; LLVM IR from Izaron/ACM-ICPC :: Timus Online Judge/Volume 2/1123. Salary (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: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) #1 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) #1 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_Z5biggaNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_(ptr noundef, ptr noundef) #2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #3 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i8, align 1
  %9 = alloca i32, align 4
  %10 = alloca %"class.std::__cxx11::basic_string", align 8
  %11 = alloca %"class.std::__cxx11::basic_string", align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 32, ptr %2) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %12 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %13 unwind label %23

13:                                               ; preds = %0
  call void @llvm.lifetime.start.p0(i64 32, ptr %5) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %14 unwind label %27

14:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #6
  %15 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %16 = sub i64 %15, 1
  %17 = udiv i64 %16, 2
  %18 = trunc i64 %17 to i32
  store i32 %18, ptr %6, align 4, !tbaa !5
  br label %19

19:                                               ; preds = %118, %14
  %20 = load i32, ptr %6, align 4, !tbaa !5
  %21 = icmp sge i32 %20, 0
  br i1 %21, label %31, label %22

22:                                               ; preds = %19
  store i32 2, ptr %7, align 4
  br label %121

23:                                               ; preds = %0
  %24 = landingpad { ptr, i32 }
          cleanup
  %25 = extractvalue { ptr, i32 } %24, 0
  store ptr %25, ptr %3, align 8
  %26 = extractvalue { ptr, i32 } %24, 1
  store i32 %26, ptr %4, align 4
  br label %129

27:                                               ; preds = %13
  %28 = landingpad { ptr, i32 }
          cleanup
  %29 = extractvalue { ptr, i32 } %28, 0
  store ptr %29, ptr %3, align 8
  %30 = extractvalue { ptr, i32 } %28, 1
  store i32 %30, ptr %4, align 4
  br label %128

31:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 1, ptr %8) #6
  %32 = load i32, ptr %6, align 4, !tbaa !5
  %33 = sext i32 %32 to i64
  %34 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %33)
          to label %35 unwind label %42

35:                                               ; preds = %31
  %36 = load i8, ptr %34, align 1, !tbaa !9
  store i8 %36, ptr %8, align 1, !tbaa !9
  br label %37

37:                                               ; preds = %111, %35
  %38 = load i8, ptr %8, align 1, !tbaa !9
  %39 = sext i8 %38 to i32
  %40 = icmp sle i32 %39, 57
  br i1 %40, label %46, label %41

41:                                               ; preds = %37
  store i32 5, ptr %7, align 4
  br label %114

42:                                               ; preds = %98, %93, %46, %31
  %43 = landingpad { ptr, i32 }
          cleanup
  %44 = extractvalue { ptr, i32 } %43, 0
  store ptr %44, ptr %3, align 8
  %45 = extractvalue { ptr, i32 } %43, 1
  store i32 %45, ptr %4, align 4
  br label %116

46:                                               ; preds = %37
  %47 = load i8, ptr %8, align 1, !tbaa !9
  %48 = load i32, ptr %6, align 4, !tbaa !5
  %49 = sext i32 %48 to i64
  %50 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %49)
          to label %51 unwind label %42

51:                                               ; preds = %46
  store i8 %47, ptr %50, align 1, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #6
  %52 = load i32, ptr %6, align 4, !tbaa !5
  %53 = add nsw i32 %52, 1
  store i32 %53, ptr %9, align 4, !tbaa !5
  br label %54

54:                                               ; preds = %90, %51
  %55 = load i32, ptr %9, align 4, !tbaa !5
  %56 = sext i32 %55 to i64
  %57 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %58 = icmp ult i64 %56, %57
  br i1 %58, label %60, label %59

59:                                               ; preds = %54
  store i32 8, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #6
  br label %93

60:                                               ; preds = %54
  %61 = load i32, ptr %9, align 4, !tbaa !5
  %62 = sext i32 %61 to i64
  %63 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %64 = sub i64 %63, 1
  %65 = udiv i64 %64, 2
  %66 = icmp ule i64 %62, %65
  br i1 %66, label %67, label %76

67:                                               ; preds = %60
  %68 = load i32, ptr %9, align 4, !tbaa !5
  %69 = sext i32 %68 to i64
  %70 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %69)
          to label %71 unwind label %72

71:                                               ; preds = %67
  store i8 48, ptr %70, align 1, !tbaa !9
  br label %89

72:                                               ; preds = %83, %76, %67
  %73 = landingpad { ptr, i32 }
          cleanup
  %74 = extractvalue { ptr, i32 } %73, 0
  store ptr %74, ptr %3, align 8
  %75 = extractvalue { ptr, i32 } %73, 1
  store i32 %75, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #6
  br label %116

76:                                               ; preds = %60
  %77 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %78 = load i32, ptr %9, align 4, !tbaa !5
  %79 = sext i32 %78 to i64
  %80 = sub i64 %77, %79
  %81 = sub i64 %80, 1
  %82 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %81)
          to label %83 unwind label %72

83:                                               ; preds = %76
  %84 = load i8, ptr %82, align 1, !tbaa !9
  %85 = load i32, ptr %9, align 4, !tbaa !5
  %86 = sext i32 %85 to i64
  %87 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %86)
          to label %88 unwind label %72

88:                                               ; preds = %83
  store i8 %84, ptr %87, align 1, !tbaa !9
  br label %89

89:                                               ; preds = %88, %71
  br label %90

90:                                               ; preds = %89
  %91 = load i32, ptr %9, align 4, !tbaa !5
  %92 = add nsw i32 %91, 1
  store i32 %92, ptr %9, align 4, !tbaa !5
  br label %54, !llvm.loop !10

93:                                               ; preds = %59
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %10, ptr noundef nonnull align 8 dereferenceable(32) %5)
          to label %94 unwind label %42

94:                                               ; preds = %93
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %11, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %95 unwind label %101

95:                                               ; preds = %94
  %96 = invoke noundef zeroext i1 @_Z5biggaNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_(ptr noundef %10, ptr noundef %11)
          to label %97 unwind label %105

97:                                               ; preds = %95
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #6
  br i1 %96, label %98, label %110

98:                                               ; preds = %97
  %99 = 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) %2)
          to label %100 unwind label %42

100:                                              ; preds = %98
  store i32 0, ptr %1, align 4
  store i32 1, ptr %7, align 4
  br label %114

101:                                              ; preds = %94
  %102 = landingpad { ptr, i32 }
          cleanup
  %103 = extractvalue { ptr, i32 } %102, 0
  store ptr %103, ptr %3, align 8
  %104 = extractvalue { ptr, i32 } %102, 1
  store i32 %104, ptr %4, align 4
  br label %109

105:                                              ; preds = %95
  %106 = landingpad { ptr, i32 }
          cleanup
  %107 = extractvalue { ptr, i32 } %106, 0
  store ptr %107, ptr %3, align 8
  %108 = extractvalue { ptr, i32 } %106, 1
  store i32 %108, ptr %4, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #6
  br label %109

109:                                              ; preds = %105, %101
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #6
  br label %116

110:                                              ; preds = %97
  br label %111

111:                                              ; preds = %110
  %112 = load i8, ptr %8, align 1, !tbaa !9
  %113 = add i8 %112, 1
  store i8 %113, ptr %8, align 1, !tbaa !9
  br label %37, !llvm.loop !12

114:                                              ; preds = %100, %41
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #6
  %115 = load i32, ptr %7, align 4
  switch i32 %115, label %121 [
    i32 5, label %117
  ]

116:                                              ; preds = %109, %72, %42
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #6
  br label %128

117:                                              ; preds = %114
  br label %118

118:                                              ; preds = %117
  %119 = load i32, ptr %6, align 4, !tbaa !5
  %120 = add nsw i32 %119, -1
  store i32 %120, ptr %6, align 4, !tbaa !5
  br label %19, !llvm.loop !13

121:                                              ; preds = %114, %22
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #6
  %122 = load i32, ptr %7, align 4
  switch i32 %122, label %124 [
    i32 2, label %123
  ]

123:                                              ; preds = %121
  store i32 0, ptr %7, align 4
  br label %124

124:                                              ; preds = %123, %121
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %5) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #6
  %125 = load i32, ptr %7, align 4
  switch i32 %125, label %135 [
    i32 0, label %126
    i32 1, label %126
  ]

126:                                              ; preds = %124, %124
  %127 = load i32, ptr %1, align 4
  ret i32 %127

128:                                              ; preds = %116, %27
  call void @llvm.lifetime.end.p0(i64 32, ptr %5) #6
  br label %129

129:                                              ; preds = %128, %23
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #6
  br label %130

130:                                              ; preds = %129
  %131 = load ptr, ptr %3, align 8
  %132 = load i32, ptr %4, align 4
  %133 = insertvalue { ptr, i32 } poison, ptr %131, 0
  %134 = insertvalue { ptr, i32 } %133, i32 %132, 1
  resume { ptr, i32 } %134

135:                                              ; preds = %124
  unreachable
}

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 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)) #4

declare i32 @__gxx_personality_v0(...)

; 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 #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; 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)) #5

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress 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 #4 = { "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 = { 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 #6 = { nounwind }

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

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


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

%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1 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 #1 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_Z5biggaNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_(ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #3 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::__cxx11::basic_string", align 8
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  %3 = alloca %"class.std::__cxx11::basic_string", align 8
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %1) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %5 = 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) %1)
          to label %6 unwind label %16

6:                                                ; preds = %0
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %2) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %2, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %7 unwind label %18

7:                                                ; preds = %6
  %8 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %9 = add i64 %8, 8589934591
  %10 = and i64 %9, 4294967296
  %11 = icmp eq i64 %10, 0
  br i1 %11, label %.lr.ph45.preheader, label %.loopexit37

.lr.ph45.preheader:                               ; preds = %7
  %12 = lshr i64 %9, 1
  %13 = add nuw nsw i64 %12, 1
  %14 = and i64 %13, 4294967295
  %15 = and i64 %12, 2147483647
  br label %.lr.ph45

16:                                               ; preds = %0
  %17 = landingpad { ptr, i32 }
          cleanup
  br label %57

18:                                               ; preds = %6
  %19 = landingpad { ptr, i32 }
          cleanup
  br label %56

.lr.ph45:                                         ; preds = %.lr.ph45.preheader, %.critedge
  %indvars.iv49 = phi i64 [ %15, %.lr.ph45.preheader ], [ %indvars.iv.next50, %.critedge ]
  %indvars.iv = phi i64 [ %14, %.lr.ph45.preheader ], [ %indvars.iv.next, %.critedge ]
  %20 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %indvars.iv49)
  %21 = load i8, ptr %20, align 1, !tbaa !5
  %22 = icmp sgt i8 %21, 57
  br i1 %22, label %.critedge, label %.lr.ph42

.lr.ph42:                                         ; preds = %.lr.ph45
  %23 = add nuw nsw i64 %indvars.iv49, 1
  br label %26

24:                                               ; preds = %46
  %25 = add nsw i8 %.01940, 1
  %exitcond = icmp eq i8 %25, 58
  br i1 %exitcond, label %.critedge, label %26, !llvm.loop !8

.loopexit:                                        ; preds = %._crit_edge
  %lpad.loopexit = landingpad { ptr, i32 }
          cleanup
  br label %54

.loopexit.split-lp:                               ; preds = %47
  %lpad.loopexit.split-lp = landingpad { ptr, i32 }
          cleanup
  br label %54

26:                                               ; preds = %.lr.ph42, %24
  %.01940 = phi i8 [ %21, %.lr.ph42 ], [ %25, %24 ]
  %27 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %indvars.iv49)
  store i8 %.01940, ptr %27, align 1, !tbaa !5
  %28 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %29 = icmp ugt i64 %28, %23
  br i1 %29, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %39, %26
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %3, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %43 unwind label %.loopexit

.lr.ph:                                           ; preds = %26, %39
  %indvars.iv46 = phi i64 [ %indvars.iv.next47, %39 ], [ %indvars.iv, %26 ]
  %30 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %31 = add i64 %30, -1
  %32 = lshr i64 %31, 1
  %.not = icmp ult i64 %32, %indvars.iv46
  br i1 %.not, label %33, label %39

33:                                               ; preds = %.lr.ph
  %34 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %35 = xor i64 %indvars.iv46, -1
  %36 = add i64 %34, %35
  %37 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %36)
  %38 = load i8, ptr %37, align 1, !tbaa !5
  br label %39

39:                                               ; preds = %.lr.ph, %33
  %.sink = phi i8 [ %38, %33 ], [ 48, %.lr.ph ]
  %40 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %indvars.iv46)
  store i8 %.sink, ptr %40, align 1, !tbaa !5
  %indvars.iv.next47 = add nuw nsw i64 %indvars.iv46, 1
  %41 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %42 = icmp ugt i64 %41, %indvars.iv.next47
  br i1 %42, label %.lr.ph, label %._crit_edge, !llvm.loop !10

43:                                               ; preds = %._crit_edge
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %44 unwind label %49

44:                                               ; preds = %43
  %45 = invoke noundef zeroext i1 @_Z5biggaNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_(ptr noundef nonnull %3, ptr noundef nonnull %4)
          to label %46 unwind label %51

46:                                               ; preds = %44
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  br i1 %45, label %47, label %24

47:                                               ; preds = %46
  %48 = 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) %1)
          to label %.loopexit37 unwind label %.loopexit.split-lp

49:                                               ; preds = %43
  %50 = landingpad { ptr, i32 }
          cleanup
  br label %53

51:                                               ; preds = %44
  %52 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #6
  br label %53

53:                                               ; preds = %51, %49
  %.pn = phi { ptr, i32 } [ %52, %51 ], [ %50, %49 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  br label %54

54:                                               ; preds = %.loopexit, %.loopexit.split-lp, %53
  %.pn33 = phi { ptr, i32 } [ %.pn, %53 ], [ %lpad.loopexit, %.loopexit ], [ %lpad.loopexit.split-lp, %.loopexit.split-lp ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  br label %56

.critedge:                                        ; preds = %24, %.lr.ph45
  %indvars.iv.next50 = add nsw i64 %indvars.iv49, -1
  %55 = icmp sgt i64 %indvars.iv49, 0
  %indvars.iv.next = add nsw i64 %indvars.iv, -1
  br i1 %55, label %.lr.ph45, label %.loopexit37, !llvm.loop !11

.loopexit37:                                      ; preds = %.critedge, %7, %47
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #6
  ret i32 0

56:                                               ; preds = %54, %18
  %.pn33.pn = phi { ptr, i32 } [ %.pn33, %54 ], [ %19, %18 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #6
  br label %57

57:                                               ; preds = %56, %16
  %.pn33.pn.pn = phi { ptr, i32 } [ %.pn33.pn, %56 ], [ %17, %16 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn33.pn.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 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 #4

declare i32 @__gxx_personality_v0(...)

; 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 #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; 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 #5

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress 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 #4 = { "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 = { 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 #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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}
!10 = distinct !{!10, !9}
!11 = distinct !{!11, !9}


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