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

; 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] }
%"struct.std::_Rb_tree_const_iterator.17" = type { ptr }
%"class.std::allocator.6" = type { i8 }
%"class.std::__cxx11::basic_istringstream" = type { %"class.std::basic_istream.base", %"class.std::__cxx11::basic_stringbuf", %"class.std::basic_ios" }
%"class.std::basic_istream.base" = type { ptr, i64 }
%"class.std::__cxx11::basic_stringbuf" = type { %"class.std::basic_streambuf", i32, %"class.std::__cxx11::basic_string" }
%"class.std::basic_streambuf" = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, %"class.std::locale" }
%"class.std::locale" = type { ptr }
%"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.OpenMesh::IO::_IOManager_" = type { %"class.std::set", %"class.std::set.0", %"class.std::__cxx11::basic_string", %"class.std::__cxx11::basic_string" }
%"class.std::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<OpenMesh::IO::BaseReader *, OpenMesh::IO::BaseReader *, std::_Identity<OpenMesh::IO::BaseReader *>, std::less<OpenMesh::IO::BaseReader *>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<OpenMesh::IO::BaseReader *, OpenMesh::IO::BaseReader *, std::_Identity<OpenMesh::IO::BaseReader *>, std::less<OpenMesh::IO::BaseReader *>>::_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 }
%"class.std::set.0" = type { %"class.std::_Rb_tree.1" }
%"class.std::_Rb_tree.1" = type { %"struct.std::_Rb_tree<OpenMesh::IO::BaseWriter *, OpenMesh::IO::BaseWriter *, std::_Identity<OpenMesh::IO::BaseWriter *>, std::less<OpenMesh::IO::BaseWriter *>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<OpenMesh::IO::BaseWriter *, OpenMesh::IO::BaseWriter *, std::_Identity<OpenMesh::IO::BaseWriter *>, std::less<OpenMesh::IO::BaseWriter *>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }

@.str.4 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [13 x i8], align 1

declare i32 @__gxx_personality_v0(...)

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIPN8OpenMesh2IO10BaseWriterESt4lessIS3_ESaIS3_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIPN8OpenMesh2IO10BaseWriterESt4lessIS3_ESaIS3_EE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIPN8OpenMesh2IO10BaseWriterEES6_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIPN8OpenMesh2IO10BaseWriterEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIPN8OpenMesh2IO10BaseWriterEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_RKS8_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef, ptr noundef nonnull align 8 dereferenceable(32)) #2

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

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) 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)) #1 align 2

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

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEOS8_PKS5_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) #3

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEEC1ERKNS_12basic_stringIcS2_S3_EESt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(120), ptr noundef nonnull align 8 dereferenceable(32), i32 noundef) unnamed_addr #2 align 2

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

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE3eofEv(ptr noundef nonnull align 8 dereferenceable(264)) #2 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) #4

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEPKc(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(120)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_SA_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN8OpenMesh2IO11_IOManager_20update_write_filtersEv(ptr noundef nonnull align 8 dereferenceable(160) %0) #2 align 2 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca %"struct.std::_Rb_tree_const_iterator.17", align 8
  %4 = alloca %"struct.std::_Rb_tree_const_iterator.17", align 8
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  %6 = alloca %"class.std::__cxx11::basic_string", align 8
  %7 = alloca %"class.std::__cxx11::basic_string", align 8
  %8 = alloca %"class.std::allocator.6", align 1
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca %"class.std::__cxx11::basic_string", align 8
  %12 = alloca %"class.std::__cxx11::basic_string", align 8
  %13 = alloca %"class.std::__cxx11::basic_istringstream", align 8
  %14 = alloca %"class.std::__cxx11::basic_string", align 8
  %15 = alloca %"class.std::__cxx11::basic_string", align 8
  %16 = alloca %"class.std::__cxx11::basic_string", align 8
  %17 = alloca %"class.std::__cxx11::basic_string", align 8
  %18 = alloca %"class.std::__cxx11::basic_string", align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %19 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  %20 = getelementptr inbounds %"class.OpenMesh::IO::_IOManager_", ptr %19, i32 0, i32 1
  %21 = call ptr @_ZNKSt3setIPN8OpenMesh2IO10BaseWriterESt4lessIS3_ESaIS3_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %20) #5
  %22 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator.17", ptr %3, i32 0, i32 0
  store ptr %21, ptr %22, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #5
  %23 = getelementptr inbounds %"class.OpenMesh::IO::_IOManager_", ptr %19, i32 0, i32 1
  %24 = call ptr @_ZNKSt3setIPN8OpenMesh2IO10BaseWriterESt4lessIS3_ESaIS3_EE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %23) #5
  %25 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator.17", ptr %4, i32 0, i32 0
  store ptr %24, ptr %25, align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr %5) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr %6) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #5
  br label %26

26:                                               ; preds = %116, %1
  %27 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIPN8OpenMesh2IO10BaseWriterEES6_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #5
  br i1 %27, label %28, label %122

28:                                               ; preds = %26
  call void @llvm.lifetime.start.p0(i64 32, ptr %7) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %8) #5
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #5
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %7, ptr noundef @.str.4, ptr noundef nonnull align 1 dereferenceable(1) %8)
          to label %29 unwind label %78

29:                                               ; preds = %28
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr %11) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr %12) #5
  %30 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIPN8OpenMesh2IO10BaseWriterEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #5
  %31 = load ptr, ptr %30, align 8, !tbaa !5
  %32 = load ptr, ptr %31, align 8, !tbaa !9
  %33 = getelementptr inbounds ptr, ptr %32, i64 2
  %34 = load ptr, ptr %33, align 8
  invoke void %34(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %12, ptr noundef nonnull align 8 dereferenceable(8) %31)
          to label %35 unwind label %82

35:                                               ; preds = %29
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEOS8_PKS5_(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %11, ptr noundef nonnull align 8 dereferenceable(32) %12, ptr noundef @.str.5)
          to label %36 unwind label %86

36:                                               ; preds = %35
  %37 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %6, ptr noundef nonnull align 8 dereferenceable(32) %11)
          to label %38 unwind label %90

38:                                               ; preds = %36
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %12) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %11) #5
  call void @llvm.lifetime.start.p0(i64 384, ptr %13) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr %14) #5
  %39 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIPN8OpenMesh2IO10BaseWriterEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #5
  %40 = load ptr, ptr %39, align 8, !tbaa !5
  %41 = load ptr, ptr %40, align 8, !tbaa !9
  %42 = getelementptr inbounds ptr, ptr %41, i64 3
  %43 = load ptr, ptr %42, align 8
  invoke void %43(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %14, ptr noundef nonnull align 8 dereferenceable(8) %40)
          to label %44 unwind label %96

44:                                               ; preds = %38
  invoke void @_ZNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEEC1ERKNS_12basic_stringIcS2_S3_EESt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(120) %13, ptr noundef nonnull align 8 dereferenceable(32) %14, i32 noundef 8)
          to label %45 unwind label %100

45:                                               ; preds = %44
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %14) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %14) #5
  br label %46

46:                                               ; preds = %77, %45
  %47 = load ptr, ptr %13, align 8, !tbaa !9
  %48 = getelementptr i8, ptr %47, i64 -24
  %49 = load i64, ptr %48, align 8
  %50 = getelementptr inbounds i8, ptr %13, i64 %49
  %51 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %50)
          to label %52 unwind label %105

52:                                               ; preds = %46
  br i1 %51, label %53, label %69

53:                                               ; preds = %52
  %54 = load ptr, ptr %13, align 8, !tbaa !9
  %55 = getelementptr i8, ptr %54, i64 -24
  %56 = load i64, ptr %55, align 8
  %57 = getelementptr inbounds i8, ptr %13, i64 %56
  %58 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE3eofEv(ptr noundef nonnull align 8 dereferenceable(264) %57)
          to label %59 unwind label %105

59:                                               ; preds = %53
  br i1 %58, label %69, label %60

60:                                               ; preds = %59
  %61 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) %13, ptr noundef nonnull align 8 dereferenceable(32) %7)
          to label %62 unwind label %105

62:                                               ; preds = %60
  %63 = load ptr, ptr %61, align 8, !tbaa !9
  %64 = getelementptr i8, ptr %63, i64 -24
  %65 = load i64, ptr %64, align 8
  %66 = getelementptr inbounds i8, ptr %61, i64 %65
  %67 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %66)
          to label %68 unwind label %105

68:                                               ; preds = %62
  br label %69

69:                                               ; preds = %68, %59, %52
  %70 = phi i1 [ false, %59 ], [ false, %52 ], [ %67, %68 ]
  br i1 %70, label %71, label %113

71:                                               ; preds = %69
  call void @llvm.lifetime.start.p0(i64 32, ptr %15) #5
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_RKS8_(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %15, ptr noundef @.str.6, ptr noundef nonnull align 8 dereferenceable(32) %7)
          to label %72 unwind label %109

72:                                               ; preds = %71
  %73 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %7, ptr noundef nonnull align 8 dereferenceable(32) %15) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %15) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %15) #5
  %74 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %6, ptr noundef nonnull align 8 dereferenceable(32) %7)
          to label %75 unwind label %105

75:                                               ; preds = %72
  %76 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef nonnull align 8 dereferenceable(32) %7)
          to label %77 unwind label %105

77:                                               ; preds = %75
  br label %46, !llvm.loop !11

78:                                               ; preds = %28
  %79 = landingpad { ptr, i32 }
          cleanup
  %80 = extractvalue { ptr, i32 } %79, 0
  store ptr %80, ptr %9, align 8
  %81 = extractvalue { ptr, i32 } %79, 1
  store i32 %81, ptr %10, align 4
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #5
  br label %121

82:                                               ; preds = %29
  %83 = landingpad { ptr, i32 }
          cleanup
  %84 = extractvalue { ptr, i32 } %83, 0
  store ptr %84, ptr %9, align 8
  %85 = extractvalue { ptr, i32 } %83, 1
  store i32 %85, ptr %10, align 4
  br label %95

86:                                               ; preds = %35
  %87 = landingpad { ptr, i32 }
          cleanup
  %88 = extractvalue { ptr, i32 } %87, 0
  store ptr %88, ptr %9, align 8
  %89 = extractvalue { ptr, i32 } %87, 1
  store i32 %89, ptr %10, align 4
  br label %94

90:                                               ; preds = %36
  %91 = landingpad { ptr, i32 }
          cleanup
  %92 = extractvalue { ptr, i32 } %91, 0
  store ptr %92, ptr %9, align 8
  %93 = extractvalue { ptr, i32 } %91, 1
  store i32 %93, ptr %10, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #5
  br label %94

94:                                               ; preds = %90, %86
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #5
  br label %95

95:                                               ; preds = %94, %82
  call void @llvm.lifetime.end.p0(i64 32, ptr %12) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %11) #5
  br label %120

96:                                               ; preds = %38
  %97 = landingpad { ptr, i32 }
          cleanup
  %98 = extractvalue { ptr, i32 } %97, 0
  store ptr %98, ptr %9, align 8
  %99 = extractvalue { ptr, i32 } %97, 1
  store i32 %99, ptr %10, align 4
  br label %104

100:                                              ; preds = %44
  %101 = landingpad { ptr, i32 }
          cleanup
  %102 = extractvalue { ptr, i32 } %101, 0
  store ptr %102, ptr %9, align 8
  %103 = extractvalue { ptr, i32 } %101, 1
  store i32 %103, ptr %10, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %14) #5
  br label %104

104:                                              ; preds = %100, %96
  call void @llvm.lifetime.end.p0(i64 32, ptr %14) #5
  br label %119

105:                                              ; preds = %113, %75, %72, %62, %60, %53, %46
  %106 = landingpad { ptr, i32 }
          cleanup
  %107 = extractvalue { ptr, i32 } %106, 0
  store ptr %107, ptr %9, align 8
  %108 = extractvalue { ptr, i32 } %106, 1
  store i32 %108, ptr %10, align 4
  br label %118

109:                                              ; preds = %71
  %110 = landingpad { ptr, i32 }
          cleanup
  %111 = extractvalue { ptr, i32 } %110, 0
  store ptr %111, ptr %9, align 8
  %112 = extractvalue { ptr, i32 } %110, 1
  store i32 %112, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 32, ptr %15) #5
  br label %118

113:                                              ; preds = %69
  %114 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEPKc(ptr noundef nonnull align 8 dereferenceable(32) %6, ptr noundef @.str.7)
          to label %115 unwind label %105

115:                                              ; preds = %113
  call void @_ZNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(120) %13) #5
  call void @llvm.lifetime.end.p0(i64 384, ptr %13) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %7) #5
  br label %116

116:                                              ; preds = %115
  %117 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIPN8OpenMesh2IO10BaseWriterEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #5
  br label %26, !llvm.loop !13

118:                                              ; preds = %109, %105
  call void @_ZNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(120) %13) #5
  br label %119

119:                                              ; preds = %118, %104
  call void @llvm.lifetime.end.p0(i64 384, ptr %13) #5
  br label %120

120:                                              ; preds = %119, %95
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #5
  br label %121

121:                                              ; preds = %120, %78
  call void @llvm.lifetime.end.p0(i64 32, ptr %7) #5
  br label %142

122:                                              ; preds = %26
  call void @llvm.lifetime.start.p0(i64 32, ptr %16) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr %17) #5
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_RKS8_(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %17, ptr noundef @.str.8, ptr noundef nonnull align 8 dereferenceable(32) %5)
          to label %123 unwind label %129

123:                                              ; preds = %122
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEOS8_PKS5_(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %16, ptr noundef nonnull align 8 dereferenceable(32) %17, ptr noundef @.str.7)
          to label %124 unwind label %133

124:                                              ; preds = %123
  %125 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef nonnull align 8 dereferenceable(32) %16) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %16) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %17) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %17) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %16) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr %18) #5
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_SA_(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %18, ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef nonnull align 8 dereferenceable(32) %6)
          to label %126 unwind label %138

126:                                              ; preds = %124
  %127 = getelementptr inbounds %"class.OpenMesh::IO::_IOManager_", ptr %19, i32 0, i32 3
  %128 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %127, ptr noundef nonnull align 8 dereferenceable(32) %18) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %18) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %18) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %6) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  ret void

129:                                              ; preds = %122
  %130 = landingpad { ptr, i32 }
          cleanup
  %131 = extractvalue { ptr, i32 } %130, 0
  store ptr %131, ptr %9, align 8
  %132 = extractvalue { ptr, i32 } %130, 1
  store i32 %132, ptr %10, align 4
  br label %137

133:                                              ; preds = %123
  %134 = landingpad { ptr, i32 }
          cleanup
  %135 = extractvalue { ptr, i32 } %134, 0
  store ptr %135, ptr %9, align 8
  %136 = extractvalue { ptr, i32 } %134, 1
  store i32 %136, ptr %10, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %17) #5
  br label %137

137:                                              ; preds = %133, %129
  call void @llvm.lifetime.end.p0(i64 32, ptr %17) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %16) #5
  br label %142

138:                                              ; preds = %124
  %139 = landingpad { ptr, i32 }
          cleanup
  %140 = extractvalue { ptr, i32 } %139, 0
  store ptr %140, ptr %9, align 8
  %141 = extractvalue { ptr, i32 } %139, 1
  store i32 %141, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 32, ptr %18) #5
  br label %142

142:                                              ; preds = %138, %137, %121
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %6) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  br label %143

143:                                              ; preds = %142
  %144 = load ptr, ptr %9, align 8
  %145 = load i32, ptr %10, align 4
  %146 = insertvalue { ptr, i32 } poison, ptr %144, 0
  %147 = insertvalue { ptr, i32 } %146, i32 %145, 1
  resume { ptr, i32 } %147
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { 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 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


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

%"class.std::__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.std::_Rb_tree_const_iterator.17" = type { ptr }
%"class.std::allocator.6" = type { i8 }
%"class.std::__cxx11::basic_istringstream" = type { %"class.std::basic_istream.base", %"class.std::__cxx11::basic_stringbuf", %"class.std::basic_ios" }
%"class.std::basic_istream.base" = type { ptr, i64 }
%"class.std::__cxx11::basic_stringbuf" = type { %"class.std::basic_streambuf", i32, %"class.std::__cxx11::basic_string" }
%"class.std::basic_streambuf" = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, %"class.std::locale" }
%"class.std::locale" = type { ptr }
%"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 }

@.str.4 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [13 x i8], align 1

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIPN8OpenMesh2IO10BaseWriterESt4lessIS3_ESaIS3_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIPN8OpenMesh2IO10BaseWriterESt4lessIS3_ESaIS3_EE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIPN8OpenMesh2IO10BaseWriterEES6_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIPN8OpenMesh2IO10BaseWriterEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIPN8OpenMesh2IO10BaseWriterEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_RKS8_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef, ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2

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

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) 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 #1 align 2

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

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEOS8_PKS5_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEEC1ERKNS_12basic_stringIcS2_S3_EESt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(120), ptr noundef nonnull align 8 dereferenceable(32), i32 noundef) unnamed_addr #2 align 2

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

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE3eofEv(ptr noundef nonnull align 8 dereferenceable(264)) local_unnamed_addr #2 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #4

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEPKc(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(120)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_SA_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN8OpenMesh2IO11_IOManager_20update_write_filtersEv(ptr noundef nonnull align 8 dereferenceable(160) %0) local_unnamed_addr #2 align 2 personality ptr @__gxx_personality_v0 {
  %2 = alloca %"struct.std::_Rb_tree_const_iterator.17", align 8
  %3 = alloca %"struct.std::_Rb_tree_const_iterator.17", align 8
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  %6 = alloca %"class.std::__cxx11::basic_string", align 8
  %7 = alloca %"class.std::allocator.6", align 1
  %8 = alloca %"class.std::__cxx11::basic_string", align 8
  %9 = alloca %"class.std::__cxx11::basic_string", align 8
  %10 = alloca %"class.std::__cxx11::basic_istringstream", align 8
  %11 = alloca %"class.std::__cxx11::basic_string", align 8
  %12 = alloca %"class.std::__cxx11::basic_string", align 8
  %13 = alloca %"class.std::__cxx11::basic_string", align 8
  %14 = alloca %"class.std::__cxx11::basic_string", align 8
  %15 = alloca %"class.std::__cxx11::basic_string", align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #5
  %16 = getelementptr inbounds i8, ptr %0, i64 48
  %17 = tail call ptr @_ZNKSt3setIPN8OpenMesh2IO10BaseWriterESt4lessIS3_ESaIS3_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %16) #5
  store ptr %17, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #5
  %18 = tail call ptr @_ZNKSt3setIPN8OpenMesh2IO10BaseWriterESt4lessIS3_ESaIS3_EE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %16) #5
  store ptr %18, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %4) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %5) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #5
  %19 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIPN8OpenMesh2IO10BaseWriterEES6_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #5
  br i1 %19, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %1, %84
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %6) #5
  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 %20 unwind label %66

20:                                               ; preds = %.lr.ph
  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
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %8) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %9) #5
  %21 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIPN8OpenMesh2IO10BaseWriterEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #5
  %22 = load ptr, ptr %21, align 8, !tbaa !5
  %23 = load ptr, ptr %22, align 8, !tbaa !9
  %24 = getelementptr inbounds i8, ptr %23, i64 16
  %25 = load ptr, ptr %24, align 8
  invoke void %25(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %9, ptr noundef nonnull align 8 dereferenceable(8) %22)
          to label %26 unwind label %68

26:                                               ; preds = %20
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEOS8_PKS5_(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %8, ptr noundef nonnull align 8 dereferenceable(32) %9, ptr noundef nonnull @.str.5)
          to label %27 unwind label %70

27:                                               ; preds = %26
  %28 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef nonnull align 8 dereferenceable(32) %8)
          to label %29 unwind label %72

29:                                               ; preds = %27
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %9) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %8) #5
  call void @llvm.lifetime.start.p0(i64 384, ptr nonnull %10) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %11) #5
  %30 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIPN8OpenMesh2IO10BaseWriterEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #5
  %31 = load ptr, ptr %30, align 8, !tbaa !5
  %32 = load ptr, ptr %31, align 8, !tbaa !9
  %33 = getelementptr inbounds i8, ptr %32, i64 24
  %34 = load ptr, ptr %33, align 8
  invoke void %34(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %11, ptr noundef nonnull align 8 dereferenceable(8) %31)
          to label %35 unwind label %76

35:                                               ; preds = %29
  invoke void @_ZNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEEC1ERKNS_12basic_stringIcS2_S3_EESt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(120) %10, ptr noundef nonnull align 8 dereferenceable(32) %11, i32 noundef 8)
          to label %36 unwind label %78

36:                                               ; preds = %35
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %11) #5
  br label %37

37:                                               ; preds = %64, %36
  %38 = load ptr, ptr %10, align 8, !tbaa !9
  %39 = getelementptr i8, ptr %38, i64 -24
  %40 = load i64, ptr %39, align 8
  %41 = getelementptr inbounds i8, ptr %10, i64 %40
  %42 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %41)
          to label %43 unwind label %.loopexit

43:                                               ; preds = %37
  br i1 %42, label %44, label %.critedge

44:                                               ; preds = %43
  %45 = load ptr, ptr %10, align 8, !tbaa !9
  %46 = getelementptr i8, ptr %45, i64 -24
  %47 = load i64, ptr %46, align 8
  %48 = getelementptr inbounds i8, ptr %10, i64 %47
  %49 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE3eofEv(ptr noundef nonnull align 8 dereferenceable(264) %48)
          to label %50 unwind label %.loopexit

50:                                               ; preds = %44
  br i1 %49, label %.critedge, label %51

51:                                               ; preds = %50
  %52 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) %10, ptr noundef nonnull align 8 dereferenceable(32) %6)
          to label %53 unwind label %.loopexit

53:                                               ; preds = %51
  %54 = load ptr, ptr %52, align 8, !tbaa !9
  %55 = getelementptr i8, ptr %54, i64 -24
  %56 = load i64, ptr %55, align 8
  %57 = getelementptr inbounds i8, ptr %52, i64 %56
  %58 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %57)
          to label %59 unwind label %.loopexit

59:                                               ; preds = %53
  br i1 %58, label %60, label %.critedge

60:                                               ; preds = %59
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %12) #5
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_RKS8_(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %12, ptr noundef nonnull @.str.6, ptr noundef nonnull align 8 dereferenceable(32) %6)
          to label %61 unwind label %81

61:                                               ; preds = %60
  %62 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %6, ptr noundef nonnull align 8 dereferenceable(32) %12) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %12) #5
  %63 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef nonnull align 8 dereferenceable(32) %6)
          to label %64 unwind label %.loopexit

64:                                               ; preds = %61
  %65 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef nonnull align 8 dereferenceable(32) %6)
          to label %37 unwind label %.loopexit, !llvm.loop !11

66:                                               ; preds = %.lr.ph
  %67 = 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 %90

68:                                               ; preds = %20
  %69 = landingpad { ptr, i32 }
          cleanup
  br label %75

70:                                               ; preds = %26
  %71 = landingpad { ptr, i32 }
          cleanup
  br label %74

72:                                               ; preds = %27
  %73 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #5
  br label %74

74:                                               ; preds = %72, %70
  %.pn12 = phi { ptr, i32 } [ %73, %72 ], [ %71, %70 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #5
  br label %75

75:                                               ; preds = %74, %68
  %.pn12.pn = phi { ptr, i32 } [ %.pn12, %74 ], [ %69, %68 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %9) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %8) #5
  br label %89

76:                                               ; preds = %29
  %77 = landingpad { ptr, i32 }
          cleanup
  br label %80

78:                                               ; preds = %35
  %79 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #5
  br label %80

80:                                               ; preds = %78, %76
  %.pn15 = phi { ptr, i32 } [ %79, %78 ], [ %77, %76 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %11) #5
  br label %88

.loopexit:                                        ; preds = %37, %44, %51, %53, %61, %64
  %lpad.loopexit = landingpad { ptr, i32 }
          cleanup
  br label %87

.loopexit.split-lp:                               ; preds = %.critedge
  %lpad.loopexit.split-lp = landingpad { ptr, i32 }
          cleanup
  br label %87

81:                                               ; preds = %60
  %82 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %12) #5
  br label %87

.critedge:                                        ; preds = %50, %43, %59
  %83 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEPKc(ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef nonnull @.str.7)
          to label %84 unwind label %.loopexit.split-lp

84:                                               ; preds = %.critedge
  call void @_ZNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(120) %10) #5
  call void @llvm.lifetime.end.p0(i64 384, ptr nonnull %10) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %6) #5
  %85 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIPN8OpenMesh2IO10BaseWriterEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #5
  %86 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIPN8OpenMesh2IO10BaseWriterEES6_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #5
  br i1 %86, label %.lr.ph, label %._crit_edge, !llvm.loop !13

87:                                               ; preds = %.loopexit, %.loopexit.split-lp, %81
  %.pn17 = phi { ptr, i32 } [ %82, %81 ], [ %lpad.loopexit, %.loopexit ], [ %lpad.loopexit.split-lp, %.loopexit.split-lp ]
  call void @_ZNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(120) %10) #5
  br label %88

88:                                               ; preds = %87, %80
  %.pn17.pn = phi { ptr, i32 } [ %.pn17, %87 ], [ %.pn15, %80 ]
  call void @llvm.lifetime.end.p0(i64 384, ptr nonnull %10) #5
  br label %89

89:                                               ; preds = %88, %75
  %.pn17.pn.pn = phi { ptr, i32 } [ %.pn17.pn, %88 ], [ %.pn12.pn, %75 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #5
  br label %90

90:                                               ; preds = %89, %66
  %.pn17.pn.pn.pn = phi { ptr, i32 } [ %.pn17.pn.pn, %89 ], [ %67, %66 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %6) #5
  br label %104

._crit_edge:                                      ; preds = %84, %1
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %13) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %14) #5
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_RKS8_(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %14, ptr noundef nonnull @.str.8, ptr noundef nonnull align 8 dereferenceable(32) %4)
          to label %91 unwind label %97

91:                                               ; preds = %._crit_edge
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEOS8_PKS5_(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %13, ptr noundef nonnull align 8 dereferenceable(32) %14, ptr noundef nonnull @.str.7)
          to label %92 unwind label %99

92:                                               ; preds = %91
  %93 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef nonnull align 8 dereferenceable(32) %13) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %13) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %14) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %14) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %13) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %15) #5
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_SA_(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %15, ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef nonnull align 8 dereferenceable(32) %5)
          to label %94 unwind label %102

94:                                               ; preds = %92
  %95 = getelementptr inbounds i8, ptr %0, i64 128
  %96 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_(ptr noundef nonnull align 8 dereferenceable(32) %95, ptr noundef nonnull align 8 dereferenceable(32) %15) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %15) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %15) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #5
  ret void

97:                                               ; preds = %._crit_edge
  %98 = landingpad { ptr, i32 }
          cleanup
  br label %101

99:                                               ; preds = %91
  %100 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %14) #5
  br label %101

101:                                              ; preds = %99, %97
  %.pn = phi { ptr, i32 } [ %100, %99 ], [ %98, %97 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %14) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %13) #5
  br label %104

102:                                              ; preds = %92
  %103 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %15) #5
  br label %104

104:                                              ; preds = %102, %101, %90
  %.pn17.pn.pn.pn.pn = phi { ptr, i32 } [ %.pn17.pn.pn.pn, %90 ], [ %103, %102 ], [ %.pn, %101 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #5
  resume { ptr, i32 } %.pn17.pn.pn.pn.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { 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 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


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