; LLVM IR from nragland37/cpp-projects :: programming-II/08-fstream-manualUpdate (employeeSystem)

; 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_fstream" = type { %"class.std::basic_iostream.base", %"class.std::basic_filebuf", %"class.std::basic_ios" }
%"class.std::basic_iostream.base" = type { %"class.std::basic_istream.base", %"class.std::basic_ostream.base" }
%"class.std::basic_istream.base" = type { ptr, i64 }
%"class.std::basic_ostream.base" = type { ptr }
%"class.std::basic_filebuf" = type { %"class.std::basic_streambuf", %union.pthread_mutex_t, %"class.std::__basic_file", i32, %struct.__mbstate_t, %struct.__mbstate_t, %struct.__mbstate_t, ptr, i64, i8, i8, i8, i8, ptr, ptr, i8, ptr, ptr, i64, ptr, ptr }
%"class.std::basic_streambuf" = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, %"class.std::locale" }
%"class.std::locale" = type { ptr }
%union.pthread_mutex_t = type { %struct.__pthread_mutex_s }
%struct.__pthread_mutex_s = type { i32, i32, i32, i32, i32, i16, i16, %struct.__pthread_internal_list }
%struct.__pthread_internal_list = type { ptr, ptr }
%"class.std::__basic_file" = type <{ ptr, i8, [7 x i8] }>
%struct.__mbstate_t = type { i32, %union.anon.0 }
%union.anon.0 = type { i32 }
%"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 }
%struct.Employee = type { %"class.std::__cxx11::basic_string", i32, %struct.dateEmployed }
%"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] }
%struct.dateEmployed = type { i32, i32, i32 }

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

declare i32 @__gxx_personality_v0(...)

; 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 void @_ZNSt13basic_fstreamIcSt11char_traitsIcEEC1Ev(ptr noundef nonnull align 8 dereferenceable(264)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt13basic_fstreamIcSt11char_traitsIcEE4openERKNSt7__cxx1112basic_stringIcS1_SaIcEEESt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef nonnull align 8 dereferenceable(32), i32 noundef) #1 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)) #2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt13basic_fstreamIcSt11char_traitsIcEE5closeEv(ptr noundef nonnull align 8 dereferenceable(264)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_Z13readEmployeesRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERi(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull align 4 dereferenceable(4) %1) #1 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca %"class.std::basic_fstream", align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 528, ptr %5) #7
  call void @_ZNSt13basic_fstreamIcSt11char_traitsIcEEC1Ev(ptr noundef nonnull align 8 dereferenceable(264) %5)
  %10 = load ptr, ptr %3, align 8, !tbaa !5
  invoke void @_ZNSt13basic_fstreamIcSt11char_traitsIcEE4openERKNSt7__cxx1112basic_stringIcS1_SaIcEEESt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(264) %5, ptr noundef nonnull align 8 dereferenceable(32) %10, i32 noundef 8)
          to label %11 unwind label %42

11:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #7
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = load i32, ptr %12, align 4, !tbaa !9
  %14 = sext i32 %13 to i64
  %15 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %14, i64 48)
  %16 = extractvalue { i64, i1 } %15, 1
  %17 = extractvalue { i64, i1 } %15, 0
  %18 = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 %17, i64 8)
  %19 = extractvalue { i64, i1 } %18, 1
  %20 = or i1 %16, %19
  %21 = extractvalue { i64, i1 } %18, 0
  %22 = select i1 %20, i64 -1, i64 %21
  %23 = invoke noalias noundef nonnull ptr @_Znam(i64 noundef %22) #8
          to label %24 unwind label %46

24:                                               ; preds = %11
  store i64 %14, ptr %23, align 16
  %25 = getelementptr inbounds i8, ptr %23, i64 8
  %26 = icmp eq i64 %14, 0
  br i1 %26, label %33, label %27

27:                                               ; preds = %24
  %28 = getelementptr inbounds %struct.Employee, ptr %25, i64 %14
  br label %29

29:                                               ; preds = %29, %27
  %30 = phi ptr [ %25, %27 ], [ %31, %29 ]
  call void @_ZN8EmployeeC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %30) #7
  %31 = getelementptr inbounds %struct.Employee, ptr %30, i64 1
  %32 = icmp eq ptr %31, %28
  br i1 %32, label %33, label %29

33:                                               ; preds = %29, %24
  store ptr %25, ptr %8, align 8, !tbaa !5
  %34 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEl(ptr noundef nonnull align 8 dereferenceable(16) %5, i64 noundef 2)
          to label %35 unwind label %46

35:                                               ; preds = %33
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #7
  store i32 0, ptr %9, align 4, !tbaa !9
  br label %36

36:                                               ; preds = %97, %35
  %37 = load i32, ptr %9, align 4, !tbaa !9
  %38 = load ptr, ptr %4, align 8, !tbaa !5
  %39 = load i32, ptr %38, align 4, !tbaa !9
  %40 = icmp slt i32 %37, %39
  br i1 %40, label %50, label %41

41:                                               ; preds = %36
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #7
  br label %104

42:                                               ; preds = %2
  %43 = landingpad { ptr, i32 }
          cleanup
  %44 = extractvalue { ptr, i32 } %43, 0
  store ptr %44, ptr %6, align 8
  %45 = extractvalue { ptr, i32 } %43, 1
  store i32 %45, ptr %7, align 4
  br label %108

46:                                               ; preds = %104, %33, %11
  %47 = landingpad { ptr, i32 }
          cleanup
  %48 = extractvalue { ptr, i32 } %47, 0
  store ptr %48, ptr %6, align 8
  %49 = extractvalue { ptr, i32 } %47, 1
  store i32 %49, ptr %7, align 4
  br label %107

50:                                               ; preds = %36
  %51 = load ptr, ptr %8, align 8, !tbaa !5
  %52 = load i32, ptr %9, align 4, !tbaa !9
  %53 = sext i32 %52 to i64
  %54 = getelementptr inbounds %struct.Employee, ptr %51, i64 %53
  %55 = getelementptr inbounds %struct.Employee, ptr %54, i32 0, i32 0
  %56 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EES4_(ptr noundef nonnull align 8 dereferenceable(16) %5, ptr noundef nonnull align 8 dereferenceable(32) %55, i8 noundef signext 44)
          to label %57 unwind label %100

57:                                               ; preds = %50
  %58 = load ptr, ptr %8, align 8, !tbaa !5
  %59 = load i32, ptr %9, align 4, !tbaa !9
  %60 = sext i32 %59 to i64
  %61 = getelementptr inbounds %struct.Employee, ptr %58, i64 %60
  %62 = getelementptr inbounds %struct.Employee, ptr %61, i32 0, i32 1
  %63 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %5, ptr noundef nonnull align 4 dereferenceable(4) %62)
          to label %64 unwind label %100

64:                                               ; preds = %57
  %65 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEv(ptr noundef nonnull align 8 dereferenceable(16) %5)
          to label %66 unwind label %100

66:                                               ; preds = %64
  %67 = load ptr, ptr %8, align 8, !tbaa !5
  %68 = load i32, ptr %9, align 4, !tbaa !9
  %69 = sext i32 %68 to i64
  %70 = getelementptr inbounds %struct.Employee, ptr %67, i64 %69
  %71 = getelementptr inbounds %struct.Employee, ptr %70, i32 0, i32 2
  %72 = getelementptr inbounds %struct.dateEmployed, ptr %71, i32 0, i32 0
  %73 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %5, ptr noundef nonnull align 4 dereferenceable(4) %72)
          to label %74 unwind label %100

74:                                               ; preds = %66
  %75 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEv(ptr noundef nonnull align 8 dereferenceable(16) %5)
          to label %76 unwind label %100

76:                                               ; preds = %74
  %77 = load ptr, ptr %8, align 8, !tbaa !5
  %78 = load i32, ptr %9, align 4, !tbaa !9
  %79 = sext i32 %78 to i64
  %80 = getelementptr inbounds %struct.Employee, ptr %77, i64 %79
  %81 = getelementptr inbounds %struct.Employee, ptr %80, i32 0, i32 2
  %82 = getelementptr inbounds %struct.dateEmployed, ptr %81, i32 0, i32 1
  %83 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %5, ptr noundef nonnull align 4 dereferenceable(4) %82)
          to label %84 unwind label %100

84:                                               ; preds = %76
  %85 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEv(ptr noundef nonnull align 8 dereferenceable(16) %5)
          to label %86 unwind label %100

86:                                               ; preds = %84
  %87 = load ptr, ptr %8, align 8, !tbaa !5
  %88 = load i32, ptr %9, align 4, !tbaa !9
  %89 = sext i32 %88 to i64
  %90 = getelementptr inbounds %struct.Employee, ptr %87, i64 %89
  %91 = getelementptr inbounds %struct.Employee, ptr %90, i32 0, i32 2
  %92 = getelementptr inbounds %struct.dateEmployed, ptr %91, i32 0, i32 2
  %93 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %5, ptr noundef nonnull align 4 dereferenceable(4) %92)
          to label %94 unwind label %100

94:                                               ; preds = %86
  %95 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEv(ptr noundef nonnull align 8 dereferenceable(16) %5)
          to label %96 unwind label %100

96:                                               ; preds = %94
  br label %97

97:                                               ; preds = %96
  %98 = load i32, ptr %9, align 4, !tbaa !9
  %99 = add nsw i32 %98, 1
  store i32 %99, ptr %9, align 4, !tbaa !9
  br label %36, !llvm.loop !11

100:                                              ; preds = %94, %86, %84, %76, %74, %66, %64, %57, %50
  %101 = landingpad { ptr, i32 }
          cleanup
  %102 = extractvalue { ptr, i32 } %101, 0
  store ptr %102, ptr %6, align 8
  %103 = extractvalue { ptr, i32 } %101, 1
  store i32 %103, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #7
  br label %107

104:                                              ; preds = %41
  invoke void @_ZNSt13basic_fstreamIcSt11char_traitsIcEE5closeEv(ptr noundef nonnull align 8 dereferenceable(264) %5)
          to label %105 unwind label %46

105:                                              ; preds = %104
  %106 = load ptr, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #7
  call void @_ZNSt13basic_fstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(264) %5) #7
  call void @llvm.lifetime.end.p0(i64 528, ptr %5) #7
  ret ptr %106

107:                                              ; preds = %100, %46
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #7
  br label %108

108:                                              ; preds = %107, %42
  call void @_ZNSt13basic_fstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(264) %5) #7
  call void @llvm.lifetime.end.p0(i64 528, ptr %5) #7
  br label %109

109:                                              ; preds = %108
  %110 = load ptr, ptr %6, align 8
  %111 = load i32, ptr %7, align 4
  %112 = insertvalue { ptr, i32 } poison, ptr %110, 0
  %113 = insertvalue { ptr, i32 } %112, i32 %111, 1
  resume { ptr, i32 } %113
}

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt13basic_fstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(264)) unnamed_addr #3 align 2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare { i64, i1 } @llvm.umul.with.overflow.i64(i64, i64) #4

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare { i64, i1 } @llvm.uadd.with.overflow.i64(i64, i64) #4

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) #5

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN8EmployeeC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #6 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEl(ptr noundef nonnull align 8 dereferenceable(16), i64 noundef) #2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EES4_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32), i8 noundef signext) #2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEv(ptr noundef nonnull align 8 dereferenceable(16)) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #5 = { nobuiltin allocsize(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 = { inlinehint 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 #7 = { nounwind }
attributes #8 = { builtin allocsize(0) }

!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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


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

%"class.std::basic_fstream" = type { %"class.std::basic_iostream.base", %"class.std::basic_filebuf", %"class.std::basic_ios" }
%"class.std::basic_iostream.base" = type { %"class.std::basic_istream.base", %"class.std::basic_ostream.base" }
%"class.std::basic_istream.base" = type { ptr, i64 }
%"class.std::basic_ostream.base" = type { ptr }
%"class.std::basic_filebuf" = type { %"class.std::basic_streambuf", %union.pthread_mutex_t, %"class.std::__basic_file", i32, %struct.__mbstate_t, %struct.__mbstate_t, %struct.__mbstate_t, ptr, i64, i8, i8, i8, i8, ptr, ptr, i8, ptr, ptr, i64, ptr, ptr }
%"class.std::basic_streambuf" = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, %"class.std::locale" }
%"class.std::locale" = type { ptr }
%union.pthread_mutex_t = type { %struct.__pthread_mutex_s }
%struct.__pthread_mutex_s = type { i32, i32, i32, i32, i32, i16, i16, %struct.__pthread_internal_list }
%struct.__pthread_internal_list = type { ptr, ptr }
%"class.std::__basic_file" = type <{ ptr, i8, [7 x i8] }>
%struct.__mbstate_t = type { i32, %union.anon.0 }
%union.anon.0 = type { i32 }
%"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 }
%struct.Employee = type { %"class.std::__cxx11::basic_string", i32, %struct.dateEmployed }
%"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] }
%struct.dateEmployed = type { i32, i32, i32 }

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

declare i32 @__gxx_personality_v0(...)

; 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 void @_ZNSt13basic_fstreamIcSt11char_traitsIcEEC1Ev(ptr noundef nonnull align 8 dereferenceable(264)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt13basic_fstreamIcSt11char_traitsIcEE4openERKNSt7__cxx1112basic_stringIcS1_SaIcEEESt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef nonnull align 8 dereferenceable(32), i32 noundef) local_unnamed_addr #1 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 #2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt13basic_fstreamIcSt11char_traitsIcEE5closeEv(ptr noundef nonnull align 8 dereferenceable(264)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef nonnull ptr @_Z13readEmployeesRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERi(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr nocapture noundef nonnull readonly align 4 dereferenceable(4) %1) local_unnamed_addr #1 personality ptr @__gxx_personality_v0 {
  %3 = alloca %"class.std::basic_fstream", align 8
  call void @llvm.lifetime.start.p0(i64 528, ptr nonnull %3) #7
  call void @_ZNSt13basic_fstreamIcSt11char_traitsIcEEC1Ev(ptr noundef nonnull align 8 dereferenceable(264) %3)
  invoke void @_ZNSt13basic_fstreamIcSt11char_traitsIcEE4openERKNSt7__cxx1112basic_stringIcS1_SaIcEEESt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(264) %3, ptr noundef nonnull align 8 dereferenceable(32) %0, i32 noundef 8)
          to label %4 unwind label %25

4:                                                ; preds = %2
  %5 = load i32, ptr %1, align 4, !tbaa !5
  %6 = sext i32 %5 to i64
  %7 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %6, i64 48)
  %8 = extractvalue { i64, i1 } %7, 1
  %9 = extractvalue { i64, i1 } %7, 0
  %10 = or disjoint i64 %9, 8
  %11 = select i1 %8, i64 -1, i64 %10
  %12 = invoke noalias noundef nonnull ptr @_Znam(i64 noundef %11) #8
          to label %13 unwind label %27

13:                                               ; preds = %4
  store i64 %6, ptr %12, align 16
  %14 = getelementptr inbounds i8, ptr %12, i64 8
  %15 = icmp eq i32 %5, 0
  br i1 %15, label %.loopexit, label %16

16:                                               ; preds = %13
  %17 = getelementptr inbounds %struct.Employee, ptr %14, i64 %6
  br label %18

18:                                               ; preds = %18, %16
  %19 = phi ptr [ %14, %16 ], [ %20, %18 ]
  call void @_ZN8EmployeeC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %19) #7
  %20 = getelementptr inbounds i8, ptr %19, i64 48
  %21 = icmp eq ptr %20, %17
  br i1 %21, label %.loopexit, label %18

.loopexit:                                        ; preds = %18, %13
  %22 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEl(ptr noundef nonnull align 8 dereferenceable(16) %3, i64 noundef 2)
          to label %.preheader unwind label %27

.preheader:                                       ; preds = %.loopexit
  %23 = load i32, ptr %1, align 4, !tbaa !5
  %24 = icmp sgt i32 %23, 0
  br i1 %24, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %51, %.preheader
  invoke void @_ZNSt13basic_fstreamIcSt11char_traitsIcEE5closeEv(ptr noundef nonnull align 8 dereferenceable(264) %3)
          to label %57 unwind label %27

25:                                               ; preds = %2
  %26 = landingpad { ptr, i32 }
          cleanup
  br label %58

27:                                               ; preds = %._crit_edge, %.loopexit, %4
  %28 = landingpad { ptr, i32 }
          cleanup
  br label %58

.lr.ph:                                           ; preds = %.preheader, %51
  %indvars.iv = phi i64 [ %indvars.iv.next, %51 ], [ 0, %.preheader ]
  %29 = getelementptr inbounds %struct.Employee, ptr %14, i64 %indvars.iv
  %30 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EES4_(ptr noundef nonnull align 8 dereferenceable(16) %3, ptr noundef nonnull align 8 dereferenceable(32) %29, i8 noundef signext 44)
          to label %31 unwind label %55

31:                                               ; preds = %.lr.ph
  %32 = getelementptr inbounds i8, ptr %29, i64 32
  %33 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %3, ptr noundef nonnull align 4 dereferenceable(4) %32)
          to label %34 unwind label %55

34:                                               ; preds = %31
  %35 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEv(ptr noundef nonnull align 8 dereferenceable(16) %3)
          to label %36 unwind label %55

36:                                               ; preds = %34
  %37 = getelementptr inbounds i8, ptr %29, i64 36
  %38 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %3, ptr noundef nonnull align 4 dereferenceable(4) %37)
          to label %39 unwind label %55

39:                                               ; preds = %36
  %40 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEv(ptr noundef nonnull align 8 dereferenceable(16) %3)
          to label %41 unwind label %55

41:                                               ; preds = %39
  %42 = getelementptr inbounds i8, ptr %29, i64 40
  %43 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %3, ptr noundef nonnull align 4 dereferenceable(4) %42)
          to label %44 unwind label %55

44:                                               ; preds = %41
  %45 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEv(ptr noundef nonnull align 8 dereferenceable(16) %3)
          to label %46 unwind label %55

46:                                               ; preds = %44
  %47 = getelementptr inbounds i8, ptr %29, i64 44
  %48 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %3, ptr noundef nonnull align 4 dereferenceable(4) %47)
          to label %49 unwind label %55

49:                                               ; preds = %46
  %50 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEv(ptr noundef nonnull align 8 dereferenceable(16) %3)
          to label %51 unwind label %55

51:                                               ; preds = %49
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %52 = load i32, ptr %1, align 4, !tbaa !5
  %53 = sext i32 %52 to i64
  %54 = icmp slt i64 %indvars.iv.next, %53
  br i1 %54, label %.lr.ph, label %._crit_edge, !llvm.loop !9

55:                                               ; preds = %49, %46, %44, %41, %39, %36, %34, %31, %.lr.ph
  %56 = landingpad { ptr, i32 }
          cleanup
  br label %58

57:                                               ; preds = %._crit_edge
  call void @_ZNSt13basic_fstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(264) %3) #7
  call void @llvm.lifetime.end.p0(i64 528, ptr nonnull %3) #7
  ret ptr %14

58:                                               ; preds = %27, %55, %25
  %.pn.pn = phi { ptr, i32 } [ %26, %25 ], [ %56, %55 ], [ %28, %27 ]
  call void @_ZNSt13basic_fstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(264) %3) #7
  call void @llvm.lifetime.end.p0(i64 528, ptr nonnull %3) #7
  resume { ptr, i32 } %.pn.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt13basic_fstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(264)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare { i64, i1 } @llvm.umul.with.overflow.i64(i64, i64) #4

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) local_unnamed_addr #5

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN8EmployeeC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #6 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEl(ptr noundef nonnull align 8 dereferenceable(16), i64 noundef) local_unnamed_addr #2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EES4_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32), i8 noundef signext) local_unnamed_addr #2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi6ignoreEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #5 = { nobuiltin allocsize(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 = { inlinehint 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 #7 = { nounwind }
attributes #8 = { builtin allocsize(0) }

!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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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