; LLVM IR from hao14293/2021-Postgraduate-408 :: PAT/PAT-B/CPP/1003.我要通过 (main)

; 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::__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::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 }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 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 i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca %"class.std::map", align 8
  %11 = alloca i32, align 4
  %12 = alloca i8, align 1
  %13 = alloca i8, align 1
  %14 = alloca i8, align 1
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #5
  store i32 0, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #5
  store i32 0, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 32, ptr %5) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #5
  %15 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
          to label %16 unwind label %22

16:                                               ; preds = %0
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #5
  store i32 0, ptr %8, align 4, !tbaa !5
  br label %17

17:                                               ; preds = %144, %16
  %18 = load i32, ptr %8, align 4, !tbaa !5
  %19 = load i32, ptr %2, align 4, !tbaa !5
  %20 = icmp slt i32 %18, %19
  br i1 %20, label %26, label %21

21:                                               ; preds = %17
  store i32 2, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #5
  br label %149

22:                                               ; preds = %0
  %23 = landingpad { ptr, i32 }
          cleanup
  %24 = extractvalue { ptr, i32 } %23, 0
  store ptr %24, ptr %6, align 8
  %25 = extractvalue { ptr, i32 } %23, 1
  store i32 %25, ptr %7, align 4
  br label %151

26:                                               ; preds = %17
  %27 = 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) %5)
          to label %28 unwind label %35

28:                                               ; preds = %26
  call void @llvm.lifetime.start.p0(i64 48, ptr %10) #5
  call void @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %10) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #5
  store i32 0, ptr %11, align 4, !tbaa !5
  br label %29

29:                                               ; preds = %72, %28
  %30 = load i32, ptr %11, align 4, !tbaa !5
  %31 = sext i32 %30 to i64
  %32 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %5) #5
  %33 = icmp ult i64 %31, %32
  br i1 %33, label %39, label %34

34:                                               ; preds = %29
  store i32 5, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #5
  br label %75

35:                                               ; preds = %26
  %36 = landingpad { ptr, i32 }
          cleanup
  %37 = extractvalue { ptr, i32 } %36, 0
  store ptr %37, ptr %6, align 8
  %38 = extractvalue { ptr, i32 } %36, 1
  store i32 %38, ptr %7, align 4
  br label %148

39:                                               ; preds = %29
  %40 = load i32, ptr %11, align 4, !tbaa !5
  %41 = sext i32 %40 to i64
  %42 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %41)
          to label %43 unwind label %57

43:                                               ; preds = %39
  %44 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %10, ptr noundef nonnull align 1 dereferenceable(1) %42)
          to label %45 unwind label %57

45:                                               ; preds = %43
  %46 = load i32, ptr %44, align 4, !tbaa !5
  %47 = add nsw i32 %46, 1
  store i32 %47, ptr %44, align 4, !tbaa !5
  %48 = load i32, ptr %11, align 4, !tbaa !5
  %49 = sext i32 %48 to i64
  %50 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %49)
          to label %51 unwind label %57

51:                                               ; preds = %45
  %52 = load i8, ptr %50, align 1, !tbaa !9
  %53 = sext i8 %52 to i32
  %54 = icmp eq i32 %53, 80
  br i1 %54, label %55, label %61

55:                                               ; preds = %51
  %56 = load i32, ptr %11, align 4, !tbaa !5
  store i32 %56, ptr %3, align 4, !tbaa !5
  br label %61

57:                                               ; preds = %61, %45, %43, %39
  %58 = landingpad { ptr, i32 }
          cleanup
  %59 = extractvalue { ptr, i32 } %58, 0
  store ptr %59, ptr %6, align 8
  %60 = extractvalue { ptr, i32 } %58, 1
  store i32 %60, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #5
  br label %147

61:                                               ; preds = %55, %51
  %62 = load i32, ptr %11, align 4, !tbaa !5
  %63 = sext i32 %62 to i64
  %64 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %63)
          to label %65 unwind label %57

65:                                               ; preds = %61
  %66 = load i8, ptr %64, align 1, !tbaa !9
  %67 = sext i8 %66 to i32
  %68 = icmp eq i32 %67, 84
  br i1 %68, label %69, label %71

69:                                               ; preds = %65
  %70 = load i32, ptr %11, align 4, !tbaa !5
  store i32 %70, ptr %4, align 4, !tbaa !5
  br label %71

71:                                               ; preds = %69, %65
  br label %72

72:                                               ; preds = %71
  %73 = load i32, ptr %11, align 4, !tbaa !5
  %74 = add nsw i32 %73, 1
  store i32 %74, ptr %11, align 4, !tbaa !5
  br label %29, !llvm.loop !10

75:                                               ; preds = %34
  call void @llvm.lifetime.start.p0(i64 1, ptr %12) #5
  store i8 80, ptr %12, align 1, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 1, ptr %13) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %14) #5
  %76 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixEOc(ptr noundef nonnull align 8 dereferenceable(48) %10, ptr noundef nonnull align 1 dereferenceable(1) %12)
          to label %77 unwind label %122

77:                                               ; preds = %75
  %78 = load i32, ptr %76, align 4, !tbaa !5
  %79 = icmp eq i32 %78, 1
  br i1 %79, label %80, label %117

80:                                               ; preds = %77
  store i8 65, ptr %13, align 1, !tbaa !9
  %81 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixEOc(ptr noundef nonnull align 8 dereferenceable(48) %10, ptr noundef nonnull align 1 dereferenceable(1) %13)
          to label %82 unwind label %126

82:                                               ; preds = %80
  %83 = load i32, ptr %81, align 4, !tbaa !5
  %84 = icmp ne i32 %83, 0
  br i1 %84, label %85, label %117

85:                                               ; preds = %82
  store i8 84, ptr %14, align 1, !tbaa !9
  %86 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixEOc(ptr noundef nonnull align 8 dereferenceable(48) %10, ptr noundef nonnull align 1 dereferenceable(1) %14)
          to label %87 unwind label %130

87:                                               ; preds = %85
  %88 = load i32, ptr %86, align 4, !tbaa !5
  %89 = icmp eq i32 %88, 1
  br i1 %89, label %90, label %117

90:                                               ; preds = %87
  %91 = call noundef i64 @_ZNKSt3mapIciSt4lessIcESaISt4pairIKciEEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) %10) #5
  %92 = icmp eq i64 %91, 3
  br i1 %92, label %93, label %117

93:                                               ; preds = %90
  %94 = load i32, ptr %4, align 4, !tbaa !5
  %95 = load i32, ptr %3, align 4, !tbaa !5
  %96 = sub nsw i32 %94, %95
  %97 = icmp ne i32 %96, 1
  br i1 %97, label %98, label %117

98:                                               ; preds = %93
  %99 = load i32, ptr %4, align 4, !tbaa !5
  %100 = load i32, ptr %3, align 4, !tbaa !5
  %101 = sub nsw i32 %99, %100
  %102 = icmp ne i32 %101, 1
  br i1 %102, label %103, label %117

103:                                              ; preds = %98
  %104 = load i32, ptr %3, align 4, !tbaa !5
  %105 = load i32, ptr %4, align 4, !tbaa !5
  %106 = load i32, ptr %3, align 4, !tbaa !5
  %107 = sub nsw i32 %105, %106
  %108 = sub nsw i32 %107, 1
  %109 = mul nsw i32 %104, %108
  %110 = sext i32 %109 to i64
  %111 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %5) #5
  %112 = load i32, ptr %4, align 4, !tbaa !5
  %113 = sext i32 %112 to i64
  %114 = sub i64 %111, %113
  %115 = sub i64 %114, 1
  %116 = icmp eq i64 %110, %115
  br label %117

117:                                              ; preds = %103, %98, %93, %90, %87, %82, %77
  %118 = phi i1 [ false, %98 ], [ false, %93 ], [ false, %90 ], [ false, %87 ], [ false, %82 ], [ false, %77 ], [ %116, %103 ]
  call void @llvm.lifetime.end.p0(i64 1, ptr %14) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %13) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %12) #5
  br i1 %118, label %119, label %140

119:                                              ; preds = %117
  %120 = invoke i32 (ptr, ...) @printf(ptr noundef @.str)
          to label %121 unwind label %136

121:                                              ; preds = %119
  br label %143

122:                                              ; preds = %75
  %123 = landingpad { ptr, i32 }
          cleanup
  %124 = extractvalue { ptr, i32 } %123, 0
  store ptr %124, ptr %6, align 8
  %125 = extractvalue { ptr, i32 } %123, 1
  store i32 %125, ptr %7, align 4
  br label %135

126:                                              ; preds = %80
  %127 = landingpad { ptr, i32 }
          cleanup
  %128 = extractvalue { ptr, i32 } %127, 0
  store ptr %128, ptr %6, align 8
  %129 = extractvalue { ptr, i32 } %127, 1
  store i32 %129, ptr %7, align 4
  br label %134

130:                                              ; preds = %85
  %131 = landingpad { ptr, i32 }
          cleanup
  %132 = extractvalue { ptr, i32 } %131, 0
  store ptr %132, ptr %6, align 8
  %133 = extractvalue { ptr, i32 } %131, 1
  store i32 %133, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 1, ptr %14) #5
  br label %134

134:                                              ; preds = %130, %126
  call void @llvm.lifetime.end.p0(i64 1, ptr %13) #5
  br label %135

135:                                              ; preds = %134, %122
  call void @llvm.lifetime.end.p0(i64 1, ptr %12) #5
  br label %147

136:                                              ; preds = %140, %119
  %137 = landingpad { ptr, i32 }
          cleanup
  %138 = extractvalue { ptr, i32 } %137, 0
  store ptr %138, ptr %6, align 8
  %139 = extractvalue { ptr, i32 } %137, 1
  store i32 %139, ptr %7, align 4
  br label %147

140:                                              ; preds = %117
  %141 = invoke i32 (ptr, ...) @printf(ptr noundef @.str.1)
          to label %142 unwind label %136

142:                                              ; preds = %140
  br label %143

143:                                              ; preds = %142, %121
  call void @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %10) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr %10) #5
  br label %144

144:                                              ; preds = %143
  %145 = load i32, ptr %8, align 4, !tbaa !5
  %146 = add nsw i32 %145, 1
  store i32 %146, ptr %8, align 4, !tbaa !5
  br label %17, !llvm.loop !12

147:                                              ; preds = %136, %135, %57
  call void @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %10) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr %10) #5
  br label %148

148:                                              ; preds = %147, %35
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #5
  br label %151

149:                                              ; preds = %21
  store i32 0, ptr %1, align 4
  store i32 1, ptr %9, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #5
  %150 = load i32, ptr %1, align 4
  ret i32 %150

151:                                              ; preds = %148, %22
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #5
  br label %152

152:                                              ; preds = %151
  %153 = load ptr, ptr %6, align 8
  %154 = load i32, ptr %7, align 4
  %155 = insertvalue { ptr, i32 } poison, ptr %153, 0
  %156 = insertvalue { ptr, i32 } %155, i32 %154, 1
  resume { ptr, i32 } %156
}

; 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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 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)) #4 align 2

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

; 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)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt3mapIciSt4lessIcESaISt4pairIKciEEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

declare i32 @printf(ptr noundef, ...) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 align 2

; 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 = { "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 = { 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}


; 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::__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::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 }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 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 i32, align 4
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  %3 = alloca %"class.std::map", align 8
  %4 = alloca i8, align 1
  %5 = alloca i8, align 1
  %6 = alloca i8, align 1
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #6
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %2) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %7 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
          to label %.preheader unwind label %10

.preheader:                                       ; preds = %0
  %8 = load i32, ptr %1, align 4, !tbaa !5
  %9 = icmp sgt i32 %8, 0
  br i1 %9, label %.lr.ph50, label %._crit_edge51

._crit_edge51:                                    ; preds = %69, %.preheader
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #6
  ret i32 0

10:                                               ; preds = %0
  %11 = landingpad { ptr, i32 }
          cleanup
  br label %75

.lr.ph50:                                         ; preds = %.preheader, %69
  %.01949 = phi i32 [ %71, %69 ], [ 0, %.preheader ]
  %.02648 = phi i32 [ %.127.lcssa, %69 ], [ 0, %.preheader ]
  %.02947 = phi i32 [ %.130.lcssa, %69 ], [ 0, %.preheader ]
  %12 = 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 %13 unwind label %16

13:                                               ; preds = %.lr.ph50
  call void @llvm.lifetime.start.p0(i64 48, ptr nonnull %3) #6
  call void @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #6
  %14 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %.not52 = icmp eq i64 %14, 0
  br i1 %.not52, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %20, %13
  %.130.lcssa = phi i32 [ %.02947, %13 ], [ %spec.select, %20 ]
  %.127.lcssa = phi i32 [ %.02648, %13 ], [ %.228, %20 ]
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %4) #6
  store i8 80, ptr %4, align 1, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %5) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %6) #6
  %15 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixEOc(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %34 unwind label %60

16:                                               ; preds = %.lr.ph50
  %17 = landingpad { ptr, i32 }
          cleanup
  br label %75

.lr.ph:                                           ; preds = %13, %20
  %indvars.iv = phi i64 [ %indvars.iv.next, %20 ], [ 0, %13 ]
  %.12744 = phi i32 [ %.228, %20 ], [ %.02648, %13 ]
  %.13043 = phi i32 [ %spec.select, %20 ], [ %.02947, %13 ]
  %18 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %indvars.iv)
  %19 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 1 dereferenceable(1) %18)
          to label %20 unwind label %32

20:                                               ; preds = %.lr.ph
  %21 = load i32, ptr %19, align 4, !tbaa !5
  %22 = add nsw i32 %21, 1
  store i32 %22, ptr %19, align 4, !tbaa !5
  %23 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %indvars.iv)
  %24 = load i8, ptr %23, align 1, !tbaa !9
  %25 = icmp eq i8 %24, 80
  %26 = trunc nuw nsw i64 %indvars.iv to i32
  %spec.select = select i1 %25, i32 %26, i32 %.13043
  %27 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %indvars.iv)
  %28 = load i8, ptr %27, align 1, !tbaa !9
  %29 = icmp eq i8 %28, 84
  %.228 = select i1 %29, i32 %26, i32 %.12744
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %30 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %31 = icmp ugt i64 %30, %indvars.iv.next
  br i1 %31, label %.lr.ph, label %._crit_edge, !llvm.loop !10

32:                                               ; preds = %.lr.ph
  %33 = landingpad { ptr, i32 }
          cleanup
  br label %74

34:                                               ; preds = %._crit_edge
  %35 = load i32, ptr %15, align 4, !tbaa !5
  %36 = icmp eq i32 %35, 1
  br i1 %36, label %37, label %.critedge

37:                                               ; preds = %34
  store i8 65, ptr %5, align 1, !tbaa !9
  %38 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixEOc(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %39 unwind label %62

39:                                               ; preds = %37
  %40 = load i32, ptr %38, align 4, !tbaa !5
  %.not = icmp eq i32 %40, 0
  br i1 %.not, label %.critedge, label %41

41:                                               ; preds = %39
  store i8 84, ptr %6, align 1, !tbaa !9
  %42 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEixEOc(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 1 dereferenceable(1) %6)
          to label %43 unwind label %64

43:                                               ; preds = %41
  %44 = load i32, ptr %42, align 4, !tbaa !5
  %45 = icmp eq i32 %44, 1
  br i1 %45, label %46, label %.critedge

46:                                               ; preds = %43
  %47 = call noundef i64 @_ZNKSt3mapIciSt4lessIcESaISt4pairIKciEEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) %3) #6
  %48 = icmp eq i64 %47, 3
  br i1 %48, label %49, label %.critedge

49:                                               ; preds = %46
  %50 = sub nsw i32 %.127.lcssa, %.130.lcssa
  %.not36 = icmp eq i32 %50, 1
  br i1 %.not36, label %.critedge, label %51

51:                                               ; preds = %49
  %52 = add nsw i32 %50, -1
  %53 = mul nsw i32 %52, %.130.lcssa
  %54 = sext i32 %53 to i64
  %55 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %56 = xor i32 %.127.lcssa, -1
  %57 = sext i32 %56 to i64
  %58 = add i64 %55, %57
  %59 = icmp eq i64 %58, %54
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #6
  br i1 %59, label %69, label %68

60:                                               ; preds = %._crit_edge
  %61 = landingpad { ptr, i32 }
          cleanup
  br label %67

62:                                               ; preds = %37
  %63 = landingpad { ptr, i32 }
          cleanup
  br label %66

64:                                               ; preds = %41
  %65 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #6
  br label %66

66:                                               ; preds = %64, %62
  %.pn = phi { ptr, i32 } [ %65, %64 ], [ %63, %62 ]
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #6
  br label %67

67:                                               ; preds = %66, %60
  %.pn.pn = phi { ptr, i32 } [ %.pn, %66 ], [ %61, %60 ]
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #6
  br label %74

.critedge:                                        ; preds = %34, %39, %43, %46, %49
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #6
  br label %68

68:                                               ; preds = %.critedge, %51
  br label %69

69:                                               ; preds = %51, %68
  %.str.1.sink = phi ptr [ @.str.1, %68 ], [ @.str, %51 ]
  %70 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) %.str.1.sink)
  call void @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #6
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %3) #6
  %71 = add nuw nsw i32 %.01949, 1
  %72 = load i32, ptr %1, align 4, !tbaa !5
  %73 = icmp slt i32 %71, %72
  br i1 %73, label %.lr.ph50, label %._crit_edge51, !llvm.loop !12

74:                                               ; preds = %67, %32
  %.pn37 = phi { ptr, i32 } [ %33, %32 ], [ %.pn.pn, %67 ]
  call void @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #6
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %3) #6
  br label %75

75:                                               ; preds = %16, %74, %10
  %.pn37.pn.pn = phi { ptr, i32 } [ %11, %10 ], [ %.pn37, %74 ], [ %17, %16 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn37.pn.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

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

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 #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 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 #4 align 2

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

; Function Attrs: mustprogress uwtable
declare 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 #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt3mapIciSt4lessIcESaISt4pairIKciEEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #2 align 2

; 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: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIciSt4lessIcESaISt4pairIKciEEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 align 2

; 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 = { "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 = { nofree nounwind "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 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}
!12 = distinct !{!12, !11}


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