; LLVM IR from lzyrapx/Competitive-Programming :: 51Nod (1183（编辑距离）（dp）)

; 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] }

@dp = external dso_local global [1234 x [1234 x i32]], align 16
@_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 %"class.std::__cxx11::basic_string", align 8
  %3 = alloca %"class.std::__cxx11::basic_string", align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 32, ptr %2) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #7
  call void @llvm.lifetime.start.p0(i64 32, ptr %3) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #7
  %13 = 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) %2)
          to label %14 unwind label %26

14:                                               ; preds = %0
  %15 = 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) %13, ptr noundef nonnull align 8 dereferenceable(32) %3)
          to label %16 unwind label %26

16:                                               ; preds = %14
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #7
  %17 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #7
  %18 = trunc i64 %17 to i32
  store i32 %18, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #7
  %19 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #7
  %20 = trunc i64 %19 to i32
  store i32 %20, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #7
  store i32 0, ptr %8, align 4, !tbaa !5
  br label %21

21:                                               ; preds = %35, %16
  %22 = load i32, ptr %8, align 4, !tbaa !5
  %23 = load i32, ptr %6, align 4, !tbaa !5
  %24 = icmp sle i32 %22, %23
  br i1 %24, label %30, label %25

25:                                               ; preds = %21
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  br label %38

26:                                               ; preds = %14, %0
  %27 = landingpad { ptr, i32 }
          cleanup
  %28 = extractvalue { ptr, i32 } %27, 0
  store ptr %28, ptr %4, align 8
  %29 = extractvalue { ptr, i32 } %27, 1
  store i32 %29, ptr %5, align 4
  br label %162

30:                                               ; preds = %21
  %31 = load i32, ptr %8, align 4, !tbaa !5
  %32 = load i32, ptr %8, align 4, !tbaa !5
  %33 = sext i32 %32 to i64
  %34 = getelementptr inbounds [1234 x i32], ptr @dp, i64 0, i64 %33
  store i32 %31, ptr %34, align 4, !tbaa !5
  br label %35

35:                                               ; preds = %30
  %36 = load i32, ptr %8, align 4, !tbaa !5
  %37 = add nsw i32 %36, 1
  store i32 %37, ptr %8, align 4, !tbaa !5
  br label %21, !llvm.loop !9

38:                                               ; preds = %25
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #7
  store i32 0, ptr %9, align 4, !tbaa !5
  br label %39

39:                                               ; preds = %50, %38
  %40 = load i32, ptr %9, align 4, !tbaa !5
  %41 = load i32, ptr %7, align 4, !tbaa !5
  %42 = icmp sle i32 %40, %41
  br i1 %42, label %44, label %43

43:                                               ; preds = %39
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #7
  br label %53

44:                                               ; preds = %39
  %45 = load i32, ptr %9, align 4, !tbaa !5
  %46 = load i32, ptr %9, align 4, !tbaa !5
  %47 = sext i32 %46 to i64
  %48 = getelementptr inbounds [1234 x [1234 x i32]], ptr @dp, i64 0, i64 %47
  %49 = getelementptr inbounds [1234 x i32], ptr %48, i64 0, i64 0
  store i32 %45, ptr %49, align 8, !tbaa !5
  br label %50

50:                                               ; preds = %44
  %51 = load i32, ptr %9, align 4, !tbaa !5
  %52 = add nsw i32 %51, 1
  store i32 %52, ptr %9, align 4, !tbaa !5
  br label %39, !llvm.loop !11

53:                                               ; preds = %43
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #7
  store i32 1, ptr %10, align 4, !tbaa !5
  br label %54

54:                                               ; preds = %141, %53
  %55 = load i32, ptr %10, align 4, !tbaa !5
  %56 = load i32, ptr %6, align 4, !tbaa !5
  %57 = icmp sle i32 %55, %56
  br i1 %57, label %59, label %58

58:                                               ; preds = %54
  store i32 8, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #7
  br label %144

59:                                               ; preds = %54
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #7
  store i32 1, ptr %12, align 4, !tbaa !5
  br label %60

60:                                               ; preds = %137, %59
  %61 = load i32, ptr %12, align 4, !tbaa !5
  %62 = load i32, ptr %7, align 4, !tbaa !5
  %63 = icmp sle i32 %61, %62
  br i1 %63, label %65, label %64

64:                                               ; preds = %60
  store i32 11, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #7
  br label %140

65:                                               ; preds = %60
  %66 = load i32, ptr %10, align 4, !tbaa !5
  %67 = sub nsw i32 %66, 1
  %68 = sext i32 %67 to i64
  %69 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %68)
          to label %70 unwind label %97

70:                                               ; preds = %65
  %71 = load i8, ptr %69, align 1, !tbaa !12
  %72 = sext i8 %71 to i32
  %73 = load i32, ptr %12, align 4, !tbaa !5
  %74 = sub nsw i32 %73, 1
  %75 = sext i32 %74 to i64
  %76 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %75)
          to label %77 unwind label %97

77:                                               ; preds = %70
  %78 = load i8, ptr %76, align 1, !tbaa !12
  %79 = sext i8 %78 to i32
  %80 = icmp eq i32 %72, %79
  br i1 %80, label %81, label %101

81:                                               ; preds = %77
  %82 = load i32, ptr %10, align 4, !tbaa !5
  %83 = sub nsw i32 %82, 1
  %84 = sext i32 %83 to i64
  %85 = getelementptr inbounds [1234 x [1234 x i32]], ptr @dp, i64 0, i64 %84
  %86 = load i32, ptr %12, align 4, !tbaa !5
  %87 = sub nsw i32 %86, 1
  %88 = sext i32 %87 to i64
  %89 = getelementptr inbounds [1234 x i32], ptr %85, i64 0, i64 %88
  %90 = load i32, ptr %89, align 4, !tbaa !5
  %91 = load i32, ptr %10, align 4, !tbaa !5
  %92 = sext i32 %91 to i64
  %93 = getelementptr inbounds [1234 x [1234 x i32]], ptr @dp, i64 0, i64 %92
  %94 = load i32, ptr %12, align 4, !tbaa !5
  %95 = sext i32 %94 to i64
  %96 = getelementptr inbounds [1234 x i32], ptr %93, i64 0, i64 %95
  store i32 %90, ptr %96, align 4, !tbaa !5
  br label %136

97:                                               ; preds = %117, %101, %70, %65
  %98 = landingpad { ptr, i32 }
          cleanup
  %99 = extractvalue { ptr, i32 } %98, 0
  store ptr %99, ptr %4, align 8
  %100 = extractvalue { ptr, i32 } %98, 1
  store i32 %100, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #7
  br label %161

101:                                              ; preds = %77
  %102 = load i32, ptr %10, align 4, !tbaa !5
  %103 = sub nsw i32 %102, 1
  %104 = sext i32 %103 to i64
  %105 = getelementptr inbounds [1234 x [1234 x i32]], ptr @dp, i64 0, i64 %104
  %106 = load i32, ptr %12, align 4, !tbaa !5
  %107 = sext i32 %106 to i64
  %108 = getelementptr inbounds [1234 x i32], ptr %105, i64 0, i64 %107
  %109 = load i32, ptr %10, align 4, !tbaa !5
  %110 = sext i32 %109 to i64
  %111 = getelementptr inbounds [1234 x [1234 x i32]], ptr @dp, i64 0, i64 %110
  %112 = load i32, ptr %12, align 4, !tbaa !5
  %113 = sub nsw i32 %112, 1
  %114 = sext i32 %113 to i64
  %115 = getelementptr inbounds [1234 x i32], ptr %111, i64 0, i64 %114
  %116 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %108, ptr noundef nonnull align 4 dereferenceable(4) %115)
          to label %117 unwind label %97

117:                                              ; preds = %101
  %118 = load i32, ptr %10, align 4, !tbaa !5
  %119 = sub nsw i32 %118, 1
  %120 = sext i32 %119 to i64
  %121 = getelementptr inbounds [1234 x [1234 x i32]], ptr @dp, i64 0, i64 %120
  %122 = load i32, ptr %12, align 4, !tbaa !5
  %123 = sub nsw i32 %122, 1
  %124 = sext i32 %123 to i64
  %125 = getelementptr inbounds [1234 x i32], ptr %121, i64 0, i64 %124
  %126 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %116, ptr noundef nonnull align 4 dereferenceable(4) %125)
          to label %127 unwind label %97

127:                                              ; preds = %117
  %128 = load i32, ptr %126, align 4, !tbaa !5
  %129 = add nsw i32 %128, 1
  %130 = load i32, ptr %10, align 4, !tbaa !5
  %131 = sext i32 %130 to i64
  %132 = getelementptr inbounds [1234 x [1234 x i32]], ptr @dp, i64 0, i64 %131
  %133 = load i32, ptr %12, align 4, !tbaa !5
  %134 = sext i32 %133 to i64
  %135 = getelementptr inbounds [1234 x i32], ptr %132, i64 0, i64 %134
  store i32 %129, ptr %135, align 4, !tbaa !5
  br label %136

136:                                              ; preds = %127, %81
  br label %137

137:                                              ; preds = %136
  %138 = load i32, ptr %12, align 4, !tbaa !5
  %139 = add nsw i32 %138, 1
  store i32 %139, ptr %12, align 4, !tbaa !5
  br label %60, !llvm.loop !13

140:                                              ; preds = %64
  br label %141

141:                                              ; preds = %140
  %142 = load i32, ptr %10, align 4, !tbaa !5
  %143 = add nsw i32 %142, 1
  store i32 %143, ptr %10, align 4, !tbaa !5
  br label %54, !llvm.loop !14

144:                                              ; preds = %58
  %145 = load i32, ptr %6, align 4, !tbaa !5
  %146 = sext i32 %145 to i64
  %147 = getelementptr inbounds [1234 x [1234 x i32]], ptr @dp, i64 0, i64 %146
  %148 = load i32, ptr %7, align 4, !tbaa !5
  %149 = sext i32 %148 to i64
  %150 = getelementptr inbounds [1234 x i32], ptr %147, i64 0, i64 %149
  %151 = load i32, ptr %150, align 4, !tbaa !5
  %152 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %151)
          to label %153 unwind label %157

153:                                              ; preds = %144
  %154 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %152, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %155 unwind label %157

155:                                              ; preds = %153
  store i32 0, ptr %1, align 4
  store i32 1, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #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 %3) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #7
  %156 = load i32, ptr %1, align 4
  ret i32 %156

157:                                              ; preds = %153, %144
  %158 = landingpad { ptr, i32 }
          cleanup
  %159 = extractvalue { ptr, i32 } %158, 0
  store ptr %159, ptr %4, align 8
  %160 = extractvalue { ptr, i32 } %158, 1
  store i32 %160, ptr %5, align 4
  br label %161

161:                                              ; preds = %157, %97
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #7
  br label %162

162:                                              ; preds = %161, %26
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %3) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #7
  br label %163

163:                                              ; preds = %162
  %164 = load ptr, ptr %4, align 8
  %165 = load i32, ptr %5, align 4
  %166 = insertvalue { ptr, i32 } poison, ptr %164, 0
  %167 = insertvalue { ptr, i32 } %166, i32 %165, 1
  resume { ptr, i32 } %167
}

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

; 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)) #3

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; 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 noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #4

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #3

; 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: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) 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 = { 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 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { inlinehint mustprogress 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = !{!7, !7, i64 0}
!13 = distinct !{!13, !10}
!14 = distinct !{!14, !10}


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

%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }

@dp = external dso_local global [1234 x [1234 x i32]], align 16
@_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 %"class.std::__cxx11::basic_string", align 8
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %1) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #7
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %2) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #7
  %3 = 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) %1)
          to label %4 unwind label %18

4:                                                ; preds = %0
  %5 = 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) %3, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %6 unwind label %18

6:                                                ; preds = %4
  %7 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #7
  %8 = trunc i64 %7 to i32
  %9 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #7
  %10 = trunc i64 %9 to i32
  %.not48 = icmp slt i32 %8, 0
  br i1 %.not48, label %.preheader47, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %6
  %11 = add nuw nsw i64 %7, 1
  %wide.trip.count = and i64 %11, 4294967295
  %min.iters.check = icmp ult i64 %wide.trip.count, 8
  br i1 %min.iters.check, label %.lr.ph.preheader77, label %vector.ph

.lr.ph.preheader77:                               ; preds = %middle.block, %.lr.ph.preheader
  %indvars.iv.ph = phi i64 [ 0, %.lr.ph.preheader ], [ %n.vec, %middle.block ]
  br label %.lr.ph

vector.ph:                                        ; preds = %.lr.ph.preheader
  %n.mod.vf = and i64 %11, 7
  %n.vec = sub nsw i64 %wide.trip.count, %n.mod.vf
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %vec.ind = phi <4 x i32> [ <i32 0, i32 1, i32 2, i32 3>, %vector.ph ], [ %vec.ind.next, %vector.body ]
  %step.add = add <4 x i32> %vec.ind, <i32 4, i32 4, i32 4, i32 4>
  %12 = getelementptr inbounds [1234 x i32], ptr @dp, i64 0, i64 %index
  %13 = getelementptr inbounds i8, ptr %12, i64 16
  store <4 x i32> %vec.ind, ptr %12, align 16, !tbaa !5
  store <4 x i32> %step.add, ptr %13, align 16, !tbaa !5
  %index.next = add nuw i64 %index, 8
  %vec.ind.next = add <4 x i32> %vec.ind, <i32 8, i32 8, i32 8, i32 8>
  %14 = icmp eq i64 %index.next, %n.vec
  br i1 %14, label %middle.block, label %vector.body, !llvm.loop !9

middle.block:                                     ; preds = %vector.body
  %cmp.n = icmp eq i64 %n.mod.vf, 0
  br i1 %cmp.n, label %.preheader47, label %.lr.ph.preheader77

.preheader47:                                     ; preds = %.lr.ph, %middle.block, %6
  %.not4150 = icmp slt i32 %10, 0
  br i1 %.not4150, label %.preheader46, label %.lr.ph52.preheader

.lr.ph52.preheader:                               ; preds = %.preheader47
  %15 = add nuw nsw i64 %9, 1
  %wide.trip.count64 = and i64 %15, 4294967295
  %16 = add nsw i64 %wide.trip.count64, -1
  %xtraiter = and i64 %15, 3
  %17 = icmp ult i64 %16, 3
  br i1 %17, label %.preheader46.loopexit.unr-lcssa, label %.lr.ph52.preheader.new

.lr.ph52.preheader.new:                           ; preds = %.lr.ph52.preheader
  %unroll_iter = sub nsw i64 %wide.trip.count64, %xtraiter
  br label %.lr.ph52

18:                                               ; preds = %4, %0
  %19 = landingpad { ptr, i32 }
          cleanup
  br label %65

.lr.ph:                                           ; preds = %.lr.ph.preheader77, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ %indvars.iv.ph, %.lr.ph.preheader77 ]
  %20 = getelementptr inbounds [1234 x i32], ptr @dp, i64 0, i64 %indvars.iv
  %21 = trunc nuw nsw i64 %indvars.iv to i32
  store i32 %21, ptr %20, align 4, !tbaa !5
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %.preheader47, label %.lr.ph, !llvm.loop !13

.preheader46.loopexit.unr-lcssa:                  ; preds = %.lr.ph52, %.lr.ph52.preheader
  %indvars.iv61.unr = phi i64 [ 0, %.lr.ph52.preheader ], [ %indvars.iv.next62.3, %.lr.ph52 ]
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %.preheader46, label %.lr.ph52.epil

.lr.ph52.epil:                                    ; preds = %.preheader46.loopexit.unr-lcssa, %.lr.ph52.epil
  %indvars.iv61.epil = phi i64 [ %indvars.iv.next62.epil, %.lr.ph52.epil ], [ %indvars.iv61.unr, %.preheader46.loopexit.unr-lcssa ]
  %epil.iter = phi i64 [ %epil.iter.next, %.lr.ph52.epil ], [ 0, %.preheader46.loopexit.unr-lcssa ]
  %22 = getelementptr inbounds [1234 x [1234 x i32]], ptr @dp, i64 0, i64 %indvars.iv61.epil
  %23 = trunc nuw nsw i64 %indvars.iv61.epil to i32
  store i32 %23, ptr %22, align 8, !tbaa !5
  %indvars.iv.next62.epil = add nuw nsw i64 %indvars.iv61.epil, 1
  %epil.iter.next = add i64 %epil.iter, 1
  %epil.iter.cmp.not = icmp eq i64 %epil.iter.next, %xtraiter
  br i1 %epil.iter.cmp.not, label %.preheader46, label %.lr.ph52.epil, !llvm.loop !14

.preheader46:                                     ; preds = %.preheader46.loopexit.unr-lcssa, %.lr.ph52.epil, %.preheader47
  %.not4256 = icmp slt i32 %8, 1
  %.not4553 = icmp slt i32 %10, 1
  %or.cond = or i1 %.not4256, %.not4553
  br i1 %or.cond, label %._crit_edge58, label %.preheader.preheader

.preheader.preheader:                             ; preds = %.preheader46
  %24 = add nuw nsw i64 %9, 1
  %25 = add nuw nsw i64 %7, 1
  %wide.trip.count74 = and i64 %25, 4294967295
  %wide.trip.count69 = and i64 %24, 4294967295
  br label %.preheader

.lr.ph52:                                         ; preds = %.lr.ph52, %.lr.ph52.preheader.new
  %indvars.iv61 = phi i64 [ 0, %.lr.ph52.preheader.new ], [ %indvars.iv.next62.3, %.lr.ph52 ]
  %niter = phi i64 [ 0, %.lr.ph52.preheader.new ], [ %niter.next.3, %.lr.ph52 ]
  %26 = getelementptr inbounds [1234 x [1234 x i32]], ptr @dp, i64 0, i64 %indvars.iv61
  %27 = trunc nuw nsw i64 %indvars.iv61 to i32
  store i32 %27, ptr %26, align 16, !tbaa !5
  %indvars.iv.next62 = or disjoint i64 %indvars.iv61, 1
  %28 = getelementptr inbounds [1234 x [1234 x i32]], ptr @dp, i64 0, i64 %indvars.iv.next62
  %29 = trunc nuw nsw i64 %indvars.iv.next62 to i32
  store i32 %29, ptr %28, align 8, !tbaa !5
  %indvars.iv.next62.1 = or disjoint i64 %indvars.iv61, 2
  %30 = getelementptr inbounds [1234 x [1234 x i32]], ptr @dp, i64 0, i64 %indvars.iv.next62.1
  %31 = trunc nuw nsw i64 %indvars.iv.next62.1 to i32
  store i32 %31, ptr %30, align 16, !tbaa !5
  %indvars.iv.next62.2 = or disjoint i64 %indvars.iv61, 3
  %32 = getelementptr inbounds [1234 x [1234 x i32]], ptr @dp, i64 0, i64 %indvars.iv.next62.2
  %33 = trunc nuw nsw i64 %indvars.iv.next62.2 to i32
  store i32 %33, ptr %32, align 8, !tbaa !5
  %indvars.iv.next62.3 = add nuw nsw i64 %indvars.iv61, 4
  %niter.next.3 = add i64 %niter, 4
  %niter.ncmp.3 = icmp eq i64 %niter.next.3, %unroll_iter
  br i1 %niter.ncmp.3, label %.preheader46.loopexit.unr-lcssa, label %.lr.ph52, !llvm.loop !16

.preheader:                                       ; preds = %.preheader.preheader, %._crit_edge
  %indvars.iv71 = phi i64 [ 1, %.preheader.preheader ], [ %indvars.iv.next72, %._crit_edge ]
  %34 = add nsw i64 %indvars.iv71, -1
  br label %40

._crit_edge58:                                    ; preds = %._crit_edge, %.preheader46
  %sext = shl i64 %7, 32
  %35 = ashr exact i64 %sext, 32
  %sext43 = shl i64 %9, 32
  %36 = ashr exact i64 %sext43, 32
  %37 = getelementptr inbounds [1234 x [1234 x i32]], ptr @dp, i64 0, i64 %35, i64 %36
  %38 = load i32, ptr %37, align 4, !tbaa !5
  %39 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %38)
          to label %60 unwind label %63

._crit_edge:                                      ; preds = %58
  %indvars.iv.next72 = add nuw nsw i64 %indvars.iv71, 1
  %exitcond75.not = icmp eq i64 %indvars.iv.next72, %wide.trip.count74
  br i1 %exitcond75.not, label %._crit_edge58, label %.preheader, !llvm.loop !17

40:                                               ; preds = %.preheader, %58
  %indvars.iv66 = phi i64 [ 1, %.preheader ], [ %indvars.iv.next67, %58 ]
  %41 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %34)
  %42 = load i8, ptr %41, align 1, !tbaa !18
  %43 = add nsw i64 %indvars.iv66, -1
  %44 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %43)
  %45 = load i8, ptr %44, align 1, !tbaa !18
  %46 = icmp eq i8 %42, %45
  br i1 %46, label %47, label %50

47:                                               ; preds = %40
  %48 = getelementptr inbounds [1234 x [1234 x i32]], ptr @dp, i64 0, i64 %34, i64 %43
  %49 = load i32, ptr %48, align 4, !tbaa !5
  br label %58

50:                                               ; preds = %40
  %51 = getelementptr inbounds [1234 x [1234 x i32]], ptr @dp, i64 0, i64 %34, i64 %indvars.iv66
  %52 = getelementptr inbounds [1234 x [1234 x i32]], ptr @dp, i64 0, i64 %indvars.iv71, i64 %43
  %53 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %51, ptr noundef nonnull align 4 dereferenceable(4) %52)
  %54 = getelementptr inbounds [1234 x [1234 x i32]], ptr @dp, i64 0, i64 %34, i64 %43
  %55 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %53, ptr noundef nonnull align 4 dereferenceable(4) %54)
  %56 = load i32, ptr %55, align 4, !tbaa !5
  %57 = add nsw i32 %56, 1
  br label %58

58:                                               ; preds = %47, %50
  %.sink = phi i32 [ %49, %47 ], [ %57, %50 ]
  %59 = getelementptr inbounds [1234 x [1234 x i32]], ptr @dp, i64 0, i64 %indvars.iv71, i64 %indvars.iv66
  store i32 %.sink, ptr %59, align 4
  %indvars.iv.next67 = add nuw nsw i64 %indvars.iv66, 1
  %exitcond70.not = icmp eq i64 %indvars.iv.next67, %wide.trip.count69
  br i1 %exitcond70.not, label %._crit_edge, label %40, !llvm.loop !19

60:                                               ; preds = %._crit_edge58
  %61 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %39, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %62 unwind label %63

62:                                               ; preds = %60
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #7
  ret i32 0

63:                                               ; preds = %60, %._crit_edge58
  %64 = landingpad { ptr, i32 }
          cleanup
  br label %65

65:                                               ; preds = %63, %18
  %.pn = phi { ptr, i32 } [ %64, %63 ], [ %19, %18 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #7
  resume { ptr, i32 } %.pn
}

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

; 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 #3

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; 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 noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #4

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #3

; 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: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) 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 = { 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 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { inlinehint mustprogress 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10, !11, !12}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!"llvm.loop.isvectorized", i32 1}
!12 = !{!"llvm.loop.unroll.runtime.disable"}
!13 = distinct !{!13, !10, !12, !11}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.unroll.disable"}
!16 = distinct !{!16, !10}
!17 = distinct !{!17, !10}
!18 = !{!7, !7, i64 0}
!19 = distinct !{!19, !10}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopLoadEliminationPass,LoopRotatePass,LoopSimplifyCFGPass,LoopSimplifyPass,LoopUnrollPass,LoopVectorizePass,MergedLoadStoreMotionPass,SROAPass,SimplifyCFGPass