; LLVM IR from thuhcsi/Crystal.TTVS :: Xface/XFace/src/XEngine (VRML97Regularizer)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::basic_ofstream" = type { %"class.std::basic_ostream.base", %"class.std::basic_filebuf", %"class.std::basic_ios" }
%"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 }
%union.anon = 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::basic_ifstream" = type { %"class.std::basic_istream.base", %"class.std::basic_filebuf", %"class.std::basic_ios" }
%"class.std::basic_istream.base" = type { ptr, i64 }
%"class.std::fpos" = type { i64, %struct.__mbstate_t }
%"class.std::__cxx11::basic_stringstream" = type { %"class.std::basic_iostream.base", %"class.std::__cxx11::basic_stringbuf", %"class.std::basic_ios" }
%"class.std::basic_iostream.base" = type { %"class.std::basic_istream.base", %"class.std::basic_ostream.base" }
%"class.std::__cxx11::basic_stringbuf" = type { %"class.std::basic_streambuf", i32, %"class.std::__cxx11::basic_string" }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon.0 }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon.0 = type { i64, [8 x i8] }
%"class.std::allocator" = type { i8 }

@.str = external hidden unnamed_addr constant [15 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7XEngine17VRML97Regularizer10regularizeERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES8_(ptr noundef nonnull align 1 dereferenceable(1) %0, ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(32) %2) #0 align 2 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca %"class.std::basic_ofstream", align 8
  %8 = alloca %"class.std::basic_ifstream", align 8
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i64, align 8
  %13 = alloca %"class.std::fpos", align 8
  %14 = alloca ptr, align 8
  %15 = alloca %"class.std::__cxx11::basic_stringstream", align 8
  %16 = alloca %"class.std::__cxx11::basic_string", align 8
  %17 = alloca %"class.std::allocator", align 1
  %18 = alloca %"class.std::fpos", align 8
  %19 = alloca %"class.std::__cxx11::basic_string", align 8
  %20 = alloca %"class.std::__cxx11::basic_string", align 8
  %21 = alloca %"class.std::__cxx11::basic_string", align 8
  %22 = alloca %"class.std::fpos", align 8
  %23 = alloca %"class.std::fpos", align 8
  %24 = alloca %"class.std::fpos", align 8
  %25 = alloca %"class.std::fpos", align 8
  %26 = alloca %"class.std::fpos", align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  %27 = load ptr, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 512, ptr %7) #8
  %28 = load ptr, ptr %6, align 8, !tbaa !5
  %29 = call noundef ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5c_strEv(ptr noundef nonnull align 8 dereferenceable(32) %28) #8
  %30 = call noundef i32 @_ZStorSt13_Ios_OpenmodeS_(i32 noundef 16, i32 noundef 4)
  call void @_ZNSt14basic_ofstreamIcSt11char_traitsIcEEC1EPKcSt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(248) %7, ptr noundef %29, i32 noundef %30)
  call void @llvm.lifetime.start.p0(i64 520, ptr %8) #8
  %31 = load ptr, ptr %5, align 8, !tbaa !5
  %32 = call noundef ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5c_strEv(ptr noundef nonnull align 8 dereferenceable(32) %31) #8
  %33 = invoke noundef i32 @_ZStorSt13_Ios_OpenmodeS_(i32 noundef 8, i32 noundef 4)
          to label %34 unwind label %52

34:                                               ; preds = %3
  %35 = invoke noundef i32 @_ZStorSt13_Ios_OpenmodeS_(i32 noundef %33, i32 noundef 2)
          to label %36 unwind label %52

36:                                               ; preds = %34
  invoke void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEEC1EPKcSt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(256) %8, ptr noundef %32, i32 noundef %35)
          to label %37 unwind label %52

37:                                               ; preds = %36
  %38 = load ptr, ptr %8, align 8, !tbaa !9
  %39 = getelementptr i8, ptr %38, i64 -24
  %40 = load i64, ptr %39, align 8
  %41 = getelementptr inbounds i8, ptr %8, i64 %40
  %42 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE4failEv(ptr noundef nonnull align 8 dereferenceable(264) %41)
          to label %43 unwind label %56

43:                                               ; preds = %37
  br i1 %42, label %51, label %44

44:                                               ; preds = %43
  %45 = load ptr, ptr %7, align 8, !tbaa !9
  %46 = getelementptr i8, ptr %45, i64 -24
  %47 = load i64, ptr %46, align 8
  %48 = getelementptr inbounds i8, ptr %7, i64 %47
  %49 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE4failEv(ptr noundef nonnull align 8 dereferenceable(264) %48)
          to label %50 unwind label %56

50:                                               ; preds = %44
  br i1 %49, label %51, label %60

51:                                               ; preds = %50, %43
  store i32 1, ptr %11, align 4
  br label %179

52:                                               ; preds = %36, %34, %3
  %53 = landingpad { ptr, i32 }
          cleanup
  %54 = extractvalue { ptr, i32 } %53, 0
  store ptr %54, ptr %9, align 8
  %55 = extractvalue { ptr, i32 } %53, 1
  store i32 %55, ptr %10, align 4
  br label %188

56:                                               ; preds = %44, %37
  %57 = landingpad { ptr, i32 }
          cleanup
  %58 = extractvalue { ptr, i32 } %57, 0
  store ptr %58, ptr %9, align 8
  %59 = extractvalue { ptr, i32 } %57, 1
  store i32 %59, ptr %10, align 4
  br label %187

60:                                               ; preds = %50
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #8
  call void @llvm.lifetime.start.p0(i64 16, ptr %13) #8
  %61 = invoke { i64, i64 } @_ZNSi5tellgEv(ptr noundef nonnull align 8 dereferenceable(16) %8)
          to label %62 unwind label %126

62:                                               ; preds = %60
  %63 = getelementptr inbounds { i64, i64 }, ptr %13, i32 0, i32 0
  %64 = extractvalue { i64, i64 } %61, 0
  store i64 %64, ptr %63, align 8
  %65 = getelementptr inbounds { i64, i64 }, ptr %13, i32 0, i32 1
  %66 = extractvalue { i64, i64 } %61, 1
  store i64 %66, ptr %65, align 8
  %67 = invoke noundef i64 @_ZNKSt4fposI11__mbstate_tEcvlEv(ptr noundef nonnull align 8 dereferenceable(16) %13)
          to label %68 unwind label %126

68:                                               ; preds = %62
  call void @llvm.lifetime.end.p0(i64 16, ptr %13) #8
  store i64 %67, ptr %12, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #8
  %69 = load i64, ptr %12, align 8, !tbaa !11
  %70 = invoke noalias noundef nonnull ptr @_Znam(i64 noundef %69) #9
          to label %71 unwind label %130

71:                                               ; preds = %68
  store ptr %70, ptr %14, align 8, !tbaa !5
  %72 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi5seekgElSt12_Ios_Seekdir(ptr noundef nonnull align 8 dereferenceable(16) %8, i64 noundef 0, i32 noundef 0)
          to label %73 unwind label %130

73:                                               ; preds = %71
  %74 = load ptr, ptr %14, align 8, !tbaa !5
  %75 = load i64, ptr %12, align 8, !tbaa !11
  %76 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi4readEPcl(ptr noundef nonnull align 8 dereferenceable(16) %8, ptr noundef %74, i64 noundef %75)
          to label %77 unwind label %130

77:                                               ; preds = %73
  invoke void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEE5closeEv(ptr noundef nonnull align 8 dereferenceable(256) %8)
          to label %78 unwind label %130

78:                                               ; preds = %77
  call void @llvm.lifetime.start.p0(i64 392, ptr %15) #8
  call void @llvm.lifetime.start.p0(i64 32, ptr %16) #8
  %79 = load ptr, ptr %14, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %17) #8
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %17) #8
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %16, ptr noundef %79, ptr noundef nonnull align 1 dereferenceable(1) %17)
          to label %80 unwind label %134

80:                                               ; preds = %78
  %81 = invoke noundef i32 @_ZStorSt13_Ios_OpenmodeS_(i32 noundef 16, i32 noundef 8)
          to label %82 unwind label %138

82:                                               ; preds = %80
  invoke void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEEC1ERKNS_12basic_stringIcS2_S3_EESt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(128) %15, ptr noundef nonnull align 8 dereferenceable(32) %16, i32 noundef %81)
          to label %83 unwind label %138

83:                                               ; preds = %82
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %16) #8
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %17) #8
  call void @llvm.lifetime.end.p0(i64 1, ptr %17) #8
  call void @llvm.lifetime.end.p0(i64 32, ptr %16) #8
  call void @llvm.lifetime.start.p0(i64 16, ptr %18) #8
  invoke void @_ZNSt4fposI11__mbstate_tEC2El(ptr noundef nonnull align 8 dereferenceable(16) %18, i64 noundef 0)
          to label %84 unwind label %143

84:                                               ; preds = %83
  %85 = load ptr, ptr %14, align 8, !tbaa !5
  %86 = icmp eq ptr %85, null
  br i1 %86, label %88, label %87

87:                                               ; preds = %84
  call void @_ZdaPv(ptr noundef %85) #10
  br label %88

88:                                               ; preds = %87, %84
  call void @llvm.lifetime.start.p0(i64 32, ptr %19) #8
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %19) #8
  call void @llvm.lifetime.start.p0(i64 32, ptr %20) #8
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %20) #8
  call void @llvm.lifetime.start.p0(i64 32, ptr %21) #8
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %21) #8
  br label %89

89:                                               ; preds = %155, %88
  %90 = 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) %15, ptr noundef nonnull align 8 dereferenceable(32) %20)
          to label %91 unwind label %147

91:                                               ; preds = %89
  %92 = load ptr, ptr %90, align 8, !tbaa !9
  %93 = getelementptr i8, ptr %92, i64 -24
  %94 = load i64, ptr %93, align 8
  %95 = getelementptr inbounds i8, ptr %90, i64 %94
  %96 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %95)
          to label %97 unwind label %147

97:                                               ; preds = %91
  br i1 %96, label %98, label %156

98:                                               ; preds = %97
  %99 = invoke noundef zeroext i1 @_ZSteqIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32) %20, ptr noundef @.str)
          to label %100 unwind label %147

100:                                              ; preds = %98
  br i1 %99, label %101, label %155

101:                                              ; preds = %100
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %22, ptr align 8 %18, i64 16, i1 false), !tbaa.struct !13
  %102 = invoke { i64, i64 } @_ZNSi5tellgEv(ptr noundef nonnull align 8 dereferenceable(16) %15)
          to label %103 unwind label %147

103:                                              ; preds = %101
  %104 = getelementptr inbounds { i64, i64 }, ptr %23, i32 0, i32 0
  %105 = extractvalue { i64, i64 } %102, 0
  store i64 %105, ptr %104, align 8
  %106 = getelementptr inbounds { i64, i64 }, ptr %23, i32 0, i32 1
  %107 = extractvalue { i64, i64 } %102, 1
  store i64 %107, ptr %106, align 8
  %108 = getelementptr inbounds { i64, i64 }, ptr %22, i32 0, i32 0
  %109 = load i64, ptr %108, align 8
  %110 = getelementptr inbounds { i64, i64 }, ptr %22, i32 0, i32 1
  %111 = load i64, ptr %110, align 8
  %112 = getelementptr inbounds { i64, i64 }, ptr %23, i32 0, i32 0
  %113 = load i64, ptr %112, align 8
  %114 = getelementptr inbounds { i64, i64 }, ptr %23, i32 0, i32 1
  %115 = load i64, ptr %114, align 8
  invoke void @_ZNK7XEngine17VRML97Regularizer8readTillERSiSt4fposI11__mbstate_tES4_RNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 1 dereferenceable(1) %27, ptr noundef nonnull align 8 dereferenceable(16) %15, i64 %109, i64 %111, i64 %113, i64 %115, ptr noundef nonnull align 8 dereferenceable(32) %21)
          to label %116 unwind label %147

116:                                              ; preds = %103
  %117 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %19, ptr noundef nonnull align 8 dereferenceable(32) %21)
          to label %118 unwind label %147

118:                                              ; preds = %116
  call void @llvm.lifetime.start.p0(i64 16, ptr %24) #8
  %119 = invoke { i64, i64 } @_ZNSi5tellgEv(ptr noundef nonnull align 8 dereferenceable(16) %15)
          to label %120 unwind label %151

120:                                              ; preds = %118
  %121 = getelementptr inbounds { i64, i64 }, ptr %24, i32 0, i32 0
  %122 = extractvalue { i64, i64 } %119, 0
  store i64 %122, ptr %121, align 8
  %123 = getelementptr inbounds { i64, i64 }, ptr %24, i32 0, i32 1
  %124 = extractvalue { i64, i64 } %119, 1
  store i64 %124, ptr %123, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %18, ptr align 8 %24, i64 16, i1 false), !tbaa.struct !13
  call void @llvm.lifetime.end.p0(i64 16, ptr %24) #8
  invoke void @_ZNK7XEngine17VRML97Regularizer16onIndexedFaceSetERSiRSt4fposI11__mbstate_tERNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 1 dereferenceable(1) %27, ptr noundef nonnull align 8 dereferenceable(16) %15, ptr noundef nonnull align 8 dereferenceable(16) %18, ptr noundef nonnull align 8 dereferenceable(32) %19)
          to label %125 unwind label %147

125:                                              ; preds = %120
  br label %155

126:                                              ; preds = %62, %60
  %127 = landingpad { ptr, i32 }
          cleanup
  %128 = extractvalue { ptr, i32 } %127, 0
  store ptr %128, ptr %9, align 8
  %129 = extractvalue { ptr, i32 } %127, 1
  store i32 %129, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 16, ptr %13) #8
  br label %186

130:                                              ; preds = %77, %73, %71, %68
  %131 = landingpad { ptr, i32 }
          cleanup
  %132 = extractvalue { ptr, i32 } %131, 0
  store ptr %132, ptr %9, align 8
  %133 = extractvalue { ptr, i32 } %131, 1
  store i32 %133, ptr %10, align 4
  br label %185

134:                                              ; preds = %78
  %135 = landingpad { ptr, i32 }
          cleanup
  %136 = extractvalue { ptr, i32 } %135, 0
  store ptr %136, ptr %9, align 8
  %137 = extractvalue { ptr, i32 } %135, 1
  store i32 %137, ptr %10, align 4
  br label %142

138:                                              ; preds = %82, %80
  %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 @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %16) #8
  br label %142

142:                                              ; preds = %138, %134
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %17) #8
  call void @llvm.lifetime.end.p0(i64 1, ptr %17) #8
  call void @llvm.lifetime.end.p0(i64 32, ptr %16) #8
  br label %184

143:                                              ; preds = %83
  %144 = landingpad { ptr, i32 }
          cleanup
  %145 = extractvalue { ptr, i32 } %144, 0
  store ptr %145, ptr %9, align 8
  %146 = extractvalue { ptr, i32 } %144, 1
  store i32 %146, ptr %10, align 4
  br label %183

147:                                              ; preds = %174, %172, %163, %161, %156, %120, %116, %103, %101, %98, %91, %89
  %148 = landingpad { ptr, i32 }
          cleanup
  %149 = extractvalue { ptr, i32 } %148, 0
  store ptr %149, ptr %9, align 8
  %150 = extractvalue { ptr, i32 } %148, 1
  store i32 %150, ptr %10, align 4
  br label %182

151:                                              ; preds = %118
  %152 = landingpad { ptr, i32 }
          cleanup
  %153 = extractvalue { ptr, i32 } %152, 0
  store ptr %153, ptr %9, align 8
  %154 = extractvalue { ptr, i32 } %152, 1
  store i32 %154, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 16, ptr %24) #8
  br label %182

155:                                              ; preds = %125, %100
  br label %89, !llvm.loop !17

156:                                              ; preds = %97
  %157 = load ptr, ptr %15, align 8, !tbaa !9
  %158 = getelementptr i8, ptr %157, i64 -24
  %159 = load i64, ptr %158, align 8
  %160 = getelementptr inbounds i8, ptr %15, i64 %159
  invoke void @_ZNSt9basic_iosIcSt11char_traitsIcEE5clearESt12_Ios_Iostate(ptr noundef nonnull align 8 dereferenceable(264) %160, i32 noundef 0)
          to label %161 unwind label %147

161:                                              ; preds = %156
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %25, ptr align 8 %18, i64 16, i1 false), !tbaa.struct !13
  %162 = load i64, ptr %12, align 8, !tbaa !11
  invoke void @_ZNSt4fposI11__mbstate_tEC2El(ptr noundef nonnull align 8 dereferenceable(16) %26, i64 noundef %162)
          to label %163 unwind label %147

163:                                              ; preds = %161
  %164 = getelementptr inbounds { i64, i64 }, ptr %25, i32 0, i32 0
  %165 = load i64, ptr %164, align 8
  %166 = getelementptr inbounds { i64, i64 }, ptr %25, i32 0, i32 1
  %167 = load i64, ptr %166, align 8
  %168 = getelementptr inbounds { i64, i64 }, ptr %26, i32 0, i32 0
  %169 = load i64, ptr %168, align 8
  %170 = getelementptr inbounds { i64, i64 }, ptr %26, i32 0, i32 1
  %171 = load i64, ptr %170, align 8
  invoke void @_ZNK7XEngine17VRML97Regularizer8readTillERSiSt4fposI11__mbstate_tES4_RNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 1 dereferenceable(1) %27, ptr noundef nonnull align 8 dereferenceable(16) %15, i64 %165, i64 %167, i64 %169, i64 %171, ptr noundef nonnull align 8 dereferenceable(32) %21)
          to label %172 unwind label %147

172:                                              ; preds = %163
  %173 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %19, ptr noundef nonnull align 8 dereferenceable(32) %21)
          to label %174 unwind label %147

174:                                              ; preds = %172
  %175 = call noundef ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5c_strEv(ptr noundef nonnull align 8 dereferenceable(32) %19) #8
  %176 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %19) #8
  %177 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSo5writeEPKcl(ptr noundef nonnull align 8 dereferenceable(8) %7, ptr noundef %175, i64 noundef %176)
          to label %178 unwind label %147

178:                                              ; preds = %174
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %21) #8
  call void @llvm.lifetime.end.p0(i64 32, ptr %21) #8
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %20) #8
  call void @llvm.lifetime.end.p0(i64 32, ptr %20) #8
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %19) #8
  call void @llvm.lifetime.end.p0(i64 32, ptr %19) #8
  call void @llvm.lifetime.end.p0(i64 16, ptr %18) #8
  call void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(128) %15) #8
  call void @llvm.lifetime.end.p0(i64 392, ptr %15) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #8
  store i32 0, ptr %11, align 4
  br label %179

179:                                              ; preds = %178, %51
  call void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(256) %8) #8
  call void @llvm.lifetime.end.p0(i64 520, ptr %8) #8
  call void @_ZNSt14basic_ofstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(248) %7) #8
  call void @llvm.lifetime.end.p0(i64 512, ptr %7) #8
  %180 = load i32, ptr %11, align 4
  switch i32 %180, label %194 [
    i32 0, label %181
    i32 1, label %181
  ]

181:                                              ; preds = %179, %179
  ret void

182:                                              ; preds = %151, %147
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %21) #8
  call void @llvm.lifetime.end.p0(i64 32, ptr %21) #8
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %20) #8
  call void @llvm.lifetime.end.p0(i64 32, ptr %20) #8
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %19) #8
  call void @llvm.lifetime.end.p0(i64 32, ptr %19) #8
  br label %183

183:                                              ; preds = %182, %143
  call void @llvm.lifetime.end.p0(i64 16, ptr %18) #8
  call void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(128) %15) #8
  br label %184

184:                                              ; preds = %183, %142
  call void @llvm.lifetime.end.p0(i64 392, ptr %15) #8
  br label %185

185:                                              ; preds = %184, %130
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #8
  br label %186

186:                                              ; preds = %185, %126
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #8
  br label %187

187:                                              ; preds = %186, %56
  call void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(256) %8) #8
  br label %188

188:                                              ; preds = %187, %52
  call void @llvm.lifetime.end.p0(i64 520, ptr %8) #8
  call void @_ZNSt14basic_ofstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(248) %7) #8
  call void @llvm.lifetime.end.p0(i64 512, ptr %7) #8
  br label %189

189:                                              ; preds = %188
  %190 = load ptr, ptr %9, align 8
  %191 = load i32, ptr %10, align 4
  %192 = insertvalue { ptr, i32 } poison, ptr %190, 0
  %193 = insertvalue { ptr, i32 } %192, i32 %191, 1
  resume { ptr, i32 } %193

194:                                              ; preds = %179
  unreachable
}

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

; 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZStorSt13_Ios_OpenmodeS_(i32 noundef, i32 noundef) #3

; Function Attrs: mustprogress uwtable
declare void @_ZNSt14basic_ofstreamIcSt11char_traitsIcEEC1EPKcSt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(248), ptr noundef, i32 noundef) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEEC1EPKcSt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(256), ptr noundef, i32 noundef) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE4failEv(ptr noundef nonnull align 8 dereferenceable(264)) #0 align 2

declare { i64, i64 } @_ZNSi5tellgEv(ptr noundef nonnull align 8 dereferenceable(16)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt4fposI11__mbstate_tEcvlEv(ptr noundef nonnull align 8 dereferenceable(16)) #2 align 2

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

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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi5seekgElSt12_Ios_Seekdir(ptr noundef nonnull align 8 dereferenceable(16), i64 noundef, i32 noundef) #4

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi4readEPcl(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef, i64 noundef) #4

; Function Attrs: mustprogress uwtable
declare void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEE5closeEv(ptr noundef nonnull align 8 dereferenceable(256)) #0 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 #0 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEEC1ERKNS_12basic_stringIcS2_S3_EESt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(128), ptr noundef nonnull align 8 dereferenceable(32), i32 noundef) unnamed_addr #0 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4fposI11__mbstate_tEC2El(ptr noundef nonnull align 8 dereferenceable(16), i64 noundef) unnamed_addr #2 align 2

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) #6

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

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

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264)) #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZSteqIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) #3

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNK7XEngine17VRML97Regularizer8readTillERSiSt4fposI11__mbstate_tES4_RNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 8 dereferenceable(16), i64, i64, i64, i64, ptr noundef nonnull align 8 dereferenceable(32)) #0 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #7

; 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)) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNK7XEngine17VRML97Regularizer16onIndexedFaceSetERSiRSt4fposI11__mbstate_tERNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) #0 align 2

declare void @_ZNSt9basic_iosIcSt11char_traitsIcEE5clearESt12_Ios_Iostate(ptr noundef nonnull align 8 dereferenceable(264), i32 noundef) #4

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSo5writeEPKcl(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef, i64 noundef) #4

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(128)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(256)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt14basic_ofstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(248)) 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 uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { "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 = { nobuiltin allocsize(0) "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #6 = { nobuiltin nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #7 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #8 = { nounwind }
attributes #9 = { builtin allocsize(0) }
attributes #10 = { builtin 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 = !{i64 0, i64 8, !11, i64 8, i64 4, !14, i64 12, i64 4, !16}
!14 = !{!15, !15, i64 0}
!15 = !{!"int", !7, i64 0}
!16 = !{!7, !7, i64 0}
!17 = distinct !{!17, !18}
!18 = !{!"llvm.loop.mustprogress"}


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

%"class.std::basic_ofstream" = type { %"class.std::basic_ostream.base", %"class.std::basic_filebuf", %"class.std::basic_ios" }
%"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 }
%union.anon = 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::basic_ifstream" = type { %"class.std::basic_istream.base", %"class.std::basic_filebuf", %"class.std::basic_ios" }
%"class.std::basic_istream.base" = type { ptr, i64 }
%"class.std::fpos" = type { i64, %struct.__mbstate_t }
%"class.std::__cxx11::basic_stringstream" = type { %"class.std::basic_iostream.base", %"class.std::__cxx11::basic_stringbuf", %"class.std::basic_ios" }
%"class.std::basic_iostream.base" = type { %"class.std::basic_istream.base", %"class.std::basic_ostream.base" }
%"class.std::__cxx11::basic_stringbuf" = type { %"class.std::basic_streambuf", i32, %"class.std::__cxx11::basic_string" }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon.0 }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon.0 = type { i64, [8 x i8] }
%"class.std::allocator" = type { i8 }

@.str = external hidden unnamed_addr constant [15 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7XEngine17VRML97Regularizer10regularizeERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES8_(ptr noundef nonnull align 1 dereferenceable(1) %0, ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(32) %2) local_unnamed_addr #0 align 2 personality ptr @__gxx_personality_v0 {
  %4 = alloca %"class.std::basic_ofstream", align 8
  %5 = alloca %"class.std::basic_ifstream", align 8
  %6 = alloca %"class.std::fpos", align 8
  %7 = alloca %"class.std::__cxx11::basic_stringstream", align 8
  %8 = alloca %"class.std::__cxx11::basic_string", align 8
  %9 = alloca %"class.std::allocator", align 1
  %10 = alloca %"class.std::fpos", 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::fpos", align 8
  call void @llvm.lifetime.start.p0(i64 512, ptr nonnull %4) #7
  %15 = tail call noundef ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5c_strEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #7
  %16 = tail call noundef i32 @_ZStorSt13_Ios_OpenmodeS_(i32 noundef 16, i32 noundef 4)
  call void @_ZNSt14basic_ofstreamIcSt11char_traitsIcEEC1EPKcSt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(248) %4, ptr noundef %15, i32 noundef %16)
  call void @llvm.lifetime.start.p0(i64 520, ptr nonnull %5) #7
  %17 = call noundef ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5c_strEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #7
  %18 = call noundef i32 @_ZStorSt13_Ios_OpenmodeS_(i32 noundef 8, i32 noundef 4)
  %19 = call noundef i32 @_ZStorSt13_Ios_OpenmodeS_(i32 noundef %18, i32 noundef 2)
  invoke void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEEC1EPKcSt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(256) %5, ptr noundef %17, i32 noundef %19)
          to label %20 unwind label %34

20:                                               ; preds = %3
  %21 = load ptr, ptr %5, align 8, !tbaa !5
  %22 = getelementptr i8, ptr %21, i64 -24
  %23 = load i64, ptr %22, align 8
  %24 = getelementptr inbounds i8, ptr %5, i64 %23
  %25 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE4failEv(ptr noundef nonnull align 8 dereferenceable(264) %24)
          to label %26 unwind label %36

26:                                               ; preds = %20
  br i1 %25, label %105, label %27

27:                                               ; preds = %26
  %28 = load ptr, ptr %4, align 8, !tbaa !5
  %29 = getelementptr i8, ptr %28, i64 -24
  %30 = load i64, ptr %29, align 8
  %31 = getelementptr inbounds i8, ptr %4, i64 %30
  %32 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE4failEv(ptr noundef nonnull align 8 dereferenceable(264) %31)
          to label %33 unwind label %36

33:                                               ; preds = %27
  br i1 %32, label %105, label %38

34:                                               ; preds = %3
  %35 = landingpad { ptr, i32 }
          cleanup
  br label %109

36:                                               ; preds = %27, %20
  %37 = landingpad { ptr, i32 }
          cleanup
  br label %108

38:                                               ; preds = %33
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %6) #7
  %39 = invoke { i64, i64 } @_ZNSi5tellgEv(ptr noundef nonnull align 8 dereferenceable(16) %5)
          to label %40 unwind label %78

40:                                               ; preds = %38
  %41 = extractvalue { i64, i64 } %39, 0
  store i64 %41, ptr %6, align 8
  %42 = getelementptr inbounds i8, ptr %6, i64 8
  %43 = extractvalue { i64, i64 } %39, 1
  store i64 %43, ptr %42, align 8
  %44 = call noundef i64 @_ZNKSt4fposI11__mbstate_tEcvlEv(ptr noundef nonnull align 8 dereferenceable(16) %6)
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %6) #7
  %45 = invoke noalias noundef nonnull ptr @_Znam(i64 noundef %44) #8
          to label %46 unwind label %80

46:                                               ; preds = %40
  %47 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi5seekgElSt12_Ios_Seekdir(ptr noundef nonnull align 8 dereferenceable(16) %5, i64 noundef 0, i32 noundef 0)
          to label %48 unwind label %80

48:                                               ; preds = %46
  %49 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi4readEPcl(ptr noundef nonnull align 8 dereferenceable(16) %5, ptr noundef nonnull %45, i64 noundef %44)
          to label %50 unwind label %80

50:                                               ; preds = %48
  invoke void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEE5closeEv(ptr noundef nonnull align 8 dereferenceable(256) %5)
          to label %51 unwind label %80

51:                                               ; preds = %50
  call void @llvm.lifetime.start.p0(i64 392, ptr nonnull %7) #7
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %8) #7
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %9) #7
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #7
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %8, ptr noundef nonnull %45, ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %52 unwind label %82

52:                                               ; preds = %51
  %53 = call noundef i32 @_ZStorSt13_Ios_OpenmodeS_(i32 noundef 16, i32 noundef 8)
  invoke void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEEC1ERKNS_12basic_stringIcS2_S3_EESt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(128) %7, ptr noundef nonnull align 8 dereferenceable(32) %8, i32 noundef %53)
          to label %54 unwind label %84

54:                                               ; preds = %52
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #7
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %9) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %8) #7
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %10) #7
  call void @_ZNSt4fposI11__mbstate_tEC2El(ptr noundef nonnull align 8 dereferenceable(16) %10, i64 noundef 0)
  call void @_ZdaPv(ptr noundef nonnull %45) #9
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %11) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #7
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %12) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #7
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %13) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %13) #7
  %.sroa.25.0..sroa_idx = getelementptr inbounds i8, ptr %10, i64 8
  br label %55

55:                                               ; preds = %.backedge, %54
  %56 = 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) %7, ptr noundef nonnull align 8 dereferenceable(32) %12)
          to label %57 unwind label %.loopexit

57:                                               ; preds = %55
  %58 = load ptr, ptr %56, align 8, !tbaa !5
  %59 = getelementptr i8, ptr %58, i64 -24
  %60 = load i64, ptr %59, align 8
  %61 = getelementptr inbounds i8, ptr %56, i64 %60
  %62 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264) %61)
          to label %63 unwind label %.loopexit

63:                                               ; preds = %57
  br i1 %62, label %64, label %89

64:                                               ; preds = %63
  %65 = call noundef zeroext i1 @_ZSteqIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32) %12, ptr noundef nonnull @.str)
  br i1 %65, label %66, label %.backedge

66:                                               ; preds = %64
  %.sroa.04.0.copyload = load i64, ptr %10, align 8, !tbaa !8
  %.sroa.25.0.copyload = load i64, ptr %.sroa.25.0..sroa_idx, align 8
  %67 = invoke { i64, i64 } @_ZNSi5tellgEv(ptr noundef nonnull align 8 dereferenceable(16) %7)
          to label %68 unwind label %.loopexit

68:                                               ; preds = %66
  %69 = extractvalue { i64, i64 } %67, 0
  %70 = extractvalue { i64, i64 } %67, 1
  invoke void @_ZNK7XEngine17VRML97Regularizer8readTillERSiSt4fposI11__mbstate_tES4_RNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 1 dereferenceable(1) %0, ptr noundef nonnull align 8 dereferenceable(16) %7, i64 %.sroa.04.0.copyload, i64 %.sroa.25.0.copyload, i64 %69, i64 %70, ptr noundef nonnull align 8 dereferenceable(32) %13)
          to label %71 unwind label %.loopexit

71:                                               ; preds = %68
  %72 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %11, ptr noundef nonnull align 8 dereferenceable(32) %13)
          to label %73 unwind label %.loopexit

73:                                               ; preds = %71
  %74 = invoke { i64, i64 } @_ZNSi5tellgEv(ptr noundef nonnull align 8 dereferenceable(16) %7)
          to label %75 unwind label %87

75:                                               ; preds = %73
  %76 = extractvalue { i64, i64 } %74, 0
  %77 = extractvalue { i64, i64 } %74, 1
  store i64 %76, ptr %10, align 8, !tbaa !8
  store i64 %77, ptr %.sroa.25.0..sroa_idx, align 8
  invoke void @_ZNK7XEngine17VRML97Regularizer16onIndexedFaceSetERSiRSt4fposI11__mbstate_tERNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 1 dereferenceable(1) %0, ptr noundef nonnull align 8 dereferenceable(16) %7, ptr noundef nonnull align 8 dereferenceable(16) %10, ptr noundef nonnull align 8 dereferenceable(32) %11)
          to label %.backedge unwind label %.loopexit

.backedge:                                        ; preds = %75, %64
  br label %55, !llvm.loop !11

78:                                               ; preds = %38
  %79 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %6) #7
  br label %108

80:                                               ; preds = %50, %48, %46, %40
  %81 = landingpad { ptr, i32 }
          cleanup
  br label %108

82:                                               ; preds = %51
  %83 = landingpad { ptr, i32 }
          cleanup
  br label %86

84:                                               ; preds = %52
  %85 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #7
  br label %86

86:                                               ; preds = %84, %82
  %.pn = phi { ptr, i32 } [ %85, %84 ], [ %83, %82 ]
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %9) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %8) #7
  br label %107

.loopexit:                                        ; preds = %55, %57, %66, %68, %71, %75
  %lpad.loopexit = landingpad { ptr, i32 }
          cleanup
  br label %106

.loopexit.split-lp:                               ; preds = %89, %94, %98, %100
  %lpad.loopexit.split-lp = landingpad { ptr, i32 }
          cleanup
  br label %106

87:                                               ; preds = %73
  %88 = landingpad { ptr, i32 }
          cleanup
  br label %106

89:                                               ; preds = %63
  %90 = load ptr, ptr %7, align 8, !tbaa !5
  %91 = getelementptr i8, ptr %90, i64 -24
  %92 = load i64, ptr %91, align 8
  %93 = getelementptr inbounds i8, ptr %7, i64 %92
  invoke void @_ZNSt9basic_iosIcSt11char_traitsIcEE5clearESt12_Ios_Iostate(ptr noundef nonnull align 8 dereferenceable(264) %93, i32 noundef 0)
          to label %94 unwind label %.loopexit.split-lp

94:                                               ; preds = %89
  %.sroa.0.0.copyload = load i64, ptr %10, align 8, !tbaa !8
  %.sroa.2.0.copyload = load i64, ptr %.sroa.25.0..sroa_idx, align 8
  call void @_ZNSt4fposI11__mbstate_tEC2El(ptr noundef nonnull align 8 dereferenceable(16) %14, i64 noundef %44)
  %95 = load i64, ptr %14, align 8
  %96 = getelementptr inbounds i8, ptr %14, i64 8
  %97 = load i64, ptr %96, align 8
  invoke void @_ZNK7XEngine17VRML97Regularizer8readTillERSiSt4fposI11__mbstate_tES4_RNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 1 dereferenceable(1) %0, ptr noundef nonnull align 8 dereferenceable(16) %7, i64 %.sroa.0.0.copyload, i64 %.sroa.2.0.copyload, i64 %95, i64 %97, ptr noundef nonnull align 8 dereferenceable(32) %13)
          to label %98 unwind label %.loopexit.split-lp

98:                                               ; preds = %94
  %99 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %11, ptr noundef nonnull align 8 dereferenceable(32) %13)
          to label %100 unwind label %.loopexit.split-lp

100:                                              ; preds = %98
  %101 = call noundef ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5c_strEv(ptr noundef nonnull align 8 dereferenceable(32) %11) #7
  %102 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %11) #7
  %103 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSo5writeEPKcl(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef %101, i64 noundef %102)
          to label %104 unwind label %.loopexit.split-lp

104:                                              ; preds = %100
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %13) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %13) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %12) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %11) #7
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %10) #7
  call void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(128) %7) #7
  call void @llvm.lifetime.end.p0(i64 392, ptr nonnull %7) #7
  br label %105

105:                                              ; preds = %26, %33, %104
  call void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(256) %5) #7
  call void @llvm.lifetime.end.p0(i64 520, ptr nonnull %5) #7
  call void @_ZNSt14basic_ofstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(248) %4) #7
  call void @llvm.lifetime.end.p0(i64 512, ptr nonnull %4) #7
  ret void

106:                                              ; preds = %.loopexit, %.loopexit.split-lp, %87
  %.pn23 = phi { ptr, i32 } [ %88, %87 ], [ %lpad.loopexit, %.loopexit ], [ %lpad.loopexit.split-lp, %.loopexit.split-lp ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %13) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %13) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %12) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %11) #7
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %10) #7
  call void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(128) %7) #7
  br label %107

107:                                              ; preds = %106, %86
  %.pn23.pn = phi { ptr, i32 } [ %.pn23, %106 ], [ %.pn, %86 ]
  call void @llvm.lifetime.end.p0(i64 392, ptr nonnull %7) #7
  br label %108

108:                                              ; preds = %78, %107, %80, %36
  %.pn23.pn.pn.pn.pn = phi { ptr, i32 } [ %37, %36 ], [ %79, %78 ], [ %.pn23.pn, %107 ], [ %81, %80 ]
  call void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(256) %5) #7
  br label %109

109:                                              ; preds = %108, %34
  %.pn23.pn.pn.pn.pn.pn = phi { ptr, i32 } [ %.pn23.pn.pn.pn.pn, %108 ], [ %35, %34 ]
  call void @llvm.lifetime.end.p0(i64 520, ptr nonnull %5) #7
  call void @_ZNSt14basic_ofstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(248) %4) #7
  call void @llvm.lifetime.end.p0(i64 512, ptr nonnull %4) #7
  resume { ptr, i32 } %.pn23.pn.pn.pn.pn.pn
}

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

; 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZStorSt13_Ios_OpenmodeS_(i32 noundef, i32 noundef) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare void @_ZNSt14basic_ofstreamIcSt11char_traitsIcEEC1EPKcSt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(248), ptr noundef, i32 noundef) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEEC1EPKcSt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(256), ptr noundef, i32 noundef) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE4failEv(ptr noundef nonnull align 8 dereferenceable(264)) local_unnamed_addr #0 align 2

declare { i64, i64 } @_ZNSi5tellgEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt4fposI11__mbstate_tEcvlEv(ptr noundef nonnull align 8 dereferenceable(16)) local_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) #1

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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi5seekgElSt12_Ios_Seekdir(ptr noundef nonnull align 8 dereferenceable(16), i64 noundef, i32 noundef) local_unnamed_addr #4

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi4readEPcl(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef, i64 noundef) local_unnamed_addr #4

; Function Attrs: mustprogress uwtable
declare void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEE5closeEv(ptr noundef nonnull align 8 dereferenceable(256)) local_unnamed_addr #0 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 #0 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEEC1ERKNS_12basic_stringIcS2_S3_EESt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(128), ptr noundef nonnull align 8 dereferenceable(32), i32 noundef) unnamed_addr #0 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4fposI11__mbstate_tEC2El(ptr noundef nonnull align 8 dereferenceable(16), i64 noundef) unnamed_addr #2 align 2

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) local_unnamed_addr #6

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

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

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv(ptr noundef nonnull align 8 dereferenceable(264)) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZSteqIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNK7XEngine17VRML97Regularizer8readTillERSiSt4fposI11__mbstate_tES4_RNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 8 dereferenceable(16), i64, i64, i64, i64, ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #0 align 2

; 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 #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNK7XEngine17VRML97Regularizer16onIndexedFaceSetERSiRSt4fposI11__mbstate_tERNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #0 align 2

declare void @_ZNSt9basic_iosIcSt11char_traitsIcEE5clearESt12_Ios_Iostate(ptr noundef nonnull align 8 dereferenceable(264), i32 noundef) local_unnamed_addr #4

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSo5writeEPKcl(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef, i64 noundef) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(128)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(256)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt14basic_ofstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(248)) 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 uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { "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 = { nobuiltin allocsize(0) "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #6 = { nobuiltin nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #7 = { nounwind }
attributes #8 = { builtin allocsize(0) }
attributes #9 = { builtin nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"long", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,LICMPass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass