; LLVM IR from DionysiosB/CodeForces :: 0700-0799 (723B-TextDocumentAnalysis)

; 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
@.str = external hidden unnamed_addr constant [2 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 %"class.std::__cxx11::basic_string", align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i8, align 1
  %7 = alloca i8, align 1
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #6
  %12 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
  call void @llvm.lifetime.start.p0(i64 32, ptr %3) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %13 = 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) %3)
          to label %14 unwind label %21

14:                                               ; preds = %0
  call void @llvm.lifetime.start.p0(i64 1, ptr %6) #6
  store i8 0, ptr %6, align 1, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %7) #6
  store i8 0, ptr %7, align 1, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #6
  store i32 0, ptr %8, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #6
  store i32 0, ptr %9, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #6
  store i32 0, ptr %10, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #6
  store i32 0, ptr %11, align 4, !tbaa !9
  br label %15

15:                                               ; preds = %138, %14
  %16 = load i32, ptr %11, align 4, !tbaa !9
  %17 = sext i32 %16 to i64
  %18 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %19 = icmp ult i64 %17, %18
  br i1 %19, label %25, label %20

20:                                               ; preds = %15
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  br label %141

21:                                               ; preds = %0
  %22 = landingpad { ptr, i32 }
          cleanup
  %23 = extractvalue { ptr, i32 } %22, 0
  store ptr %23, ptr %4, align 8
  %24 = extractvalue { ptr, i32 } %22, 1
  store i32 %24, ptr %5, align 4
  br label %174

25:                                               ; preds = %15
  %26 = load i32, ptr %11, align 4, !tbaa !9
  %27 = sext i32 %26 to i64
  %28 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %27)
          to label %29 unwind label %49

29:                                               ; preds = %25
  %30 = load i8, ptr %28, align 1, !tbaa !11
  %31 = sext i8 %30 to i32
  %32 = icmp eq i32 %31, 40
  br i1 %32, label %33, label %54

33:                                               ; preds = %29
  %34 = load i8, ptr %7, align 1, !tbaa !5, !range !12, !noundef !13
  %35 = trunc i8 %34 to i1
  %36 = zext i1 %35 to i32
  %37 = icmp eq i32 %36, 1
  br i1 %37, label %38, label %53

38:                                               ; preds = %33
  %39 = load i8, ptr %6, align 1, !tbaa !5, !range !12, !noundef !13
  %40 = trunc i8 %39 to i1
  %41 = zext i1 %40 to i32
  %42 = icmp eq i32 %41, 0
  br i1 %42, label %43, label %53

43:                                               ; preds = %38
  %44 = load i32, ptr %10, align 4, !tbaa !9
  %45 = load i32, ptr %9, align 4, !tbaa !9
  %46 = icmp slt i32 %44, %45
  br i1 %46, label %47, label %53

47:                                               ; preds = %43
  %48 = load i32, ptr %9, align 4, !tbaa !9
  store i32 %48, ptr %10, align 4, !tbaa !9
  br label %53

49:                                               ; preds = %109, %87, %79, %71, %63, %54, %25
  %50 = landingpad { ptr, i32 }
          cleanup
  %51 = extractvalue { ptr, i32 } %50, 0
  store ptr %51, ptr %4, align 8
  %52 = extractvalue { ptr, i32 } %50, 1
  store i32 %52, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  br label %173

53:                                               ; preds = %47, %43, %38, %33
  store i8 1, ptr %6, align 1, !tbaa !5
  store i8 0, ptr %7, align 1, !tbaa !5
  store i32 0, ptr %9, align 4, !tbaa !9
  br label %137

54:                                               ; preds = %29
  %55 = load i32, ptr %11, align 4, !tbaa !9
  %56 = sext i32 %55 to i64
  %57 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %56)
          to label %58 unwind label %49

58:                                               ; preds = %54
  %59 = load i8, ptr %57, align 1, !tbaa !11
  %60 = sext i8 %59 to i32
  %61 = icmp eq i32 %60, 41
  br i1 %61, label %62, label %63

62:                                               ; preds = %58
  store i8 0, ptr %6, align 1, !tbaa !5
  store i8 0, ptr %7, align 1, !tbaa !5
  store i32 0, ptr %9, align 4, !tbaa !9
  br label %136

63:                                               ; preds = %58
  %64 = load i32, ptr %11, align 4, !tbaa !9
  %65 = sext i32 %64 to i64
  %66 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %65)
          to label %67 unwind label %49

67:                                               ; preds = %63
  %68 = load i8, ptr %66, align 1, !tbaa !11
  %69 = sext i8 %68 to i32
  %70 = icmp sle i32 97, %69
  br i1 %70, label %71, label %79

71:                                               ; preds = %67
  %72 = load i32, ptr %11, align 4, !tbaa !9
  %73 = sext i32 %72 to i64
  %74 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %73)
          to label %75 unwind label %49

75:                                               ; preds = %71
  %76 = load i8, ptr %74, align 1, !tbaa !11
  %77 = sext i8 %76 to i32
  %78 = icmp sle i32 %77, 122
  br i1 %78, label %95, label %79

79:                                               ; preds = %75, %67
  %80 = load i32, ptr %11, align 4, !tbaa !9
  %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) %3, i64 noundef %81)
          to label %83 unwind label %49

83:                                               ; preds = %79
  %84 = load i8, ptr %82, align 1, !tbaa !11
  %85 = sext i8 %84 to i32
  %86 = icmp sle i32 65, %85
  br i1 %86, label %87, label %109

87:                                               ; preds = %83
  %88 = load i32, ptr %11, align 4, !tbaa !9
  %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) %3, i64 noundef %89)
          to label %91 unwind label %49

91:                                               ; preds = %87
  %92 = load i8, ptr %90, align 1, !tbaa !11
  %93 = sext i8 %92 to i32
  %94 = icmp sle i32 %93, 90
  br i1 %94, label %95, label %109

95:                                               ; preds = %91, %75
  %96 = load i8, ptr %7, align 1, !tbaa !5, !range !12, !noundef !13
  %97 = trunc i8 %96 to i1
  %98 = zext i1 %97 to i32
  %99 = icmp eq i32 %98, 0
  br i1 %99, label %100, label %106

100:                                              ; preds = %95
  %101 = load i8, ptr %6, align 1, !tbaa !5, !range !12, !noundef !13
  %102 = trunc i8 %101 to i1
  %103 = zext i1 %102 to i32
  %104 = load i32, ptr %8, align 4, !tbaa !9
  %105 = add nsw i32 %104, %103
  store i32 %105, ptr %8, align 4, !tbaa !9
  store i32 0, ptr %9, align 4, !tbaa !9
  br label %106

106:                                              ; preds = %100, %95
  store i8 1, ptr %7, align 1, !tbaa !5
  %107 = load i32, ptr %9, align 4, !tbaa !9
  %108 = add nsw i32 %107, 1
  store i32 %108, ptr %9, align 4, !tbaa !9
  br label %135

109:                                              ; preds = %91, %83
  %110 = load i32, ptr %11, align 4, !tbaa !9
  %111 = sext i32 %110 to i64
  %112 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %111)
          to label %113 unwind label %49

113:                                              ; preds = %109
  %114 = load i8, ptr %112, align 1, !tbaa !11
  %115 = sext i8 %114 to i32
  %116 = icmp eq i32 %115, 95
  br i1 %116, label %117, label %134

117:                                              ; preds = %113
  %118 = load i8, ptr %7, align 1, !tbaa !5, !range !12, !noundef !13
  %119 = trunc i8 %118 to i1
  %120 = zext i1 %119 to i32
  %121 = icmp eq i32 %120, 1
  br i1 %121, label %122, label %133

122:                                              ; preds = %117
  %123 = load i8, ptr %6, align 1, !tbaa !5, !range !12, !noundef !13
  %124 = trunc i8 %123 to i1
  %125 = zext i1 %124 to i32
  %126 = icmp eq i32 %125, 0
  br i1 %126, label %127, label %133

127:                                              ; preds = %122
  %128 = load i32, ptr %10, align 4, !tbaa !9
  %129 = load i32, ptr %9, align 4, !tbaa !9
  %130 = icmp slt i32 %128, %129
  br i1 %130, label %131, label %133

131:                                              ; preds = %127
  %132 = load i32, ptr %9, align 4, !tbaa !9
  store i32 %132, ptr %10, align 4, !tbaa !9
  br label %133

133:                                              ; preds = %131, %127, %122, %117
  store i8 0, ptr %7, align 1, !tbaa !5
  br label %134

134:                                              ; preds = %133, %113
  br label %135

135:                                              ; preds = %134, %106
  br label %136

136:                                              ; preds = %135, %62
  br label %137

137:                                              ; preds = %136, %53
  br label %138

138:                                              ; preds = %137
  %139 = load i32, ptr %11, align 4, !tbaa !9
  %140 = add nsw i32 %139, 1
  store i32 %140, ptr %11, align 4, !tbaa !9
  br label %15, !llvm.loop !14

141:                                              ; preds = %20
  %142 = load i8, ptr %7, align 1, !tbaa !5, !range !12, !noundef !13
  %143 = trunc i8 %142 to i1
  %144 = zext i1 %143 to i32
  %145 = icmp eq i32 %144, 1
  br i1 %145, label %146, label %157

146:                                              ; preds = %141
  %147 = load i8, ptr %6, align 1, !tbaa !5, !range !12, !noundef !13
  %148 = trunc i8 %147 to i1
  %149 = zext i1 %148 to i32
  %150 = icmp eq i32 %149, 0
  br i1 %150, label %151, label %157

151:                                              ; preds = %146
  %152 = load i32, ptr %10, align 4, !tbaa !9
  %153 = load i32, ptr %9, align 4, !tbaa !9
  %154 = icmp slt i32 %152, %153
  br i1 %154, label %155, label %157

155:                                              ; preds = %151
  %156 = load i32, ptr %9, align 4, !tbaa !9
  store i32 %156, ptr %10, align 4, !tbaa !9
  br label %157

157:                                              ; preds = %155, %151, %146, %141
  %158 = load i32, ptr %10, align 4, !tbaa !9
  %159 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %158)
          to label %160 unwind label %169

160:                                              ; preds = %157
  %161 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %159, ptr noundef @.str)
          to label %162 unwind label %169

162:                                              ; preds = %160
  %163 = load i32, ptr %8, align 4, !tbaa !9
  %164 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %161, i32 noundef %163)
          to label %165 unwind label %169

165:                                              ; preds = %162
  %166 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %164, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %167 unwind label %169

167:                                              ; preds = %165
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  %168 = load i32, ptr %1, align 4
  ret i32 %168

169:                                              ; preds = %165, %162, %160, %157
  %170 = landingpad { ptr, i32 }
          cleanup
  %171 = extractvalue { ptr, i32 } %170, 0
  store ptr %171, ptr %4, align 8
  %172 = extractvalue { ptr, i32 } %170, 1
  store i32 %172, ptr %5, align 4
  br label %173

173:                                              ; preds = %169, %49
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #6
  br label %174

174:                                              ; preds = %173, %21
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  br label %175

175:                                              ; preds = %174
  %176 = load ptr, ptr %4, align 8
  %177 = load i32, ptr %5, align 4
  %178 = insertvalue { ptr, i32 } poison, ptr %176, 0
  %179 = insertvalue { ptr, i32 } %178, i32 %177, 1
  resume { ptr, i32 } %179
}

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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #3 align 2

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)) #2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) #3 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) #3 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: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #4

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #5 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)) #4

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #3 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 = { "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 nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { 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 #5 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #6 = { nounwind }

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"bool", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = !{i8 0, i8 2}
!13 = !{}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


; 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
@.str = external hidden unnamed_addr constant [2 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
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #7
  %3 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %2) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #7
  %4 = 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 %.preheader unwind label %13

.preheader:                                       ; preds = %0
  %5 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #7
  %.not = icmp eq i64 %5, 0
  br i1 %.not, label %._crit_edge.thread, label %.lr.ph

._crit_edge:                                      ; preds = %59
  %6 = trunc nuw i8 %.140 to i1
  %7 = and i8 %.142, 1
  %8 = icmp eq i8 %7, 0
  %9 = select i1 %6, i1 %8, i1 false
  %10 = call i32 @llvm.smax.i32(i32 %.3, i32 %.235)
  %cond.fr = freeze i1 %9
  %spec.select = select i1 %cond.fr, i32 %10, i32 %.3
  br label %._crit_edge.thread

._crit_edge.thread:                               ; preds = %._crit_edge, %.preheader
  %.036.lcssa70 = phi i32 [ 0, %.preheader ], [ %.238, %._crit_edge ]
  %11 = phi i32 [ 0, %.preheader ], [ %spec.select, %._crit_edge ]
  %12 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %11)
          to label %62 unwind label %69

13:                                               ; preds = %0
  %14 = landingpad { ptr, i32 }
          cleanup
  br label %71

.lr.ph:                                           ; preds = %.preheader, %59
  %indvars.iv = phi i64 [ %indvars.iv.next, %59 ], [ 0, %.preheader ]
  %.03259 = phi i32 [ %.3, %59 ], [ 0, %.preheader ]
  %.03358 = phi i32 [ %.235, %59 ], [ 0, %.preheader ]
  %.03657 = phi i32 [ %.238, %59 ], [ 0, %.preheader ]
  %.03956 = phi i8 [ %.140, %59 ], [ 0, %.preheader ]
  %.04155 = phi i8 [ %.142, %59 ], [ 0, %.preheader ]
  %15 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %indvars.iv)
  %16 = load i8, ptr %15, align 1, !tbaa !5
  %17 = icmp eq i8 %16, 40
  br i1 %17, label %18, label %23

18:                                               ; preds = %.lr.ph
  %19 = trunc nuw i8 %.03956 to i1
  %20 = and i8 %.04155, 1
  %21 = icmp eq i8 %20, 0
  %or.cond = select i1 %19, i1 %21, i1 false
  %22 = call i32 @llvm.smax.i32(i32 %.03259, i32 %.03358)
  %.1 = select i1 %or.cond, i32 %22, i32 %.03259
  br label %59

23:                                               ; preds = %.lr.ph
  %24 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %indvars.iv)
  %25 = load i8, ptr %24, align 1, !tbaa !5
  %26 = icmp eq i8 %25, 41
  br i1 %26, label %59, label %27

27:                                               ; preds = %23
  %28 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %indvars.iv)
  %29 = load i8, ptr %28, align 1, !tbaa !5
  %30 = icmp sgt i8 %29, 96
  br i1 %30, label %31, label %35

31:                                               ; preds = %27
  %32 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %indvars.iv)
  %33 = load i8, ptr %32, align 1, !tbaa !5
  %34 = icmp slt i8 %33, 123
  br i1 %34, label %43, label %35

35:                                               ; preds = %31, %27
  %36 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %indvars.iv)
  %37 = load i8, ptr %36, align 1, !tbaa !5
  %38 = icmp sgt i8 %37, 64
  br i1 %38, label %39, label %50

39:                                               ; preds = %35
  %40 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %indvars.iv)
  %41 = load i8, ptr %40, align 1, !tbaa !5
  %42 = icmp slt i8 %41, 91
  br i1 %42, label %43, label %50

43:                                               ; preds = %39, %31
  %44 = and i8 %.03956, 1
  %45 = icmp eq i8 %44, 0
  %46 = and i8 %.04155, 1
  %narrow = select i1 %45, i8 %46, i8 0
  %47 = zext nneg i8 %narrow to i32
  %.137 = add nsw i32 %.03657, %47
  %48 = add nsw i32 %.03358, 1
  %49 = select i1 %45, i32 1, i32 %48
  br label %59

50:                                               ; preds = %39, %35
  %51 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %indvars.iv)
  %52 = load i8, ptr %51, align 1, !tbaa !5
  %53 = icmp eq i8 %52, 95
  br i1 %53, label %54, label %59

54:                                               ; preds = %50
  %55 = trunc nuw i8 %.03956 to i1
  %56 = and i8 %.04155, 1
  %57 = icmp eq i8 %56, 0
  %or.cond50 = select i1 %55, i1 %57, i1 false
  %58 = call i32 @llvm.smax.i32(i32 %.03259, i32 %.03358)
  %.2 = select i1 %or.cond50, i32 %58, i32 %.03259
  br label %59

59:                                               ; preds = %23, %18, %43, %54, %50
  %.142 = phi i8 [ 1, %18 ], [ %.04155, %43 ], [ %.04155, %54 ], [ %.04155, %50 ], [ 0, %23 ]
  %.140 = phi i8 [ 0, %18 ], [ 1, %43 ], [ 0, %54 ], [ %.03956, %50 ], [ 0, %23 ]
  %.238 = phi i32 [ %.03657, %18 ], [ %.137, %43 ], [ %.03657, %54 ], [ %.03657, %50 ], [ %.03657, %23 ]
  %.235 = phi i32 [ 0, %18 ], [ %49, %43 ], [ %.03358, %54 ], [ %.03358, %50 ], [ 0, %23 ]
  %.3 = phi i32 [ %.1, %18 ], [ %.03259, %43 ], [ %.2, %54 ], [ %.03259, %50 ], [ %.03259, %23 ]
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %60 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #7
  %61 = icmp ugt i64 %60, %indvars.iv.next
  br i1 %61, label %.lr.ph, label %._crit_edge, !llvm.loop !8

62:                                               ; preds = %._crit_edge.thread
  %63 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %12, ptr noundef nonnull @.str)
          to label %64 unwind label %69

64:                                               ; preds = %62
  %65 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %63, i32 noundef %.036.lcssa70)
          to label %66 unwind label %69

66:                                               ; preds = %64
  %67 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %65, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %68 unwind label %69

68:                                               ; preds = %66
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  ret i32 0

69:                                               ; preds = %66, %64, %62, %._crit_edge.thread
  %70 = landingpad { ptr, i32 }
          cleanup
  br label %71

71:                                               ; preds = %69, %13
  %.pn = phi { ptr, i32 } [ %70, %69 ], [ %14, %13 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  resume { ptr, i32 } %.pn
}

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

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 #2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #3 align 2

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 #2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #3 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 #3 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: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #4

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #2

; 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 #5 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)) #4

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #3 align 2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.smax.i32(i32, i32) #6

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 = { "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 nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { 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 #5 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #6 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #7 = { nounwind }

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

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


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