; LLVM IR from lzyrapx/Competitive-Programming :: ACdream (1105 （DFS）)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }

@mp = external dso_local global [1234 x [1234 x i8]], align 16
@vis = external dso_local global [1234 x [1234 x [4 x i8]]], align 16
@mark = external dso_local global [1234 x [1234 x i8]], align 16
@n = external dso_local global i32, align 4
@m = external dso_local global i32, align 4
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z3dfsiiiRi(i32 noundef, i32 noundef, i32 noundef, ptr noundef nonnull align 4 dereferenceable(4)) #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #1 {
  %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 i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #8
  br label %10

10:                                               ; preds = %72, %0
  %11 = 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)
  %12 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %11, ptr noundef nonnull align 4 dereferenceable(4) @m)
  %13 = load ptr, ptr %12, align 8, !tbaa !5
  %14 = getelementptr i8, ptr %13, i64 -24
  %15 = load i64, ptr %14, align 8
  %16 = getelementptr inbounds i8, ptr %12, i64 %15
  %17 = call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %16)
  br i1 %17, label %18, label %76

18:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #8
  store i32 0, ptr %4, align 4, !tbaa !8
  br label %19

19:                                               ; preds = %55, %18
  %20 = load i32, ptr %4, align 4, !tbaa !8
  %21 = load i32, ptr @n, align 4, !tbaa !8
  %22 = icmp slt i32 %20, %21
  br i1 %22, label %24, label %23

23:                                               ; preds = %19
  store i32 4, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #8
  br label %58

24:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #8
  store i32 0, ptr %6, align 4, !tbaa !8
  br label %25

25:                                               ; preds = %51, %24
  %26 = load i32, ptr %6, align 4, !tbaa !8
  %27 = load i32, ptr @n, align 4, !tbaa !8
  %28 = icmp slt i32 %26, %27
  br i1 %28, label %30, label %29

29:                                               ; preds = %25
  store i32 7, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #8
  br label %54

30:                                               ; preds = %25
  %31 = load i32, ptr %4, align 4, !tbaa !8
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds [1234 x [1234 x i8]], ptr @mp, i64 0, i64 %32
  %34 = load i32, ptr %6, align 4, !tbaa !8
  %35 = sext i32 %34 to i64
  %36 = getelementptr inbounds [1234 x i8], ptr %33, i64 0, i64 %35
  %37 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcEERSt13basic_istreamIT_T0_ES6_RS3_(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 1 dereferenceable(1) %36)
  %38 = load i32, ptr %4, align 4, !tbaa !8
  %39 = sext i32 %38 to i64
  %40 = getelementptr inbounds [1234 x [1234 x i8]], ptr @mp, i64 0, i64 %39
  %41 = load i32, ptr %6, align 4, !tbaa !8
  %42 = sext i32 %41 to i64
  %43 = getelementptr inbounds [1234 x i8], ptr %40, i64 0, i64 %42
  %44 = load i8, ptr %43, align 1, !tbaa !11
  %45 = sext i8 %44 to i32
  %46 = icmp eq i32 %45, 84
  br i1 %46, label %47, label %50

47:                                               ; preds = %30
  %48 = load i32, ptr %4, align 4, !tbaa !8
  store i32 %48, ptr %2, align 4, !tbaa !8
  %49 = load i32, ptr %6, align 4, !tbaa !8
  store i32 %49, ptr %3, align 4, !tbaa !8
  br label %50

50:                                               ; preds = %47, %30
  br label %51

51:                                               ; preds = %50
  %52 = load i32, ptr %6, align 4, !tbaa !8
  %53 = add nsw i32 %52, 1
  store i32 %53, ptr %6, align 4, !tbaa !8
  br label %25, !llvm.loop !12

54:                                               ; preds = %29
  br label %55

55:                                               ; preds = %54
  %56 = load i32, ptr %4, align 4, !tbaa !8
  %57 = add nsw i32 %56, 1
  store i32 %57, ptr %4, align 4, !tbaa !8
  br label %19, !llvm.loop !14

58:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #8
  store i32 0, ptr %7, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #8
  store i32 1, ptr %8, align 4, !tbaa !8
  br label %59

59:                                               ; preds = %69, %58
  %60 = load i32, ptr %8, align 4, !tbaa !8
  %61 = icmp sle i32 %60, 4
  br i1 %61, label %63, label %62

62:                                               ; preds = %59
  store i32 10, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #8
  br label %72

63:                                               ; preds = %59
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #8
  store i32 0, ptr %9, align 4, !tbaa !8
  call void @llvm.memset.p0.i64(ptr align 16 @vis, i8 0, i64 6091024, i1 false)
  call void @llvm.memset.p0.i64(ptr align 16 @mark, i8 0, i64 1522756, i1 false)
  %64 = load i32, ptr %2, align 4, !tbaa !8
  %65 = load i32, ptr %3, align 4, !tbaa !8
  %66 = load i32, ptr %8, align 4, !tbaa !8
  call void @_Z3dfsiiiRi(i32 noundef %64, i32 noundef %65, i32 noundef %66, ptr noundef nonnull align 4 dereferenceable(4) %9)
  %67 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %7, ptr noundef nonnull align 4 dereferenceable(4) %9)
  %68 = load i32, ptr %67, align 4, !tbaa !8
  store i32 %68, ptr %7, align 4, !tbaa !8
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #8
  br label %69

69:                                               ; preds = %63
  %70 = load i32, ptr %8, align 4, !tbaa !8
  %71 = add nsw i32 %70, 1
  store i32 %71, ptr %8, align 4, !tbaa !8
  br label %59, !llvm.loop !15

72:                                               ; preds = %62
  %73 = load i32, ptr %7, align 4, !tbaa !8
  %74 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %73)
  %75 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %74, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #8
  br label %10, !llvm.loop !16

76:                                               ; preds = %10
  store i32 0, ptr %1, align 4
  store i32 1, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #8
  %77 = load i32, ptr %1, align 4
  ret i32 %77
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #3

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264)) #4 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcEERSt13basic_istreamIT_T0_ES6_RS3_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 1 dereferenceable(1)) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #5

; 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)) #6

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

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #4 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)) #7

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 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 #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { 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 #5 = { nocallback nofree nounwind willreturn memory(argmem: write) }
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 = { 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 #8 = { nounwind }

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

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


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

%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }

@mp = external dso_local global [1234 x [1234 x i8]], align 16
@vis = external dso_local local_unnamed_addr global [1234 x [1234 x [4 x i8]]], align 16
@mark = external dso_local local_unnamed_addr global [1234 x [1234 x i8]], align 16
@n = external dso_local global i32, align 4
@m = external dso_local global i32, align 4
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z3dfsiiiRi(i32 noundef, i32 noundef, i32 noundef, ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #1 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = 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)
  %4 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %3, ptr noundef nonnull align 4 dereferenceable(4) @m)
  %5 = load ptr, ptr %4, align 8, !tbaa !5
  %6 = getelementptr i8, ptr %5, i64 -24
  %7 = load i64, ptr %6, align 8
  %8 = getelementptr inbounds i8, ptr %4, i64 %7
  %9 = tail call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %8)
  br i1 %9, label %.preheader24, label %._crit_edge39

.preheader24:                                     ; preds = %0, %._crit_edge32
  %.01838 = phi i32 [ %.1.lcssa, %._crit_edge32 ], [ undef, %0 ]
  %.01937 = phi i32 [ %.120.lcssa, %._crit_edge32 ], [ undef, %0 ]
  %10 = load i32, ptr @n, align 4, !tbaa !8
  %11 = icmp sgt i32 %10, 0
  br i1 %11, label %.preheader, label %._crit_edge32

.preheader:                                       ; preds = %.preheader24, %._crit_edge
  %12 = phi i32 [ %32, %._crit_edge ], [ %10, %.preheader24 ]
  %indvars.iv42 = phi i64 [ %indvars.iv.next43, %._crit_edge ], [ 0, %.preheader24 ]
  %.130 = phi i32 [ %.2.lcssa, %._crit_edge ], [ %.01838, %.preheader24 ]
  %.12029 = phi i32 [ %.221.lcssa, %._crit_edge ], [ %.01937, %.preheader24 ]
  %13 = icmp sgt i32 %12, 0
  br i1 %13, label %.lr.ph, label %.preheader.._crit_edge_crit_edge

.preheader.._crit_edge_crit_edge:                 ; preds = %.preheader
  %.pre = sext i32 %12 to i64
  br label %._crit_edge

.lr.ph:                                           ; preds = %.preheader
  %14 = trunc nuw nsw i64 %indvars.iv42 to i32
  br label %34

._crit_edge32:                                    ; preds = %._crit_edge, %.preheader24
  %.120.lcssa = phi i32 [ %.01937, %.preheader24 ], [ %.221.lcssa, %._crit_edge ]
  %.1.lcssa = phi i32 [ %.01838, %.preheader24 ], [ %.2.lcssa, %._crit_edge ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #8
  store i32 0, ptr %1, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #8
  store i32 0, ptr %2, align 4, !tbaa !8
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 16 dereferenceable(6091024) @vis, i8 0, i64 6091024, i1 false)
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 16 dereferenceable(1522756) @mark, i8 0, i64 1522756, i1 false)
  call void @_Z3dfsiiiRi(i32 noundef %.120.lcssa, i32 noundef %.1.lcssa, i32 noundef 1, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %15 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %1, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %16 = load i32, ptr %15, align 4, !tbaa !8
  store i32 %16, ptr %1, align 4, !tbaa !8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #8
  store i32 0, ptr %2, align 4, !tbaa !8
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 16 dereferenceable(6091024) @vis, i8 0, i64 6091024, i1 false)
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 16 dereferenceable(1522756) @mark, i8 0, i64 1522756, i1 false)
  call void @_Z3dfsiiiRi(i32 noundef %.120.lcssa, i32 noundef %.1.lcssa, i32 noundef 2, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %17 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %1, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %18 = load i32, ptr %17, align 4, !tbaa !8
  store i32 %18, ptr %1, align 4, !tbaa !8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #8
  store i32 0, ptr %2, align 4, !tbaa !8
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 16 dereferenceable(6091024) @vis, i8 0, i64 6091024, i1 false)
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 16 dereferenceable(1522756) @mark, i8 0, i64 1522756, i1 false)
  call void @_Z3dfsiiiRi(i32 noundef %.120.lcssa, i32 noundef %.1.lcssa, i32 noundef 3, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %19 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %1, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %20 = load i32, ptr %19, align 4, !tbaa !8
  store i32 %20, ptr %1, align 4, !tbaa !8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #8
  store i32 0, ptr %2, align 4, !tbaa !8
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 16 dereferenceable(6091024) @vis, i8 0, i64 6091024, i1 false)
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 16 dereferenceable(1522756) @mark, i8 0, i64 1522756, i1 false)
  call void @_Z3dfsiiiRi(i32 noundef %.120.lcssa, i32 noundef %.1.lcssa, i32 noundef 4, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %21 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %1, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %22 = load i32, ptr %21, align 4, !tbaa !8
  store i32 %22, ptr %1, align 4, !tbaa !8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #8
  %23 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %22)
  %24 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %23, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #8
  %25 = 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)
  %26 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %25, ptr noundef nonnull align 4 dereferenceable(4) @m)
  %27 = load ptr, ptr %26, align 8, !tbaa !5
  %28 = getelementptr i8, ptr %27, i64 -24
  %29 = load i64, ptr %28, align 8
  %30 = getelementptr inbounds i8, ptr %26, i64 %29
  %31 = call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %30)
  br i1 %31, label %.preheader24, label %._crit_edge39, !llvm.loop !11

._crit_edge:                                      ; preds = %34, %.preheader.._crit_edge_crit_edge
  %.pre-phi = phi i64 [ %.pre, %.preheader.._crit_edge_crit_edge ], [ %41, %34 ]
  %32 = phi i32 [ %12, %.preheader.._crit_edge_crit_edge ], [ %40, %34 ]
  %.221.lcssa = phi i32 [ %.12029, %.preheader.._crit_edge_crit_edge ], [ %spec.select, %34 ]
  %.2.lcssa = phi i32 [ %.130, %.preheader.._crit_edge_crit_edge ], [ %spec.select23, %34 ]
  %indvars.iv.next43 = add nuw nsw i64 %indvars.iv42, 1
  %33 = icmp slt i64 %indvars.iv.next43, %.pre-phi
  br i1 %33, label %.preheader, label %._crit_edge32, !llvm.loop !13

34:                                               ; preds = %.lr.ph, %34
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %34 ]
  %.226 = phi i32 [ %.130, %.lr.ph ], [ %spec.select23, %34 ]
  %.22125 = phi i32 [ %.12029, %.lr.ph ], [ %spec.select, %34 ]
  %35 = getelementptr inbounds [1234 x [1234 x i8]], ptr @mp, i64 0, i64 %indvars.iv42, i64 %indvars.iv
  %36 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcEERSt13basic_istreamIT_T0_ES6_RS3_(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 1 dereferenceable(1) %35)
  %37 = load i8, ptr %35, align 1, !tbaa !15
  %38 = icmp eq i8 %37, 84
  %spec.select = select i1 %38, i32 %14, i32 %.22125
  %39 = trunc nuw nsw i64 %indvars.iv to i32
  %spec.select23 = select i1 %38, i32 %39, i32 %.226
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %40 = load i32, ptr @n, align 4, !tbaa !8
  %41 = sext i32 %40 to i64
  %42 = icmp slt i64 %indvars.iv.next, %41
  br i1 %42, label %34, label %._crit_edge, !llvm.loop !16

._crit_edge39:                                    ; preds = %._crit_edge32, %0
  ret i32 0
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

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 #3

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264)) local_unnamed_addr #4 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcEERSt13basic_istreamIT_T0_ES6_RS3_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #5

; 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 #6

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

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #4 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)) #7

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 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 #2 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { 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 #5 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
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 = { 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 #8 = { nounwind }

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

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


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