; LLVM IR from eyangch/competitive-programming :: Codeforces/1364 (b)

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

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

; Function Attrs: mustprogress 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 i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::vector", align 8
  %8 = alloca i32, align 4
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  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)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #7
  %20 = 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)
  br label %21

21:                                               ; preds = %154, %0
  %22 = load i32, ptr %2, align 4, !tbaa !8
  %23 = add nsw i32 %22, -1
  store i32 %23, ptr %2, align 4, !tbaa !8
  %24 = icmp ne i32 %22, 0
  br i1 %24, label %25, label %157

25:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #7
  %26 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %27 = load i32, ptr %3, align 4, !tbaa !8
  %28 = zext i32 %27 to i64
  %29 = call ptr @llvm.stacksave.p0()
  store ptr %29, ptr %4, align 8
  %30 = alloca i32, i64 %28, align 16
  store i64 %28, ptr %5, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #7
  store i32 0, ptr %6, align 4, !tbaa !8
  br label %31

31:                                               ; preds = %41, %25
  %32 = load i32, ptr %6, align 4, !tbaa !8
  %33 = load i32, ptr %3, align 4, !tbaa !8
  %34 = icmp slt i32 %32, %33
  br i1 %34, label %36, label %35

35:                                               ; preds = %31
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #7
  br label %44

36:                                               ; preds = %31
  %37 = load i32, ptr %6, align 4, !tbaa !8
  %38 = sext i32 %37 to i64
  %39 = getelementptr inbounds i32, ptr %30, i64 %38
  %40 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %39)
  br label %41

41:                                               ; preds = %36
  %42 = load i32, ptr %6, align 4, !tbaa !8
  %43 = add nsw i32 %42, 1
  store i32 %43, ptr %6, align 4, !tbaa !8
  br label %31, !llvm.loop !11

44:                                               ; preds = %35
  call void @llvm.lifetime.start.p0(i64 24, ptr %7) #7
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #7
  store i32 0, ptr %8, align 4, !tbaa !8
  invoke void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24) %7, ptr noundef nonnull align 4 dereferenceable(4) %8)
          to label %45 unwind label %52

45:                                               ; preds = %44
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #7
  store i32 1, ptr %11, align 4, !tbaa !8
  br label %46

46:                                               ; preds = %107, %45
  %47 = load i32, ptr %11, align 4, !tbaa !8
  %48 = load i32, ptr %3, align 4, !tbaa !8
  %49 = sub nsw i32 %48, 1
  %50 = icmp slt i32 %47, %49
  br i1 %50, label %56, label %51

51:                                               ; preds = %46
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #7
  br label %110

52:                                               ; preds = %44
  %53 = landingpad { ptr, i32 }
          cleanup
  %54 = extractvalue { ptr, i32 } %53, 0
  store ptr %54, ptr %9, align 8
  %55 = extractvalue { ptr, i32 } %53, 1
  store i32 %55, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  br label %156

56:                                               ; preds = %46
  %57 = load i32, ptr %11, align 4, !tbaa !8
  %58 = sext i32 %57 to i64
  %59 = getelementptr inbounds i32, ptr %30, i64 %58
  %60 = load i32, ptr %59, align 4, !tbaa !8
  %61 = load i32, ptr %11, align 4, !tbaa !8
  %62 = sub nsw i32 %61, 1
  %63 = sext i32 %62 to i64
  %64 = getelementptr inbounds i32, ptr %30, i64 %63
  %65 = load i32, ptr %64, align 4, !tbaa !8
  %66 = icmp sgt i32 %60, %65
  br i1 %66, label %67, label %78

67:                                               ; preds = %56
  %68 = load i32, ptr %11, align 4, !tbaa !8
  %69 = sext i32 %68 to i64
  %70 = getelementptr inbounds i32, ptr %30, i64 %69
  %71 = load i32, ptr %70, align 4, !tbaa !8
  %72 = load i32, ptr %11, align 4, !tbaa !8
  %73 = add nsw i32 %72, 1
  %74 = sext i32 %73 to i64
  %75 = getelementptr inbounds i32, ptr %30, i64 %74
  %76 = load i32, ptr %75, align 4, !tbaa !8
  %77 = icmp sgt i32 %71, %76
  br i1 %77, label %100, label %78

78:                                               ; preds = %67, %56
  %79 = load i32, ptr %11, align 4, !tbaa !8
  %80 = sext i32 %79 to i64
  %81 = getelementptr inbounds i32, ptr %30, i64 %80
  %82 = load i32, ptr %81, align 4, !tbaa !8
  %83 = load i32, ptr %11, align 4, !tbaa !8
  %84 = sub nsw i32 %83, 1
  %85 = sext i32 %84 to i64
  %86 = getelementptr inbounds i32, ptr %30, i64 %85
  %87 = load i32, ptr %86, align 4, !tbaa !8
  %88 = icmp slt i32 %82, %87
  br i1 %88, label %89, label %106

89:                                               ; preds = %78
  %90 = load i32, ptr %11, align 4, !tbaa !8
  %91 = sext i32 %90 to i64
  %92 = getelementptr inbounds i32, ptr %30, i64 %91
  %93 = load i32, ptr %92, align 4, !tbaa !8
  %94 = load i32, ptr %11, align 4, !tbaa !8
  %95 = add nsw i32 %94, 1
  %96 = sext i32 %95 to i64
  %97 = getelementptr inbounds i32, ptr %30, i64 %96
  %98 = load i32, ptr %97, align 4, !tbaa !8
  %99 = icmp slt i32 %93, %98
  br i1 %99, label %100, label %106

100:                                              ; preds = %89, %67
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %7, ptr noundef nonnull align 4 dereferenceable(4) %11)
          to label %101 unwind label %102

101:                                              ; preds = %100
  br label %106

102:                                              ; preds = %100
  %103 = landingpad { ptr, i32 }
          cleanup
  %104 = extractvalue { ptr, i32 } %103, 0
  store ptr %104, ptr %9, align 8
  %105 = extractvalue { ptr, i32 } %103, 1
  store i32 %105, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #7
  br label %156

106:                                              ; preds = %101, %89, %78
  br label %107

107:                                              ; preds = %106
  %108 = load i32, ptr %11, align 4, !tbaa !8
  %109 = add nsw i32 %108, 1
  store i32 %109, ptr %11, align 4, !tbaa !8
  br label %46, !llvm.loop !13

110:                                              ; preds = %51
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #7
  %111 = load i32, ptr %3, align 4, !tbaa !8
  %112 = sub nsw i32 %111, 1
  store i32 %112, ptr %12, align 4, !tbaa !8
  invoke void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24) %7, ptr noundef nonnull align 4 dereferenceable(4) %12)
          to label %113 unwind label %125

113:                                              ; preds = %110
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #7
  %114 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %7) #7
  %115 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %114)
          to label %116 unwind label %129

116:                                              ; preds = %113
  %117 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %115, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %118 unwind label %129

118:                                              ; preds = %116
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #7
  store i32 0, ptr %13, align 4, !tbaa !8
  br label %119

119:                                              ; preds = %145, %118
  %120 = load i32, ptr %13, align 4, !tbaa !8
  %121 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %7) #7
  %122 = trunc i64 %121 to i32
  %123 = icmp slt i32 %120, %122
  br i1 %123, label %133, label %124

124:                                              ; preds = %119
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #7
  br label %152

125:                                              ; preds = %110
  %126 = landingpad { ptr, i32 }
          cleanup
  %127 = extractvalue { ptr, i32 } %126, 0
  store ptr %127, ptr %9, align 8
  %128 = extractvalue { ptr, i32 } %126, 1
  store i32 %128, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #7
  br label %156

129:                                              ; preds = %152, %116, %113
  %130 = landingpad { ptr, i32 }
          cleanup
  %131 = extractvalue { ptr, i32 } %130, 0
  store ptr %131, ptr %9, align 8
  %132 = extractvalue { ptr, i32 } %130, 1
  store i32 %132, ptr %10, align 4
  br label %156

133:                                              ; preds = %119
  %134 = load i32, ptr %13, align 4, !tbaa !8
  %135 = sext i32 %134 to i64
  %136 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %135) #7
  %137 = load i32, ptr %136, align 4, !tbaa !8
  %138 = sext i32 %137 to i64
  %139 = getelementptr inbounds i32, ptr %30, i64 %138
  %140 = load i32, ptr %139, align 4, !tbaa !8
  %141 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %140)
          to label %142 unwind label %148

142:                                              ; preds = %133
  %143 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %141, ptr noundef @.str)
          to label %144 unwind label %148

144:                                              ; preds = %142
  br label %145

145:                                              ; preds = %144
  %146 = load i32, ptr %13, align 4, !tbaa !8
  %147 = add nsw i32 %146, 1
  store i32 %147, ptr %13, align 4, !tbaa !8
  br label %119, !llvm.loop !14

148:                                              ; preds = %142, %133
  %149 = landingpad { ptr, i32 }
          cleanup
  %150 = extractvalue { ptr, i32 } %149, 0
  store ptr %150, ptr %9, align 8
  %151 = extractvalue { ptr, i32 } %149, 1
  store i32 %151, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #7
  br label %156

152:                                              ; preds = %124
  %153 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %154 unwind label %129

154:                                              ; preds = %152
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #7
  %155 = load ptr, ptr %4, align 8
  call void @llvm.stackrestore.p0(ptr %155)
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  br label %21, !llvm.loop !15

156:                                              ; preds = %148, %129, %125, %102, %52
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  br label %158

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

158:                                              ; preds = %156
  %159 = load ptr, ptr %9, align 8
  %160 = load i32, ptr %10, align 4
  %161 = insertvalue { ptr, i32 } poison, ptr %159, 0
  %162 = insertvalue { ptr, i32 } %161, i32 %160, 1
  resume { ptr, i32 } %162
}

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

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

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #4

; 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 dso_local void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #5 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #5 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #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) #5 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: 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) #6

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #4

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 = { nocallback nofree nosync nounwind willreturn }
attributes #5 = { 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 uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #7 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = distinct !{!14, !12}
!15 = distinct !{!15, !12}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

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

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #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 i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %8 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %9 = getelementptr i8, ptr %8, i64 -24
  %10 = load i64, ptr %9, align 8
  %11 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %10
  %12 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %11, ptr noundef null)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #7
  %13 = 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)
  %14 = load i32, ptr %1, align 4, !tbaa !8
  %15 = add nsw i32 %14, -1
  store i32 %15, ptr %1, align 4, !tbaa !8
  %.not24 = icmp eq i32 %14, 0
  br i1 %.not24, label %._crit_edge27, label %.lr.ph26

.lr.ph26:                                         ; preds = %0, %87
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #7
  %16 = 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)
  %17 = load i32, ptr %2, align 4, !tbaa !8
  %18 = zext i32 %17 to i64
  %19 = call ptr @llvm.stacksave.p0()
  %20 = alloca i32, i64 %18, align 16
  %21 = load i32, ptr %2, align 4, !tbaa !8
  %22 = icmp sgt i32 %21, 0
  br i1 %22, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %.lr.ph26
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #7
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #7
  store i32 0, ptr %4, align 4, !tbaa !8
  invoke void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr noundef nonnull align 4 dereferenceable(4) %4)
          to label %28 unwind label %32

.lr.ph:                                           ; preds = %.lr.ph26, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %.lr.ph26 ]
  %23 = getelementptr inbounds i32, ptr %20, i64 %indvars.iv
  %24 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %23)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %25 = load i32, ptr %2, align 4, !tbaa !8
  %26 = sext i32 %25 to i64
  %27 = icmp slt i64 %indvars.iv.next, %26
  br i1 %27, label %.lr.ph, label %._crit_edge, !llvm.loop !11

28:                                               ; preds = %._crit_edge
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #7
  store i32 1, ptr %5, align 4, !tbaa !8
  %29 = load i32, ptr %2, align 4, !tbaa !8
  %30 = add nsw i32 %29, -1
  %31 = icmp sgt i32 %29, 2
  br i1 %31, label %.lr.ph19, label %._crit_edge20

._crit_edge20:                                    ; preds = %54, %28
  %.lcssa = phi i32 [ %30, %28 ], [ %58, %54 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #7
  store i32 %.lcssa, ptr %6, align 4, !tbaa !8
  invoke void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr noundef nonnull align 4 dereferenceable(4) %6)
          to label %60 unwind label %69

32:                                               ; preds = %._crit_edge
  %33 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #7
  br label %90

.lr.ph19:                                         ; preds = %28, %54
  %34 = phi i32 [ %55, %54 ], [ %29, %28 ]
  %storemerge17 = phi i32 [ %57, %54 ], [ 1, %28 ]
  %35 = sext i32 %storemerge17 to i64
  %36 = getelementptr inbounds i32, ptr %20, i64 %35
  %37 = load i32, ptr %36, align 4, !tbaa !8
  %38 = getelementptr i8, ptr %36, i64 -4
  %39 = load i32, ptr %38, align 4, !tbaa !8
  %40 = icmp sgt i32 %37, %39
  br i1 %40, label %41, label %45

41:                                               ; preds = %.lr.ph19
  %42 = getelementptr i8, ptr %36, i64 4
  %43 = load i32, ptr %42, align 4, !tbaa !8
  %44 = icmp sgt i32 %37, %43
  br i1 %44, label %51, label %45

45:                                               ; preds = %41, %.lr.ph19
  %46 = icmp slt i32 %37, %39
  br i1 %46, label %47, label %54

47:                                               ; preds = %45
  %48 = getelementptr i8, ptr %36, i64 4
  %49 = load i32, ptr %48, align 4, !tbaa !8
  %50 = icmp slt i32 %37, %49
  br i1 %50, label %51, label %54

51:                                               ; preds = %47, %41
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr noundef nonnull align 4 dereferenceable(4) %5)
          to label %._crit_edge33 unwind label %52

._crit_edge33:                                    ; preds = %51
  %.pre = load i32, ptr %5, align 4, !tbaa !8
  %.pre34 = load i32, ptr %2, align 4, !tbaa !8
  br label %54

52:                                               ; preds = %51
  %53 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #7
  br label %90

54:                                               ; preds = %._crit_edge33, %45, %47
  %55 = phi i32 [ %.pre34, %._crit_edge33 ], [ %34, %45 ], [ %34, %47 ]
  %56 = phi i32 [ %.pre, %._crit_edge33 ], [ %storemerge17, %45 ], [ %storemerge17, %47 ]
  %57 = add nsw i32 %56, 1
  store i32 %57, ptr %5, align 4, !tbaa !8
  %58 = add nsw i32 %55, -1
  %59 = icmp slt i32 %57, %58
  br i1 %59, label %.lr.ph19, label %._crit_edge20, !llvm.loop !13

60:                                               ; preds = %._crit_edge20
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #7
  %61 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  %62 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %61)
          to label %63 unwind label %71

63:                                               ; preds = %60
  %64 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %62, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %.preheader unwind label %71

.preheader:                                       ; preds = %63
  %65 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  %66 = trunc i64 %65 to i32
  %67 = icmp sgt i32 %66, 0
  br i1 %67, label %.lr.ph22, label %._crit_edge23

._crit_edge23:                                    ; preds = %81, %.preheader
  %68 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %87 unwind label %71

69:                                               ; preds = %._crit_edge20
  %70 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #7
  br label %90

71:                                               ; preds = %._crit_edge23, %63, %60
  %72 = landingpad { ptr, i32 }
          cleanup
  br label %90

.lr.ph22:                                         ; preds = %.preheader, %81
  %indvars.iv30 = phi i64 [ %indvars.iv.next31, %81 ], [ 0, %.preheader ]
  %73 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %indvars.iv30) #7
  %74 = load i32, ptr %73, align 4, !tbaa !8
  %75 = sext i32 %74 to i64
  %76 = getelementptr inbounds i32, ptr %20, i64 %75
  %77 = load i32, ptr %76, align 4, !tbaa !8
  %78 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %77)
          to label %79 unwind label %85

79:                                               ; preds = %.lr.ph22
  %80 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %78, ptr noundef nonnull @.str)
          to label %81 unwind label %85

81:                                               ; preds = %79
  %indvars.iv.next31 = add nuw nsw i64 %indvars.iv30, 1
  %82 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  %sext = shl i64 %82, 32
  %83 = ashr exact i64 %sext, 32
  %84 = icmp slt i64 %indvars.iv.next31, %83
  br i1 %84, label %.lr.ph22, label %._crit_edge23, !llvm.loop !14

85:                                               ; preds = %79, %.lr.ph22
  %86 = landingpad { ptr, i32 }
          cleanup
  br label %90

87:                                               ; preds = %._crit_edge23
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #7
  call void @llvm.stackrestore.p0(ptr %19)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #7
  %88 = load i32, ptr %1, align 4, !tbaa !8
  %89 = add nsw i32 %88, -1
  store i32 %89, ptr %1, align 4, !tbaa !8
  %.not = icmp eq i32 %88, 0
  br i1 %.not, label %._crit_edge27, label %.lr.ph26, !llvm.loop !15

90:                                               ; preds = %85, %71, %69, %52, %32
  %.pn = phi { ptr, i32 } [ %53, %52 ], [ %86, %85 ], [ %72, %71 ], [ %70, %69 ], [ %33, %32 ]
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  resume { ptr, i32 } %.pn

._crit_edge27:                                    ; preds = %87, %0
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  ret i32 0
}

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

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

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #4

; 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 dso_local void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #5 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #5 align 2

; 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 #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) 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 #5 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: 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 #6

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #4

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 nocallback nofree nosync nounwind willreturn }
attributes #5 = { 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 uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #7 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = distinct !{!14, !12}
!15 = distinct !{!15, !12}


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