; LLVM IR from jupyter-xeus/xeus-cling :: src/xparser.ll/ZN4xcpp9get_linesERKNSt7 (cxx1112basic_stringIcSt11char_traitsIcESaIcEEE)

; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::__cxx11::basic_regex" = type { i32, %"class.std::locale", %"class.std::shared_ptr" }
%"class.std::locale" = type { ptr }
%"class.std::shared_ptr" = type { %"class.std::__shared_ptr" }
%"class.std::__shared_ptr" = type { ptr, %"class.std::__shared_count" }
%"class.std::__shared_count" = type { ptr }
%"class.std::__cxx11::regex_token_iterator" = type <{ %"class.std::__cxx11::regex_iterator", %"class.std::vector.8", %"class.std::__cxx11::sub_match", i64, ptr, i8, [7 x i8] }>
%"class.std::__cxx11::regex_iterator" = type { %"class.__gnu_cxx::__normal_iterator", %"class.__gnu_cxx::__normal_iterator", ptr, i32, %"class.std::__cxx11::match_results" }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%"class.std::__cxx11::match_results" = type { %"class.std::vector.3", %"class.__gnu_cxx::__normal_iterator" }
%"class.std::vector.3" = type { %"struct.std::_Vector_base.4" }
%"struct.std::_Vector_base.4" = type { %"struct.std::_Vector_base<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.8" = type { %"struct.std::_Vector_base.9" }
%"struct.std::_Vector_base.9" = 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::__cxx11::sub_match" = type <{ %"struct.std::pair", i8, [7 x i8] }>
%"struct.std::pair" = type { %"class.__gnu_cxx::__normal_iterator", %"class.__gnu_cxx::__normal_iterator" }
%"class.std::back_insert_iterator" = type { ptr }

@.str.3 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32)) #0 align 2

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

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt4copyINSt7__cxx1120regex_token_iteratorIN9__gnu_cxx17__normal_iteratorIPKcNS0_12basic_stringIcSt11char_traitsIcESaIcEEEEEcNS0_12regex_traitsIcEEEESt20back_insert_iteratorISt6vectorISA_SaISA_EEEET0_T_SL_SK_(ptr noundef, ptr noundef, ptr) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1120regex_token_iteratorIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEEcNS_12regex_traitsIcEEEC2ESA_SA_RKNS_11basic_regexIcSC_EEiNSt15regex_constants15match_flag_typeE(ptr noundef nonnull align 8 dereferenceable(129), ptr, ptr, ptr noundef nonnull align 8 dereferenceable(32), i32 noundef, i32 noundef) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1120regex_token_iteratorIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEEcNS_12regex_traitsIcEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(129)) unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt13back_inserterISt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS6_EEESt20back_insert_iteratorIT_ERSA_(ptr noundef nonnull align 8 dereferenceable(24)) #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt7__cxx1120regex_token_iteratorIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEEcNS_12regex_traitsIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(129)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt7__cxx1111basic_regexIcNS_12regex_traitsIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4xcpp9get_linesERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8 %0, ptr noundef nonnull align 8 dereferenceable(32) %1) #3 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i1, align 1
  %6 = alloca %"class.std::__cxx11::basic_regex", align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca %"class.std::__cxx11::regex_token_iterator", align 8
  %10 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %11 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %12 = alloca %"class.std::__cxx11::regex_token_iterator", align 8
  %13 = alloca %"class.std::back_insert_iterator", align 8
  %14 = alloca %"class.std::back_insert_iterator", align 8
  store ptr %0, ptr %3, align 8
  store ptr %1, ptr %4, align 8, !tbaa !5
  store i1 false, ptr %5, align 1
  call void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr %6) #5
  invoke void @_ZNSt7__cxx1111basic_regexIcNS_12regex_traitsIcEEEC2EPKcNSt15regex_constants18syntax_option_typeE(ptr noundef nonnull align 8 dereferenceable(32) %6, ptr noundef @.str.3, i32 noundef 16)
          to label %15 unwind label %37

15:                                               ; preds = %2
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = call ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %16) #5
  %18 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %10, i32 0, i32 0
  store ptr %17, ptr %18, align 8
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = call ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32) %19) #5
  %21 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  store ptr %20, ptr %21, align 8
  %22 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %10, i32 0, i32 0
  %23 = load ptr, ptr %22, align 8
  %24 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  %25 = load ptr, ptr %24, align 8
  invoke void @_ZNSt7__cxx1120regex_token_iteratorIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEEcNS_12regex_traitsIcEEEC2ESA_SA_RKNS_11basic_regexIcSC_EEiNSt15regex_constants15match_flag_typeE(ptr noundef nonnull align 8 dereferenceable(129) %9, ptr %23, ptr %25, ptr noundef nonnull align 8 dereferenceable(32) %6, i32 noundef -1, i32 noundef 0)
          to label %26 unwind label %41

26:                                               ; preds = %15
  invoke void @_ZNSt7__cxx1120regex_token_iteratorIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEEcNS_12regex_traitsIcEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(129) %12)
          to label %27 unwind label %45

27:                                               ; preds = %26
  %28 = invoke ptr @_ZSt13back_inserterISt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS6_EEESt20back_insert_iteratorIT_ERSA_(ptr noundef nonnull align 8 dereferenceable(24) %0)
          to label %29 unwind label %49

29:                                               ; preds = %27
  %30 = getelementptr inbounds %"class.std::back_insert_iterator", ptr %13, i32 0, i32 0
  store ptr %28, ptr %30, align 8
  %31 = getelementptr inbounds %"class.std::back_insert_iterator", ptr %13, i32 0, i32 0
  %32 = load ptr, ptr %31, align 8
  %33 = invoke ptr @_ZSt4copyINSt7__cxx1120regex_token_iteratorIN9__gnu_cxx17__normal_iteratorIPKcNS0_12basic_stringIcSt11char_traitsIcESaIcEEEEEcNS0_12regex_traitsIcEEEESt20back_insert_iteratorISt6vectorISA_SaISA_EEEET0_T_SL_SK_(ptr noundef %9, ptr noundef %12, ptr %32)
          to label %34 unwind label %49

34:                                               ; preds = %29
  %35 = getelementptr inbounds %"class.std::back_insert_iterator", ptr %14, i32 0, i32 0
  store ptr %33, ptr %35, align 8
  call void @_ZNSt7__cxx1120regex_token_iteratorIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEEcNS_12regex_traitsIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(129) %12) #5
  call void @_ZNSt7__cxx1120regex_token_iteratorIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEEcNS_12regex_traitsIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(129) %9) #5
  store i1 true, ptr %5, align 1
  call void @_ZNSt7__cxx1111basic_regexIcNS_12regex_traitsIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %6) #5
  %36 = load i1, ptr %5, align 1
  br i1 %36, label %57, label %56

37:                                               ; preds = %2
  %38 = landingpad { ptr, i32 }
          cleanup
  %39 = extractvalue { ptr, i32 } %38, 0
  store ptr %39, ptr %7, align 8
  %40 = extractvalue { ptr, i32 } %38, 1
  store i32 %40, ptr %8, align 4
  br label %55

41:                                               ; preds = %15
  %42 = landingpad { ptr, i32 }
          cleanup
  %43 = extractvalue { ptr, i32 } %42, 0
  store ptr %43, ptr %7, align 8
  %44 = extractvalue { ptr, i32 } %42, 1
  store i32 %44, ptr %8, align 4
  br label %54

45:                                               ; preds = %26
  %46 = landingpad { ptr, i32 }
          cleanup
  %47 = extractvalue { ptr, i32 } %46, 0
  store ptr %47, ptr %7, align 8
  %48 = extractvalue { ptr, i32 } %46, 1
  store i32 %48, ptr %8, align 4
  br label %53

49:                                               ; preds = %29, %27
  %50 = landingpad { ptr, i32 }
          cleanup
  %51 = extractvalue { ptr, i32 } %50, 0
  store ptr %51, ptr %7, align 8
  %52 = extractvalue { ptr, i32 } %50, 1
  store i32 %52, ptr %8, align 4
  call void @_ZNSt7__cxx1120regex_token_iteratorIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEEcNS_12regex_traitsIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(129) %12) #5
  br label %53

53:                                               ; preds = %49, %45
  call void @_ZNSt7__cxx1120regex_token_iteratorIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEEcNS_12regex_traitsIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(129) %9) #5
  br label %54

54:                                               ; preds = %53, %41
  call void @_ZNSt7__cxx1111basic_regexIcNS_12regex_traitsIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #5
  br label %55

55:                                               ; preds = %54, %37
  call void @llvm.lifetime.end.p0(i64 32, ptr %6) #5
  call void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #5
  br label %58

56:                                               ; preds = %34
  call void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #5
  br label %57

57:                                               ; preds = %56, %34
  ret void

58:                                               ; preds = %55
  %59 = load ptr, ptr %7, align 8
  %60 = load i32, ptr %8, align 4
  %61 = insertvalue { ptr, i32 } poison, ptr %59, 0
  %62 = insertvalue { ptr, i32 } %61, i32 %60, 1
  resume { ptr, i32 } %62
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1111basic_regexIcNS_12regex_traitsIcEEEC2EPKcNSt15regex_constants18syntax_option_typeE(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, i32 noundef) unnamed_addr #3 align 2

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { 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 #4 = { 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 #5 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::__cxx11::basic_regex" = type { i32, %"class.std::locale", %"class.std::shared_ptr" }
%"class.std::locale" = type { ptr }
%"class.std::shared_ptr" = type { %"class.std::__shared_ptr" }
%"class.std::__shared_ptr" = type { ptr, %"class.std::__shared_count" }
%"class.std::__shared_count" = type { ptr }
%"class.std::__cxx11::regex_token_iterator" = type <{ %"class.std::__cxx11::regex_iterator", %"class.std::vector.8", %"class.std::__cxx11::sub_match", i64, ptr, i8, [7 x i8] }>
%"class.std::__cxx11::regex_iterator" = type { %"class.__gnu_cxx::__normal_iterator", %"class.__gnu_cxx::__normal_iterator", ptr, i32, %"class.std::__cxx11::match_results" }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%"class.std::__cxx11::match_results" = type { %"class.std::vector.3", %"class.__gnu_cxx::__normal_iterator" }
%"class.std::vector.3" = type { %"struct.std::_Vector_base.4" }
%"struct.std::_Vector_base.4" = type { %"struct.std::_Vector_base<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>, std::allocator<std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<const char *, std::__cxx11::basic_string<char>>>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.8" = type { %"struct.std::_Vector_base.9" }
%"struct.std::_Vector_base.9" = 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::__cxx11::sub_match" = type <{ %"struct.std::pair", i8, [7 x i8] }>
%"struct.std::pair" = type { %"class.__gnu_cxx::__normal_iterator", %"class.__gnu_cxx::__normal_iterator" }

@.str.3 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #0 align 2

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

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt4copyINSt7__cxx1120regex_token_iteratorIN9__gnu_cxx17__normal_iteratorIPKcNS0_12basic_stringIcSt11char_traitsIcESaIcEEEEEcNS0_12regex_traitsIcEEEESt20back_insert_iteratorISt6vectorISA_SaISA_EEEET0_T_SL_SK_(ptr noundef, ptr noundef, ptr) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1120regex_token_iteratorIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEEcNS_12regex_traitsIcEEEC2ESA_SA_RKNS_11basic_regexIcSC_EEiNSt15regex_constants15match_flag_typeE(ptr noundef nonnull align 8 dereferenceable(129), ptr, ptr, ptr noundef nonnull align 8 dereferenceable(32), i32 noundef, i32 noundef) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1120regex_token_iteratorIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEEcNS_12regex_traitsIcEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(129)) unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt13back_inserterISt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS6_EEESt20back_insert_iteratorIT_ERSA_(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt7__cxx1120regex_token_iteratorIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEEcNS_12regex_traitsIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(129)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt7__cxx1111basic_regexIcNS_12regex_traitsIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4xcpp9get_linesERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr dead_on_unwind noalias nonnull writable sret(%"class.std::vector") align 8 %0, ptr noundef nonnull align 8 dereferenceable(32) %1) local_unnamed_addr #3 personality ptr @__gxx_personality_v0 {
  %3 = alloca %"class.std::__cxx11::basic_regex", align 8
  %4 = alloca %"class.std::__cxx11::regex_token_iterator", align 8
  %5 = alloca %"class.std::__cxx11::regex_token_iterator", align 8
  tail call void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %3) #5
  invoke void @_ZNSt7__cxx1111basic_regexIcNS_12regex_traitsIcEEEC2EPKcNSt15regex_constants18syntax_option_typeE(ptr noundef nonnull align 8 dereferenceable(32) %3, ptr noundef nonnull @.str.3, i32 noundef 16)
          to label %6 unwind label %15

6:                                                ; preds = %2
  %7 = call ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #5
  %8 = call ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #5
  invoke void @_ZNSt7__cxx1120regex_token_iteratorIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEEcNS_12regex_traitsIcEEEC2ESA_SA_RKNS_11basic_regexIcSC_EEiNSt15regex_constants15match_flag_typeE(ptr noundef nonnull align 8 dereferenceable(129) %4, ptr %7, ptr %8, ptr noundef nonnull align 8 dereferenceable(32) %3, i32 noundef -1, i32 noundef 0)
          to label %9 unwind label %17

9:                                                ; preds = %6
  invoke void @_ZNSt7__cxx1120regex_token_iteratorIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEEcNS_12regex_traitsIcEEEC2Ev(ptr noundef nonnull align 8 dereferenceable(129) %5)
          to label %10 unwind label %19

10:                                               ; preds = %9
  %11 = invoke ptr @_ZSt13back_inserterISt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS6_EEESt20back_insert_iteratorIT_ERSA_(ptr noundef nonnull align 8 dereferenceable(24) %0)
          to label %12 unwind label %21

12:                                               ; preds = %10
  %13 = invoke ptr @_ZSt4copyINSt7__cxx1120regex_token_iteratorIN9__gnu_cxx17__normal_iteratorIPKcNS0_12basic_stringIcSt11char_traitsIcESaIcEEEEEcNS0_12regex_traitsIcEEEESt20back_insert_iteratorISt6vectorISA_SaISA_EEEET0_T_SL_SK_(ptr noundef nonnull %4, ptr noundef nonnull %5, ptr %11)
          to label %14 unwind label %21

14:                                               ; preds = %12
  call void @_ZNSt7__cxx1120regex_token_iteratorIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEEcNS_12regex_traitsIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(129) %5) #5
  call void @_ZNSt7__cxx1120regex_token_iteratorIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEEcNS_12regex_traitsIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(129) %4) #5
  call void @_ZNSt7__cxx1111basic_regexIcNS_12regex_traitsIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #5
  ret void

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

17:                                               ; preds = %6
  %18 = landingpad { ptr, i32 }
          cleanup
  br label %24

19:                                               ; preds = %9
  %20 = landingpad { ptr, i32 }
          cleanup
  br label %23

21:                                               ; preds = %12, %10
  %22 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1120regex_token_iteratorIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEEcNS_12regex_traitsIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(129) %5) #5
  br label %23

23:                                               ; preds = %21, %19
  %.pn = phi { ptr, i32 } [ %22, %21 ], [ %20, %19 ]
  call void @_ZNSt7__cxx1120regex_token_iteratorIN9__gnu_cxx17__normal_iteratorIPKcNS_12basic_stringIcSt11char_traitsIcESaIcEEEEEcNS_12regex_traitsIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(129) %4) #5
  br label %24

24:                                               ; preds = %23, %17
  %.pn.pn = phi { ptr, i32 } [ %.pn, %23 ], [ %18, %17 ]
  call void @_ZNSt7__cxx1111basic_regexIcNS_12regex_traitsIcEEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #5
  br label %25

25:                                               ; preds = %24, %15
  %.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn, %24 ], [ %16, %15 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #5
  call void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #5
  resume { ptr, i32 } %.pn.pn.pn
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1111basic_regexIcNS_12regex_traitsIcEEEC2EPKcNSt15regex_constants18syntax_option_typeE(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, i32 noundef) unnamed_addr #3 align 2

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { 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 #4 = { 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 #5 = { 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)"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass