; LLVM IR from kazunetakahashi/atcoder :: 2019/0216_ABC118 (D4)

; 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] }
%"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" }

@_ZL4baseB5cxx11 = external hidden global %"class.std::__cxx11::basic_string", align 8
@X = external dso_local global [10 x i64], align 16
@_Z2DPB5cxx11 = external dso_local global [10010 x %"class.std::__cxx11::basic_string"], align 16
@N = external dso_local global i32, align 4
@M = external dso_local global i32, align 4
@A = external dso_local global [10 x i64], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str.3 = external hidden unnamed_addr constant [1 x i8], align 1
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z8char_maxRNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZSteqIcEN9__gnu_cxx11__enable_ifIXsr9__is_charIT_EE7__valueEbE6__typeERKNSt7__cxx1112basic_stringIS2_St11char_traitsIS2_ESaIS2_EEESC_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #3

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #4 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::__cxx11::basic_string", align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %10 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @N)
  %11 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %10, ptr noundef nonnull align 4 dereferenceable(4) @M)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #7
  store i32 0, ptr %2, align 4, !tbaa !5
  br label %12

12:                                               ; preds = %22, %0
  %13 = load i32, ptr %2, align 4, !tbaa !5
  %14 = load i32, ptr @M, align 4, !tbaa !5
  %15 = icmp slt i32 %13, %14
  br i1 %15, label %17, label %16

16:                                               ; preds = %12
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  br label %25

17:                                               ; preds = %12
  %18 = load i32, ptr %2, align 4, !tbaa !5
  %19 = sext i32 %18 to i64
  %20 = getelementptr inbounds [10 x i64], ptr @A, i64 0, i64 %19
  %21 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %20)
  br label %22

22:                                               ; preds = %17
  %23 = load i32, ptr %2, align 4, !tbaa !5
  %24 = add nsw i32 %23, 1
  store i32 %24, ptr %2, align 4, !tbaa !5
  br label %12, !llvm.loop !9

25:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #7
  store i32 0, ptr %3, align 4, !tbaa !5
  br label %26

26:                                               ; preds = %35, %25
  %27 = load i32, ptr %3, align 4, !tbaa !5
  %28 = icmp slt i32 %27, 10010
  br i1 %28, label %30, label %29

29:                                               ; preds = %26
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  br label %38

30:                                               ; preds = %26
  %31 = load i32, ptr %3, align 4, !tbaa !5
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds [10010 x %"class.std::__cxx11::basic_string"], ptr @_Z2DPB5cxx11, i64 0, i64 %32
  %34 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %33, ptr noundef nonnull align 8 dereferenceable(32) @_ZL4baseB5cxx11)
  br label %35

35:                                               ; preds = %30
  %36 = load i32, ptr %3, align 4, !tbaa !5
  %37 = add nsw i32 %36, 1
  store i32 %37, ptr %3, align 4, !tbaa !5
  br label %26, !llvm.loop !11

38:                                               ; preds = %29
  %39 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEPKc(ptr noundef nonnull align 8 dereferenceable(32) @_Z2DPB5cxx11, ptr noundef @.str.3)
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #7
  store i32 0, ptr %4, align 4, !tbaa !5
  br label %40

40:                                               ; preds = %86, %38
  %41 = load i32, ptr %4, align 4, !tbaa !5
  %42 = load i32, ptr @N, align 4, !tbaa !5
  %43 = icmp sle i32 %41, %42
  br i1 %43, label %45, label %44

44:                                               ; preds = %40
  store i32 8, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #7
  br label %89

45:                                               ; preds = %40
  %46 = load i32, ptr %4, align 4, !tbaa !5
  %47 = sext i32 %46 to i64
  %48 = getelementptr inbounds [10010 x %"class.std::__cxx11::basic_string"], ptr @_Z2DPB5cxx11, i64 0, i64 %47
  %49 = call noundef zeroext i1 @_ZSteqIcEN9__gnu_cxx11__enable_ifIXsr9__is_charIT_EE7__valueEbE6__typeERKNSt7__cxx1112basic_stringIS2_St11char_traitsIS2_ESaIS2_EEESC_(ptr noundef nonnull align 8 dereferenceable(32) %48, ptr noundef nonnull align 8 dereferenceable(32) @_ZL4baseB5cxx11) #7
  br i1 %49, label %50, label %51

50:                                               ; preds = %45
  br label %86

51:                                               ; preds = %45
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #7
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %52

52:                                               ; preds = %78, %51
  %53 = load i32, ptr %6, align 4, !tbaa !5
  %54 = load i32, ptr @M, align 4, !tbaa !5
  %55 = icmp slt i32 %53, %54
  br i1 %55, label %57, label %56

56:                                               ; preds = %52
  store i32 11, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #7
  br label %85

57:                                               ; preds = %52
  %58 = load i32, ptr %4, align 4, !tbaa !5
  %59 = sext i32 %58 to i64
  %60 = load i32, ptr %6, align 4, !tbaa !5
  %61 = sext i32 %60 to i64
  %62 = getelementptr inbounds [10 x i64], ptr @A, i64 0, i64 %61
  %63 = load i64, ptr %62, align 8, !tbaa !12
  %64 = getelementptr inbounds [10 x i64], ptr @X, i64 0, i64 %63
  %65 = load i64, ptr %64, align 8, !tbaa !12
  %66 = add nsw i64 %59, %65
  %67 = getelementptr inbounds [10010 x %"class.std::__cxx11::basic_string"], ptr @_Z2DPB5cxx11, i64 0, i64 %66
  %68 = load i32, ptr %4, align 4, !tbaa !5
  %69 = sext i32 %68 to i64
  %70 = getelementptr inbounds [10010 x %"class.std::__cxx11::basic_string"], ptr @_Z2DPB5cxx11, i64 0, i64 %69
  %71 = load i32, ptr %6, align 4, !tbaa !5
  %72 = sext i32 %71 to i64
  %73 = getelementptr inbounds [10 x i64], ptr @A, i64 0, i64 %72
  %74 = load i64, ptr %73, align 8, !tbaa !12
  %75 = add nsw i64 48, %74
  %76 = trunc i64 %75 to i8
  call void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_S5_(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %7, ptr noundef nonnull align 8 dereferenceable(32) %70, i8 noundef signext %76)
  invoke void @_Z8char_maxRNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_(ptr noundef nonnull align 8 dereferenceable(32) %67, ptr noundef %7)
          to label %77 unwind label %81

77:                                               ; preds = %57
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #7
  br label %78

78:                                               ; preds = %77
  %79 = load i32, ptr %6, align 4, !tbaa !5
  %80 = add nsw i32 %79, 1
  store i32 %80, ptr %6, align 4, !tbaa !5
  br label %52, !llvm.loop !14

81:                                               ; preds = %57
  %82 = landingpad { ptr, i32 }
          cleanup
  %83 = extractvalue { ptr, i32 } %82, 0
  store ptr %83, ptr %8, align 8
  %84 = extractvalue { ptr, i32 } %82, 1
  store i32 %84, ptr %9, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #7
  br label %96

85:                                               ; preds = %56
  br label %86

86:                                               ; preds = %85, %50
  %87 = load i32, ptr %4, align 4, !tbaa !5
  %88 = add nsw i32 %87, 1
  store i32 %88, ptr %4, align 4, !tbaa !5
  br label %40, !llvm.loop !15

89:                                               ; preds = %44
  %90 = load i32, ptr @N, align 4, !tbaa !5
  %91 = sext i32 %90 to i64
  %92 = getelementptr inbounds [10010 x %"class.std::__cxx11::basic_string"], ptr @_Z2DPB5cxx11, i64 0, i64 %91
  %93 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(32) %92)
  %94 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %93, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  %95 = load i32, ptr %1, align 4
  ret i32 %95

96:                                               ; preds = %81
  %97 = load ptr, ptr %8, align 8
  %98 = load i32, ptr %9, align 4
  %99 = insertvalue { ptr, i32 } poison, ptr %97, 0
  %100 = insertvalue { ptr, i32 } %99, i32 %98, 1
  resume { ptr, i32 } %100
}

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #5

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEPKc(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_S5_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), i8 noundef signext) #6

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) #6

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

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { 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 #5 = { "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 = !{!13, !13, i64 0}
!13 = !{!"long long", !7, i64 0}
!14 = distinct !{!14, !10}
!15 = distinct !{!15, !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::__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] }
%"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" }

@_ZL4baseB5cxx11 = external hidden global %"class.std::__cxx11::basic_string", align 8
@X = external dso_local local_unnamed_addr global [10 x i64], align 16
@_Z2DPB5cxx11 = external dso_local global [10010 x %"class.std::__cxx11::basic_string"], align 16
@N = external dso_local global i32, align 4
@M = external dso_local global i32, align 4
@A = external dso_local global [10 x i64], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str.3 = external hidden unnamed_addr constant [1 x i8], align 1
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

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: mustprogress uwtable
declare dso_local void @_Z8char_maxRNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) local_unnamed_addr #1

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZSteqIcEN9__gnu_cxx11__enable_ifIXsr9__is_charIT_EE7__valueEbE6__typeERKNSt7__cxx1112basic_stringIS2_St11char_traitsIS2_ESaIS2_EEESC_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #3 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::__cxx11::basic_string", align 8
  %2 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @N)
  %3 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %2, ptr noundef nonnull align 4 dereferenceable(4) @M)
  %4 = load i32, ptr @M, align 4, !tbaa !5
  %5 = icmp sgt i32 %4, 0
  br i1 %5, label %.lr.ph, label %.preheader21.preheader

.preheader21.preheader:                           ; preds = %.lr.ph, %0
  br label %.preheader21

.lr.ph:                                           ; preds = %0, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %0 ]
  %6 = getelementptr inbounds [10 x i64], ptr @A, i64 0, i64 %indvars.iv
  %7 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %6)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %8 = load i32, ptr @M, align 4, !tbaa !5
  %9 = sext i32 %8 to i64
  %10 = icmp slt i64 %indvars.iv.next, %9
  br i1 %10, label %.lr.ph, label %.preheader21.preheader, !llvm.loop !9

11:                                               ; preds = %.preheader21
  %12 = tail call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEPKc(ptr noundef nonnull align 8 dereferenceable(32) @_Z2DPB5cxx11, ptr noundef nonnull @.str.3)
  %13 = load i32, ptr @N, align 4, !tbaa !5
  %.not27 = icmp slt i32 %13, 0
  br i1 %.not27, label %.._crit_edge_crit_edge, label %.lr.ph29

.._crit_edge_crit_edge:                           ; preds = %11
  %.pre = sext i32 %13 to i64
  br label %._crit_edge

.preheader21:                                     ; preds = %.preheader21.preheader, %.preheader21
  %indvars.iv35 = phi i64 [ %indvars.iv.next36, %.preheader21 ], [ 0, %.preheader21.preheader ]
  %14 = getelementptr inbounds [10010 x %"class.std::__cxx11::basic_string"], ptr @_Z2DPB5cxx11, i64 0, i64 %indvars.iv35
  %15 = tail call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %14, ptr noundef nonnull align 8 dereferenceable(32) @_ZL4baseB5cxx11)
  %indvars.iv.next36 = add nuw nsw i64 %indvars.iv35, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next36, 10010
  br i1 %exitcond.not, label %11, label %.preheader21, !llvm.loop !11

._crit_edge:                                      ; preds = %.loopexit, %.._crit_edge_crit_edge
  %.pre-phi = phi i64 [ %.pre, %.._crit_edge_crit_edge ], [ %38, %.loopexit ]
  %16 = getelementptr inbounds [10010 x %"class.std::__cxx11::basic_string"], ptr @_Z2DPB5cxx11, i64 0, i64 %.pre-phi
  %17 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(32) %16)
  %18 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %17, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  ret i32 0

.lr.ph29:                                         ; preds = %11, %.loopexit
  %indvars.iv41 = phi i64 [ %indvars.iv.next42, %.loopexit ], [ 0, %11 ]
  %19 = getelementptr inbounds [10010 x %"class.std::__cxx11::basic_string"], ptr @_Z2DPB5cxx11, i64 0, i64 %indvars.iv41
  %20 = call noundef zeroext i1 @_ZSteqIcEN9__gnu_cxx11__enable_ifIXsr9__is_charIT_EE7__valueEbE6__typeERKNSt7__cxx1112basic_stringIS2_St11char_traitsIS2_ESaIS2_EEESC_(ptr noundef nonnull align 8 dereferenceable(32) %19, ptr noundef nonnull align 8 dereferenceable(32) @_ZL4baseB5cxx11) #6
  %21 = load i32, ptr @M, align 4
  %22 = icmp slt i32 %21, 1
  %or.cond.not = select i1 %20, i1 true, i1 %22
  br i1 %or.cond.not, label %.loopexit, label %.lr.ph26

.lr.ph26:                                         ; preds = %.lr.ph29, %31
  %indvars.iv38 = phi i64 [ %indvars.iv.next39, %31 ], [ 0, %.lr.ph29 ]
  %23 = getelementptr inbounds [10 x i64], ptr @A, i64 0, i64 %indvars.iv38
  %24 = load i64, ptr %23, align 8, !tbaa !12
  %25 = getelementptr inbounds [10 x i64], ptr @X, i64 0, i64 %24
  %26 = load i64, ptr %25, align 8, !tbaa !12
  %27 = add nsw i64 %26, %indvars.iv41
  %28 = getelementptr inbounds [10010 x %"class.std::__cxx11::basic_string"], ptr @_Z2DPB5cxx11, i64 0, i64 %27
  %29 = trunc i64 %24 to i8
  %30 = add i8 %29, 48
  call void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_S5_(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %1, ptr noundef nonnull align 8 dereferenceable(32) %19, i8 noundef signext %30)
  invoke void @_Z8char_maxRNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_(ptr noundef nonnull align 8 dereferenceable(32) %28, ptr noundef nonnull %1)
          to label %31 unwind label %35

31:                                               ; preds = %.lr.ph26
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %indvars.iv.next39 = add nuw nsw i64 %indvars.iv38, 1
  %32 = load i32, ptr @M, align 4, !tbaa !5
  %33 = sext i32 %32 to i64
  %34 = icmp slt i64 %indvars.iv.next39, %33
  br i1 %34, label %.lr.ph26, label %.loopexit, !llvm.loop !14

35:                                               ; preds = %.lr.ph26
  %36 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  resume { ptr, i32 } %36

.loopexit:                                        ; preds = %31, %.lr.ph29
  %indvars.iv.next42 = add nuw nsw i64 %indvars.iv41, 1
  %37 = load i32, ptr @N, align 4, !tbaa !5
  %38 = sext i32 %37 to i64
  %.not.not = icmp slt i64 %indvars.iv41, %38
  br i1 %.not.not, label %.lr.ph29, label %._crit_edge, !llvm.loop !15
}

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

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEPKc(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_S5_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), i8 noundef signext) local_unnamed_addr #5

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #5

; 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 #1 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)) #5

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 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 #2 = { 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 #3 = { 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 #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 = { 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 #6 = { 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 = !{!13, !13, i64 0}
!13 = !{!"long long", !7, i64 0}
!14 = distinct !{!14, !10}
!15 = distinct !{!15, !10}


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