; LLVM IR from freddiev4/dailyprogrammerchallenges :: Hard Challenges/Challenge 0047 Hard/solutions (solution)

; 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::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }

@_ZL4FACT = external hidden global [21 x i64], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [6 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z1fB5cxx11mm(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, i64 noundef, i64 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 void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) 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 i64, align 8
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::__cxx11::basic_string", align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #5
  store i64 0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  store i64 1, ptr %3, align 8, !tbaa !5
  br label %10

10:                                               ; preds = %18, %0
  %11 = load i64, ptr %2, align 8, !tbaa !5
  %12 = icmp ule i64 %11, 20
  br i1 %12, label %14, label %13

13:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  br label %23

14:                                               ; preds = %10
  %15 = load i64, ptr %3, align 8, !tbaa !5
  %16 = load i64, ptr %2, align 8, !tbaa !5
  %17 = getelementptr inbounds [21 x i64], ptr @_ZL4FACT, i64 0, i64 %16
  store i64 %15, ptr %17, align 8, !tbaa !5
  br label %18

18:                                               ; preds = %14
  %19 = load i64, ptr %2, align 8, !tbaa !5
  %20 = add i64 %19, 1
  store i64 %20, ptr %2, align 8, !tbaa !5
  %21 = load i64, ptr %3, align 8, !tbaa !5
  %22 = mul i64 %21, %20
  store i64 %22, ptr %3, align 8, !tbaa !5
  br label %10, !llvm.loop !9

23:                                               ; preds = %13
  br label %24

24:                                               ; preds = %64, %23
  %25 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !11
  %26 = getelementptr i8, ptr %25, i64 -24
  %27 = load i64, ptr %26, align 8
  %28 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %27
  %29 = call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %28)
  br i1 %29, label %30, label %69

30:                                               ; preds = %24
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  %31 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERm(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %4)
  %32 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERm(ptr noundef nonnull align 8 dereferenceable(16) %31, ptr noundef nonnull align 8 dereferenceable(8) %5)
  %33 = load i64, ptr %4, align 8, !tbaa !5
  %34 = icmp eq i64 %33, 0
  br i1 %34, label %35, label %38

35:                                               ; preds = %30
  %36 = load i64, ptr %5, align 8, !tbaa !5
  %37 = icmp eq i64 %36, 0
  br i1 %37, label %44, label %38

38:                                               ; preds = %35, %30
  %39 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !11
  %40 = getelementptr i8, ptr %39, i64 -24
  %41 = load i64, ptr %40, align 8
  %42 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %41
  %43 = call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEntEv(ptr noundef nonnull align 8 dereferenceable(264) %42)
  br i1 %43, label %44, label %45

44:                                               ; preds = %38, %35
  store i32 6, ptr %6, align 4
  br label %62

45:                                               ; preds = %38
  %46 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.2)
  %47 = load i64, ptr %4, align 8, !tbaa !5
  %48 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) %46, i64 noundef %47)
  %49 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %48, ptr noundef @.str.3)
  %50 = load i64, ptr %5, align 8, !tbaa !5
  %51 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) %49, i64 noundef %50)
  %52 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %51, ptr noundef @.str.4)
  call void @llvm.lifetime.start.p0(i64 32, ptr %7) #5
  %53 = load i64, ptr %4, align 8, !tbaa !5
  %54 = load i64, ptr %5, align 8, !tbaa !5
  %55 = sub i64 %54, 1
  call void @_Z1fB5cxx11mm(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %7, i64 noundef %53, i64 noundef %55)
  %56 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) %52, ptr noundef nonnull align 8 dereferenceable(32) %7)
          to label %57 unwind label %65

57:                                               ; preds = %45
  %58 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %56, i8 noundef signext 34)
          to label %59 unwind label %65

59:                                               ; preds = %57
  %60 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %58, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %61 unwind label %65

61:                                               ; preds = %59
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %7) #5
  store i32 0, ptr %6, align 4
  br label %62

62:                                               ; preds = %61, %44
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  %63 = load i32, ptr %6, align 4
  switch i32 %63, label %75 [
    i32 0, label %64
    i32 6, label %69
  ]

64:                                               ; preds = %62
  br label %24, !llvm.loop !13

65:                                               ; preds = %59, %57, %45
  %66 = landingpad { ptr, i32 }
          cleanup
  %67 = extractvalue { ptr, i32 } %66, 0
  store ptr %67, ptr %8, align 8
  %68 = extractvalue { ptr, i32 } %66, 1
  store i32 %68, ptr %9, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %7) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  br label %70

69:                                               ; preds = %62, %24
  ret i32 0

70:                                               ; preds = %65
  %71 = load ptr, ptr %8, align 8
  %72 = load i32, ptr %9, align 4
  %73 = insertvalue { ptr, i32 } poison, ptr %71, 0
  %74 = insertvalue { ptr, i32 } %73, i32 %72, 1
  resume { ptr, i32 } %74

75:                                               ; preds = %62
  unreachable
}

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264)) #0 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERm(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEntEv(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) #4

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) #4

; 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) #4

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #0 align 2

; 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)) #4

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 = { 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 #5 = { 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", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !12, i64 0}
!12 = !{!"vtable pointer", !8, i64 0}
!13 = distinct !{!13, !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::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::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }

@_ZL4FACT = external hidden local_unnamed_addr global [21 x i64], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [6 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z1fB5cxx11mm(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, i64 noundef, i64 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 void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) 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 {
.preheader:
  %0 = alloca i64, align 8
  %1 = alloca i64, align 8
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  store i64 1, ptr @_ZL4FACT, align 16, !tbaa !5
  store i64 1, ptr getelementptr inbounds (i8, ptr @_ZL4FACT, i64 8), align 8, !tbaa !5
  store i64 2, ptr getelementptr inbounds (i8, ptr @_ZL4FACT, i64 16), align 16, !tbaa !5
  store i64 6, ptr getelementptr inbounds (i8, ptr @_ZL4FACT, i64 24), align 8, !tbaa !5
  store i64 24, ptr getelementptr inbounds (i8, ptr @_ZL4FACT, i64 32), align 16, !tbaa !5
  store i64 120, ptr getelementptr inbounds (i8, ptr @_ZL4FACT, i64 40), align 8, !tbaa !5
  store i64 720, ptr getelementptr inbounds (i8, ptr @_ZL4FACT, i64 48), align 16, !tbaa !5
  store i64 5040, ptr getelementptr inbounds (i8, ptr @_ZL4FACT, i64 56), align 8, !tbaa !5
  store i64 40320, ptr getelementptr inbounds (i8, ptr @_ZL4FACT, i64 64), align 16, !tbaa !5
  store i64 362880, ptr getelementptr inbounds (i8, ptr @_ZL4FACT, i64 72), align 8, !tbaa !5
  store i64 3628800, ptr getelementptr inbounds (i8, ptr @_ZL4FACT, i64 80), align 16, !tbaa !5
  store i64 39916800, ptr getelementptr inbounds (i8, ptr @_ZL4FACT, i64 88), align 8, !tbaa !5
  store i64 479001600, ptr getelementptr inbounds (i8, ptr @_ZL4FACT, i64 96), align 16, !tbaa !5
  store i64 6227020800, ptr getelementptr inbounds (i8, ptr @_ZL4FACT, i64 104), align 8, !tbaa !5
  store i64 87178291200, ptr getelementptr inbounds (i8, ptr @_ZL4FACT, i64 112), align 16, !tbaa !5
  store i64 1307674368000, ptr getelementptr inbounds (i8, ptr @_ZL4FACT, i64 120), align 8, !tbaa !5
  store i64 20922789888000, ptr getelementptr inbounds (i8, ptr @_ZL4FACT, i64 128), align 16, !tbaa !5
  store i64 355687428096000, ptr getelementptr inbounds (i8, ptr @_ZL4FACT, i64 136), align 8, !tbaa !5
  store i64 6402373705728000, ptr getelementptr inbounds (i8, ptr @_ZL4FACT, i64 144), align 16, !tbaa !5
  store i64 121645100408832000, ptr getelementptr inbounds (i8, ptr @_ZL4FACT, i64 152), align 8, !tbaa !5
  store i64 2432902008176640000, ptr getelementptr inbounds (i8, ptr @_ZL4FACT, i64 160), align 16, !tbaa !5
  %3 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !9
  %4 = getelementptr i8, ptr %3, i64 -24
  %5 = load i64, ptr %4, align 8
  %6 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %5
  %7 = tail call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %6)
  br i1 %7, label %.lr.ph, label %.loopexit

.lr.ph:                                           ; preds = %.preheader, %36
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %0) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #5
  %8 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERm(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %0)
  %9 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERm(ptr noundef nonnull align 8 dereferenceable(16) %8, ptr noundef nonnull align 8 dereferenceable(8) %1)
  %10 = load i64, ptr %0, align 8, !tbaa !5
  %11 = icmp eq i64 %10, 0
  %12 = load i64, ptr %1, align 8
  %13 = icmp eq i64 %12, 0
  %or.cond = select i1 %11, i1 %13, i1 false
  br i1 %or.cond, label %.thread, label %14

14:                                               ; preds = %.lr.ph
  %15 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !9
  %16 = getelementptr i8, ptr %15, i64 -24
  %17 = load i64, ptr %16, align 8
  %18 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %17
  %19 = call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEntEv(ptr noundef nonnull align 8 dereferenceable(264) %18)
  br i1 %19, label %.thread, label %20

20:                                               ; preds = %14
  %21 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.2)
  %22 = load i64, ptr %0, align 8, !tbaa !5
  %23 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) %21, i64 noundef %22)
  %24 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %23, ptr noundef nonnull @.str.3)
  %25 = load i64, ptr %1, align 8, !tbaa !5
  %26 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) %24, i64 noundef %25)
  %27 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %26, ptr noundef nonnull @.str.4)
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %2) #5
  %28 = load i64, ptr %0, align 8, !tbaa !5
  %29 = load i64, ptr %1, align 8, !tbaa !5
  %30 = add i64 %29, -1
  call void @_Z1fB5cxx11mm(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %2, i64 noundef %28, i64 noundef %30)
  %31 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) %27, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %32 unwind label %42

32:                                               ; preds = %20
  %33 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %31, i8 noundef signext 34)
          to label %34 unwind label %42

34:                                               ; preds = %32
  %35 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %33, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %36 unwind label %42

.thread:                                          ; preds = %.lr.ph, %14
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %0) #5
  br label %.loopexit

36:                                               ; preds = %34
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %0) #5
  %37 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !9
  %38 = getelementptr i8, ptr %37, i64 -24
  %39 = load i64, ptr %38, align 8
  %40 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %39
  %41 = call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %40)
  br i1 %41, label %.lr.ph, label %.loopexit

42:                                               ; preds = %34, %32, %20
  %43 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %0) #5
  resume { ptr, i32 } %43

.loopexit:                                        ; preds = %36, %.preheader, %.thread
  ret i32 0
}

; 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: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERm(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEntEv(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 #4

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #4

; 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 #4

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) local_unnamed_addr #0 align 2

; 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)) #4

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 = { 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 #5 = { 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", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"vtable pointer", !8, i64 0}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass