; LLVM IR from AnneLivia/Competitive-Programming :: Online Judges/URI/2502 (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::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z8tolowersRNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32)) #0

; 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 noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: nounwind willreturn memory(read)
declare i32 @tolower(i32 noundef) #3

; 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 i32 @_Z7posfindcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(i8 noundef signext, ptr noundef) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_Z6symbolc(i8 noundef signext) #2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #4 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  %6 = alloca %"class.std::__cxx11::basic_string", align 8
  %7 = alloca %"class.std::__cxx11::basic_string", align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca %"class.std::__cxx11::basic_string", align 8
  %12 = alloca %"class.std::__cxx11::basic_string", align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #7
  call void @llvm.lifetime.start.p0(i64 32, ptr %5) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #7
  call void @llvm.lifetime.start.p0(i64 32, ptr %6) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #7
  call void @llvm.lifetime.start.p0(i64 32, ptr %7) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #7
  br label %13

13:                                               ; preds = %278, %0
  %14 = 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 %15 unwind label %46

15:                                               ; preds = %13
  %16 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %14, ptr noundef nonnull align 4 dereferenceable(4) %3)
          to label %17 unwind label %46

17:                                               ; preds = %15
  %18 = load ptr, ptr %16, align 8, !tbaa !5
  %19 = getelementptr i8, ptr %18, i64 -24
  %20 = load i64, ptr %19, align 8
  %21 = getelementptr inbounds i8, ptr %16, i64 %20
  %22 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %21)
          to label %23 unwind label %46

23:                                               ; preds = %17
  br i1 %22, label %24, label %279

24:                                               ; preds = %23
  %25 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEv(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin)
          to label %26 unwind label %46

26:                                               ; preds = %24
  %27 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_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 %46

28:                                               ; preds = %26
  %29 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_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) %6)
          to label %30 unwind label %46

30:                                               ; preds = %28
  invoke void @_Z8tolowersRNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32) %5)
          to label %31 unwind label %46

31:                                               ; preds = %30
  invoke void @_Z8tolowersRNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32) %6)
          to label %32 unwind label %46

32:                                               ; preds = %31
  br label %33

33:                                               ; preds = %275, %32
  %34 = load i32, ptr %3, align 4, !tbaa !8
  %35 = add nsw i32 %34, -1
  store i32 %35, ptr %3, align 4, !tbaa !8
  %36 = icmp ne i32 %34, 0
  br i1 %36, label %37, label %276

37:                                               ; preds = %33
  %38 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_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) %7)
          to label %39 unwind label %46

39:                                               ; preds = %37
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #7
  store i32 0, ptr %10, align 4, !tbaa !8
  br label %40

40:                                               ; preds = %267, %39
  %41 = load i32, ptr %10, align 4, !tbaa !8
  %42 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %7) #7
  %43 = trunc i64 %42 to i32
  %44 = icmp slt i32 %41, %43
  br i1 %44, label %50, label %45

45:                                               ; preds = %40
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #7
  br label %271

46:                                               ; preds = %276, %273, %271, %37, %31, %30, %28, %26, %24, %17, %15, %13
  %47 = landingpad { ptr, i32 }
          cleanup
  %48 = extractvalue { ptr, i32 } %47, 0
  store ptr %48, ptr %8, align 8
  %49 = extractvalue { ptr, i32 } %47, 1
  store i32 %49, ptr %9, align 4
  br label %281

50:                                               ; preds = %40
  %51 = load i32, ptr %10, align 4, !tbaa !8
  %52 = sext i32 %51 to i64
  %53 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %52)
          to label %54 unwind label %133

54:                                               ; preds = %50
  %55 = load i8, ptr %53, align 1, !tbaa !11
  %56 = sext i8 %55 to i32
  %57 = call i32 @tolower(i32 noundef %56) #8
  %58 = trunc i32 %57 to i8
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %11, ptr noundef nonnull align 8 dereferenceable(32) %5)
          to label %59 unwind label %133

59:                                               ; preds = %54
  %60 = invoke noundef i32 @_Z7posfindcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(i8 noundef signext %58, ptr noundef %11)
          to label %61 unwind label %137

61:                                               ; preds = %59
  store i32 %60, ptr %4, align 4, !tbaa !8
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #7
  %62 = load i32, ptr %4, align 4, !tbaa !8
  %63 = icmp ne i32 %62, -1
  br i1 %63, label %64, label %152

64:                                               ; preds = %61
  %65 = load i32, ptr %10, align 4, !tbaa !8
  %66 = sext i32 %65 to i64
  %67 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %66)
          to label %68 unwind label %133

68:                                               ; preds = %64
  %69 = load i8, ptr %67, align 1, !tbaa !11
  %70 = sext i8 %69 to i32
  %71 = load i32, ptr %10, align 4, !tbaa !8
  %72 = sext i32 %71 to i64
  %73 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %72)
          to label %74 unwind label %133

74:                                               ; preds = %68
  %75 = load i8, ptr %73, align 1, !tbaa !11
  %76 = sext i8 %75 to i32
  %77 = call i32 @toupper(i32 noundef %76) #8
  %78 = icmp eq i32 %70, %77
  br i1 %78, label %79, label %141

79:                                               ; preds = %74
  %80 = load i32, ptr %10, align 4, !tbaa !8
  %81 = sext i32 %80 to i64
  %82 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %81)
          to label %83 unwind label %133

83:                                               ; preds = %79
  %84 = load i8, ptr %82, align 1, !tbaa !11
  %85 = sext i8 %84 to i32
  %86 = icmp sge i32 %85, 48
  br i1 %86, label %87, label %95

87:                                               ; preds = %83
  %88 = load i32, ptr %10, align 4, !tbaa !8
  %89 = sext i32 %88 to i64
  %90 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %89)
          to label %91 unwind label %133

91:                                               ; preds = %87
  %92 = load i8, ptr %90, align 1, !tbaa !11
  %93 = sext i8 %92 to i32
  %94 = icmp sle i32 %93, 57
  br i1 %94, label %141, label %95

95:                                               ; preds = %91, %83
  %96 = load i32, ptr %10, align 4, !tbaa !8
  %97 = sext i32 %96 to i64
  %98 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %97)
          to label %99 unwind label %133

99:                                               ; preds = %95
  %100 = load i8, ptr %98, align 1, !tbaa !11
  %101 = sext i8 %100 to i32
  %102 = call i32 @isspace(i32 noundef %101) #8
  %103 = icmp ne i32 %102, 0
  br i1 %103, label %141, label %104

104:                                              ; preds = %99
  %105 = load i32, ptr %10, align 4, !tbaa !8
  %106 = sext i32 %105 to i64
  %107 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %106)
          to label %108 unwind label %133

108:                                              ; preds = %104
  %109 = load i8, ptr %107, align 1, !tbaa !11
  %110 = call noundef zeroext i1 @_Z6symbolc(i8 noundef signext %109)
  br i1 %110, label %141, label %111

111:                                              ; preds = %108
  %112 = load i32, ptr %10, align 4, !tbaa !8
  %113 = sext i32 %112 to i64
  %114 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %113)
          to label %115 unwind label %133

115:                                              ; preds = %111
  %116 = load i8, ptr %114, align 1, !tbaa !11
  %117 = sext i8 %116 to i32
  %118 = call i32 @isalpha(i32 noundef %117) #8
  %119 = icmp ne i32 %118, 0
  br i1 %119, label %120, label %141

120:                                              ; preds = %115
  %121 = load i32, ptr %4, align 4, !tbaa !8
  %122 = sext i32 %121 to i64
  %123 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %6, i64 noundef %122)
          to label %124 unwind label %133

124:                                              ; preds = %120
  %125 = load i8, ptr %123, align 1, !tbaa !11
  %126 = sext i8 %125 to i32
  %127 = call i32 @toupper(i32 noundef %126) #8
  %128 = trunc i32 %127 to i8
  %129 = load i32, ptr %10, align 4, !tbaa !8
  %130 = sext i32 %129 to i64
  %131 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %130)
          to label %132 unwind label %133

132:                                              ; preds = %124
  store i8 %128, ptr %131, align 1, !tbaa !11
  br label %151

133:                                              ; preds = %258, %254, %241, %237, %228, %221, %212, %204, %196, %185, %181, %170, %166, %156, %152, %145, %141, %124, %120, %111, %104, %95, %87, %79, %68, %64, %54, %50
  %134 = landingpad { ptr, i32 }
          cleanup
  %135 = extractvalue { ptr, i32 } %134, 0
  store ptr %135, ptr %8, align 8
  %136 = extractvalue { ptr, i32 } %134, 1
  store i32 %136, ptr %9, align 4
  br label %270

137:                                              ; preds = %59
  %138 = landingpad { ptr, i32 }
          cleanup
  %139 = extractvalue { ptr, i32 } %138, 0
  store ptr %139, ptr %8, align 8
  %140 = extractvalue { ptr, i32 } %138, 1
  store i32 %140, ptr %9, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #7
  br label %270

141:                                              ; preds = %115, %108, %99, %91, %74
  %142 = load i32, ptr %4, align 4, !tbaa !8
  %143 = sext i32 %142 to i64
  %144 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %6, i64 noundef %143)
          to label %145 unwind label %133

145:                                              ; preds = %141
  %146 = load i8, ptr %144, align 1, !tbaa !11
  %147 = load i32, ptr %10, align 4, !tbaa !8
  %148 = sext i32 %147 to i64
  %149 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %148)
          to label %150 unwind label %133

150:                                              ; preds = %145
  store i8 %146, ptr %149, align 1, !tbaa !11
  br label %151

151:                                              ; preds = %150, %132
  br label %266

152:                                              ; preds = %61
  %153 = load i32, ptr %10, align 4, !tbaa !8
  %154 = sext i32 %153 to i64
  %155 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %154)
          to label %156 unwind label %133

156:                                              ; preds = %152
  %157 = load i8, ptr %155, align 1, !tbaa !11
  %158 = sext i8 %157 to i32
  %159 = call i32 @tolower(i32 noundef %158) #8
  %160 = trunc i32 %159 to i8
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %12, ptr noundef nonnull align 8 dereferenceable(32) %6)
          to label %161 unwind label %133

161:                                              ; preds = %156
  %162 = invoke noundef i32 @_Z7posfindcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(i8 noundef signext %160, ptr noundef %12)
          to label %163 unwind label %250

163:                                              ; preds = %161
  store i32 %162, ptr %4, align 4, !tbaa !8
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #7
  %164 = load i32, ptr %4, align 4, !tbaa !8
  %165 = icmp ne i32 %164, -1
  br i1 %165, label %166, label %265

166:                                              ; preds = %163
  %167 = load i32, ptr %10, align 4, !tbaa !8
  %168 = sext i32 %167 to i64
  %169 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %168)
          to label %170 unwind label %133

170:                                              ; preds = %166
  %171 = load i8, ptr %169, align 1, !tbaa !11
  %172 = sext i8 %171 to i32
  %173 = load i32, ptr %10, align 4, !tbaa !8
  %174 = sext i32 %173 to i64
  %175 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %174)
          to label %176 unwind label %133

176:                                              ; preds = %170
  %177 = load i8, ptr %175, align 1, !tbaa !11
  %178 = sext i8 %177 to i32
  %179 = call i32 @toupper(i32 noundef %178) #8
  %180 = icmp eq i32 %172, %179
  br i1 %180, label %181, label %254

181:                                              ; preds = %176
  %182 = load i32, ptr %10, align 4, !tbaa !8
  %183 = sext i32 %182 to i64
  %184 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %183)
          to label %185 unwind label %133

185:                                              ; preds = %181
  %186 = load i8, ptr %184, align 1, !tbaa !11
  %187 = sext i8 %186 to i32
  %188 = load i32, ptr %10, align 4, !tbaa !8
  %189 = sext i32 %188 to i64
  %190 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %189)
          to label %191 unwind label %133

191:                                              ; preds = %185
  %192 = load i8, ptr %190, align 1, !tbaa !11
  %193 = sext i8 %192 to i32
  %194 = call i32 @toupper(i32 noundef %193) #8
  %195 = icmp eq i32 %187, %194
  br i1 %195, label %196, label %254

196:                                              ; preds = %191
  %197 = load i32, ptr %10, align 4, !tbaa !8
  %198 = sext i32 %197 to i64
  %199 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %198)
          to label %200 unwind label %133

200:                                              ; preds = %196
  %201 = load i8, ptr %199, align 1, !tbaa !11
  %202 = sext i8 %201 to i32
  %203 = icmp sge i32 %202, 48
  br i1 %203, label %204, label %212

204:                                              ; preds = %200
  %205 = load i32, ptr %10, align 4, !tbaa !8
  %206 = sext i32 %205 to i64
  %207 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %206)
          to label %208 unwind label %133

208:                                              ; preds = %204
  %209 = load i8, ptr %207, align 1, !tbaa !11
  %210 = sext i8 %209 to i32
  %211 = icmp sle i32 %210, 57
  br i1 %211, label %254, label %212

212:                                              ; preds = %208, %200
  %213 = load i32, ptr %10, align 4, !tbaa !8
  %214 = sext i32 %213 to i64
  %215 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %214)
          to label %216 unwind label %133

216:                                              ; preds = %212
  %217 = load i8, ptr %215, align 1, !tbaa !11
  %218 = sext i8 %217 to i32
  %219 = call i32 @isspace(i32 noundef %218) #8
  %220 = icmp ne i32 %219, 0
  br i1 %220, label %254, label %221

221:                                              ; preds = %216
  %222 = load i32, ptr %10, align 4, !tbaa !8
  %223 = sext i32 %222 to i64
  %224 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %223)
          to label %225 unwind label %133

225:                                              ; preds = %221
  %226 = load i8, ptr %224, align 1, !tbaa !11
  %227 = call noundef zeroext i1 @_Z6symbolc(i8 noundef signext %226)
  br i1 %227, label %254, label %228

228:                                              ; preds = %225
  %229 = load i32, ptr %10, align 4, !tbaa !8
  %230 = sext i32 %229 to i64
  %231 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %230)
          to label %232 unwind label %133

232:                                              ; preds = %228
  %233 = load i8, ptr %231, align 1, !tbaa !11
  %234 = sext i8 %233 to i32
  %235 = call i32 @isalpha(i32 noundef %234) #8
  %236 = icmp ne i32 %235, 0
  br i1 %236, label %237, label %254

237:                                              ; preds = %232
  %238 = load i32, ptr %4, align 4, !tbaa !8
  %239 = sext i32 %238 to i64
  %240 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %239)
          to label %241 unwind label %133

241:                                              ; preds = %237
  %242 = load i8, ptr %240, align 1, !tbaa !11
  %243 = sext i8 %242 to i32
  %244 = call i32 @toupper(i32 noundef %243) #8
  %245 = trunc i32 %244 to i8
  %246 = load i32, ptr %10, align 4, !tbaa !8
  %247 = sext i32 %246 to i64
  %248 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %247)
          to label %249 unwind label %133

249:                                              ; preds = %241
  store i8 %245, ptr %248, align 1, !tbaa !11
  br label %264

250:                                              ; preds = %161
  %251 = landingpad { ptr, i32 }
          cleanup
  %252 = extractvalue { ptr, i32 } %251, 0
  store ptr %252, ptr %8, align 8
  %253 = extractvalue { ptr, i32 } %251, 1
  store i32 %253, ptr %9, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #7
  br label %270

254:                                              ; preds = %232, %225, %216, %208, %191, %176
  %255 = load i32, ptr %4, align 4, !tbaa !8
  %256 = sext i32 %255 to i64
  %257 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %256)
          to label %258 unwind label %133

258:                                              ; preds = %254
  %259 = load i8, ptr %257, align 1, !tbaa !11
  %260 = load i32, ptr %10, align 4, !tbaa !8
  %261 = sext i32 %260 to i64
  %262 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef %261)
          to label %263 unwind label %133

263:                                              ; preds = %258
  store i8 %259, ptr %262, align 1, !tbaa !11
  br label %264

264:                                              ; preds = %263, %249
  br label %265

265:                                              ; preds = %264, %163
  br label %266

266:                                              ; preds = %265, %151
  br label %267

267:                                              ; preds = %266
  %268 = load i32, ptr %10, align 4, !tbaa !8
  %269 = add nsw i32 %268, 1
  store i32 %269, ptr %10, align 4, !tbaa !8
  br label %40, !llvm.loop !12

270:                                              ; preds = %250, %137, %133
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #7
  br label %281

271:                                              ; preds = %45
  %272 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(32) %7)
          to label %273 unwind label %46

273:                                              ; preds = %271
  %274 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %272, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %275 unwind label %46

275:                                              ; preds = %273
  br label %33, !llvm.loop !14

276:                                              ; preds = %33
  %277 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %278 unwind label %46

278:                                              ; preds = %276
  br label %13, !llvm.loop !15

279:                                              ; preds = %23
  store i32 0, ptr %1, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %7) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %6) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %5) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  %280 = load i32, ptr %1, align 4
  ret i32 %280

281:                                              ; preds = %270, %46
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %7) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %6) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %5) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  br label %282

282:                                              ; preds = %281
  %283 = load ptr, ptr %8, align 8
  %284 = load i32, ptr %9, align 4
  %285 = insertvalue { ptr, i32 } poison, ptr %283, 0
  %286 = insertvalue { ptr, i32 } %285, i32 %284, 1
  resume { ptr, i32 } %286
}

; 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)) #5

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264)) #0 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEv(ptr noundef nonnull align 8 dereferenceable(16)) #5

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) #6

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 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

; Function Attrs: nounwind willreturn memory(read)
declare i32 @toupper(i32 noundef) #3

; Function Attrs: nounwind willreturn memory(read)
declare i32 @isspace(i32 noundef) #3

; Function Attrs: nounwind willreturn memory(read)
declare i32 @isalpha(i32 noundef) #3

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

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #6

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

!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}


; 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" }
%"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] }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z8tolowersRNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #0

; 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 noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nofree nounwind willreturn memory(read)
declare i32 @tolower(i32 noundef) local_unnamed_addr #3

; 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 i32 @_Z7posfindcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(i8 noundef signext, ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_Z6symbolc(i8 noundef signext) local_unnamed_addr #2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #4 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca %"class.std::__cxx11::basic_string", align 8
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  %6 = alloca %"class.std::__cxx11::basic_string", align 8
  %7 = alloca %"class.std::__cxx11::basic_string", align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #7
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %3) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #7
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %4) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #7
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %5) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #7
  br label %8

8:                                                ; preds = %155, %0
  %9 = 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 %10 unwind label %.loopexit.split-lp

10:                                               ; preds = %8
  %11 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %9, ptr noundef nonnull align 4 dereferenceable(4) %2)
          to label %12 unwind label %.loopexit.split-lp

12:                                               ; preds = %10
  %13 = load ptr, ptr %11, align 8, !tbaa !5
  %14 = getelementptr i8, ptr %13, i64 -24
  %15 = load i64, ptr %14, align 8
  %16 = getelementptr inbounds i8, ptr %11, i64 %15
  %17 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %16)
          to label %18 unwind label %.loopexit.split-lp

18:                                               ; preds = %12
  br i1 %17, label %19, label %157

19:                                               ; preds = %18
  %20 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEv(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin)
          to label %21 unwind label %.loopexit.split-lp

21:                                               ; preds = %19
  %22 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %3)
          to label %23 unwind label %.loopexit.split-lp

23:                                               ; preds = %21
  %24 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_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) %4)
          to label %25 unwind label %.loopexit.split-lp

25:                                               ; preds = %23
  invoke void @_Z8tolowersRNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32) %3)
          to label %26 unwind label %.loopexit.split-lp

26:                                               ; preds = %25
  invoke void @_Z8tolowersRNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(32) %4)
          to label %.preheader45 unwind label %.loopexit.split-lp

.preheader45:                                     ; preds = %26, %153
  %27 = load i32, ptr %2, align 4, !tbaa !8
  %28 = add nsw i32 %27, -1
  store i32 %28, ptr %2, align 4, !tbaa !8
  %.not = icmp eq i32 %27, 0
  br i1 %.not, label %155, label %29

29:                                               ; preds = %.preheader45
  %30 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_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 %.preheader unwind label %.loopexit

.preheader:                                       ; preds = %29
  %31 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %5) #7
  %32 = trunc i64 %31 to i32
  %33 = icmp sgt i32 %32, 0
  br i1 %33, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %149, %.preheader
  %34 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(32) %5)
          to label %153 unwind label %.loopexit

.loopexit:                                        ; preds = %29, %._crit_edge, %153
  %lpad.loopexit = landingpad { ptr, i32 }
          cleanup
  br label %158

.loopexit.split-lp:                               ; preds = %8, %10, %12, %19, %21, %23, %25, %26, %155
  %lpad.loopexit.split-lp = landingpad { ptr, i32 }
          cleanup
  br label %158

.lr.ph:                                           ; preds = %.preheader, %149
  %indvars.iv = phi i64 [ %indvars.iv.next, %149 ], [ 0, %.preheader ]
  %35 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %indvars.iv)
  %36 = load i8, ptr %35, align 1, !tbaa !11
  %37 = sext i8 %36 to i32
  %38 = call i32 @tolower(i32 noundef %37) #8
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %6, ptr noundef nonnull align 8 dereferenceable(32) %3)
          to label %39 unwind label %81

39:                                               ; preds = %.lr.ph
  %40 = trunc i32 %38 to i8
  %41 = invoke noundef i32 @_Z7posfindcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(i8 noundef signext %40, ptr noundef nonnull %6)
          to label %42 unwind label %83

42:                                               ; preds = %39
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #7
  %.not37 = icmp eq i32 %41, -1
  %43 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %indvars.iv)
  %44 = load i8, ptr %43, align 1, !tbaa !11
  %45 = sext i8 %44 to i32
  br i1 %.not37, label %89, label %46

46:                                               ; preds = %42
  %47 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %indvars.iv)
  %48 = load i8, ptr %47, align 1, !tbaa !11
  %49 = sext i8 %48 to i32
  %50 = call i32 @toupper(i32 noundef %49) #8
  %51 = icmp eq i32 %50, %45
  br i1 %51, label %52, label %85

52:                                               ; preds = %46
  %53 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %indvars.iv)
  %54 = load i8, ptr %53, align 1, !tbaa !11
  %55 = icmp sgt i8 %54, 47
  br i1 %55, label %56, label %60

56:                                               ; preds = %52
  %57 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %indvars.iv)
  %58 = load i8, ptr %57, align 1, !tbaa !11
  %59 = icmp slt i8 %58, 58
  br i1 %59, label %85, label %60

60:                                               ; preds = %56, %52
  %61 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %indvars.iv)
  %62 = load i8, ptr %61, align 1, !tbaa !11
  %63 = sext i8 %62 to i32
  %64 = call i32 @isspace(i32 noundef %63) #8
  %.not43 = icmp eq i32 %64, 0
  br i1 %.not43, label %65, label %85

65:                                               ; preds = %60
  %66 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %indvars.iv)
  %67 = load i8, ptr %66, align 1, !tbaa !11
  %68 = call noundef zeroext i1 @_Z6symbolc(i8 noundef signext %67)
  br i1 %68, label %85, label %69

69:                                               ; preds = %65
  %70 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %indvars.iv)
  %71 = load i8, ptr %70, align 1, !tbaa !11
  %72 = sext i8 %71 to i32
  %73 = call i32 @isalpha(i32 noundef %72) #8
  %.not44 = icmp eq i32 %73, 0
  br i1 %.not44, label %85, label %74

74:                                               ; preds = %69
  %75 = sext i32 %41 to i64
  %76 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %75)
  %77 = load i8, ptr %76, align 1, !tbaa !11
  %78 = sext i8 %77 to i32
  %79 = call i32 @toupper(i32 noundef %78) #8
  %80 = trunc i32 %79 to i8
  br label %.sink.split

81:                                               ; preds = %89, %.lr.ph
  %82 = landingpad { ptr, i32 }
          cleanup
  br label %158

83:                                               ; preds = %39
  %84 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #7
  br label %158

85:                                               ; preds = %69, %65, %60, %56, %46
  %86 = sext i32 %41 to i64
  %87 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %86)
  %88 = load i8, ptr %87, align 1, !tbaa !11
  br label %.sink.split

89:                                               ; preds = %42
  %90 = call i32 @tolower(i32 noundef %45) #8
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %7, ptr noundef nonnull align 8 dereferenceable(32) %4)
          to label %91 unwind label %81

91:                                               ; preds = %89
  %92 = trunc i32 %90 to i8
  %93 = invoke noundef i32 @_Z7posfindcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(i8 noundef signext %92, ptr noundef nonnull %7)
          to label %94 unwind label %142

94:                                               ; preds = %91
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #7
  %.not40 = icmp eq i32 %93, -1
  br i1 %.not40, label %149, label %95

95:                                               ; preds = %94
  %96 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %indvars.iv)
  %97 = load i8, ptr %96, align 1, !tbaa !11
  %98 = sext i8 %97 to i32
  %99 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %indvars.iv)
  %100 = load i8, ptr %99, align 1, !tbaa !11
  %101 = sext i8 %100 to i32
  %102 = call i32 @toupper(i32 noundef %101) #8
  %103 = icmp eq i32 %102, %98
  br i1 %103, label %104, label %144

104:                                              ; preds = %95
  %105 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %indvars.iv)
  %106 = load i8, ptr %105, align 1, !tbaa !11
  %107 = sext i8 %106 to i32
  %108 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %indvars.iv)
  %109 = load i8, ptr %108, align 1, !tbaa !11
  %110 = sext i8 %109 to i32
  %111 = call i32 @toupper(i32 noundef %110) #8
  %112 = icmp eq i32 %111, %107
  br i1 %112, label %113, label %144

113:                                              ; preds = %104
  %114 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %indvars.iv)
  %115 = load i8, ptr %114, align 1, !tbaa !11
  %116 = icmp sgt i8 %115, 47
  br i1 %116, label %117, label %121

117:                                              ; preds = %113
  %118 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %indvars.iv)
  %119 = load i8, ptr %118, align 1, !tbaa !11
  %120 = icmp slt i8 %119, 58
  br i1 %120, label %144, label %121

121:                                              ; preds = %117, %113
  %122 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %indvars.iv)
  %123 = load i8, ptr %122, align 1, !tbaa !11
  %124 = sext i8 %123 to i32
  %125 = call i32 @isspace(i32 noundef %124) #8
  %.not41 = icmp eq i32 %125, 0
  br i1 %.not41, label %126, label %144

126:                                              ; preds = %121
  %127 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %indvars.iv)
  %128 = load i8, ptr %127, align 1, !tbaa !11
  %129 = call noundef zeroext i1 @_Z6symbolc(i8 noundef signext %128)
  br i1 %129, label %144, label %130

130:                                              ; preds = %126
  %131 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %indvars.iv)
  %132 = load i8, ptr %131, align 1, !tbaa !11
  %133 = sext i8 %132 to i32
  %134 = call i32 @isalpha(i32 noundef %133) #8
  %.not42 = icmp eq i32 %134, 0
  br i1 %.not42, label %144, label %135

135:                                              ; preds = %130
  %136 = sext i32 %93 to i64
  %137 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %136)
  %138 = load i8, ptr %137, align 1, !tbaa !11
  %139 = sext i8 %138 to i32
  %140 = call i32 @toupper(i32 noundef %139) #8
  %141 = trunc i32 %140 to i8
  br label %.sink.split

142:                                              ; preds = %91
  %143 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #7
  br label %158

144:                                              ; preds = %130, %126, %121, %117, %104, %95
  %145 = sext i32 %93 to i64
  %146 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %145)
  %147 = load i8, ptr %146, align 1, !tbaa !11
  br label %.sink.split

.sink.split:                                      ; preds = %144, %135, %74, %85
  %.sink = phi i8 [ %88, %85 ], [ %80, %74 ], [ %141, %135 ], [ %147, %144 ]
  %148 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %indvars.iv)
  store i8 %.sink, ptr %148, align 1, !tbaa !11
  br label %149

149:                                              ; preds = %.sink.split, %94
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %150 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %5) #7
  %sext = shl i64 %150, 32
  %151 = ashr exact i64 %sext, 32
  %152 = icmp slt i64 %indvars.iv.next, %151
  br i1 %152, label %.lr.ph, label %._crit_edge, !llvm.loop !12

153:                                              ; preds = %._crit_edge
  %154 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %34, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %.preheader45 unwind label %.loopexit, !llvm.loop !14

155:                                              ; preds = %.preheader45
  %156 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %8 unwind label %.loopexit.split-lp, !llvm.loop !15

157:                                              ; preds = %18
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  ret i32 0

158:                                              ; preds = %.loopexit, %.loopexit.split-lp, %81, %83, %142
  %.pn.pn = phi { ptr, i32 } [ %143, %142 ], [ %82, %81 ], [ %84, %83 ], [ %lpad.loopexit, %.loopexit ], [ %lpad.loopexit.split-lp, %.loopexit.split-lp ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  resume { ptr, i32 } %.pn.pn
}

; 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 #5

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264)) local_unnamed_addr #0 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #5

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_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 #6

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 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

; Function Attrs: mustprogress nofree nounwind willreturn memory(read)
declare i32 @toupper(i32 noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nofree nounwind willreturn memory(read)
declare i32 @isspace(i32 noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nofree nounwind willreturn memory(read)
declare i32 @isalpha(i32 noundef) local_unnamed_addr #3

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

; 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 #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #6

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

!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}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass