; LLVM IR from forestLoop/Learning-ITMO-Academy-Pilot-Course :: binary-search (2-F)

; 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] }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator.0" = type { i8 }
%class.anon = type { i32, ptr, ptr, ptr }

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  %3 = alloca %"class.std::__cxx11::basic_string", align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::vector", align 8
  %8 = alloca %"class.std::allocator.0", align 1
  %9 = alloca i32, align 4
  %10 = alloca %class.anon, align 8
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %14 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %15 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %16 = getelementptr i8, ptr %15, i64 -24
  %17 = load i64, ptr %16, align 8
  %18 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %17
  %19 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %18, ptr noundef null)
  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
  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
  br label %20

20:                                               ; preds = %104, %0
  %21 = 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 %22 unwind label %42

22:                                               ; preds = %20
  %23 = 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) %21, ptr noundef nonnull align 8 dereferenceable(32) %3)
          to label %24 unwind label %42

24:                                               ; preds = %22
  %25 = load ptr, ptr %23, align 8, !tbaa !5
  %26 = getelementptr i8, ptr %25, i64 -24
  %27 = load i64, ptr %26, align 8
  %28 = getelementptr inbounds i8, ptr %23, i64 %27
  %29 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %28)
          to label %30 unwind label %42

30:                                               ; preds = %24
  br i1 %29, label %31, label %112

31:                                               ; preds = %30
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #6
  %32 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %33 = trunc i64 %32 to i32
  store i32 %33, ptr %6, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 24, ptr %7) #6
  %34 = load i32, ptr %6, align 4, !tbaa !8
  %35 = sext i32 %34 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr %8) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %35, ptr noundef nonnull align 1 dereferenceable(1) %8)
          to label %36 unwind label %46

36:                                               ; preds = %31
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #6
  store i32 0, ptr %9, align 4, !tbaa !8
  br label %37

37:                                               ; preds = %56, %36
  %38 = load i32, ptr %9, align 4, !tbaa !8
  %39 = load i32, ptr %6, align 4, !tbaa !8
  %40 = icmp slt i32 %38, %39
  br i1 %40, label %50, label %41

41:                                               ; preds = %37
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #6
  br label %63

42:                                               ; preds = %24, %22, %20
  %43 = landingpad { ptr, i32 }
          cleanup
  %44 = extractvalue { ptr, i32 } %43, 0
  store ptr %44, ptr %4, align 8
  %45 = extractvalue { ptr, i32 } %43, 1
  store i32 %45, ptr %5, align 4
  br label %114

46:                                               ; preds = %31
  %47 = landingpad { ptr, i32 }
          cleanup
  %48 = extractvalue { ptr, i32 } %47, 0
  store ptr %48, ptr %4, align 8
  %49 = extractvalue { ptr, i32 } %47, 1
  store i32 %49, ptr %5, align 4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #6
  br label %111

50:                                               ; preds = %37
  %51 = load i32, ptr %9, align 4, !tbaa !8
  %52 = sext i32 %51 to i64
  %53 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %52) #6
  %54 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %53)
          to label %55 unwind label %59

55:                                               ; preds = %50
  br label %56

56:                                               ; preds = %55
  %57 = load i32, ptr %9, align 4, !tbaa !8
  %58 = add nsw i32 %57, 1
  store i32 %58, ptr %9, align 4, !tbaa !8
  br label %37, !llvm.loop !11

59:                                               ; preds = %50
  %60 = landingpad { ptr, i32 }
          cleanup
  %61 = extractvalue { ptr, i32 } %60, 0
  store ptr %61, ptr %4, align 8
  %62 = extractvalue { ptr, i32 } %60, 1
  store i32 %62, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #6
  br label %110

63:                                               ; preds = %41
  call void @llvm.lifetime.start.p0(i64 32, ptr %10) #6
  %64 = getelementptr inbounds %class.anon, ptr %10, i32 0, i32 0
  %65 = load i32, ptr %6, align 4, !tbaa !8
  store i32 %65, ptr %64, align 8, !tbaa !13
  %66 = getelementptr inbounds %class.anon, ptr %10, i32 0, i32 1
  store ptr %2, ptr %66, align 8, !tbaa !16
  %67 = getelementptr inbounds %class.anon, ptr %10, i32 0, i32 2
  store ptr %3, ptr %67, align 8, !tbaa !16
  %68 = getelementptr inbounds %class.anon, ptr %10, i32 0, i32 3
  store ptr %7, ptr %68, align 8, !tbaa !16
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #6
  store i32 0, ptr %11, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #6
  %69 = load i32, ptr %6, align 4, !tbaa !8
  %70 = sext i32 %69 to i64
  %71 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  %72 = sub i64 %70, %71
  %73 = add i64 %72, 1
  %74 = trunc i64 %73 to i32
  store i32 %74, ptr %12, align 4, !tbaa !8
  br label %75

75:                                               ; preds = %98, %63
  %76 = load i32, ptr %11, align 4, !tbaa !8
  %77 = add nsw i32 %76, 1
  %78 = load i32, ptr %12, align 4, !tbaa !8
  %79 = icmp slt i32 %77, %78
  br i1 %79, label %80, label %99

80:                                               ; preds = %75
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #6
  %81 = load i32, ptr %11, align 4, !tbaa !8
  %82 = load i32, ptr %12, align 4, !tbaa !8
  %83 = load i32, ptr %11, align 4, !tbaa !8
  %84 = sub nsw i32 %82, %83
  %85 = sdiv i32 %84, 2
  %86 = add nsw i32 %81, %85
  store i32 %86, ptr %13, align 4, !tbaa !8
  %87 = load i32, ptr %13, align 4, !tbaa !8
  %88 = invoke noundef zeroext i1 @"_ZZ4mainENK3$_0clEi"(ptr noundef nonnull align 8 dereferenceable(32) %10, i32 noundef %87)
          to label %89 unwind label %92

89:                                               ; preds = %80
  br i1 %88, label %90, label %96

90:                                               ; preds = %89
  %91 = load i32, ptr %13, align 4, !tbaa !8
  store i32 %91, ptr %11, align 4, !tbaa !8
  br label %98

92:                                               ; preds = %80
  %93 = landingpad { ptr, i32 }
          cleanup
  %94 = extractvalue { ptr, i32 } %93, 0
  store ptr %94, ptr %4, align 8
  %95 = extractvalue { ptr, i32 } %93, 1
  store i32 %95, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #6
  br label %109

96:                                               ; preds = %89
  %97 = load i32, ptr %13, align 4, !tbaa !8
  store i32 %97, ptr %12, align 4, !tbaa !8
  br label %98

98:                                               ; preds = %96, %90
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #6
  br label %75, !llvm.loop !17

99:                                               ; preds = %75
  %100 = load i32, ptr %11, align 4, !tbaa !8
  %101 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %100)
          to label %102 unwind label %105

102:                                              ; preds = %99
  %103 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %101, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %104 unwind label %105

104:                                              ; preds = %102
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %10) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #6
  br label %20, !llvm.loop !18

105:                                              ; preds = %102, %99
  %106 = landingpad { ptr, i32 }
          cleanup
  %107 = extractvalue { ptr, i32 } %106, 0
  store ptr %107, ptr %4, align 8
  %108 = extractvalue { ptr, i32 } %106, 1
  store i32 %108, ptr %5, align 4
  br label %109

109:                                              ; preds = %105, %92
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %10) #6
  br label %110

110:                                              ; preds = %109, %59
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #6
  br label %111

111:                                              ; preds = %110, %46
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #6
  br label %114

112:                                              ; preds = %30
  store i32 0, ptr %1, align 4
  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 @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #6
  %113 = load i32, ptr %1, align 4
  ret i32 %113

114:                                              ; preds = %111, %42
  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 @_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 %115

115:                                              ; preds = %114
  %116 = load ptr, ptr %4, align 8
  %117 = load i32, ptr %5, align 4
  %118 = insertvalue { ptr, i32 } poison, ptr %116, 0
  %119 = insertvalue { ptr, i32 } %118, i32 %117, 1
  resume { ptr, i32 } %119
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #1

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) #2 align 2

; 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 #2 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)) #1

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264)) #4 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare hidden noundef zeroext i1 @"_ZZ4mainENK3$_0clEi"(ptr noundef nonnull align 8 dereferenceable(32), i32 noundef) #5 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #1

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { "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 nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !9, i64 0}
!14 = !{!"_ZTSZ4mainE3$_0", !9, i64 0, !15, i64 8, !15, i64 16, !15, i64 24}
!15 = !{!"any pointer", !10, i64 0}
!16 = !{!15, !15, i64 0}
!17 = distinct !{!17, !12}
!18 = distinct !{!18, !12}


; 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] }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator.0" = type { i8 }
%class.anon = type { i32, ptr, ptr, ptr }

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 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::vector", align 8
  %4 = alloca %"class.std::allocator.0", align 1
  %5 = alloca %class.anon, align 8
  %6 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %7 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %8 = getelementptr i8, ptr %7, i64 -24
  %9 = load i64, ptr %8, align 8
  %10 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %9
  %11 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %10, ptr noundef null)
  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
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %2) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %12 = getelementptr inbounds i8, ptr %5, i64 8
  %13 = getelementptr inbounds i8, ptr %5, i64 16
  %14 = getelementptr inbounds i8, ptr %5, i64 24
  br label %15

15:                                               ; preds = %58, %0
  %16 = 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 %17 unwind label %37

17:                                               ; preds = %15
  %18 = 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) %16, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %19 unwind label %37

19:                                               ; preds = %17
  %20 = load ptr, ptr %18, align 8, !tbaa !5
  %21 = getelementptr i8, ptr %20, i64 -24
  %22 = load i64, ptr %21, align 8
  %23 = getelementptr inbounds i8, ptr %18, i64 %22
  %24 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %23)
          to label %25 unwind label %37

25:                                               ; preds = %19
  br i1 %24, label %26, label %64

26:                                               ; preds = %25
  %27 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %28 = trunc i64 %27 to i32
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #6
  %sext = shl i64 %27, 32
  %29 = ashr exact i64 %sext, 32
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %4) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %29, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %30 unwind label %39

30:                                               ; preds = %26
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #6
  %31 = icmp sgt i32 %28, 0
  br i1 %31, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %30
  %wide.trip.count = and i64 %27, 2147483647
  br label %.lr.ph

._crit_edge:                                      ; preds = %43, %30
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %5) #6
  store i32 %28, ptr %5, align 8, !tbaa !8
  store ptr %1, ptr %12, align 8, !tbaa !13
  store ptr %2, ptr %13, align 8, !tbaa !13
  store ptr %3, ptr %14, align 8, !tbaa !13
  %32 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  %33 = sub i64 %27, %32
  %34 = trunc i64 %33 to i32
  %35 = add i32 %34, 1
  %36 = icmp sgt i32 %35, 1
  br i1 %36, label %.lr.ph38, label %._crit_edge39

37:                                               ; preds = %19, %17, %15
  %38 = landingpad { ptr, i32 }
          cleanup
  br label %65

39:                                               ; preds = %26
  %40 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #6
  br label %63

.lr.ph:                                           ; preds = %.lr.ph.preheader, %43
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %43 ]
  %41 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %indvars.iv) #6
  %42 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %41)
          to label %43 unwind label %44

43:                                               ; preds = %.lr.ph
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !14

44:                                               ; preds = %.lr.ph
  %45 = landingpad { ptr, i32 }
          cleanup
  br label %62

.lr.ph38:                                         ; preds = %._crit_edge, %50
  %.036 = phi i32 [ %.0., %50 ], [ %35, %._crit_edge ]
  %.01835 = phi i32 [ %..018, %50 ], [ 0, %._crit_edge ]
  %46 = sub nsw i32 %.036, %.01835
  %47 = sdiv i32 %46, 2
  %48 = add nsw i32 %47, %.01835
  %49 = invoke noundef zeroext i1 @"_ZZ4mainENK3$_0clEi"(ptr noundef nonnull align 8 dereferenceable(32) %5, i32 noundef %48)
          to label %50 unwind label %53

50:                                               ; preds = %.lr.ph38
  %..018 = select i1 %49, i32 %48, i32 %.01835
  %.0. = select i1 %49, i32 %.036, i32 %48
  %51 = add nsw i32 %..018, 1
  %52 = icmp slt i32 %51, %.0.
  br i1 %52, label %.lr.ph38, label %._crit_edge39, !llvm.loop !16

53:                                               ; preds = %.lr.ph38
  %54 = landingpad { ptr, i32 }
          cleanup
  br label %61

._crit_edge39:                                    ; preds = %50, %._crit_edge
  %.018.lcssa = phi i32 [ 0, %._crit_edge ], [ %..018, %50 ]
  %55 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %.018.lcssa)
          to label %56 unwind label %59

56:                                               ; preds = %._crit_edge39
  %57 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %55, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %58 unwind label %59

58:                                               ; preds = %56
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #6
  br label %15, !llvm.loop !17

59:                                               ; preds = %56, %._crit_edge39
  %60 = landingpad { ptr, i32 }
          cleanup
  br label %61

61:                                               ; preds = %59, %53
  %.pn = phi { ptr, i32 } [ %54, %53 ], [ %60, %59 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #6
  br label %62

62:                                               ; preds = %61, %44
  %.pn29 = phi { ptr, i32 } [ %45, %44 ], [ %.pn, %61 ]
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  br label %63

63:                                               ; preds = %62, %39
  %.pn29.pn = phi { ptr, i32 } [ %.pn29, %62 ], [ %40, %39 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #6
  br label %65

64:                                               ; preds = %25
  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

65:                                               ; preds = %63, %37
  %.pn29.pn.pn = phi { ptr, i32 } [ %.pn29.pn, %63 ], [ %38, %37 ]
  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
  resume { ptr, i32 } %.pn29.pn.pn
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) local_unnamed_addr #2 align 2

; 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 #2 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 #1

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264)) local_unnamed_addr #4 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) 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

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 #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare hidden noundef zeroext i1 @"_ZZ4mainENK3$_0clEi"(ptr noundef nonnull align 8 dereferenceable(32), i32 noundef) local_unnamed_addr #5 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #1

; 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 #4 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)) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { "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 nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !10, i64 0}
!9 = !{!"_ZTSZ4mainE3$_0", !10, i64 0, !12, i64 8, !12, i64 16, !12, i64 24}
!10 = !{!"int", !11, i64 0}
!11 = !{!"omnipotent char", !7, i64 0}
!12 = !{!"any pointer", !11, i64 0}
!13 = !{!12, !12, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = distinct !{!16, !15}
!17 = distinct !{!17, !15}


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