; LLVM IR from AnneLivia/Competitive-Programming :: Online Judges/URI/2712 (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_ostream" = type { ptr, %"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_istream" = type { ptr, i64, %"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] }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str.5 = external hidden unnamed_addr constant [9 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z4weekc(i8 noundef signext) #0

; 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) #1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #2 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  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 32, ptr %4) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #7
  %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) %2)
          to label %10 unwind label %86

10:                                               ; preds = %0
  %11 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEv(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin)
          to label %12 unwind label %86

12:                                               ; preds = %10
  br label %13

13:                                               ; preds = %140, %12
  %14 = load i32, ptr %2, align 4, !tbaa !5
  %15 = add nsw i32 %14, -1
  store i32 %15, ptr %2, align 4, !tbaa !5
  %16 = icmp ne i32 %14, 0
  br i1 %16, label %17, label %141

17:                                               ; preds = %13
  %18 = 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 %19 unwind label %86

19:                                               ; preds = %17
  store i32 0, ptr %3, align 4, !tbaa !5
  %20 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef 0)
          to label %21 unwind label %86

21:                                               ; preds = %19
  %22 = load i8, ptr %20, align 1, !tbaa !9
  %23 = sext i8 %22 to i32
  %24 = call i32 @isalpha(i32 noundef %23) #8
  %25 = icmp ne i32 %24, 0
  br i1 %25, label %26, label %137

26:                                               ; preds = %21
  %27 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef 0)
          to label %28 unwind label %86

28:                                               ; preds = %26
  %29 = load i8, ptr %27, align 1, !tbaa !9
  %30 = sext i8 %29 to i32
  %31 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef 0)
          to label %32 unwind label %86

32:                                               ; preds = %28
  %33 = load i8, ptr %31, align 1, !tbaa !9
  %34 = sext i8 %33 to i32
  %35 = call i32 @tolower(i32 noundef %34) #8
  %36 = icmp ne i32 %30, %35
  br i1 %36, label %37, label %137

37:                                               ; preds = %32
  %38 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef 1)
          to label %39 unwind label %86

39:                                               ; preds = %37
  %40 = load i8, ptr %38, align 1, !tbaa !9
  %41 = sext i8 %40 to i32
  %42 = call i32 @isalpha(i32 noundef %41) #8
  %43 = icmp ne i32 %42, 0
  br i1 %43, label %44, label %137

44:                                               ; preds = %39
  %45 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef 1)
          to label %46 unwind label %86

46:                                               ; preds = %44
  %47 = load i8, ptr %45, align 1, !tbaa !9
  %48 = sext i8 %47 to i32
  %49 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef 1)
          to label %50 unwind label %86

50:                                               ; preds = %46
  %51 = load i8, ptr %49, align 1, !tbaa !9
  %52 = sext i8 %51 to i32
  %53 = call i32 @tolower(i32 noundef %52) #8
  %54 = icmp ne i32 %48, %53
  br i1 %54, label %55, label %137

55:                                               ; preds = %50
  %56 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef 2)
          to label %57 unwind label %86

57:                                               ; preds = %55
  %58 = load i8, ptr %56, align 1, !tbaa !9
  %59 = sext i8 %58 to i32
  %60 = call i32 @isalpha(i32 noundef %59) #8
  %61 = icmp ne i32 %60, 0
  br i1 %61, label %62, label %137

62:                                               ; preds = %57
  %63 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef 2)
          to label %64 unwind label %86

64:                                               ; preds = %62
  %65 = load i8, ptr %63, align 1, !tbaa !9
  %66 = sext i8 %65 to i32
  %67 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef 2)
          to label %68 unwind label %86

68:                                               ; preds = %64
  %69 = load i8, ptr %67, align 1, !tbaa !9
  %70 = sext i8 %69 to i32
  %71 = call i32 @tolower(i32 noundef %70) #8
  %72 = icmp ne i32 %66, %71
  br i1 %72, label %73, label %137

73:                                               ; preds = %68
  %74 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef 3)
          to label %75 unwind label %86

75:                                               ; preds = %73
  %76 = load i8, ptr %74, align 1, !tbaa !9
  %77 = sext i8 %76 to i32
  %78 = icmp eq i32 %77, 45
  br i1 %78, label %79, label %133

79:                                               ; preds = %75
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #7
  store i32 4, ptr %7, align 4, !tbaa !5
  br label %80

80:                                               ; preds = %117, %79
  %81 = load i32, ptr %7, align 4, !tbaa !5
  %82 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %4) #7
  %83 = trunc i64 %82 to i32
  %84 = icmp slt i32 %81, %83
  br i1 %84, label %90, label %85

85:                                               ; preds = %80
  store i32 4, ptr %8, align 4
  br label %120

86:                                               ; preds = %137, %133, %129, %126, %124, %73, %64, %62, %55, %46, %44, %37, %28, %26, %19, %17, %10, %0
  %87 = landingpad { ptr, i32 }
          cleanup
  %88 = extractvalue { ptr, i32 } %87, 0
  store ptr %88, ptr %5, align 8
  %89 = extractvalue { ptr, i32 } %87, 1
  store i32 %89, ptr %6, align 4
  br label %143

90:                                               ; preds = %80
  %91 = load i32, ptr %7, align 4, !tbaa !5
  %92 = sext i32 %91 to i64
  %93 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %92)
          to label %94 unwind label %111

94:                                               ; preds = %90
  %95 = load i8, ptr %93, align 1, !tbaa !9
  %96 = sext i8 %95 to i32
  %97 = sub nsw i32 %96, 48
  %98 = icmp sge i32 %97, 0
  br i1 %98, label %99, label %115

99:                                               ; preds = %94
  %100 = load i32, ptr %7, align 4, !tbaa !5
  %101 = sext i32 %100 to i64
  %102 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %101)
          to label %103 unwind label %111

103:                                              ; preds = %99
  %104 = load i8, ptr %102, align 1, !tbaa !9
  %105 = sext i8 %104 to i32
  %106 = sub nsw i32 %105, 48
  %107 = icmp sle i32 %106, 9
  br i1 %107, label %108, label %115

108:                                              ; preds = %103
  %109 = load i32, ptr %3, align 4, !tbaa !5
  %110 = add nsw i32 %109, 1
  store i32 %110, ptr %3, align 4, !tbaa !5
  br label %116

111:                                              ; preds = %99, %90
  %112 = landingpad { ptr, i32 }
          cleanup
  %113 = extractvalue { ptr, i32 } %112, 0
  store ptr %113, ptr %5, align 8
  %114 = extractvalue { ptr, i32 } %112, 1
  store i32 %114, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #7
  br label %143

115:                                              ; preds = %103, %94
  store i32 4, ptr %8, align 4
  br label %120

116:                                              ; preds = %108
  br label %117

117:                                              ; preds = %116
  %118 = load i32, ptr %7, align 4, !tbaa !5
  %119 = add nsw i32 %118, 1
  store i32 %119, ptr %7, align 4, !tbaa !5
  br label %80, !llvm.loop !10

120:                                              ; preds = %115, %85
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #7
  br label %121

121:                                              ; preds = %120
  %122 = load i32, ptr %3, align 4, !tbaa !5
  %123 = icmp eq i32 %122, 4
  br i1 %123, label %124, label %129

124:                                              ; preds = %121
  %125 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef 7)
          to label %126 unwind label %86

126:                                              ; preds = %124
  %127 = load i8, ptr %125, align 1, !tbaa !9
  invoke void @_Z4weekc(i8 noundef signext %127)
          to label %128 unwind label %86

128:                                              ; preds = %126
  br label %132

129:                                              ; preds = %121
  %130 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.5)
          to label %131 unwind label %86

131:                                              ; preds = %129
  br label %132

132:                                              ; preds = %131, %128
  br label %136

133:                                              ; preds = %75
  %134 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.5)
          to label %135 unwind label %86

135:                                              ; preds = %133
  br label %136

136:                                              ; preds = %135, %132
  br label %140

137:                                              ; preds = %68, %57, %50, %39, %32, %21
  %138 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.5)
          to label %139 unwind label %86

139:                                              ; preds = %137
  br label %140

140:                                              ; preds = %139, %136
  br label %13, !llvm.loop !12

141:                                              ; preds = %13
  store i32 0, ptr %1, align 4
  store i32 1, ptr %8, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #7
  call void @llvm.lifetime.end.p0(i64 32, 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
  %142 = load i32, ptr %1, align 4
  ret i32 %142

143:                                              ; preds = %111, %86
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #7
  call void @llvm.lifetime.end.p0(i64 32, 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 %144

144:                                              ; preds = %143
  %145 = load ptr, ptr %5, align 8
  %146 = load i32, ptr %6, align 4
  %147 = insertvalue { ptr, i32 } poison, ptr %145, 0
  %148 = insertvalue { ptr, i32 } %147, i32 %146, 1
  resume { ptr, i32 } %148
}

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

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #4 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(...)

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)) #1

; Function Attrs: nounwind willreturn memory(read)
declare i32 @isalpha(i32 noundef) #6

; 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) #4 align 2

; Function Attrs: nounwind willreturn memory(read)
declare i32 @tolower(i32 noundef) #6

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

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

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #4 align 2

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 = { 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 #2 = { 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 #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { "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 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}
!12 = distinct !{!12, !11}


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

%"class.std::basic_ostream" = type { ptr, %"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_istream" = type { ptr, i64, %"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] }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str.5 = external hidden unnamed_addr constant [9 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z4weekc(i8 noundef signext) local_unnamed_addr #0

; 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 #1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #2 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
  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
  %3 = 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 %4 unwind label %.loopexit.split-lp

4:                                                ; preds = %0
  %5 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEv(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin)
          to label %.preheader15 unwind label %.loopexit.split-lp

.preheader15:                                     ; preds = %4
  %6 = load i32, ptr %1, align 4, !tbaa !5
  %7 = add nsw i32 %6, -1
  store i32 %7, ptr %1, align 4, !tbaa !5
  %.not22 = icmp eq i32 %6, 0
  br i1 %.not22, label %._crit_edge24, label %.lr.ph23

.lr.ph23:                                         ; preds = %.preheader15, %73
  %8 = 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) %2)
          to label %9 unwind label %.loopexit

9:                                                ; preds = %.lr.ph23
  %10 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 0)
  %11 = load i8, ptr %10, align 1, !tbaa !9
  %12 = sext i8 %11 to i32
  %13 = call i32 @isalpha(i32 noundef %12) #8
  %.not9 = icmp eq i32 %13, 0
  br i1 %.not9, label %._crit_edge.thread.invoke, label %14

14:                                               ; preds = %9
  %15 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 0)
  %16 = load i8, ptr %15, align 1, !tbaa !9
  %17 = sext i8 %16 to i32
  %18 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 0)
  %19 = load i8, ptr %18, align 1, !tbaa !9
  %20 = sext i8 %19 to i32
  %21 = call i32 @tolower(i32 noundef %20) #8
  %.not10 = icmp eq i32 %21, %17
  br i1 %.not10, label %._crit_edge.thread.invoke, label %22

22:                                               ; preds = %14
  %23 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 1)
  %24 = load i8, ptr %23, align 1, !tbaa !9
  %25 = sext i8 %24 to i32
  %26 = call i32 @isalpha(i32 noundef %25) #8
  %.not11 = icmp eq i32 %26, 0
  br i1 %.not11, label %._crit_edge.thread.invoke, label %27

27:                                               ; preds = %22
  %28 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 1)
  %29 = load i8, ptr %28, align 1, !tbaa !9
  %30 = sext i8 %29 to i32
  %31 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 1)
  %32 = load i8, ptr %31, align 1, !tbaa !9
  %33 = sext i8 %32 to i32
  %34 = call i32 @tolower(i32 noundef %33) #8
  %.not12 = icmp eq i32 %34, %30
  br i1 %.not12, label %._crit_edge.thread.invoke, label %35

35:                                               ; preds = %27
  %36 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 2)
  %37 = load i8, ptr %36, align 1, !tbaa !9
  %38 = sext i8 %37 to i32
  %39 = call i32 @isalpha(i32 noundef %38) #8
  %.not13 = icmp eq i32 %39, 0
  br i1 %.not13, label %._crit_edge.thread.invoke, label %40

40:                                               ; preds = %35
  %41 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 2)
  %42 = load i8, ptr %41, align 1, !tbaa !9
  %43 = sext i8 %42 to i32
  %44 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 2)
  %45 = load i8, ptr %44, align 1, !tbaa !9
  %46 = sext i8 %45 to i32
  %47 = call i32 @tolower(i32 noundef %46) #8
  %.not14 = icmp eq i32 %47, %43
  br i1 %.not14, label %._crit_edge.thread.invoke, label %48

48:                                               ; preds = %40
  %49 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 3)
  %50 = load i8, ptr %49, align 1, !tbaa !9
  %51 = icmp eq i8 %50, 45
  br i1 %51, label %.preheader, label %._crit_edge.thread.invoke

.preheader:                                       ; preds = %48
  %52 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #7
  %53 = trunc i64 %52 to i32
  %54 = icmp sgt i32 %53, 4
  br i1 %54, label %.lr.ph, label %._crit_edge.thread.invoke

.loopexit:                                        ; preds = %._crit_edge.thread.invoke, %.lr.ph23, %69
  %lpad.loopexit = landingpad { ptr, i32 }
          cleanup
  br label %55

.loopexit.split-lp:                               ; preds = %0, %4
  %lpad.loopexit.split-lp = landingpad { ptr, i32 }
          cleanup
  br label %55

55:                                               ; preds = %.loopexit.split-lp, %.loopexit
  %lpad.phi = phi { ptr, i32 } [ %lpad.loopexit, %.loopexit ], [ %lpad.loopexit.split-lp, %.loopexit.split-lp ]
  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 } %lpad.phi

.lr.ph:                                           ; preds = %.preheader, %63
  %indvars.iv = phi i64 [ %indvars.iv.next, %63 ], [ 4, %.preheader ]
  %.0816 = phi i32 [ %64, %63 ], [ 0, %.preheader ]
  %56 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %indvars.iv)
  %57 = load i8, ptr %56, align 1, !tbaa !9
  %58 = icmp sgt i8 %57, 47
  br i1 %58, label %59, label %._crit_edge

59:                                               ; preds = %.lr.ph
  %60 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %indvars.iv)
  %61 = load i8, ptr %60, align 1, !tbaa !9
  %62 = icmp slt i8 %61, 58
  br i1 %62, label %63, label %._crit_edge

63:                                               ; preds = %59
  %64 = add nuw nsw i32 %.0816, 1
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %65 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #7
  %sext = shl i64 %65, 32
  %66 = ashr exact i64 %sext, 32
  %67 = icmp slt i64 %indvars.iv.next, %66
  br i1 %67, label %.lr.ph, label %._crit_edge, !llvm.loop !10

._crit_edge:                                      ; preds = %63, %59, %.lr.ph
  %.08.lcssa = phi i32 [ %64, %63 ], [ %.0816, %59 ], [ %.0816, %.lr.ph ]
  %68 = icmp eq i32 %.08.lcssa, 4
  br i1 %68, label %69, label %._crit_edge.thread.invoke

69:                                               ; preds = %._crit_edge
  %70 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 7)
  %71 = load i8, ptr %70, align 1, !tbaa !9
  invoke void @_Z4weekc(i8 noundef signext %71)
          to label %73 unwind label %.loopexit

._crit_edge.thread.invoke:                        ; preds = %9, %14, %22, %27, %35, %40, %48, %._crit_edge, %.preheader
  %72 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.5)
          to label %73 unwind label %.loopexit

73:                                               ; preds = %._crit_edge.thread.invoke, %69
  %74 = load i32, ptr %1, align 4, !tbaa !5
  %75 = add nsw i32 %74, -1
  store i32 %75, ptr %1, align 4, !tbaa !5
  %.not = icmp eq i32 %74, 0
  br i1 %.not, label %._crit_edge24, label %.lr.ph23, !llvm.loop !12

._crit_edge24:                                    ; preds = %73, %.preheader15
  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
}

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

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #4 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(...)

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 #1

; Function Attrs: mustprogress nofree nounwind willreturn memory(read)
declare i32 @isalpha(i32 noundef) local_unnamed_addr #6

; 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 #4 align 2

; Function Attrs: mustprogress nofree nounwind willreturn memory(read)
declare i32 @tolower(i32 noundef) local_unnamed_addr #6

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

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

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #4 align 2

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 = { 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 #2 = { 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 #3 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { "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 = { 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}
!12 = distinct !{!12, !11}


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