; LLVM IR from bldeng/AASolver :: AndersonOpt/external/OpenMesh/Core/IO/reader (OBJReader)

; 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::__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::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.18 }
%union.anon.18 = 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 }
%"class.std::allocator.0" = type { i8 }
%"class.OpenMesh::IO::_OBJReader_" = type { %"class.OpenMesh::IO::BaseReader", %"class.std::map", %"class.std::__cxx11::basic_string" }
%"class.OpenMesh::IO::BaseReader" = type { ptr }
%"class.std::map" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<std::__cxx11::basic_string<char>, std::pair<const std::__cxx11::basic_string<char>, OpenMesh::IO::_OBJReader_::Material>, std::_Select1st<std::pair<const std::__cxx11::basic_string<char>, OpenMesh::IO::_OBJReader_::Material>>, std::less<std::__cxx11::basic_string<char>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::__cxx11::basic_string<char>, std::pair<const std::__cxx11::basic_string<char>, OpenMesh::IO::_OBJReader_::Material>, std::_Select1st<std::pair<const std::__cxx11::basic_string<char>, OpenMesh::IO::_OBJReader_::Material>>, std::less<std::__cxx11::basic_string<char>>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }

@.str.2 = external hidden unnamed_addr constant [36 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [3 x i8], align 1

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

; Function Attrs: mustprogress uwtable
declare void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), i64 noundef, i64 noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #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: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN8OpenMesh2IO11_OBJReader_4readERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERNS0_12BaseImporterERNS0_7OptionsE(ptr noundef nonnull align 8 dereferenceable(88) %0, ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 4 dereferenceable(4) %3) unnamed_addr #1 align 2 personality ptr @__gxx_personality_v0 {
  %5 = alloca i1, align 1
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca %"class.std::basic_fstream", align 8
  %11 = alloca ptr, align 8
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca i64, align 8
  %15 = alloca %"class.std::__cxx11::basic_string", align 8
  %16 = alloca %"class.std::allocator.0", align 1
  %17 = alloca i1, align 1
  %18 = alloca i1, align 1
  %19 = alloca i8, align 1
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store ptr %2, ptr %8, align 8, !tbaa !5
  store ptr %3, ptr %9, align 8, !tbaa !5
  %20 = load ptr, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 528, ptr %10) #5
  %21 = load ptr, ptr %7, align 8, !tbaa !5
  %22 = call noundef ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5c_strEv(ptr noundef nonnull align 8 dereferenceable(32) %21) #5
  call void @_ZNSt13basic_fstreamIcSt11char_traitsIcEEC1EPKcSt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(264) %10, ptr noundef %22, i32 noundef 8)
  %23 = invoke noundef zeroext i1 @_ZNSt13basic_fstreamIcSt11char_traitsIcEE7is_openEv(ptr noundef nonnull align 8 dereferenceable(264) %10)
          to label %24 unwind label %42

24:                                               ; preds = %4
  br i1 %23, label %25, label %32

25:                                               ; preds = %24
  %26 = load ptr, ptr %10, align 8, !tbaa !9
  %27 = getelementptr i8, ptr %26, i64 -24
  %28 = load i64, ptr %27, align 8
  %29 = getelementptr inbounds i8, ptr %10, i64 %28
  %30 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE4goodEv(ptr noundef nonnull align 8 dereferenceable(264) %29)
          to label %31 unwind label %42

31:                                               ; preds = %25
  br i1 %30, label %46, label %32

32:                                               ; preds = %31, %24
  %33 = invoke noundef nonnull align 8 dereferenceable(224) ptr @_Z5omerrv()
          to label %34 unwind label %42

34:                                               ; preds = %32
  %35 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %33, ptr noundef @.str.2)
          to label %36 unwind label %42

36:                                               ; preds = %34
  %37 = load ptr, ptr %7, align 8, !tbaa !5
  %38 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) %35, ptr noundef nonnull align 8 dereferenceable(32) %37)
          to label %39 unwind label %42

39:                                               ; preds = %36
  %40 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %38, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %41 unwind label %42

41:                                               ; preds = %39
  store i1 false, ptr %5, align 1
  store i32 1, ptr %13, align 4
  br label %98

42:                                               ; preds = %39, %36, %34, %32, %25, %4
  %43 = landingpad { ptr, i32 }
          cleanup
  %44 = extractvalue { ptr, i32 } %43, 0
  store ptr %44, ptr %11, align 8
  %45 = extractvalue { ptr, i32 } %43, 1
  store i32 %45, ptr %12, align 4
  br label %100

46:                                               ; preds = %31
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #5
  %47 = load ptr, ptr %7, align 8, !tbaa !5
  %48 = invoke noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5rfindEPKcm(ptr noundef nonnull align 8 dereferenceable(32) %47, ptr noundef @.str.3, i64 noundef -1)
          to label %49 unwind label %79

49:                                               ; preds = %46
  store i64 %48, ptr %14, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 32, ptr %15) #5
  %50 = load i64, ptr %14, align 8, !tbaa !11
  %51 = icmp eq i64 %50, -1
  store i1 false, ptr %17, align 1
  store i1 false, ptr %18, align 1
  br i1 %51, label %52, label %54

52:                                               ; preds = %49
  call void @llvm.lifetime.start.p0(i64 1, ptr %16) #5
  store i1 true, ptr %17, align 1
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %16) #5
  store i1 true, ptr %18, align 1
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %15, ptr noundef @.str.4, ptr noundef nonnull align 1 dereferenceable(1) %16)
          to label %53 unwind label %83

53:                                               ; preds = %52
  br label %59

54:                                               ; preds = %49
  %55 = load ptr, ptr %7, align 8, !tbaa !5
  %56 = load i64, ptr %14, align 8, !tbaa !11
  %57 = add i64 %56, 1
  invoke void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %15, ptr noundef nonnull align 8 dereferenceable(32) %55, i64 noundef 0, i64 noundef %57)
          to label %58 unwind label %83

58:                                               ; preds = %54
  br label %59

59:                                               ; preds = %58, %53
  %60 = getelementptr inbounds %"class.OpenMesh::IO::_OBJReader_", ptr %20, i32 0, i32 2
  %61 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %60, ptr noundef nonnull align 8 dereferenceable(32) %15) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %15) #5
  %62 = load i1, ptr %18, align 1
  br i1 %62, label %63, label %64

63:                                               ; preds = %59
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %16) #5
  br label %64

64:                                               ; preds = %63, %59
  %65 = load i1, ptr %17, align 1
  br i1 %65, label %66, label %67

66:                                               ; preds = %64
  call void @llvm.lifetime.end.p0(i64 1, ptr %16) #5
  br label %67

67:                                               ; preds = %66, %64
  call void @llvm.lifetime.end.p0(i64 32, ptr %15) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %19) #5
  %68 = load ptr, ptr %8, align 8, !tbaa !5
  %69 = load ptr, ptr %9, align 8, !tbaa !5
  %70 = load ptr, ptr %20, align 8, !tbaa !9
  %71 = getelementptr inbounds ptr, ptr %70, i64 6
  %72 = load ptr, ptr %71, align 8
  %73 = invoke noundef zeroext i1 %72(ptr noundef nonnull align 8 dereferenceable(88) %20, ptr noundef nonnull align 8 dereferenceable(16) %10, ptr noundef nonnull align 8 dereferenceable(8) %68, ptr noundef nonnull align 4 dereferenceable(4) %69)
          to label %74 unwind label %94

74:                                               ; preds = %67
  %75 = zext i1 %73 to i8
  store i8 %75, ptr %19, align 1, !tbaa !13
  invoke void @_ZNSt13basic_fstreamIcSt11char_traitsIcEE5closeEv(ptr noundef nonnull align 8 dereferenceable(264) %10)
          to label %76 unwind label %94

76:                                               ; preds = %74
  %77 = load i8, ptr %19, align 1, !tbaa !13, !range !15, !noundef !16
  %78 = trunc i8 %77 to i1
  store i1 %78, ptr %5, align 1
  store i32 1, ptr %13, align 4
  call void @llvm.lifetime.end.p0(i64 1, ptr %19) #5
  br label %98

79:                                               ; preds = %46
  %80 = landingpad { ptr, i32 }
          cleanup
  %81 = extractvalue { ptr, i32 } %80, 0
  store ptr %81, ptr %11, align 8
  %82 = extractvalue { ptr, i32 } %80, 1
  store i32 %82, ptr %12, align 4
  br label %93

83:                                               ; preds = %54, %52
  %84 = landingpad { ptr, i32 }
          cleanup
  %85 = extractvalue { ptr, i32 } %84, 0
  store ptr %85, ptr %11, align 8
  %86 = extractvalue { ptr, i32 } %84, 1
  store i32 %86, ptr %12, align 4
  %87 = load i1, ptr %18, align 1
  br i1 %87, label %88, label %89

88:                                               ; preds = %83
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %16) #5
  br label %89

89:                                               ; preds = %88, %83
  %90 = load i1, ptr %17, align 1
  br i1 %90, label %91, label %92

91:                                               ; preds = %89
  call void @llvm.lifetime.end.p0(i64 1, ptr %16) #5
  br label %92

92:                                               ; preds = %91, %89
  call void @llvm.lifetime.end.p0(i64 32, ptr %15) #5
  br label %93

93:                                               ; preds = %92, %79
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #5
  br label %100

94:                                               ; preds = %74, %67
  %95 = landingpad { ptr, i32 }
          cleanup
  %96 = extractvalue { ptr, i32 } %95, 0
  store ptr %96, ptr %11, align 8
  %97 = extractvalue { ptr, i32 } %95, 1
  store i32 %97, ptr %12, align 4
  call void @llvm.lifetime.end.p0(i64 1, ptr %19) #5
  br label %100

98:                                               ; preds = %76, %41
  call void @_ZNSt13basic_fstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(264) %10) #5
  call void @llvm.lifetime.end.p0(i64 528, ptr %10) #5
  %99 = load i1, ptr %5, align 1
  ret i1 %99

100:                                              ; preds = %94, %93, %42
  call void @_ZNSt13basic_fstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(264) %10) #5
  call void @llvm.lifetime.end.p0(i64 528, ptr %10) #5
  br label %101

101:                                              ; preds = %100
  %102 = load ptr, ptr %11, align 8
  %103 = load i32, ptr %12, align 4
  %104 = insertvalue { ptr, i32 } poison, ptr %102, 0
  %105 = insertvalue { ptr, i32 } %104, i32 %103, 1
  resume { ptr, i32 } %105
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5c_strEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt13basic_fstreamIcSt11char_traitsIcEEC1EPKcSt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef, i32 noundef) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef zeroext i1 @_ZNSt13basic_fstreamIcSt11char_traitsIcEE7is_openEv(ptr noundef nonnull align 8 dereferenceable(264)) #2 align 2

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE4goodEv(ptr noundef nonnull align 8 dereferenceable(264)) #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) #3

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #3

declare noundef nonnull align 8 dereferenceable(224) ptr @_Z5omerrv() #4

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #1 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)) #3

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5rfindEPKcm(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 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 = { 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 = { 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 #4 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { 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"}
!9 = !{!10, !10, i64 0}
!10 = !{!"vtable pointer", !8, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!14, !14, i64 0}
!14 = !{!"bool", !7, i64 0}
!15 = !{i8 0, i8 2}
!16 = !{}


; 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::__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::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.18 }
%union.anon.18 = 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 }
%"class.std::allocator.0" = type { i8 }

@.str.2 = external hidden unnamed_addr constant [36 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [3 x i8], align 1

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

; Function Attrs: mustprogress uwtable
declare void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), i64 noundef, i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN8OpenMesh2IO11_OBJReader_4readERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERNS0_12BaseImporterERNS0_7OptionsE(ptr noundef nonnull align 8 dereferenceable(88) %0, ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 4 dereferenceable(4) %3) unnamed_addr #1 align 2 personality ptr @__gxx_personality_v0 {
  %5 = alloca %"class.std::basic_fstream", align 8
  %6 = alloca %"class.std::__cxx11::basic_string", align 8
  %7 = alloca %"class.std::allocator.0", align 1
  call void @llvm.lifetime.start.p0(i64 528, ptr nonnull %5) #5
  %8 = tail call noundef ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5c_strEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #5
  call void @_ZNSt13basic_fstreamIcSt11char_traitsIcEEC1EPKcSt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(264) %5, ptr noundef %8, i32 noundef 8)
  %9 = call noundef zeroext i1 @_ZNSt13basic_fstreamIcSt11char_traitsIcEE7is_openEv(ptr noundef nonnull align 8 dereferenceable(264) %5)
  br i1 %9, label %10, label %17

10:                                               ; preds = %4
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = getelementptr i8, ptr %11, i64 -24
  %13 = load i64, ptr %12, align 8
  %14 = getelementptr inbounds i8, ptr %5, i64 %13
  %15 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE4goodEv(ptr noundef nonnull align 8 dereferenceable(264) %14)
          to label %16 unwind label %25

16:                                               ; preds = %10
  br i1 %15, label %27, label %17

17:                                               ; preds = %16, %4
  %18 = invoke noundef nonnull align 8 dereferenceable(224) ptr @_Z5omerrv()
          to label %19 unwind label %25

19:                                               ; preds = %17
  %20 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %18, ptr noundef nonnull @.str.2)
          to label %21 unwind label %25

21:                                               ; preds = %19
  %22 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) %20, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %23 unwind label %25

23:                                               ; preds = %21
  %24 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %22, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %49 unwind label %25

25:                                               ; preds = %23, %21, %19, %17, %10
  %26 = landingpad { ptr, i32 }
          cleanup
  br label %50

27:                                               ; preds = %16
  %28 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5rfindEPKcm(ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull @.str.3, i64 noundef -1)
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %6) #5
  %29 = icmp eq i64 %28, -1
  br i1 %29, label %30, label %31

30:                                               ; preds = %27
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %7) #5
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #5
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %6, ptr noundef nonnull @.str.4, ptr noundef nonnull align 1 dereferenceable(1) %7)
          to label %33 unwind label %44

31:                                               ; preds = %27
  %32 = add nuw i64 %28, 1
  invoke void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %6, ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef 0, i64 noundef %32)
          to label %33 unwind label %42

33:                                               ; preds = %31, %30
  %34 = getelementptr inbounds i8, ptr %0, i64 56
  %35 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %34, ptr noundef nonnull align 8 dereferenceable(32) %6) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #5
  br i1 %29, label %36, label %.critedge

36:                                               ; preds = %33
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %7) #5
  br label %.critedge

.critedge:                                        ; preds = %33, %36
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %6) #5
  %37 = load ptr, ptr %0, align 8, !tbaa !5
  %38 = getelementptr inbounds i8, ptr %37, i64 48
  %39 = load ptr, ptr %38, align 8
  %40 = invoke noundef zeroext i1 %39(ptr noundef nonnull align 8 dereferenceable(88) %0, ptr noundef nonnull align 8 dereferenceable(16) %5, ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 4 dereferenceable(4) %3)
          to label %41 unwind label %47

41:                                               ; preds = %.critedge
  invoke void @_ZNSt13basic_fstreamIcSt11char_traitsIcEE5closeEv(ptr noundef nonnull align 8 dereferenceable(264) %5)
          to label %49 unwind label %47

42:                                               ; preds = %31
  %43 = landingpad { ptr, i32 }
          cleanup
  br label %.critedge24

44:                                               ; preds = %30
  %45 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %7) #5
  br label %.critedge24

.critedge24:                                      ; preds = %42, %44
  %46 = phi { ptr, i32 } [ %43, %42 ], [ %45, %44 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %6) #5
  br label %50

47:                                               ; preds = %41, %.critedge
  %48 = landingpad { ptr, i32 }
          cleanup
  br label %50

49:                                               ; preds = %41, %23
  %.0 = phi i1 [ false, %23 ], [ %40, %41 ]
  call void @_ZNSt13basic_fstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(264) %5) #5
  call void @llvm.lifetime.end.p0(i64 528, ptr nonnull %5) #5
  ret i1 %.0

50:                                               ; preds = %47, %.critedge24, %25
  %.pn = phi { ptr, i32 } [ %48, %47 ], [ %46, %.critedge24 ], [ %26, %25 ]
  call void @_ZNSt13basic_fstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(264) %5) #5
  call void @llvm.lifetime.end.p0(i64 528, ptr nonnull %5) #5
  resume { ptr, i32 } %.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5c_strEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt13basic_fstreamIcSt11char_traitsIcEEC1EPKcSt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef, i32 noundef) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef zeroext i1 @_ZNSt13basic_fstreamIcSt11char_traitsIcEE7is_openEv(ptr noundef nonnull align 8 dereferenceable(264)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE4goodEv(ptr noundef nonnull align 8 dereferenceable(264)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #3

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #3

declare noundef nonnull align 8 dereferenceable(224) ptr @_Z5omerrv() local_unnamed_addr #4

; 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 #1 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)) #3

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5rfindEPKcm(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 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 nounwind uwtable
declare void @_ZNSt13basic_fstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(264)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 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 = { 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 = { 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 #4 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { 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"}


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