; LLVM IR from bqi343/cp-notebook :: Contests/USACO Solutions/2016-17/Open 2017/Bronze (17 Open B2)

; 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_ifstream" = type { %"class.std::basic_istream.base", %"class.std::basic_filebuf", %"class.std::basic_ios" }
%"class.std::basic_istream.base" = type { ptr, i64 }
%"class.std::basic_filebuf" = type { %"class.std::basic_streambuf", %union.pthread_mutex_t, %"class.std::__basic_file", i32, %struct.__mbstate_t, %struct.__mbstate_t, %struct.__mbstate_t, ptr, i64, i8, i8, i8, i8, ptr, ptr, i8, ptr, ptr, i64, ptr, ptr }
%"class.std::basic_streambuf" = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, %"class.std::locale" }
%"class.std::locale" = type { ptr }
%union.pthread_mutex_t = type { %struct.__pthread_mutex_s }
%struct.__pthread_mutex_s = type { i32, i32, i32, i32, i32, i16, i16, %struct.__pthread_internal_list }
%struct.__pthread_internal_list = type { ptr, ptr }
%"class.std::__basic_file" = type <{ ptr, i8, [7 x i8] }>
%struct.__mbstate_t = type { i32, %union.anon }
%union.anon = type { i32 }
%"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::basic_ofstream" = type { %"class.std::basic_ostream.base", %"class.std::basic_filebuf", %"class.std::basic_ios" }
%"class.std::basic_ostream.base" = type { ptr }
%"class.std::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<char, std::pair<const char, int>, std::_Select1st<std::pair<const char, int>>, std::less<char>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<char, std::pair<const char, int>, std::_Select1st<std::pair<const char, int>>, std::less<char>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" = type { ptr, ptr, ptr }

@cin = external dso_local global %"class.std::basic_ifstream", align 8
@cout = external dso_local global %"class.std::basic_ofstream", align 8
@n = external dso_local global i32, align 4
@m = external dso_local global i32, align 4
@ans = external dso_local global i32, align 4
@x = external dso_local global %"class.std::map", align 8
@_Z2v1B5cxx11 = external dso_local global %"class.std::vector", align 8
@_Z2v2B5cxx11 = external dso_local global %"class.std::vector", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i8, align 1
  %3 = alloca i8, align 1
  %4 = alloca i8, align 1
  %5 = alloca i8, align 1
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %13 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @cin, ptr noundef nonnull align 4 dereferenceable(4) @n)
  %14 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %13, ptr noundef nonnull align 4 dereferenceable(4) @m)
  %15 = load i32, ptr @n, align 4, !tbaa !5
  %16 = sext i32 %15 to i64
  call void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24) @_Z2v1B5cxx11, i64 noundef %16)
  %17 = load i32, ptr @n, align 4, !tbaa !5
  %18 = sext i32 %17 to i64
  call void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24) @_Z2v2B5cxx11, i64 noundef %18)
  call void @llvm.lifetime.start.p0(i64 1, ptr %2) #5
  store i8 65, ptr %2, align 1, !tbaa !9
  %19 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixEOc(ptr noundef nonnull align 8 dereferenceable(48) @x, ptr noundef nonnull align 1 dereferenceable(1) %2)
  store i32 0, ptr %19, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 1, ptr %2) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %3) #5
  store i8 67, ptr %3, align 1, !tbaa !9
  %20 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixEOc(ptr noundef nonnull align 8 dereferenceable(48) @x, ptr noundef nonnull align 1 dereferenceable(1) %3)
  store i32 1, ptr %20, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 1, ptr %3) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %4) #5
  store i8 71, ptr %4, align 1, !tbaa !9
  %21 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixEOc(ptr noundef nonnull align 8 dereferenceable(48) @x, ptr noundef nonnull align 1 dereferenceable(1) %4)
  store i32 2, ptr %21, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #5
  store i8 84, ptr %5, align 1, !tbaa !9
  %22 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixEOc(ptr noundef nonnull align 8 dereferenceable(48) @x, ptr noundef nonnull align 1 dereferenceable(1) %5)
  store i32 3, ptr %22, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #5
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %23

23:                                               ; preds = %33, %0
  %24 = load i32, ptr %6, align 4, !tbaa !5
  %25 = load i32, ptr @n, align 4, !tbaa !5
  %26 = icmp slt i32 %24, %25
  br i1 %26, label %28, label %27

27:                                               ; preds = %23
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  br label %36

28:                                               ; preds = %23
  %29 = load i32, ptr %6, align 4, !tbaa !5
  %30 = sext i32 %29 to i64
  %31 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @_Z2v1B5cxx11, i64 noundef %30) #5
  %32 = call 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) @cin, ptr noundef nonnull align 8 dereferenceable(32) %31)
  br label %33

33:                                               ; preds = %28
  %34 = load i32, ptr %6, align 4, !tbaa !5
  %35 = add nsw i32 %34, 1
  store i32 %35, ptr %6, align 4, !tbaa !5
  br label %23, !llvm.loop !10

36:                                               ; preds = %27
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #5
  store i32 0, ptr %7, align 4, !tbaa !5
  br label %37

37:                                               ; preds = %47, %36
  %38 = load i32, ptr %7, align 4, !tbaa !5
  %39 = load i32, ptr @n, align 4, !tbaa !5
  %40 = icmp slt i32 %38, %39
  br i1 %40, label %42, label %41

41:                                               ; preds = %37
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #5
  br label %50

42:                                               ; preds = %37
  %43 = load i32, ptr %7, align 4, !tbaa !5
  %44 = sext i32 %43 to i64
  %45 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @_Z2v2B5cxx11, i64 noundef %44) #5
  %46 = call 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) @cin, ptr noundef nonnull align 8 dereferenceable(32) %45)
  br label %47

47:                                               ; preds = %42
  %48 = load i32, ptr %7, align 4, !tbaa !5
  %49 = add nsw i32 %48, 1
  store i32 %49, ptr %7, align 4, !tbaa !5
  br label %37, !llvm.loop !12

50:                                               ; preds = %41
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #5
  store i32 0, ptr %8, align 4, !tbaa !5
  br label %51

51:                                               ; preds = %97, %50
  %52 = load i32, ptr %8, align 4, !tbaa !5
  %53 = load i32, ptr @m, align 4, !tbaa !5
  %54 = icmp slt i32 %52, %53
  br i1 %54, label %56, label %55

55:                                               ; preds = %51
  store i32 8, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #5
  br label %100

56:                                               ; preds = %51
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #5
  store i32 0, ptr %10, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #5
  store i32 0, ptr %11, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #5
  store i32 0, ptr %12, align 4, !tbaa !5
  br label %57

57:                                               ; preds = %85, %56
  %58 = load i32, ptr %12, align 4, !tbaa !5
  %59 = load i32, ptr @n, align 4, !tbaa !5
  %60 = icmp slt i32 %58, %59
  br i1 %60, label %62, label %61

61:                                               ; preds = %57
  store i32 11, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #5
  br label %88

62:                                               ; preds = %57
  %63 = load i32, ptr %12, align 4, !tbaa !5
  %64 = sext i32 %63 to i64
  %65 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @_Z2v1B5cxx11, i64 noundef %64) #5
  %66 = load i32, ptr %8, align 4, !tbaa !5
  %67 = sext i32 %66 to i64
  %68 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %65, i64 noundef %67)
  %69 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) @x, ptr noundef nonnull align 1 dereferenceable(1) %68)
  %70 = load i32, ptr %69, align 4, !tbaa !5
  %71 = shl i32 1, %70
  %72 = load i32, ptr %10, align 4, !tbaa !5
  %73 = or i32 %72, %71
  store i32 %73, ptr %10, align 4, !tbaa !5
  %74 = load i32, ptr %12, align 4, !tbaa !5
  %75 = sext i32 %74 to i64
  %76 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @_Z2v2B5cxx11, i64 noundef %75) #5
  %77 = load i32, ptr %8, align 4, !tbaa !5
  %78 = sext i32 %77 to i64
  %79 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %76, i64 noundef %78)
  %80 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) @x, ptr noundef nonnull align 1 dereferenceable(1) %79)
  %81 = load i32, ptr %80, align 4, !tbaa !5
  %82 = shl i32 1, %81
  %83 = load i32, ptr %11, align 4, !tbaa !5
  %84 = or i32 %83, %82
  store i32 %84, ptr %11, align 4, !tbaa !5
  br label %85

85:                                               ; preds = %62
  %86 = load i32, ptr %12, align 4, !tbaa !5
  %87 = add nsw i32 %86, 1
  store i32 %87, ptr %12, align 4, !tbaa !5
  br label %57, !llvm.loop !13

88:                                               ; preds = %61
  %89 = load i32, ptr %10, align 4, !tbaa !5
  %90 = load i32, ptr %11, align 4, !tbaa !5
  %91 = and i32 %89, %90
  %92 = icmp eq i32 %91, 0
  br i1 %92, label %93, label %96

93:                                               ; preds = %88
  %94 = load i32, ptr @ans, align 4, !tbaa !5
  %95 = add nsw i32 %94, 1
  store i32 %95, ptr @ans, align 4, !tbaa !5
  br label %96

96:                                               ; preds = %93, %88
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #5
  br label %97

97:                                               ; preds = %96
  %98 = load i32, ptr %8, align 4, !tbaa !5
  %99 = add nsw i32 %98, 1
  store i32 %99, ptr %8, align 4, !tbaa !5
  br label %51, !llvm.loop !14

100:                                              ; preds = %55
  %101 = load i32, ptr @ans, align 4, !tbaa !5
  %102 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @cout, i32 noundef %101)
  %103 = load i32, ptr %1, align 4
  ret i32 %103
}

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixEOc(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 1 dereferenceable(1)) #2 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

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)) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 1 dereferenceable(1)) #2 align 2

; Function Attrs: mustprogress 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

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #1

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

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

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


; 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_ifstream" = type { %"class.std::basic_istream.base", %"class.std::basic_filebuf", %"class.std::basic_ios" }
%"class.std::basic_istream.base" = type { ptr, i64 }
%"class.std::basic_filebuf" = type { %"class.std::basic_streambuf", %union.pthread_mutex_t, %"class.std::__basic_file", i32, %struct.__mbstate_t, %struct.__mbstate_t, %struct.__mbstate_t, ptr, i64, i8, i8, i8, i8, ptr, ptr, i8, ptr, ptr, i64, ptr, ptr }
%"class.std::basic_streambuf" = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, %"class.std::locale" }
%"class.std::locale" = type { ptr }
%union.pthread_mutex_t = type { %struct.__pthread_mutex_s }
%struct.__pthread_mutex_s = type { i32, i32, i32, i32, i32, i16, i16, %struct.__pthread_internal_list }
%struct.__pthread_internal_list = type { ptr, ptr }
%"class.std::__basic_file" = type <{ ptr, i8, [7 x i8] }>
%struct.__mbstate_t = type { i32, %union.anon }
%union.anon = type { i32 }
%"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::basic_ofstream" = type { %"class.std::basic_ostream.base", %"class.std::basic_filebuf", %"class.std::basic_ios" }
%"class.std::basic_ostream.base" = type { ptr }
%"class.std::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<char, std::pair<const char, int>, std::_Select1st<std::pair<const char, int>>, std::less<char>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<char, std::pair<const char, int>, std::_Select1st<std::pair<const char, int>>, std::less<char>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" = type { ptr, ptr, ptr }

@cin = external dso_local global %"class.std::basic_ifstream", align 8
@cout = external dso_local global %"class.std::basic_ofstream", align 8
@n = external dso_local global i32, align 4
@m = external dso_local global i32, align 4
@ans = external dso_local local_unnamed_addr global i32, align 4
@x = external dso_local global %"class.std::map", align 8
@_Z2v1B5cxx11 = external dso_local global %"class.std::vector", align 8
@_Z2v2B5cxx11 = external dso_local global %"class.std::vector", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i8, align 1
  %2 = alloca i8, align 1
  %3 = alloca i8, align 1
  %4 = alloca i8, align 1
  %5 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @cin, ptr noundef nonnull align 4 dereferenceable(4) @n)
  %6 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %5, ptr noundef nonnull align 4 dereferenceable(4) @m)
  %7 = load i32, ptr @n, align 4, !tbaa !5
  %8 = sext i32 %7 to i64
  tail call void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24) @_Z2v1B5cxx11, i64 noundef %8)
  %9 = load i32, ptr @n, align 4, !tbaa !5
  %10 = sext i32 %9 to i64
  tail call void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24) @_Z2v2B5cxx11, i64 noundef %10)
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %1) #5
  store i8 65, ptr %1, align 1, !tbaa !9
  %11 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixEOc(ptr noundef nonnull align 8 dereferenceable(48) @x, ptr noundef nonnull align 1 dereferenceable(1) %1)
  store i32 0, ptr %11, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %1) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %2) #5
  store i8 67, ptr %2, align 1, !tbaa !9
  %12 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixEOc(ptr noundef nonnull align 8 dereferenceable(48) @x, ptr noundef nonnull align 1 dereferenceable(1) %2)
  store i32 1, ptr %12, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %3) #5
  store i8 71, ptr %3, align 1, !tbaa !9
  %13 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixEOc(ptr noundef nonnull align 8 dereferenceable(48) @x, ptr noundef nonnull align 1 dereferenceable(1) %3)
  store i32 2, ptr %13, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %4) #5
  store i8 84, ptr %4, align 1, !tbaa !9
  %14 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixEOc(ptr noundef nonnull align 8 dereferenceable(48) @x, ptr noundef nonnull align 1 dereferenceable(1) %4)
  store i32 3, ptr %14, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #5
  %15 = load i32, ptr @n, align 4, !tbaa !5
  %16 = icmp sgt i32 %15, 0
  br i1 %16, label %.lr.ph, label %.preheader24

.preheader25:                                     ; preds = %.lr.ph
  %17 = icmp sgt i32 %20, 0
  br i1 %17, label %.lr.ph28, label %.preheader24

.lr.ph:                                           ; preds = %0, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %0 ]
  %18 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @_Z2v1B5cxx11, i64 noundef %indvars.iv) #5
  %19 = call 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) @cin, ptr noundef nonnull align 8 dereferenceable(32) %18)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %20 = load i32, ptr @n, align 4, !tbaa !5
  %21 = sext i32 %20 to i64
  %22 = icmp slt i64 %indvars.iv.next, %21
  br i1 %22, label %.lr.ph, label %.preheader25, !llvm.loop !10

.preheader24:                                     ; preds = %.lr.ph28, %0, %.preheader25
  %23 = phi i32 [ %20, %.preheader25 ], [ %15, %0 ], [ %30, %.lr.ph28 ]
  %24 = load i32, ptr @m, align 4, !tbaa !5
  %25 = icmp sgt i32 %24, 0
  br i1 %25, label %.preheader.lr.ph, label %._crit_edge35

.preheader.lr.ph:                                 ; preds = %.preheader24
  %26 = icmp sgt i32 %23, 0
  br i1 %26, label %.preheader, label %.preheader.lr.ph.split.us

.preheader.lr.ph.split.us:                        ; preds = %.preheader.lr.ph
  %ans.promoted = load i32, ptr @ans, align 4, !tbaa !5
  %27 = add i32 %ans.promoted, %24
  store i32 %27, ptr @ans, align 4, !tbaa !5
  br label %._crit_edge35

.lr.ph28:                                         ; preds = %.preheader25, %.lr.ph28
  %indvars.iv39 = phi i64 [ %indvars.iv.next40, %.lr.ph28 ], [ 0, %.preheader25 ]
  %28 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @_Z2v2B5cxx11, i64 noundef %indvars.iv39) #5
  %29 = call 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) @cin, ptr noundef nonnull align 8 dereferenceable(32) %28)
  %indvars.iv.next40 = add nuw nsw i64 %indvars.iv39, 1
  %30 = load i32, ptr @n, align 4, !tbaa !5
  %31 = sext i32 %30 to i64
  %32 = icmp slt i64 %indvars.iv.next40, %31
  br i1 %32, label %.lr.ph28, label %.preheader24, !llvm.loop !12

.preheader:                                       ; preds = %.preheader.lr.ph, %57
  %33 = phi i32 [ %58, %57 ], [ %23, %.preheader.lr.ph ]
  %indvars.iv45 = phi i64 [ %indvars.iv.next46, %57 ], [ 0, %.preheader.lr.ph ]
  %34 = icmp sgt i32 %33, 0
  br i1 %34, label %.lr.ph32, label %._crit_edge.thread

._crit_edge35:                                    ; preds = %57, %.preheader.lr.ph.split.us, %.preheader24
  %35 = load i32, ptr @ans, align 4, !tbaa !5
  %36 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @cout, i32 noundef %35)
  ret i32 0

._crit_edge:                                      ; preds = %.lr.ph32
  %37 = and i32 %50, %44
  %38 = icmp eq i32 %37, 0
  br i1 %38, label %._crit_edge.thread, label %57

.lr.ph32:                                         ; preds = %.preheader, %.lr.ph32
  %indvars.iv42 = phi i64 [ %indvars.iv.next43, %.lr.ph32 ], [ 0, %.preheader ]
  %.01930 = phi i32 [ %50, %.lr.ph32 ], [ 0, %.preheader ]
  %.02029 = phi i32 [ %44, %.lr.ph32 ], [ 0, %.preheader ]
  %39 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @_Z2v1B5cxx11, i64 noundef %indvars.iv42) #5
  %40 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %39, i64 noundef %indvars.iv45)
  %41 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) @x, ptr noundef nonnull align 1 dereferenceable(1) %40)
  %42 = load i32, ptr %41, align 4, !tbaa !5
  %43 = shl nuw i32 1, %42
  %44 = or i32 %43, %.02029
  %45 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @_Z2v2B5cxx11, i64 noundef %indvars.iv42) #5
  %46 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %45, i64 noundef %indvars.iv45)
  %47 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) @x, ptr noundef nonnull align 1 dereferenceable(1) %46)
  %48 = load i32, ptr %47, align 4, !tbaa !5
  %49 = shl nuw i32 1, %48
  %50 = or i32 %49, %.01930
  %indvars.iv.next43 = add nuw nsw i64 %indvars.iv42, 1
  %51 = load i32, ptr @n, align 4, !tbaa !5
  %52 = sext i32 %51 to i64
  %53 = icmp slt i64 %indvars.iv.next43, %52
  br i1 %53, label %.lr.ph32, label %._crit_edge, !llvm.loop !13

._crit_edge.thread:                               ; preds = %.preheader, %._crit_edge
  %54 = phi i32 [ %51, %._crit_edge ], [ %33, %.preheader ]
  %55 = load i32, ptr @ans, align 4, !tbaa !5
  %56 = add nsw i32 %55, 1
  store i32 %56, ptr @ans, align 4, !tbaa !5
  br label %57

57:                                               ; preds = %._crit_edge.thread, %._crit_edge
  %58 = phi i32 [ %54, %._crit_edge.thread ], [ %51, %._crit_edge ]
  %indvars.iv.next46 = add nuw nsw i64 %indvars.iv45, 1
  %59 = load i32, ptr @m, align 4, !tbaa !5
  %60 = sext i32 %59 to i64
  %61 = icmp slt i64 %indvars.iv.next46, %60
  br i1 %61, label %.preheader, label %._crit_edge35, !llvm.loop !14
}

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 #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixEOc(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

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 #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress 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

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #1

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

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

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


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