; LLVM IR from xirc/cp-algorithm :: atcoder/abc201/B (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::pair<int, std::__cxx11::basic_string<char>>, std::allocator<std::pair<int, std::__cxx11::basic_string<char>>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, std::__cxx11::basic_string<char>>, std::allocator<std::pair<int, std::__cxx11::basic_string<char>>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, std::__cxx11::basic_string<char>>, std::allocator<std::pair<int, std::__cxx11::basic_string<char>>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, std::__cxx11::basic_string<char>>, std::allocator<std::pair<int, std::__cxx11::basic_string<char>>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"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] }
%"struct.std::pair" = type { i32, %"class.std::__cxx11::basic_string" }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::__cxx11::basic_string", align 8
  %8 = alloca i32, align 4
  %9 = alloca %"struct.std::pair", align 8
  %10 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %11 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %12 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %13 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  store i32 0, ptr %1, align 4
  %14 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %15 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %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 ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %18, ptr noundef null)
  %20 = load ptr, ptr @_ZSt4cout, align 8, !tbaa !5
  %21 = getelementptr i8, ptr %20, i64 -24
  %22 = load i64, ptr %21, align 8
  %23 = getelementptr inbounds i8, ptr @_ZSt4cout, i64 %22
  %24 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %23, ptr noundef null)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #7
  call void @llvm.lifetime.start.p0(i64 24, ptr %3) #7
  call void @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  %25 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
          to label %26 unwind label %32

26:                                               ; preds = %0
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #7
  store i32 0, ptr %6, align 4, !tbaa !8
  br label %27

27:                                               ; preds = %43, %26
  %28 = load i32, ptr %6, align 4, !tbaa !8
  %29 = load i32, ptr %2, align 4, !tbaa !8
  %30 = icmp slt i32 %28, %29
  br i1 %30, label %36, label %31

31:                                               ; preds = %27
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #7
  br label %60

32:                                               ; preds = %82, %78, %69, %60, %0
  %33 = landingpad { ptr, i32 }
          cleanup
  %34 = extractvalue { ptr, i32 } %33, 0
  store ptr %34, ptr %4, align 8
  %35 = extractvalue { ptr, i32 } %33, 1
  store i32 %35, ptr %5, align 4
  br label %86

36:                                               ; preds = %27
  call void @llvm.lifetime.start.p0(i64 32, ptr %7) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #7
  %37 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %7)
          to label %38 unwind label %46

38:                                               ; preds = %36
  %39 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %37, ptr noundef nonnull align 4 dereferenceable(4) %8)
          to label %40 unwind label %46

40:                                               ; preds = %38
  call void @llvm.lifetime.start.p0(i64 40, ptr %9) #7
  invoke void @_ZNSt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IRiRS5_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairISB_SC_EEEbE4typeELb1EEEOSB_OSC_(ptr noundef nonnull align 8 dereferenceable(40) %9, ptr noundef nonnull align 4 dereferenceable(4) %8, ptr noundef nonnull align 8 dereferenceable(32) %7)
          to label %41 unwind label %50

41:                                               ; preds = %40
  invoke void @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EE9push_backEOS7_(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr noundef nonnull align 8 dereferenceable(40) %9)
          to label %42 unwind label %54

42:                                               ; preds = %41
  call void @_ZNSt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %9) #7
  call void @llvm.lifetime.end.p0(i64 40, ptr %9) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %7) #7
  br label %43

43:                                               ; preds = %42
  %44 = load i32, ptr %6, align 4, !tbaa !8
  %45 = add nsw i32 %44, 1
  store i32 %45, ptr %6, align 4, !tbaa !8
  br label %27, !llvm.loop !11

46:                                               ; preds = %38, %36
  %47 = landingpad { ptr, i32 }
          cleanup
  %48 = extractvalue { ptr, i32 } %47, 0
  store ptr %48, ptr %4, align 8
  %49 = extractvalue { ptr, i32 } %47, 1
  store i32 %49, ptr %5, align 4
  br label %59

50:                                               ; preds = %40
  %51 = landingpad { ptr, i32 }
          cleanup
  %52 = extractvalue { ptr, i32 } %51, 0
  store ptr %52, ptr %4, align 8
  %53 = extractvalue { ptr, i32 } %51, 1
  store i32 %53, ptr %5, align 4
  br label %58

54:                                               ; preds = %41
  %55 = landingpad { ptr, i32 }
          cleanup
  %56 = extractvalue { ptr, i32 } %55, 0
  store ptr %56, ptr %4, align 8
  %57 = extractvalue { ptr, i32 } %55, 1
  store i32 %57, ptr %5, align 4
  call void @_ZNSt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %9) #7
  br label %58

58:                                               ; preds = %54, %50
  call void @llvm.lifetime.end.p0(i64 40, ptr %9) #7
  br label %59

59:                                               ; preds = %58, %46
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %7) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #7
  br label %86

60:                                               ; preds = %31
  %61 = call ptr @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  %62 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %10, i32 0, i32 0
  store ptr %61, ptr %62, align 8
  %63 = call ptr @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  %64 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  store ptr %63, ptr %64, align 8
  %65 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %10, i32 0, i32 0
  %66 = load ptr, ptr %65, align 8
  %67 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  %68 = load ptr, ptr %67, align 8
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESt6vectorIS9_SaIS9_EEEEEvT_SF_(ptr %66, ptr %68)
          to label %69 unwind label %32

69:                                               ; preds = %60
  %70 = call ptr @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  %71 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %12, i32 0, i32 0
  store ptr %70, ptr %71, align 8
  %72 = call ptr @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  %73 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %13, i32 0, i32 0
  store ptr %72, ptr %73, align 8
  %74 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %12, i32 0, i32 0
  %75 = load ptr, ptr %74, align 8
  %76 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %13, i32 0, i32 0
  %77 = load ptr, ptr %76, align 8
  invoke void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPSt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESt6vectorIS9_SaIS9_EEEEEvT_SF_(ptr %75, ptr %77)
          to label %78 unwind label %32

78:                                               ; preds = %69
  %79 = call noundef nonnull align 8 dereferenceable(40) ptr @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef 1) #7
  %80 = getelementptr inbounds %"struct.std::pair", ptr %79, i32 0, i32 1
  %81 = 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) %80)
          to label %82 unwind label %32

82:                                               ; preds = %78
  %83 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %81, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %84 unwind label %32

84:                                               ; preds = %82
  store i32 0, ptr %1, align 4
  call void @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  %85 = load i32, ptr %1, align 4
  ret i32 %85

86:                                               ; preds = %59, %32
  call void @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  br label %87

87:                                               ; preds = %86
  %88 = load ptr, ptr %4, align 8
  %89 = load i32, ptr %5, align 4
  %90 = insertvalue { ptr, i32 } poison, ptr %88, 0
  %91 = insertvalue { ptr, i32 } %90, i32 %89, 1
  resume { ptr, i32 } %91
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #1

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) #2 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EE9push_backEOS7_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(40)) #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IRiRS5_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairISB_SC_EEEbE4typeELb1EEEOSB_OSC_(ptr noundef nonnull align 8 dereferenceable(40), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #4 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEED2Ev(ptr noundef nonnull align 8 dereferenceable(40)) unnamed_addr #5 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; 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: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESt6vectorIS9_SaIS9_EEEEEvT_SF_(ptr, ptr) #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPSt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESt6vectorIS9_SaIS9_EEEEEvT_SF_(ptr, ptr) #6

; 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)) #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(40) ptr @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 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) #4 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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

attributes #0 = { 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 #1 = { "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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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 = { 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 #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"}


; 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::pair<int, std::__cxx11::basic_string<char>>, std::allocator<std::pair<int, std::__cxx11::basic_string<char>>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, std::__cxx11::basic_string<char>>, std::allocator<std::pair<int, std::__cxx11::basic_string<char>>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, std::__cxx11::basic_string<char>>, std::allocator<std::pair<int, std::__cxx11::basic_string<char>>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, std::__cxx11::basic_string<char>>, std::allocator<std::pair<int, std::__cxx11::basic_string<char>>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"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] }
%"struct.std::pair" = type { i32, %"class.std::__cxx11::basic_string" }

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.std::vector", align 8
  %3 = alloca %"class.std::__cxx11::basic_string", align 8
  %4 = alloca i32, align 4
  %5 = alloca %"struct.std::pair", align 8
  %6 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %7 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %8 = getelementptr i8, ptr %7, i64 -24
  %9 = load i64, ptr %8, align 8
  %10 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %9
  %11 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %10, ptr noundef null)
  %12 = load ptr, ptr @_ZSt4cout, align 8, !tbaa !5
  %13 = getelementptr i8, ptr %12, i64 -24
  %14 = load i64, ptr %13, align 8
  %15 = getelementptr inbounds i8, ptr @_ZSt4cout, i64 %14
  %16 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %15, ptr noundef null)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #7
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %2) #7
  call void @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #7
  %17 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
          to label %.preheader unwind label %22

.preheader:                                       ; preds = %0
  %18 = load i32, ptr %1, align 4, !tbaa !8
  %19 = icmp sgt i32 %18, 0
  br i1 %19, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %29, %.preheader
  %20 = call ptr @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #7
  %21 = call ptr @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #7
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESt6vectorIS9_SaIS9_EEEEEvT_SF_(ptr %20, ptr %21)
          to label %41 unwind label %22

22:                                               ; preds = %48, %44, %41, %._crit_edge, %0
  %23 = landingpad { ptr, i32 }
          cleanup
  br label %51

.lr.ph:                                           ; preds = %.preheader, %29
  %.01014 = phi i32 [ %30, %29 ], [ 0, %.preheader ]
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %3) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #7
  %24 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %3)
          to label %25 unwind label %33

25:                                               ; preds = %.lr.ph
  %26 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %24, ptr noundef nonnull align 4 dereferenceable(4) %4)
          to label %27 unwind label %33

27:                                               ; preds = %25
  call void @llvm.lifetime.start.p0(i64 40, ptr nonnull %5) #7
  invoke void @_ZNSt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IRiRS5_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairISB_SC_EEEbE4typeELb1EEEOSB_OSC_(ptr noundef nonnull align 8 dereferenceable(40) %5, ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 8 dereferenceable(32) %3)
          to label %28 unwind label %35

28:                                               ; preds = %27
  invoke void @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EE9push_backEOS7_(ptr noundef nonnull align 8 dereferenceable(24) %2, ptr noundef nonnull align 8 dereferenceable(40) %5)
          to label %29 unwind label %37

29:                                               ; preds = %28
  call void @_ZNSt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %5) #7
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %5) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #7
  %30 = add nuw nsw i32 %.01014, 1
  %31 = load i32, ptr %1, align 4, !tbaa !8
  %32 = icmp slt i32 %30, %31
  br i1 %32, label %.lr.ph, label %._crit_edge, !llvm.loop !11

33:                                               ; preds = %25, %.lr.ph
  %34 = landingpad { ptr, i32 }
          cleanup
  br label %40

35:                                               ; preds = %27
  %36 = landingpad { ptr, i32 }
          cleanup
  br label %39

37:                                               ; preds = %28
  %38 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %5) #7
  br label %39

39:                                               ; preds = %37, %35
  %.pn = phi { ptr, i32 } [ %38, %37 ], [ %36, %35 ]
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %5) #7
  br label %40

40:                                               ; preds = %39, %33
  %.pn.pn = phi { ptr, i32 } [ %.pn, %39 ], [ %34, %33 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #7
  br label %51

41:                                               ; preds = %._crit_edge
  %42 = call ptr @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #7
  %43 = call ptr @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #7
  invoke void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPSt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESt6vectorIS9_SaIS9_EEEEEvT_SF_(ptr %42, ptr %43)
          to label %44 unwind label %22

44:                                               ; preds = %41
  %45 = call noundef nonnull align 8 dereferenceable(40) ptr @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef 1) #7
  %46 = getelementptr inbounds i8, ptr %45, i64 8
  %47 = 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) %46)
          to label %48 unwind label %22

48:                                               ; preds = %44
  %49 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %47, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %50 unwind label %22

50:                                               ; preds = %48
  call void @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  ret i32 0

51:                                               ; preds = %40, %22
  %.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn, %40 ], [ %23, %22 ]
  call void @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  resume { ptr, i32 } %.pn.pn.pn
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

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 #1

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EE9push_backEOS7_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(40)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2IRiRS5_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairISB_SC_EEEbE4typeELb1EEEOSB_OSC_(ptr noundef nonnull align 8 dereferenceable(40), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #4 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEED2Ev(ptr noundef nonnull align 8 dereferenceable(40)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; 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: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESt6vectorIS9_SaIS9_EEEEEvT_SF_(ptr, ptr) local_unnamed_addr #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPSt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESt6vectorIS9_SaIS9_EEEEEvT_SF_(ptr, ptr) local_unnamed_addr #6

; 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 #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(40) ptr @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 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 #4 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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEESaIS7_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

attributes #0 = { 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 #1 = { "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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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 = { 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 #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"}


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