %44 = load i32, ptr %7, align 4, !tbaa !8
  %45 = sext i32 %44 to i64
  %46 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt6vectorIcSaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %43, i64 noundef %45) #6
  %47 = load i8, ptr %46, align 1, !tbaa !11
  %48 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i8 noundef signext %47)
          to label %49 unwind label %53

49:                                               ; preds = %40
  br label %50

50:                                               ; preds = %49
  %51 = load i32, ptr %7, align 4, !tbaa !8
  %52 = add nsw i32 %51, 1
  store i32 %52, ptr %7, align 4, !tbaa !8
  br label %35, !llvm.loop !12

53:                                               ; preds = %40
  %54 = landingpad { ptr, i32 }
          cleanup
  %55 = extractvalue { ptr, i32 } %54, 0
  store ptr %55, ptr %8, align 8
  %56 = extractvalue { ptr, i32 } %54, 1
  store i32 %56, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #6
  br label %67

57:                                               ; preds = %39
  %58 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %59 unwind label %63

59:                                               ; preds = %57
  br label %60

60:                                               ; preds = %59
  %61 = load i32, ptr %5, align 4, !tbaa !8
  %62 = add nsw i32 %61, 1
  store i32 %62, ptr %5, align 4, !tbaa !8
  br label %29, !llvm.loop !14

63:                                               ; preds = %57
  %64 = landingpad { ptr, i32 }
          cleanup
  %65 = extractvalue { ptr, i32 } %64, 0
  store ptr %65, ptr %8, align 8
  %66 = extractvalue { ptr, i32 } %64, 1
  store i32 %66, ptr %9, align 4
  br label %67

67:                                               ; preds = %63, %53
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #6
  br label %77

68:                                               ; preds = %33
  %69 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
          to label %70 unwind label %73

70:                                               ; preds = %68
  %71 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %69, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %72 unwind label %73

72:                                               ; preds = %70
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #6
  call void @_ZNSt6vectorIS_IcSaIcEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %2) #6
  br label %10, !llvm.loop !15

73:                                               ; preds = %70, %68
  %74 = landingpad { ptr, i32 }
          cleanup
  %75 = extractvalue { ptr, i32 } %74, 0
  store ptr %75, ptr %8, align 8
  %76 = extractvalue { ptr, i32 } %74, 1
  store i32 %76, ptr %9, align 4
  br label %77

77:                                               ; preds = %73, %67
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #6
  call void @_ZNSt6vectorIS_IcSaIcEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %2) #6
  br label %79

78:                                               ; preds = %20
  ret i32 0

79:                                               ; preds = %77
  %80 = load ptr, ptr %8, align 8
  %81 = load i32, ptr %9, align 4
  %82 = insertvalue { ptr, i32 } poison, ptr %80, 0
  %83 = insertvalue { ptr, i32 } %82, i32 %81, 1
  resume { ptr, i32 } %83
}

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)) #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) #5

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #0 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)) #5

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #5

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 = { 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 = { 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 #6 = { 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 = !{!10, !10, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = distinct !{!14, !13}
!15 = distinct !{!15, !13}


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

@n = external dso_local global i32, align 4
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z8getBoxesi(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8, i32 noundef) local_unnamed_addr #0

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

declare i32 @__gxx_personality_v0(...)

; 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 i64 @_ZNKSt6vectorIS_IcSaIcEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IcSaIcEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIcSaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt6vectorIcSaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IcSaIcEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #3 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::vector", align 8
  %2 = 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)
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = getelementptr i8, ptr %3, i64 -24
  %5 = load i64, ptr %4, align 8
  %6 = getelementptr inbounds i8, ptr %2, i64 %5
  %7 = tail call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %6)
  %8 = load i32, ptr @n, align 4
  %9 = icmp ne i32 %8, -1
  %10 = select i1 %7, i1 %9, i1 false
  br i1 %10, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %0, %36
  %11 = phi i32 [ %43, %36 ], [ %8, %0 ]
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %1) #6
  call void @_Z8getBoxesi(ptr dead_on_unwind nonnull writable sret(%"class.std::vector") align 8 %1, i32 noundef %11)
  %12 = call noundef i64 @_ZNKSt6vectorIS_IcSaIcEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #6
  %13 = trunc i64 %12 to i32
  %14 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IcSaIcEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef 0) #6
  %15 = call noundef i64 @_ZNKSt6vectorIcSaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %14) #6
  %16 = icmp sgt i32 %13, 0
  br i1 %16, label %.preheader.lr.ph, label %._crit_edge17

.preheader.lr.ph:                                 ; preds = %.lr.ph
  %17 = trunc i64 %15 to i32
  %18 = icmp sgt i32 %17, 0
  br i1 %18, label %.preheader.us.preheader, label %.preheader

.preheader.us.preheader:                          ; preds = %.preheader.lr.ph
  %wide.trip.count27 = and i64 %12, 2147483647
  %wide.trip.count = and i64 %15, 2147483647
  br label %.preheader.us

.preheader.us:                                    ; preds = %.preheader.us.preheader, %19
  %indvars.iv24 = phi i64 [ 0, %.preheader.us.preheader ], [ %indvars.iv.next25, %19 ]
  br label %20

19:                                               ; preds = %._crit_edge.us
  %indvars.iv.next25 = add nuw nsw i64 %indvars.iv24, 1
  %exitcond28.not = icmp eq i64 %indvars.iv.next25, %wide.trip.count27
  br i1 %exitcond28.not, label %._crit_edge17, label %.preheader.us, !llvm.loop !8

20:                                               ; preds = %.preheader.us, %25
  %indvars.iv = phi i64 [ 0, %.preheader.us ], [ %indvars.iv.next, %25 ]
  %21 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IcSaIcEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %indvars.iv24) #6
  %22 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt6vectorIcSaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %21, i64 noundef %indvars.iv) #6
  %23 = load i8, ptr %22, align 1, !tbaa !10
  %24 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i8 noundef signext %23)
          to label %25 unwind label %.split19.us

25:                                               ; preds = %20
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond23.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond23.not, label %._crit_edge.us, label %20, !llvm.loop !12

._crit_edge.us:                                   ; preds = %25
  %26 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %19 unwind label %.split.us

.split.us:                                        ; preds = %._crit_edge.us
  %27 = landingpad { ptr, i32 }
          cleanup
  br label %48

.split19.us:                                      ; preds = %20
  %28 = landingpad { ptr, i32 }
          cleanup
  br label %48

.preheader:                                       ; preds = %.preheader.lr.ph, %31
  %.01216 = phi i32 [ %32, %31 ], [ 0, %.preheader.lr.ph ]
  %29 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %31 unwind label %.split

._crit_edge17:                                    ; preds = %31, %19, %.lr.ph
  %30 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str)
          to label %34 unwind label %46

31:                                               ; preds = %.preheader
  %32 = add nuw nsw i32 %.01216, 1
  %exitcond.not = icmp eq i32 %32, %13
  br i1 %exitcond.not, label %._crit_edge17, label %.preheader, !llvm.loop !8

.split:                                           ; preds = %.preheader
  %33 = landingpad { ptr, i32 }
          cleanup
  br label %48

34:                                               ; preds = %._crit_edge17
  %35 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %30, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %36 unwind label %46

36:                                               ; preds = %34
  call void @_ZNSt6vectorIS_IcSaIcEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %1) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %1) #6
  %37 = 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)
  %38 = load ptr, ptr %37, align 8, !tbaa !5
  %39 = getelementptr i8, ptr %38, i64 -24
  %40 = load i64, ptr %39, align 8
  %41 = getelementptr inbounds i8, ptr %37, i64 %40
  %42 = call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %41)
  %43 = load i32, ptr @n, align 4
  %44 = icmp ne i32 %43, -1
  %45 = select i1 %42, i1 %44, i1 false
  br i1 %45, label %.lr.ph, label %._crit_edge, !llvm.loop !13

46:                                               ; preds = %34, %._crit_edge17
  %47 = landingpad { ptr, i32 }
          cleanup
  br label %48

48:                                               ; preds = %.split, %.split.us, %.split19.us, %46
  %.pn.pn = phi { ptr, i32 } [ %47, %46 ], [ %28, %.split19.us ], [ %33, %.split ], [ %27, %.split.us ]
  call void @_ZNSt6vectorIS_IcSaIcEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %1) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn.pn

._crit_edge:                                      ; preds = %36, %0
  ret i32 0
}

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 #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) local_unnamed_addr #5

; 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 #0 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)) #5

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #5

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 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 = { 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 = { 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 #6 = { 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 = !{!"omnipotent char", !7, i64 0}
!12 = distinct !{!12, !9}
!13 = distinct !{!13, !9}


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