; LLVM IR from imteekay/algorithms :: competitive-programming/uri (rails_again)

; 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] }
%"class.std::queue" = type { %"class.std::deque" }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<char, std::allocator<char>>::_Deque_impl" }
%"struct.std::_Deque_base<char, std::allocator<char>>::_Deque_impl" = type { %"struct.std::_Deque_base<char, std::allocator<char>>::_Deque_impl_data" }
%"struct.std::_Deque_base<char, std::allocator<char>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator", %"struct.std::_Deque_iterator" }
%"struct.std::_Deque_iterator" = type { ptr, ptr, ptr, ptr }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z13requiredOrderB5cxx11RSt5queueIcSt5dequeIcSaIcEEES4_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 8 dereferenceable(80)) #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 i32, align 4
  %3 = alloca i8, align 1
  %4 = alloca %"class.std::queue", align 8
  %5 = alloca %"class.std::queue", align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca %"class.std::__cxx11::basic_string", align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #7
  call void @llvm.lifetime.start.p0(i64 1, ptr %3) #7
  br label %11

11:                                               ; preds = %67, %0
  %12 = 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)
  %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 %21

18:                                               ; preds = %11
  %19 = load i32, ptr %2, align 4, !tbaa !8
  %20 = icmp ne i32 %19, 0
  br label %21

21:                                               ; preds = %18, %11
  %22 = phi i1 [ false, %11 ], [ %20, %18 ]
  br i1 %22, label %23, label %79

23:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 80, ptr %4) #7
  call void @_ZNSt5queueIcSt5dequeIcSaIcEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %4)
  call void @llvm.lifetime.start.p0(i64 80, ptr %5) #7
  invoke void @_ZNSt5queueIcSt5dequeIcSaIcEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %5)
          to label %24 unwind label %30

24:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #7
  store i32 0, ptr %8, align 4, !tbaa !8
  br label %25

25:                                               ; preds = %38, %24
  %26 = load i32, ptr %8, align 4, !tbaa !8
  %27 = load i32, ptr %2, align 4, !tbaa !8
  %28 = icmp slt i32 %26, %27
  br i1 %28, label %34, label %29

29:                                               ; preds = %25
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  br label %45

30:                                               ; preds = %23
  %31 = landingpad { ptr, i32 }
          cleanup
  %32 = extractvalue { ptr, i32 } %31, 0
  store ptr %32, ptr %6, align 8
  %33 = extractvalue { ptr, i32 } %31, 1
  store i32 %33, ptr %7, align 4
  br label %78

34:                                               ; preds = %25
  %35 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcEERSt13basic_istreamIT_T0_ES6_RS3_(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %36 unwind label %41

36:                                               ; preds = %34
  invoke void @_ZNSt5queueIcSt5dequeIcSaIcEEE4pushERKc(ptr noundef nonnull align 8 dereferenceable(80) %4, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %37 unwind label %41

37:                                               ; preds = %36
  br label %38

38:                                               ; preds = %37
  %39 = load i32, ptr %8, align 4, !tbaa !8
  %40 = add nsw i32 %39, 1
  store i32 %40, ptr %8, align 4, !tbaa !8
  br label %25, !llvm.loop !11

41:                                               ; preds = %36, %34
  %42 = landingpad { ptr, i32 }
          cleanup
  %43 = extractvalue { ptr, i32 } %42, 0
  store ptr %43, ptr %6, align 8
  %44 = extractvalue { ptr, i32 } %42, 1
  store i32 %44, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  br label %77

45:                                               ; preds = %29
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #7
  store i32 0, ptr %9, align 4, !tbaa !8
  br label %46

46:                                               ; preds = %55, %45
  %47 = load i32, ptr %9, align 4, !tbaa !8
  %48 = load i32, ptr %2, align 4, !tbaa !8
  %49 = icmp slt i32 %47, %48
  br i1 %49, label %51, label %50

50:                                               ; preds = %46
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #7
  br label %62

51:                                               ; preds = %46
  %52 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcEERSt13basic_istreamIT_T0_ES6_RS3_(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %53 unwind label %58

53:                                               ; preds = %51
  invoke void @_ZNSt5queueIcSt5dequeIcSaIcEEE4pushERKc(ptr noundef nonnull align 8 dereferenceable(80) %5, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %54 unwind label %58

54:                                               ; preds = %53
  br label %55

55:                                               ; preds = %54
  %56 = load i32, ptr %9, align 4, !tbaa !8
  %57 = add nsw i32 %56, 1
  store i32 %57, ptr %9, align 4, !tbaa !8
  br label %46, !llvm.loop !13

58:                                               ; preds = %53, %51
  %59 = landingpad { ptr, i32 }
          cleanup
  %60 = extractvalue { ptr, i32 } %59, 0
  store ptr %60, ptr %6, align 8
  %61 = extractvalue { ptr, i32 } %59, 1
  store i32 %61, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #7
  br label %77

62:                                               ; preds = %50
  call void @llvm.lifetime.start.p0(i64 32, ptr %10) #7
  invoke void @_Z13requiredOrderB5cxx11RSt5queueIcSt5dequeIcSaIcEEES4_(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %10, ptr noundef nonnull align 8 dereferenceable(80) %4, ptr noundef nonnull align 8 dereferenceable(80) %5)
          to label %63 unwind label %68

63:                                               ; preds = %62
  %64 = 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) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(32) %10)
          to label %65 unwind label %72

65:                                               ; preds = %63
  %66 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %64, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %67 unwind label %72

67:                                               ; preds = %65
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %10) #7
  call void @_ZNSt5queueIcSt5dequeIcSaIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %5) #7
  call void @llvm.lifetime.end.p0(i64 80, ptr %5) #7
  call void @_ZNSt5queueIcSt5dequeIcSaIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %4) #7
  call void @llvm.lifetime.end.p0(i64 80, ptr %4) #7
  br label %11, !llvm.loop !14

68:                                               ; preds = %62
  %69 = landingpad { ptr, i32 }
          cleanup
  %70 = extractvalue { ptr, i32 } %69, 0
  store ptr %70, ptr %6, align 8
  %71 = extractvalue { ptr, i32 } %69, 1
  store i32 %71, ptr %7, align 4
  br label %76

72:                                               ; preds = %65, %63
  %73 = landingpad { ptr, i32 }
          cleanup
  %74 = extractvalue { ptr, i32 } %73, 0
  store ptr %74, ptr %6, align 8
  %75 = extractvalue { ptr, i32 } %73, 1
  store i32 %75, ptr %7, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #7
  br label %76

76:                                               ; preds = %72, %68
  call void @llvm.lifetime.end.p0(i64 32, ptr %10) #7
  br label %77

77:                                               ; preds = %76, %58, %41
  call void @_ZNSt5queueIcSt5dequeIcSaIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %5) #7
  br label %78

78:                                               ; preds = %77, %30
  call void @llvm.lifetime.end.p0(i64 80, ptr %5) #7
  call void @_ZNSt5queueIcSt5dequeIcSaIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %4) #7
  call void @llvm.lifetime.end.p0(i64 80, ptr %4) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  br label %80

79:                                               ; preds = %21
  call void @llvm.lifetime.end.p0(i64 1, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  ret i32 0

80:                                               ; preds = %78
  %81 = load ptr, ptr %6, align 8
  %82 = load i32, ptr %7, align 4
  %83 = insertvalue { ptr, i32 } poison, ptr %81, 0
  %84 = insertvalue { ptr, i32 } %83, i32 %82, 1
  resume { ptr, i32 } %84
}

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: mustprogress uwtable
declare dso_local void @_ZNSt5queueIcSt5dequeIcSaIcEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #0 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcEERSt13basic_istreamIT_T0_ES6_RS3_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 1 dereferenceable(1)) #4

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5queueIcSt5dequeIcSaIcEEE4pushERKc(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 1 dereferenceable(1)) #0 align 2

; 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)) #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 nounwind uwtable
declare dso_local void @_ZNSt5queueIcSt5dequeIcSaIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #6 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { 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 = { inlinehint 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 #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}


; 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] }
%"class.std::queue" = type { %"class.std::deque" }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<char, std::allocator<char>>::_Deque_impl" }
%"struct.std::_Deque_base<char, std::allocator<char>>::_Deque_impl" = type { %"struct.std::_Deque_base<char, std::allocator<char>>::_Deque_impl_data" }
%"struct.std::_Deque_base<char, std::allocator<char>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator", %"struct.std::_Deque_iterator" }
%"struct.std::_Deque_iterator" = type { ptr, ptr, ptr, ptr }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z13requiredOrderB5cxx11RSt5queueIcSt5dequeIcSaIcEEES4_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 8 dereferenceable(80)) 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 {
  %1 = alloca i32, align 4
  %2 = alloca i8, align 1
  %3 = alloca %"class.std::queue", align 8
  %4 = alloca %"class.std::queue", align 8
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #7
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %2) #7
  %6 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %7 = load ptr, ptr %6, align 8, !tbaa !5
  %8 = getelementptr i8, ptr %7, i64 -24
  %9 = load i64, ptr %8, align 8
  %10 = getelementptr inbounds i8, ptr %6, i64 %9
  %11 = call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %10)
  %12 = load i32, ptr %1, align 4
  %13 = icmp ne i32 %12, 0
  %14 = select i1 %11, i1 %13, i1 false
  br i1 %14, label %.lr.ph19, label %._crit_edge20

.lr.ph19:                                         ; preds = %0, %40
  call void @llvm.lifetime.start.p0(i64 80, ptr nonnull %3) #7
  call void @_ZNSt5queueIcSt5dequeIcSaIcEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  call void @llvm.lifetime.start.p0(i64 80, ptr nonnull %4) #7
  invoke void @_ZNSt5queueIcSt5dequeIcSaIcEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %4)
          to label %.preheader14 unwind label %18

.preheader14:                                     ; preds = %.lr.ph19
  %15 = load i32, ptr %1, align 4, !tbaa !8
  %16 = icmp sgt i32 %15, 0
  br i1 %16, label %.lr.ph, label %._crit_edge

.preheader:                                       ; preds = %22
  %17 = icmp sgt i32 %24, 0
  br i1 %17, label %.lr.ph17, label %._crit_edge

18:                                               ; preds = %.lr.ph19
  %19 = landingpad { ptr, i32 }
          cleanup
  br label %56

.lr.ph:                                           ; preds = %.preheader14, %22
  %.0515 = phi i32 [ %23, %22 ], [ 0, %.preheader14 ]
  %20 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcEERSt13basic_istreamIT_T0_ES6_RS3_(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 1 dereferenceable(1) %2)
          to label %21 unwind label %26

21:                                               ; preds = %.lr.ph
  invoke void @_ZNSt5queueIcSt5dequeIcSaIcEEE4pushERKc(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 1 dereferenceable(1) %2)
          to label %22 unwind label %26

22:                                               ; preds = %21
  %23 = add nuw nsw i32 %.0515, 1
  %24 = load i32, ptr %1, align 4, !tbaa !8
  %25 = icmp slt i32 %23, %24
  br i1 %25, label %.lr.ph, label %.preheader, !llvm.loop !11

26:                                               ; preds = %21, %.lr.ph
  %27 = landingpad { ptr, i32 }
          cleanup
  br label %55

._crit_edge:                                      ; preds = %30, %.preheader14, %.preheader
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %5) #7
  invoke void @_Z13requiredOrderB5cxx11RSt5queueIcSt5dequeIcSaIcEEES4_(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %5, ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 8 dereferenceable(80) %4)
          to label %36 unwind label %50

.lr.ph17:                                         ; preds = %.preheader, %30
  %.016 = phi i32 [ %31, %30 ], [ 0, %.preheader ]
  %28 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcEERSt13basic_istreamIT_T0_ES6_RS3_(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 1 dereferenceable(1) %2)
          to label %29 unwind label %34

29:                                               ; preds = %.lr.ph17
  invoke void @_ZNSt5queueIcSt5dequeIcSaIcEEE4pushERKc(ptr noundef nonnull align 8 dereferenceable(80) %4, ptr noundef nonnull align 1 dereferenceable(1) %2)
          to label %30 unwind label %34

30:                                               ; preds = %29
  %31 = add nuw nsw i32 %.016, 1
  %32 = load i32, ptr %1, align 4, !tbaa !8
  %33 = icmp slt i32 %31, %32
  br i1 %33, label %.lr.ph17, label %._crit_edge, !llvm.loop !13

34:                                               ; preds = %29, %.lr.ph17
  %35 = landingpad { ptr, i32 }
          cleanup
  br label %55

36:                                               ; preds = %._crit_edge
  %37 = 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) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(32) %5)
          to label %38 unwind label %52

38:                                               ; preds = %36
  %39 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %37, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %40 unwind label %52

40:                                               ; preds = %38
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #7
  call void @_ZNSt5queueIcSt5dequeIcSaIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %4) #7
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %4) #7
  call void @_ZNSt5queueIcSt5dequeIcSaIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %3) #7
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %3) #7
  %41 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %42 = load ptr, ptr %41, align 8, !tbaa !5
  %43 = getelementptr i8, ptr %42, i64 -24
  %44 = load i64, ptr %43, align 8
  %45 = getelementptr inbounds i8, ptr %41, i64 %44
  %46 = call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %45)
  %47 = load i32, ptr %1, align 4
  %48 = icmp ne i32 %47, 0
  %49 = select i1 %46, i1 %48, i1 false
  br i1 %49, label %.lr.ph19, label %._crit_edge20, !llvm.loop !14

50:                                               ; preds = %._crit_edge
  %51 = landingpad { ptr, i32 }
          cleanup
  br label %54

52:                                               ; preds = %38, %36
  %53 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #7
  br label %54

54:                                               ; preds = %52, %50
  %.pn = phi { ptr, i32 } [ %53, %52 ], [ %51, %50 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #7
  br label %55

55:                                               ; preds = %54, %34, %26
  %.pn11 = phi { ptr, i32 } [ %27, %26 ], [ %35, %34 ], [ %.pn, %54 ]
  call void @_ZNSt5queueIcSt5dequeIcSaIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %4) #7
  br label %56

56:                                               ; preds = %55, %18
  %.pn11.pn = phi { ptr, i32 } [ %.pn11, %55 ], [ %19, %18 ]
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %4) #7
  call void @_ZNSt5queueIcSt5dequeIcSaIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %3) #7
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %3) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  resume { ptr, i32 } %.pn11.pn

._crit_edge20:                                    ; preds = %40, %0
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  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: mustprogress uwtable
declare dso_local void @_ZNSt5queueIcSt5dequeIcSaIcEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #0 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcEERSt13basic_istreamIT_T0_ES6_RS3_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #4

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5queueIcSt5dequeIcSaIcEEE4pushERKc(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #0 align 2

; 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 #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 nounwind uwtable
declare dso_local void @_ZNSt5queueIcSt5dequeIcSaIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #6 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress 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 = { inlinehint 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 #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}


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