; LLVM IR from ahampriyanshu/algo-ds-101 :: Algorithms/DP/Edit_Distance (Edit_distance)

; 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_ostream" = type { ptr, %"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_istream" = type { ptr, i64, %"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] }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [17 x i8], align 1
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str.1 = external hidden unnamed_addr constant [18 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [25 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 %"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 ptr, align 8
  %11 = alloca i64, align 8
  %12 = alloca i64, align 8
  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(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
          to label %14 unwind label %48

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) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %16 unwind label %48

16:                                               ; preds = %14
  %17 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.1)
          to label %18 unwind label %48

18:                                               ; preds = %16
  %19 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %3)
          to label %20 unwind label %48

20:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #7
  %21 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #7
  %22 = add i64 %21, 1
  %23 = trunc i64 %22 to i32
  store i32 %23, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #7
  %24 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #7
  %25 = add i64 %24, 1
  %26 = trunc i64 %25 to i32
  store i32 %26, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #7
  %27 = load i32, ptr %6, align 4, !tbaa !5
  %28 = zext i32 %27 to i64
  %29 = load i32, ptr %7, align 4, !tbaa !5
  %30 = zext i32 %29 to i64
  %31 = call ptr @llvm.stacksave.p0()
  store ptr %31, ptr %10, align 8
  %32 = mul nuw i64 %28, %30
  %33 = alloca i32, i64 %32, align 16
  store i64 %28, ptr %11, align 8
  store i64 %30, ptr %12, align 8
  store i32 0, ptr %8, align 4, !tbaa !5
  br label %34

34:                                               ; preds = %45, %20
  %35 = load i32, ptr %8, align 4, !tbaa !5
  %36 = load i32, ptr %6, align 4, !tbaa !5
  %37 = icmp slt i32 %35, %36
  br i1 %37, label %38, label %52

38:                                               ; preds = %34
  %39 = load i32, ptr %8, align 4, !tbaa !5
  %40 = load i32, ptr %8, align 4, !tbaa !5
  %41 = sext i32 %40 to i64
  %42 = mul nsw i64 %41, %30
  %43 = getelementptr inbounds i32, ptr %33, i64 %42
  %44 = getelementptr inbounds i32, ptr %43, i64 0
  store i32 %39, ptr %44, align 4, !tbaa !5
  br label %45

45:                                               ; preds = %38
  %46 = load i32, ptr %8, align 4, !tbaa !5
  %47 = add nsw i32 %46, 1
  store i32 %47, ptr %8, align 4, !tbaa !5
  br label %34, !llvm.loop !9

48:                                               ; preds = %18, %16, %14, %0
  %49 = landingpad { ptr, i32 }
          cleanup
  %50 = extractvalue { ptr, i32 } %49, 0
  store ptr %50, ptr %4, align 8
  %51 = extractvalue { ptr, i32 } %49, 1
  store i32 %51, ptr %5, align 4
  br label %179

52:                                               ; preds = %34
  store i32 0, ptr %8, align 4, !tbaa !5
  br label %53

53:                                               ; preds = %64, %52
  %54 = load i32, ptr %8, align 4, !tbaa !5
  %55 = load i32, ptr %7, align 4, !tbaa !5
  %56 = icmp slt i32 %54, %55
  br i1 %56, label %57, label %67

57:                                               ; preds = %53
  %58 = load i32, ptr %8, align 4, !tbaa !5
  %59 = mul nsw i64 0, %30
  %60 = getelementptr inbounds i32, ptr %33, i64 %59
  %61 = load i32, ptr %8, align 4, !tbaa !5
  %62 = sext i32 %61 to i64
  %63 = getelementptr inbounds i32, ptr %60, i64 %62
  store i32 %58, ptr %63, align 4, !tbaa !5
  br label %64

64:                                               ; preds = %57
  %65 = load i32, ptr %8, align 4, !tbaa !5
  %66 = add nsw i32 %65, 1
  store i32 %66, ptr %8, align 4, !tbaa !5
  br label %53, !llvm.loop !11

67:                                               ; preds = %53
  store i32 1, ptr %8, align 4, !tbaa !5
  br label %68

68:                                               ; preds = %159, %67
  %69 = load i32, ptr %8, align 4, !tbaa !5
  %70 = load i32, ptr %6, align 4, !tbaa !5
  %71 = icmp slt i32 %69, %70
  br i1 %71, label %72, label %162

72:                                               ; preds = %68
  store i32 1, ptr %9, align 4, !tbaa !5
  br label %73

73:                                               ; preds = %155, %72
  %74 = load i32, ptr %9, align 4, !tbaa !5
  %75 = load i32, ptr %7, align 4, !tbaa !5
  %76 = icmp slt i32 %74, %75
  br i1 %76, label %77, label %158

77:                                               ; preds = %73
  %78 = load i32, ptr %8, align 4, !tbaa !5
  %79 = sub nsw i32 %78, 1
  %80 = sext i32 %79 to i64
  %81 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %80)
          to label %82 unwind label %111

82:                                               ; preds = %77
  %83 = load i8, ptr %81, align 1, !tbaa !12
  %84 = sext i8 %83 to i32
  %85 = load i32, ptr %9, align 4, !tbaa !5
  %86 = sub nsw i32 %85, 1
  %87 = sext i32 %86 to i64
  %88 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %87)
          to label %89 unwind label %111

89:                                               ; preds = %82
  %90 = load i8, ptr %88, align 1, !tbaa !12
  %91 = sext i8 %90 to i32
  %92 = icmp eq i32 %84, %91
  br i1 %92, label %93, label %115

93:                                               ; preds = %89
  %94 = load i32, ptr %8, align 4, !tbaa !5
  %95 = sub nsw i32 %94, 1
  %96 = sext i32 %95 to i64
  %97 = mul nsw i64 %96, %30
  %98 = getelementptr inbounds i32, ptr %33, i64 %97
  %99 = load i32, ptr %9, align 4, !tbaa !5
  %100 = sub nsw i32 %99, 1
  %101 = sext i32 %100 to i64
  %102 = getelementptr inbounds i32, ptr %98, i64 %101
  %103 = load i32, ptr %102, align 4, !tbaa !5
  %104 = load i32, ptr %8, align 4, !tbaa !5
  %105 = sext i32 %104 to i64
  %106 = mul nsw i64 %105, %30
  %107 = getelementptr inbounds i32, ptr %33, i64 %106
  %108 = load i32, ptr %9, align 4, !tbaa !5
  %109 = sext i32 %108 to i64
  %110 = getelementptr inbounds i32, ptr %107, i64 %109
  store i32 %103, ptr %110, align 4, !tbaa !5
  br label %154

111:                                              ; preds = %164, %162, %133, %115, %82, %77
  %112 = landingpad { ptr, i32 }
          cleanup
  %113 = extractvalue { ptr, i32 } %112, 0
  store ptr %113, ptr %4, align 8
  %114 = extractvalue { ptr, i32 } %112, 1
  store i32 %114, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #7
  br label %179

115:                                              ; preds = %89
  %116 = load i32, ptr %8, align 4, !tbaa !5
  %117 = sub nsw i32 %116, 1
  %118 = sext i32 %117 to i64
  %119 = mul nsw i64 %118, %30
  %120 = getelementptr inbounds i32, ptr %33, i64 %119
  %121 = load i32, ptr %9, align 4, !tbaa !5
  %122 = sext i32 %121 to i64
  %123 = getelementptr inbounds i32, ptr %120, i64 %122
  %124 = load i32, ptr %8, align 4, !tbaa !5
  %125 = sext i32 %124 to i64
  %126 = mul nsw i64 %125, %30
  %127 = getelementptr inbounds i32, ptr %33, i64 %126
  %128 = load i32, ptr %9, align 4, !tbaa !5
  %129 = sub nsw i32 %128, 1
  %130 = sext i32 %129 to i64
  %131 = getelementptr inbounds i32, ptr %127, i64 %130
  %132 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %123, ptr noundef nonnull align 4 dereferenceable(4) %131)
          to label %133 unwind label %111

133:                                              ; preds = %115
  %134 = load i32, ptr %8, align 4, !tbaa !5
  %135 = sub nsw i32 %134, 1
  %136 = sext i32 %135 to i64
  %137 = mul nsw i64 %136, %30
  %138 = getelementptr inbounds i32, ptr %33, i64 %137
  %139 = load i32, ptr %9, align 4, !tbaa !5
  %140 = sub nsw i32 %139, 1
  %141 = sext i32 %140 to i64
  %142 = getelementptr inbounds i32, ptr %138, i64 %141
  %143 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %132, ptr noundef nonnull align 4 dereferenceable(4) %142)
          to label %144 unwind label %111

144:                                              ; preds = %133
  %145 = load i32, ptr %143, align 4, !tbaa !5
  %146 = add nsw i32 %145, 1
  %147 = load i32, ptr %8, align 4, !tbaa !5
  %148 = sext i32 %147 to i64
  %149 = mul nsw i64 %148, %30
  %150 = getelementptr inbounds i32, ptr %33, i64 %149
  %151 = load i32, ptr %9, align 4, !tbaa !5
  %152 = sext i32 %151 to i64
  %153 = getelementptr inbounds i32, ptr %150, i64 %152
  store i32 %146, ptr %153, align 4, !tbaa !5
  br label %154

154:                                              ; preds = %144, %93
  br label %155

155:                                              ; preds = %154
  %156 = load i32, ptr %9, align 4, !tbaa !5
  %157 = add nsw i32 %156, 1
  store i32 %157, ptr %9, align 4, !tbaa !5
  br label %73, !llvm.loop !13

158:                                              ; preds = %73
  br label %159

159:                                              ; preds = %158
  %160 = load i32, ptr %8, align 4, !tbaa !5
  %161 = add nsw i32 %160, 1
  store i32 %161, ptr %8, align 4, !tbaa !5
  br label %68, !llvm.loop !14

162:                                              ; preds = %68
  %163 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.2)
          to label %164 unwind label %111

164:                                              ; preds = %162
  %165 = load i32, ptr %6, align 4, !tbaa !5
  %166 = sub nsw i32 %165, 1
  %167 = sext i32 %166 to i64
  %168 = mul nsw i64 %167, %30
  %169 = getelementptr inbounds i32, ptr %33, i64 %168
  %170 = load i32, ptr %7, align 4, !tbaa !5
  %171 = sub nsw i32 %170, 1
  %172 = sext i32 %171 to i64
  %173 = getelementptr inbounds i32, ptr %169, i64 %172
  %174 = load i32, ptr %173, align 4, !tbaa !5
  %175 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %174)
          to label %176 unwind label %111

176:                                              ; preds = %164
  store i32 0, ptr %1, align 4
  %177 = load ptr, ptr %10, align 8
  call void @llvm.stackrestore.p0(ptr %177)
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  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
  %178 = load i32, ptr %1, align 4
  ret i32 %178

179:                                              ; preds = %111, %48
  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 %180

180:                                              ; preds = %179
  %181 = load ptr, ptr %4, align 8
  %182 = load i32, ptr %5, align 4
  %183 = insertvalue { ptr, i32 } poison, ptr %181, 0
  %184 = insertvalue { ptr, i32 } %183, i32 %182, 1
  resume { ptr, i32 } %184
}

; 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

; 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) #3

declare i32 @__gxx_personality_v0(...)

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)) #4

; 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
declare ptr @llvm.stacksave.p0() #5

; 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)) #6

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #4

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #5

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

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

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 = { 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 #4 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nocallback nofree nosync nounwind willreturn }
attributes #6 = { inlinehint mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #7 = { nounwind }

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"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_ostream" = type { ptr, %"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_istream" = type { ptr, i64, %"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] }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [17 x i8], align 1
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str.1 = external hidden unnamed_addr constant [18 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [25 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 %"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(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str)
          to label %4 unwind label %43

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) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %6 unwind label %43

6:                                                ; preds = %4
  %7 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.1)
          to label %8 unwind label %43

8:                                                ; preds = %6
  %9 = 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 %10 unwind label %43

10:                                               ; preds = %8
  %11 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #7
  %12 = trunc i64 %11 to i32
  %13 = add i32 %12, 1
  %14 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #7
  %15 = trunc i64 %14 to i32
  %16 = add i32 %15, 1
  %17 = zext i32 %13 to i64
  %18 = zext i32 %16 to i64
  %19 = call ptr @llvm.stacksave.p0()
  %20 = mul nuw i64 %18, %17
  %21 = alloca i32, i64 %20, align 16
  %22 = icmp ult i32 %12, 2147483647
  br i1 %22, label %.lr.ph.preheader, label %.preheader45

.lr.ph.preheader:                                 ; preds = %10
  %xtraiter = and i64 %17, 3
  %23 = icmp ult i32 %13, 4
  br i1 %23, label %.preheader45.loopexit.unr-lcssa, label %.lr.ph.preheader.new

.lr.ph.preheader.new:                             ; preds = %.lr.ph.preheader
  %unroll_iter = and i64 %17, 4294967292
  br label %.lr.ph

.preheader45.loopexit.unr-lcssa:                  ; preds = %.lr.ph, %.lr.ph.preheader
  %indvars.iv.unr = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next.3, %.lr.ph ]
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %.preheader45, label %.lr.ph.epil

.lr.ph.epil:                                      ; preds = %.preheader45.loopexit.unr-lcssa, %.lr.ph.epil
  %indvars.iv.epil = phi i64 [ %indvars.iv.next.epil, %.lr.ph.epil ], [ %indvars.iv.unr, %.preheader45.loopexit.unr-lcssa ]
  %epil.iter = phi i64 [ %epil.iter.next, %.lr.ph.epil ], [ 0, %.preheader45.loopexit.unr-lcssa ]
  %24 = mul nuw nsw i64 %indvars.iv.epil, %18
  %25 = getelementptr inbounds i32, ptr %21, i64 %24
  %26 = trunc nuw nsw i64 %indvars.iv.epil to i32
  store i32 %26, ptr %25, align 4, !tbaa !5
  %indvars.iv.next.epil = add nuw nsw i64 %indvars.iv.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 %.preheader45, label %.lr.ph.epil, !llvm.loop !9

.preheader45:                                     ; preds = %.preheader45.loopexit.unr-lcssa, %.lr.ph.epil, %10
  %27 = icmp ult i32 %15, 2147483647
  br i1 %27, label %.lr.ph48.preheader, label %.preheader44

.lr.ph48.preheader:                               ; preds = %.preheader45
  %min.iters.check = icmp ult i32 %16, 8
  br i1 %min.iters.check, label %.lr.ph48.preheader72, label %vector.ph

.lr.ph48.preheader72:                             ; preds = %middle.block, %.lr.ph48.preheader
  %indvars.iv55.ph = phi i64 [ 0, %.lr.ph48.preheader ], [ %n.vec, %middle.block ]
  br label %.lr.ph48

vector.ph:                                        ; preds = %.lr.ph48.preheader
  %n.vec = and i64 %18, 4294967288
  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>
  %28 = getelementptr inbounds i32, ptr %21, i64 %index
  %29 = getelementptr inbounds i8, ptr %28, i64 16
  store <4 x i32> %vec.ind, ptr %28, align 16, !tbaa !5
  store <4 x i32> %step.add, ptr %29, 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>
  %30 = icmp eq i64 %index.next, %n.vec
  br i1 %30, label %middle.block, label %vector.body, !llvm.loop !11

middle.block:                                     ; preds = %vector.body
  %cmp.n = icmp eq i64 %n.vec, %18
  br i1 %cmp.n, label %.preheader44, label %.lr.ph48.preheader72

.lr.ph:                                           ; preds = %.lr.ph, %.lr.ph.preheader.new
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader.new ], [ %indvars.iv.next.3, %.lr.ph ]
  %niter = phi i64 [ 0, %.lr.ph.preheader.new ], [ %niter.next.3, %.lr.ph ]
  %31 = mul nuw nsw i64 %indvars.iv, %18
  %32 = getelementptr inbounds i32, ptr %21, i64 %31
  %33 = trunc nuw nsw i64 %indvars.iv to i32
  store i32 %33, ptr %32, align 16, !tbaa !5
  %indvars.iv.next = or disjoint i64 %indvars.iv, 1
  %34 = mul nuw nsw i64 %indvars.iv.next, %18
  %35 = getelementptr inbounds i32, ptr %21, i64 %34
  %36 = trunc nuw nsw i64 %indvars.iv.next to i32
  store i32 %36, ptr %35, align 4, !tbaa !5
  %indvars.iv.next.1 = or disjoint i64 %indvars.iv, 2
  %37 = mul nuw nsw i64 %indvars.iv.next.1, %18
  %38 = getelementptr inbounds i32, ptr %21, i64 %37
  %39 = trunc nuw nsw i64 %indvars.iv.next.1 to i32
  store i32 %39, ptr %38, align 8, !tbaa !5
  %indvars.iv.next.2 = or disjoint i64 %indvars.iv, 3
  %40 = mul nuw nsw i64 %indvars.iv.next.2, %18
  %41 = getelementptr inbounds i32, ptr %21, i64 %40
  %42 = trunc nuw nsw i64 %indvars.iv.next.2 to i32
  store i32 %42, ptr %41, align 4, !tbaa !5
  %indvars.iv.next.3 = add nuw nsw i64 %indvars.iv, 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 %.preheader45.loopexit.unr-lcssa, label %.lr.ph, !llvm.loop !15

43:                                               ; preds = %8, %6, %4, %0
  %44 = landingpad { ptr, i32 }
          cleanup
  br label %86

.preheader44:                                     ; preds = %.lr.ph48, %middle.block, %.preheader45
  %45 = icmp sgt i32 %13, 1
  %46 = icmp sgt i32 %16, 1
  %or.cond = and i1 %45, %46
  br i1 %or.cond, label %.preheader.us, label %._crit_edge52

.preheader.us:                                    ; preds = %.preheader44, %._crit_edge.us
  %indvars.iv65 = phi i64 [ %indvars.iv.next66, %._crit_edge.us ], [ 1, %.preheader44 ]
  %47 = add nsw i64 %indvars.iv65, -1
  %48 = mul nuw nsw i64 %47, %18
  %49 = getelementptr inbounds i32, ptr %21, i64 %48
  %50 = mul nuw nsw i64 %indvars.iv65, %18
  %51 = getelementptr inbounds i32, ptr %21, i64 %50
  br label %52

52:                                               ; preds = %.preheader.us, %70
  %indvars.iv60 = phi i64 [ 1, %.preheader.us ], [ %indvars.iv.next61, %70 ]
  %53 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %47)
  %54 = load i8, ptr %53, align 1, !tbaa !16
  %55 = add nsw i64 %indvars.iv60, -1
  %56 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %55)
  %57 = load i8, ptr %56, align 1, !tbaa !16
  %58 = icmp eq i8 %54, %57
  br i1 %58, label %67, label %59

59:                                               ; preds = %52
  %60 = getelementptr inbounds i32, ptr %49, i64 %indvars.iv60
  %61 = getelementptr inbounds i32, ptr %51, i64 %55
  %62 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %60, ptr noundef nonnull align 4 dereferenceable(4) %61)
  %63 = getelementptr inbounds i32, ptr %49, i64 %55
  %64 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %62, ptr noundef nonnull align 4 dereferenceable(4) %63)
  %65 = load i32, ptr %64, align 4, !tbaa !5
  %66 = add nsw i32 %65, 1
  br label %70

67:                                               ; preds = %52
  %68 = getelementptr inbounds i32, ptr %49, i64 %55
  %69 = load i32, ptr %68, align 4, !tbaa !5
  br label %70

70:                                               ; preds = %67, %59
  %.sink = phi i32 [ %69, %67 ], [ %66, %59 ]
  %71 = getelementptr inbounds i32, ptr %51, i64 %indvars.iv60
  store i32 %.sink, ptr %71, align 4, !tbaa !5
  %indvars.iv.next61 = add nuw nsw i64 %indvars.iv60, 1
  %exitcond64.not = icmp eq i64 %indvars.iv.next61, %18
  br i1 %exitcond64.not, label %._crit_edge.us, label %52, !llvm.loop !17

._crit_edge.us:                                   ; preds = %70
  %indvars.iv.next66 = add nuw nsw i64 %indvars.iv65, 1
  %exitcond69.not = icmp eq i64 %indvars.iv.next66, %17
  br i1 %exitcond69.not, label %._crit_edge52, label %.preheader.us, !llvm.loop !18

.lr.ph48:                                         ; preds = %.lr.ph48.preheader72, %.lr.ph48
  %indvars.iv55 = phi i64 [ %indvars.iv.next56, %.lr.ph48 ], [ %indvars.iv55.ph, %.lr.ph48.preheader72 ]
  %72 = getelementptr inbounds i32, ptr %21, i64 %indvars.iv55
  %73 = trunc nuw nsw i64 %indvars.iv55 to i32
  store i32 %73, ptr %72, align 4, !tbaa !5
  %indvars.iv.next56 = add nuw nsw i64 %indvars.iv55, 1
  %exitcond59.not = icmp eq i64 %indvars.iv.next56, %18
  br i1 %exitcond59.not, label %.preheader44, label %.lr.ph48, !llvm.loop !19

74:                                               ; preds = %77, %._crit_edge52
  %75 = landingpad { ptr, i32 }
          cleanup
  br label %86

._crit_edge52:                                    ; preds = %._crit_edge.us, %.preheader44
  %76 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.2)
          to label %77 unwind label %74

77:                                               ; preds = %._crit_edge52
  %sext = shl i64 %11, 32
  %78 = ashr exact i64 %sext, 32
  %79 = mul nsw i64 %78, %18
  %80 = getelementptr inbounds i32, ptr %21, i64 %79
  %sext42 = shl i64 %14, 32
  %81 = ashr exact i64 %sext42, 30
  %82 = getelementptr inbounds i8, ptr %80, i64 %81
  %83 = load i32, ptr %82, align 4, !tbaa !5
  %84 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %83)
          to label %85 unwind label %74

85:                                               ; preds = %77
  call void @llvm.stackrestore.p0(ptr %19)
  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

86:                                               ; preds = %74, %43
  %.pn = phi { ptr, i32 } [ %75, %74 ], [ %44, %43 ]
  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

; 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 #3

declare i32 @__gxx_personality_v0(...)

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 #4

; 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
declare ptr @llvm.stacksave.p0() #5

; 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 #6

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #4

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #5

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

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

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 = { 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 #4 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { mustprogress nocallback nofree nosync nounwind willreturn }
attributes #6 = { inlinehint mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #7 = { nounwind }

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.unroll.disable"}
!11 = distinct !{!11, !12, !13, !14}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!"llvm.loop.isvectorized", i32 1}
!14 = !{!"llvm.loop.unroll.runtime.disable"}
!15 = distinct !{!15, !12}
!16 = !{!7, !7, i64 0}
!17 = distinct !{!17, !12}
!18 = distinct !{!18, !12}
!19 = distinct !{!19, !12, !14, !13}


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