; LLVM IR from TrainingByPackt/CPP-Data-Structures-and-Algorithm-Design-Principles :: Lesson8/Activity19 (Activity 19)

; 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::__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] }

; 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) #0 align 2

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

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

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #3

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z15LCS_MemoizationNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_iiRSt6vectorIS5_IiSaIiEESaIS7_EE(ptr noundef %0, ptr noundef %1, i32 noundef %2, i32 noundef %3, ptr noundef nonnull align 8 dereferenceable(24) %4) #2 personality ptr @__gxx_personality_v0 {
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca ptr, align 8
  %12 = alloca %"class.std::__cxx11::basic_string", align 8
  %13 = alloca %"class.std::__cxx11::basic_string", align 8
  %14 = alloca ptr, align 8
  %15 = alloca i32, align 4
  %16 = alloca i32, align 4
  %17 = alloca %"class.std::__cxx11::basic_string", align 8
  %18 = alloca %"class.std::__cxx11::basic_string", align 8
  %19 = alloca i32, align 4
  %20 = alloca %"class.std::__cxx11::basic_string", align 8
  %21 = alloca %"class.std::__cxx11::basic_string", align 8
  store ptr %0, ptr %7, align 8, !tbaa !5
  store ptr %1, ptr %8, align 8, !tbaa !5
  store i32 %2, ptr %9, align 4, !tbaa !9
  store i32 %3, ptr %10, align 4, !tbaa !9
  store ptr %4, ptr %11, align 8, !tbaa !5
  %22 = load i32, ptr %9, align 4, !tbaa !9
  %23 = icmp eq i32 %22, 0
  br i1 %23, label %27, label %24

24:                                               ; preds = %5
  %25 = load i32, ptr %10, align 4, !tbaa !9
  %26 = icmp eq i32 %25, 0
  br i1 %26, label %27, label %28

27:                                               ; preds = %24, %5
  store i32 0, ptr %6, align 4
  br label %165

28:                                               ; preds = %24
  %29 = load ptr, ptr %11, align 8, !tbaa !5
  %30 = load i32, ptr %9, align 4, !tbaa !9
  %31 = sub nsw i32 %30, 1
  %32 = sext i32 %31 to i64
  %33 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %29, i64 noundef %32) #4
  %34 = load i32, ptr %10, align 4, !tbaa !9
  %35 = sub nsw i32 %34, 1
  %36 = sext i32 %35 to i64
  %37 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %33, i64 noundef %36) #4
  %38 = load i32, ptr %37, align 4, !tbaa !9
  %39 = icmp ne i32 %38, -1
  br i1 %39, label %40, label %51

40:                                               ; preds = %28
  %41 = load ptr, ptr %11, align 8, !tbaa !5
  %42 = load i32, ptr %9, align 4, !tbaa !9
  %43 = sub nsw i32 %42, 1
  %44 = sext i32 %43 to i64
  %45 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %41, i64 noundef %44) #4
  %46 = load i32, ptr %10, align 4, !tbaa !9
  %47 = sub nsw i32 %46, 1
  %48 = sext i32 %47 to i64
  %49 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %45, i64 noundef %48) #4
  %50 = load i32, ptr %49, align 4, !tbaa !9
  store i32 %50, ptr %6, align 4
  br label %165

51:                                               ; preds = %28
  %52 = load i32, ptr %9, align 4, !tbaa !9
  %53 = sub nsw i32 %52, 1
  %54 = sext i32 %53 to i64
  %55 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %54)
  %56 = load i8, ptr %55, align 1, !tbaa !11
  %57 = sext i8 %56 to i32
  %58 = load i32, ptr %10, align 4, !tbaa !9
  %59 = sub nsw i32 %58, 1
  %60 = sext i32 %59 to i64
  %61 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %60)
  %62 = load i8, ptr %61, align 1, !tbaa !11
  %63 = sext i8 %62 to i32
  %64 = icmp eq i32 %57, %63
  br i1 %64, label %65, label %103

65:                                               ; preds = %51
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %12, ptr noundef nonnull align 8 dereferenceable(32) %0)
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %13, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %66 unwind label %94

66:                                               ; preds = %65
  %67 = load i32, ptr %9, align 4, !tbaa !9
  %68 = sub nsw i32 %67, 1
  %69 = load i32, ptr %10, align 4, !tbaa !9
  %70 = sub nsw i32 %69, 1
  %71 = load ptr, ptr %11, align 8, !tbaa !5
  %72 = invoke noundef i32 @_Z15LCS_MemoizationNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_iiRSt6vectorIS5_IiSaIiEESaIS7_EE(ptr noundef %12, ptr noundef %13, i32 noundef %68, i32 noundef %70, ptr noundef nonnull align 8 dereferenceable(24) %71)
          to label %73 unwind label %98

73:                                               ; preds = %66
  %74 = add nsw i32 1, %72
  %75 = load ptr, ptr %11, align 8, !tbaa !5
  %76 = load i32, ptr %9, align 4, !tbaa !9
  %77 = sub nsw i32 %76, 1
  %78 = sext i32 %77 to i64
  %79 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %75, i64 noundef %78) #4
  %80 = load i32, ptr %10, align 4, !tbaa !9
  %81 = sub nsw i32 %80, 1
  %82 = sext i32 %81 to i64
  %83 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %79, i64 noundef %82) #4
  store i32 %74, ptr %83, align 4, !tbaa !9
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %13) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #4
  %84 = load ptr, ptr %11, align 8, !tbaa !5
  %85 = load i32, ptr %9, align 4, !tbaa !9
  %86 = sub nsw i32 %85, 1
  %87 = sext i32 %86 to i64
  %88 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %84, i64 noundef %87) #4
  %89 = load i32, ptr %10, align 4, !tbaa !9
  %90 = sub nsw i32 %89, 1
  %91 = sext i32 %90 to i64
  %92 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %88, i64 noundef %91) #4
  %93 = load i32, ptr %92, align 4, !tbaa !9
  store i32 %93, ptr %6, align 4
  br label %165

94:                                               ; preds = %65
  %95 = landingpad { ptr, i32 }
          cleanup
  %96 = extractvalue { ptr, i32 } %95, 0
  store ptr %96, ptr %14, align 8
  %97 = extractvalue { ptr, i32 } %95, 1
  store i32 %97, ptr %15, align 4
  br label %102

98:                                               ; preds = %66
  %99 = landingpad { ptr, i32 }
          cleanup
  %100 = extractvalue { ptr, i32 } %99, 0
  store ptr %100, ptr %14, align 8
  %101 = extractvalue { ptr, i32 } %99, 1
  store i32 %101, ptr %15, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %13) #4
  br label %102

102:                                              ; preds = %98, %94
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #4
  br label %167

103:                                              ; preds = %51
  call void @llvm.lifetime.start.p0(i64 4, ptr %16) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %17, ptr noundef nonnull align 8 dereferenceable(32) %0)
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %18, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %104 unwind label %141

104:                                              ; preds = %103
  %105 = load i32, ptr %9, align 4, !tbaa !9
  %106 = sub nsw i32 %105, 1
  %107 = load i32, ptr %10, align 4, !tbaa !9
  %108 = load ptr, ptr %11, align 8, !tbaa !5
  %109 = invoke noundef i32 @_Z15LCS_MemoizationNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_iiRSt6vectorIS5_IiSaIiEESaIS7_EE(ptr noundef %17, ptr noundef %18, i32 noundef %106, i32 noundef %107, ptr noundef nonnull align 8 dereferenceable(24) %108)
          to label %110 unwind label %145

110:                                              ; preds = %104
  store i32 %109, ptr %16, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %19) #4
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %20, ptr noundef nonnull align 8 dereferenceable(32) %0)
          to label %111 unwind label %149

111:                                              ; preds = %110
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %21, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %112 unwind label %153

112:                                              ; preds = %111
  %113 = load i32, ptr %9, align 4, !tbaa !9
  %114 = load i32, ptr %10, align 4, !tbaa !9
  %115 = sub nsw i32 %114, 1
  %116 = load ptr, ptr %11, align 8, !tbaa !5
  %117 = invoke noundef i32 @_Z15LCS_MemoizationNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_iiRSt6vectorIS5_IiSaIiEESaIS7_EE(ptr noundef %20, ptr noundef %21, i32 noundef %113, i32 noundef %115, ptr noundef nonnull align 8 dereferenceable(24) %116)
          to label %118 unwind label %157

118:                                              ; preds = %112
  store i32 %117, ptr %19, align 4, !tbaa !9
  %119 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %16, ptr noundef nonnull align 4 dereferenceable(4) %19)
          to label %120 unwind label %157

120:                                              ; preds = %118
  %121 = load i32, ptr %119, align 4, !tbaa !9
  %122 = load ptr, ptr %11, align 8, !tbaa !5
  %123 = load i32, ptr %9, align 4, !tbaa !9
  %124 = sub nsw i32 %123, 1
  %125 = sext i32 %124 to i64
  %126 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %122, i64 noundef %125) #4
  %127 = load i32, ptr %10, align 4, !tbaa !9
  %128 = sub nsw i32 %127, 1
  %129 = sext i32 %128 to i64
  %130 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %126, i64 noundef %129) #4
  store i32 %121, ptr %130, align 4, !tbaa !9
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %21) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %20) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %18) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %17) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #4
  %131 = load ptr, ptr %11, align 8, !tbaa !5
  %132 = load i32, ptr %9, align 4, !tbaa !9
  %133 = sub nsw i32 %132, 1
  %134 = sext i32 %133 to i64
  %135 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %131, i64 noundef %134) #4
  %136 = load i32, ptr %10, align 4, !tbaa !9
  %137 = sub nsw i32 %136, 1
  %138 = sext i32 %137 to i64
  %139 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %135, i64 noundef %138) #4
  %140 = load i32, ptr %139, align 4, !tbaa !9
  store i32 %140, ptr %6, align 4
  br label %165

141:                                              ; preds = %103
  %142 = landingpad { ptr, i32 }
          cleanup
  %143 = extractvalue { ptr, i32 } %142, 0
  store ptr %143, ptr %14, align 8
  %144 = extractvalue { ptr, i32 } %142, 1
  store i32 %144, ptr %15, align 4
  br label %164

145:                                              ; preds = %104
  %146 = landingpad { ptr, i32 }
          cleanup
  %147 = extractvalue { ptr, i32 } %146, 0
  store ptr %147, ptr %14, align 8
  %148 = extractvalue { ptr, i32 } %146, 1
  store i32 %148, ptr %15, align 4
  br label %163

149:                                              ; preds = %110
  %150 = landingpad { ptr, i32 }
          cleanup
  %151 = extractvalue { ptr, i32 } %150, 0
  store ptr %151, ptr %14, align 8
  %152 = extractvalue { ptr, i32 } %150, 1
  store i32 %152, ptr %15, align 4
  br label %162

153:                                              ; preds = %111
  %154 = landingpad { ptr, i32 }
          cleanup
  %155 = extractvalue { ptr, i32 } %154, 0
  store ptr %155, ptr %14, align 8
  %156 = extractvalue { ptr, i32 } %154, 1
  store i32 %156, ptr %15, align 4
  br label %161

157:                                              ; preds = %118, %112
  %158 = landingpad { ptr, i32 }
          cleanup
  %159 = extractvalue { ptr, i32 } %158, 0
  store ptr %159, ptr %14, align 8
  %160 = extractvalue { ptr, i32 } %158, 1
  store i32 %160, ptr %15, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %21) #4
  br label %161

161:                                              ; preds = %157, %153
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %20) #4
  br label %162

162:                                              ; preds = %161, %149
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #4
  br label %163

163:                                              ; preds = %162, %145
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %18) #4
  br label %164

164:                                              ; preds = %163, %141
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %17) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #4
  br label %167

165:                                              ; preds = %120, %73, %40, %27
  %166 = load i32, ptr %6, align 4
  ret i32 %166

167:                                              ; preds = %164, %102
  %168 = load ptr, ptr %14, align 8
  %169 = load i32, ptr %15, align 4
  %170 = insertvalue { ptr, i32 } poison, ptr %168, 0
  %171 = insertvalue { ptr, i32 } %170, i32 %169, 1
  resume { ptr, i32 } %171
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #0 align 2

; 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) #0 align 2

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { 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 #4 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!7, !7, i64 0}


; 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::__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] }

; 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 #0 align 2

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

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z15LCS_MemoizationNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_iiRSt6vectorIS5_IiSaIiEESaIS7_EE(ptr noundef %0, ptr noundef %1, i32 noundef %2, i32 noundef %3, ptr noundef nonnull align 8 dereferenceable(24) %4) local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %6 = alloca %"class.std::__cxx11::basic_string", align 8
  %7 = alloca %"class.std::__cxx11::basic_string", align 8
  %8 = alloca i32, align 4
  %9 = alloca %"class.std::__cxx11::basic_string", align 8
  %10 = alloca %"class.std::__cxx11::basic_string", align 8
  %11 = alloca i32, align 4
  %12 = alloca %"class.std::__cxx11::basic_string", align 8
  %13 = alloca %"class.std::__cxx11::basic_string", align 8
  %14 = icmp eq i32 %2, 0
  %15 = icmp eq i32 %3, 0
  %or.cond = or i1 %14, %15
  br i1 %or.cond, label %78, label %16

16:                                               ; preds = %5
  %17 = add nsw i32 %2, -1
  %18 = sext i32 %17 to i64
  %19 = tail call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %18) #4
  %20 = add nsw i32 %3, -1
  %21 = sext i32 %20 to i64
  %22 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %19, i64 noundef %21) #4
  %23 = load i32, ptr %22, align 4, !tbaa !5
  %.not = icmp eq i32 %23, -1
  br i1 %.not, label %28, label %24

24:                                               ; preds = %16
  %25 = tail call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %18) #4
  %26 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %25, i64 noundef %21) #4
  %27 = load i32, ptr %26, align 4, !tbaa !5
  br label %78

28:                                               ; preds = %16
  %29 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %18)
  %30 = load i8, ptr %29, align 1, !tbaa !9
  %31 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %21)
  %32 = load i8, ptr %31, align 1, !tbaa !9
  %33 = icmp eq i8 %30, %32
  br i1 %33, label %34, label %49

34:                                               ; preds = %28
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %6, ptr noundef nonnull align 8 dereferenceable(32) %0)
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %7, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %35 unwind label %44

35:                                               ; preds = %34
  %36 = invoke noundef i32 @_Z15LCS_MemoizationNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_iiRSt6vectorIS5_IiSaIiEESaIS7_EE(ptr noundef nonnull %6, ptr noundef nonnull %7, i32 noundef %17, i32 noundef %20, ptr noundef nonnull align 8 dereferenceable(24) %4)
          to label %37 unwind label %46

37:                                               ; preds = %35
  %38 = add nsw i32 %36, 1
  %39 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %18) #4
  %40 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %39, i64 noundef %21) #4
  store i32 %38, ptr %40, align 4, !tbaa !5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #4
  %41 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %18) #4
  %42 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %41, i64 noundef %21) #4
  %43 = load i32, ptr %42, align 4, !tbaa !5
  br label %78

44:                                               ; preds = %34
  %45 = landingpad { ptr, i32 }
          cleanup
  br label %48

46:                                               ; preds = %35
  %47 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #4
  br label %48

48:                                               ; preds = %46, %44
  %.pn47 = phi { ptr, i32 } [ %47, %46 ], [ %45, %44 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #4
  br label %79

49:                                               ; preds = %28
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %8) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %9, ptr noundef nonnull align 8 dereferenceable(32) %0)
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %10, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %50 unwind label %64

50:                                               ; preds = %49
  %51 = invoke noundef i32 @_Z15LCS_MemoizationNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_iiRSt6vectorIS5_IiSaIiEESaIS7_EE(ptr noundef nonnull %9, ptr noundef nonnull %10, i32 noundef %17, i32 noundef %3, ptr noundef nonnull align 8 dereferenceable(24) %4)
          to label %52 unwind label %66

52:                                               ; preds = %50
  store i32 %51, ptr %8, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %11) #4
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %12, ptr noundef nonnull align 8 dereferenceable(32) %0)
          to label %53 unwind label %68

53:                                               ; preds = %52
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %13, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %54 unwind label %70

54:                                               ; preds = %53
  %55 = invoke noundef i32 @_Z15LCS_MemoizationNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_iiRSt6vectorIS5_IiSaIiEESaIS7_EE(ptr noundef nonnull %12, ptr noundef nonnull %13, i32 noundef %2, i32 noundef %20, ptr noundef nonnull align 8 dereferenceable(24) %4)
          to label %56 unwind label %72

56:                                               ; preds = %54
  store i32 %55, ptr %11, align 4, !tbaa !5
  %57 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %8, ptr noundef nonnull align 4 dereferenceable(4) %11)
  %58 = load i32, ptr %57, align 4, !tbaa !5
  %59 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %18) #4
  %60 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %59, i64 noundef %21) #4
  store i32 %58, ptr %60, align 4, !tbaa !5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %13) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %11) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #4
  %61 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %18) #4
  %62 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %61, i64 noundef %21) #4
  %63 = load i32, ptr %62, align 4, !tbaa !5
  br label %78

64:                                               ; preds = %49
  %65 = landingpad { ptr, i32 }
          cleanup
  br label %77

66:                                               ; preds = %50
  %67 = landingpad { ptr, i32 }
          cleanup
  br label %76

68:                                               ; preds = %52
  %69 = landingpad { ptr, i32 }
          cleanup
  br label %75

70:                                               ; preds = %53
  %71 = landingpad { ptr, i32 }
          cleanup
  br label %74

72:                                               ; preds = %54
  %73 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %13) #4
  br label %74

74:                                               ; preds = %72, %70
  %.pn = phi { ptr, i32 } [ %73, %72 ], [ %71, %70 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #4
  br label %75

75:                                               ; preds = %74, %68
  %.pn.pn = phi { ptr, i32 } [ %.pn, %74 ], [ %69, %68 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %11) #4
  br label %76

76:                                               ; preds = %75, %66
  %.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn, %75 ], [ %67, %66 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #4
  br label %77

77:                                               ; preds = %76, %64
  %.pn.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn.pn, %76 ], [ %65, %64 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #4
  br label %79

78:                                               ; preds = %5, %56, %37, %24
  %.040 = phi i32 [ %27, %24 ], [ %43, %37 ], [ %63, %56 ], [ 0, %5 ]
  ret i32 %.040

79:                                               ; preds = %77, %48
  %.pn47.pn = phi { ptr, i32 } [ %.pn47, %48 ], [ %.pn.pn.pn.pn, %77 ]
  resume { ptr, i32 } %.pn47.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; 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 #0 align 2

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { 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 #4 = { 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 = !{!7, !7, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,SimplifyCFGPass,TailCallElimPass