; LLVM IR from spirosmaggioros/AlgoPlus :: examples/machine_learning/encoders (huffman_encoding)

; 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_ostream" = type { ptr, %"class.std::basic_ios" }
%"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::locale" = type { ptr }
%class.huffman = type { double, i64, %"class.std::shared_ptr", %"class.std::unordered_map", %"class.std::priority_queue", %"class.std::unordered_map" }
%"class.std::shared_ptr" = type { %"class.std::__shared_ptr" }
%"class.std::__shared_ptr" = type { ptr, %"class.std::__shared_count" }
%"class.std::__shared_count" = type { ptr }
%"class.std::priority_queue" = type <{ %"class.std::vector", [8 x i8] }>
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<double, std::shared_ptr<huffman::node>>, std::allocator<std::pair<double, std::shared_ptr<huffman::node>>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<double, std::shared_ptr<huffman::node>>, std::allocator<std::pair<double, std::shared_ptr<huffman::node>>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<double, std::shared_ptr<huffman::node>>, std::allocator<std::pair<double, std::shared_ptr<huffman::node>>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<double, std::shared_ptr<huffman::node>>, std::allocator<std::pair<double, std::shared_ptr<huffman::node>>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::unordered_map" = type { %"class.std::_Hashtable" }
%"class.std::_Hashtable" = type { ptr, i64, %"struct.std::__detail::_Hash_node_base", i64, %"struct.std::__detail::_Prime_rehash_policy", ptr }
%"struct.std::__detail::_Hash_node_base" = type { ptr }
%"struct.std::__detail::_Prime_rehash_policy" = type { float, i64 }
%"class.std::vector.5" = type { %"struct.std::_Vector_base.6" }
%"struct.std::_Vector_base.6" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::initializer_list" = type { ptr, i64 }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::allocator.10" = type { i8 }
%"class.std::allocator.7" = type { i8 }
%"class.std::unordered_map.13" = type { %"class.std::_Hashtable.14" }
%"class.std::_Hashtable.14" = type { ptr, i64, %"struct.std::__detail::_Hash_node_base", i64, %"struct.std::__detail::_Prime_rehash_policy", ptr }
%"struct.std::__detail::_Node_iterator" = type { %"struct.std::__detail::_Node_iterator_base" }
%"struct.std::__detail::_Node_iterator_base" = type { ptr }

@.str = external hidden unnamed_addr constant [2 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [2 x i8], align 1
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.3 = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %class.huffman, align 8
  %3 = alloca %"class.std::vector.5", align 8
  %4 = alloca %"class.std::initializer_list", align 8
  %5 = alloca [3 x %"class.std::__cxx11::basic_string"], align 8
  %6 = alloca ptr, align 8
  %7 = alloca %"class.std::allocator.10", align 1
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca %"class.std::allocator.10", align 1
  %11 = alloca %"class.std::allocator.10", align 1
  %12 = alloca i1, align 1
  %13 = alloca %"class.std::allocator.7", align 1
  %14 = alloca %"class.std::unordered_map.13", align 8
  %15 = alloca ptr, align 8
  %16 = alloca %"struct.std::__detail::_Node_iterator", align 8
  %17 = alloca %"struct.std::__detail::_Node_iterator", align 8
  %18 = alloca ptr, align 8
  %19 = alloca ptr, align 8
  %20 = alloca ptr, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 176, ptr %2) #6
  call void @llvm.lifetime.start.p0(i64 96, ptr %5) #6
  store i1 true, ptr %12, align 1
  store ptr %5, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 1, ptr %7) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef @.str, ptr noundef nonnull align 1 dereferenceable(1) %7)
          to label %21 unwind label %54

21:                                               ; preds = %0
  %22 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %5, i64 1
  store ptr %22, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 1, ptr %10) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %22, ptr noundef @.str.1, ptr noundef nonnull align 1 dereferenceable(1) %10)
          to label %23 unwind label %58

23:                                               ; preds = %21
  %24 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %5, i64 2
  store ptr %24, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 1, ptr %11) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %24, ptr noundef @.str.2, ptr noundef nonnull align 1 dereferenceable(1) %11)
          to label %25 unwind label %62

25:                                               ; preds = %23
  store i1 false, ptr %12, align 1
  %26 = getelementptr inbounds %"class.std::initializer_list", ptr %4, i32 0, i32 0
  store ptr %5, ptr %26, align 8, !tbaa !5
  %27 = getelementptr inbounds %"class.std::initializer_list", ptr %4, i32 0, i32 1
  store i64 3, ptr %27, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 1, ptr %13) #6
  call void @_ZNSaINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %13) #6
  %28 = getelementptr inbounds { ptr, i64 }, ptr %4, i32 0, i32 0
  %29 = load ptr, ptr %28, align 8
  %30 = getelementptr inbounds { ptr, i64 }, ptr %4, i32 0, i32 1
  %31 = load i64, ptr %30, align 8
  invoke void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEC2ESt16initializer_listIS5_ERKS6_(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr %29, i64 %31, ptr noundef nonnull align 1 dereferenceable(1) %13)
          to label %32 unwind label %66

32:                                               ; preds = %25
  invoke void @_ZN7huffmanC2ESt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS6_EEl(ptr noundef nonnull align 8 dereferenceable(176) %2, ptr noundef %3, i64 noundef 10)
          to label %33 unwind label %70

33:                                               ; preds = %32
  call void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  call void @_ZNSt15__new_allocatorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %13) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %13) #6
  %34 = getelementptr inbounds [3 x %"class.std::__cxx11::basic_string"], ptr %5, i32 0, i32 0
  %35 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %34, i64 3
  br label %36

36:                                               ; preds = %36, %33
  %37 = phi ptr [ %35, %33 ], [ %38, %36 ]
  %38 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %37, i64 -1
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %38) #6
  %39 = icmp eq ptr %38, %34
  br i1 %39, label %40, label %36

40:                                               ; preds = %36
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %11) #6
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %10) #6
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 96, ptr %5) #6
  invoke void @_ZN7huffman11create_treeEv(ptr noundef nonnull align 8 dereferenceable(176) %2)
          to label %41 unwind label %95

41:                                               ; preds = %40
  call void @llvm.lifetime.start.p0(i64 56, ptr %14) #6
  invoke void @_ZN7huffman6decodeB5cxx11Ev(ptr dead_on_unwind writable sret(%"class.std::unordered_map.13") align 8 %14, ptr noundef nonnull align 8 dereferenceable(176) %2)
          to label %42 unwind label %99

42:                                               ; preds = %41
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #6
  store ptr %14, ptr %15, align 8, !tbaa !12
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #6
  %43 = load ptr, ptr %15, align 8, !tbaa !12
  %44 = call ptr @_ZNSt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_St4hashIS5_ESt8equal_toIS5_ESaISt4pairIKS5_S5_EEE5beginEv(ptr noundef nonnull align 8 dereferenceable(56) %43) #6
  %45 = getelementptr inbounds %"struct.std::__detail::_Node_iterator", ptr %16, i32 0, i32 0
  %46 = getelementptr inbounds %"struct.std::__detail::_Node_iterator_base", ptr %45, i32 0, i32 0
  store ptr %44, ptr %46, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %17) #6
  %47 = load ptr, ptr %15, align 8, !tbaa !12
  %48 = call ptr @_ZNSt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_St4hashIS5_ESt8equal_toIS5_ESaISt4pairIKS5_S5_EEE3endEv(ptr noundef nonnull align 8 dereferenceable(56) %47) #6
  %49 = getelementptr inbounds %"struct.std::__detail::_Node_iterator", ptr %17, i32 0, i32 0
  %50 = getelementptr inbounds %"struct.std::__detail::_Node_iterator_base", ptr %49, i32 0, i32 0
  store ptr %48, ptr %50, align 8
  br label %51

51:                                               ; preds = %119, %42
  %52 = call noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES7_ELb1EEESC_(ptr noundef nonnull align 8 dereferenceable(8) %16, ptr noundef nonnull align 8 dereferenceable(8) %17) #6
  br i1 %52, label %103, label %53

53:                                               ; preds = %51
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #6
  br label %125

54:                                               ; preds = %0
  %55 = landingpad { ptr, i32 }
          cleanup
  %56 = extractvalue { ptr, i32 } %55, 0
  store ptr %56, ptr %8, align 8
  %57 = extractvalue { ptr, i32 } %55, 1
  store i32 %57, ptr %9, align 4
  br label %84

58:                                               ; preds = %21
  %59 = landingpad { ptr, i32 }
          cleanup
  %60 = extractvalue { ptr, i32 } %59, 0
  store ptr %60, ptr %8, align 8
  %61 = extractvalue { ptr, i32 } %59, 1
  store i32 %61, ptr %9, align 4
  br label %83

62:                                               ; preds = %23
  %63 = landingpad { ptr, i32 }
          cleanup
  %64 = extractvalue { ptr, i32 } %63, 0
  store ptr %64, ptr %8, align 8
  %65 = extractvalue { ptr, i32 } %63, 1
  store i32 %65, ptr %9, align 4
  br label %82

66:                                               ; preds = %25
  %67 = landingpad { ptr, i32 }
          cleanup
  %68 = extractvalue { ptr, i32 } %67, 0
  store ptr %68, ptr %8, align 8
  %69 = extractvalue { ptr, i32 } %67, 1
  store i32 %69, ptr %9, align 4
  br label %74

70:                                               ; preds = %32
  %71 = landingpad { ptr, i32 }
          cleanup
  %72 = extractvalue { ptr, i32 } %71, 0
  store ptr %72, ptr %8, align 8
  %73 = extractvalue { ptr, i32 } %71, 1
  store i32 %73, ptr %9, align 4
  call void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  br label %74

74:                                               ; preds = %70, %66
  call void @_ZNSt15__new_allocatorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %13) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %13) #6
  %75 = getelementptr inbounds [3 x %"class.std::__cxx11::basic_string"], ptr %5, i32 0, i32 0
  %76 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %75, i64 3
  br label %77

77:                                               ; preds = %77, %74
  %78 = phi ptr [ %76, %74 ], [ %79, %77 ]
  %79 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %78, i64 -1
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %79) #6
  %80 = icmp eq ptr %79, %75
  br i1 %80, label %81, label %77

81:                                               ; preds = %77
  br label %82

82:                                               ; preds = %81, %62
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %11) #6
  br label %83

83:                                               ; preds = %82, %58
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %10) #6
  br label %84

84:                                               ; preds = %83, %54
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %7) #6
  %85 = load i1, ptr %12, align 1
  br i1 %85, label %86, label %94

86:                                               ; preds = %84
  %87 = load ptr, ptr %6, align 8
  %88 = icmp eq ptr %5, %87
  br i1 %88, label %93, label %89

89:                                               ; preds = %89, %86
  %90 = phi ptr [ %87, %86 ], [ %91, %89 ]
  %91 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %90, i64 -1
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %91) #6
  %92 = icmp eq ptr %91, %5
  br i1 %92, label %93, label %89

93:                                               ; preds = %89, %86
  br label %94

94:                                               ; preds = %93, %84
  call void @llvm.lifetime.end.p0(i64 96, ptr %5) #6
  br label %129

95:                                               ; preds = %40
  %96 = landingpad { ptr, i32 }
          cleanup
  %97 = extractvalue { ptr, i32 } %96, 0
  store ptr %97, ptr %8, align 8
  %98 = extractvalue { ptr, i32 } %96, 1
  store i32 %98, ptr %9, align 4
  br label %128

99:                                               ; preds = %41
  %100 = landingpad { ptr, i32 }
          cleanup
  %101 = extractvalue { ptr, i32 } %100, 0
  store ptr %101, ptr %8, align 8
  %102 = extractvalue { ptr, i32 } %100, 1
  store i32 %102, ptr %9, align 4
  br label %127

103:                                              ; preds = %51
  call void @llvm.lifetime.start.p0(i64 8, ptr %18) #6
  %104 = call noundef nonnull align 8 dereferenceable(64) ptr @_ZNKSt8__detail14_Node_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES7_ELb0ELb1EEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %16) #6
  store ptr %104, ptr %18, align 8, !tbaa !12
  call void @llvm.lifetime.start.p0(i64 8, ptr %19) #6
  %105 = load ptr, ptr %18, align 8, !tbaa !12
  %106 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZSt3getILm0EKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_ERNSt13tuple_elementIXT_ESt4pairIT0_T1_EE4typeERSB_(ptr noundef nonnull align 8 dereferenceable(64) %105) #6
  store ptr %106, ptr %19, align 8, !tbaa !12
  call void @llvm.lifetime.start.p0(i64 8, ptr %20) #6
  %107 = load ptr, ptr %18, align 8, !tbaa !12
  %108 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZSt3getILm1EKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_ERNSt13tuple_elementIXT_ESt4pairIT0_T1_EE4typeERSB_(ptr noundef nonnull align 8 dereferenceable(64) %107) #6
  store ptr %108, ptr %20, align 8, !tbaa !12
  %109 = load ptr, ptr %19, align 8, !tbaa !12
  %110 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(32) %109)
          to label %111 unwind label %121

111:                                              ; preds = %103
  %112 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %110, ptr noundef @.str.3)
          to label %113 unwind label %121

113:                                              ; preds = %111
  %114 = load ptr, ptr %20, align 8, !tbaa !12
  %115 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) %112, ptr noundef nonnull align 8 dereferenceable(32) %114)
          to label %116 unwind label %121

116:                                              ; preds = %113
  %117 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %115, i8 noundef signext 10)
          to label %118 unwind label %121

118:                                              ; preds = %116
  call void @llvm.lifetime.end.p0(i64 8, ptr %20) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %19) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %18) #6
  br label %119

119:                                              ; preds = %118
  %120 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt8__detail14_Node_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES7_ELb0ELb1EEppEv(ptr noundef nonnull align 8 dereferenceable(8) %16) #6
  br label %51

121:                                              ; preds = %116, %113, %111, %103
  %122 = landingpad { ptr, i32 }
          cleanup
  %123 = extractvalue { ptr, i32 } %122, 0
  store ptr %123, ptr %8, align 8
  %124 = extractvalue { ptr, i32 } %122, 1
  store i32 %124, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %20) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %19) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %18) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #6
  call void @_ZNSt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_St4hashIS5_ESt8equal_toIS5_ESaISt4pairIKS5_S5_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %14) #6
  br label %127

125:                                              ; preds = %53
  call void @_ZNSt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_St4hashIS5_ESt8equal_toIS5_ESaISt4pairIKS5_S5_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %14) #6
  call void @llvm.lifetime.end.p0(i64 56, ptr %14) #6
  call void @_ZN7huffmanD2Ev(ptr noundef nonnull align 8 dereferenceable(176) %2) #6
  call void @llvm.lifetime.end.p0(i64 176, ptr %2) #6
  %126 = load i32, ptr %1, align 4
  ret i32 %126

127:                                              ; preds = %121, %99
  call void @llvm.lifetime.end.p0(i64 56, ptr %14) #6
  br label %128

128:                                              ; preds = %127, %95
  call void @_ZN7huffmanD2Ev(ptr noundef nonnull align 8 dereferenceable(176) %2) #6
  br label %129

129:                                              ; preds = %128, %94
  call void @llvm.lifetime.end.p0(i64 176, ptr %2) #6
  br label %130

130:                                              ; preds = %129
  %131 = load ptr, ptr %8, align 8
  %132 = load i32, ptr %9, align 4
  %133 = insertvalue { ptr, i32 } poison, ptr %131, 0
  %134 = insertvalue { ptr, i32 } %133, i32 %132, 1
  resume { ptr, i32 } %134
}

; 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 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 #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEC2ESt16initializer_listIS5_ERKS6_(ptr noundef nonnull align 8 dereferenceable(24), ptr, i64, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7huffmanC2ESt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS6_EEl(ptr noundef nonnull align 8 dereferenceable(176), ptr noundef, i64 noundef) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #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: 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 @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN7huffman11create_treeEv(ptr noundef nonnull align 8 dereferenceable(176)) #4 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN7huffman6decodeB5cxx11Ev(ptr dead_on_unwind noalias writable sret(%"class.std::unordered_map.13") align 8, ptr noundef nonnull align 8 dereferenceable(176)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_St4hashIS5_ESt8equal_toIS5_ESaISt4pairIKS5_S5_EEE5beginEv(ptr noundef nonnull align 8 dereferenceable(56)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_St4hashIS5_ESt8equal_toIS5_ESaISt4pairIKS5_S5_EEE3endEv(ptr noundef nonnull align 8 dereferenceable(56)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES7_ELb1EEESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(64) ptr @_ZNKSt8__detail14_Node_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES7_ELb0ELb1EEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZSt3getILm0EKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_ERNSt13tuple_elementIXT_ESt4pairIT0_T1_EE4typeERSB_(ptr noundef nonnull align 8 dereferenceable(64)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZSt3getILm1EKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_ERNSt13tuple_elementIXT_ESt4pairIT0_T1_EE4typeERSB_(ptr noundef nonnull align 8 dereferenceable(64)) #2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) #4

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) #4

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt8__detail14_Node_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES7_ELb0ELb1EEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_St4hashIS5_ESt8equal_toIS5_ESaISt4pairIKS5_S5_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #5 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN7huffmanD2Ev(ptr noundef nonnull align 8 dereferenceable(176)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

attributes #0 = { mustprogress norecurse 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 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { 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 #6 = { 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, !7, i64 0}
!6 = !{!"_ZTSSt16initializer_listINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEE", !7, i64 0, !10, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!6, !10, i64 8}
!12 = !{!7, !7, i64 0}


; 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_ostream" = type { ptr, %"class.std::basic_ios" }
%"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::locale" = type { ptr }
%class.huffman = type { double, i64, %"class.std::shared_ptr", %"class.std::unordered_map", %"class.std::priority_queue", %"class.std::unordered_map" }
%"class.std::shared_ptr" = type { %"class.std::__shared_ptr" }
%"class.std::__shared_ptr" = type { ptr, %"class.std::__shared_count" }
%"class.std::__shared_count" = type { ptr }
%"class.std::priority_queue" = type <{ %"class.std::vector", [8 x i8] }>
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<double, std::shared_ptr<huffman::node>>, std::allocator<std::pair<double, std::shared_ptr<huffman::node>>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<double, std::shared_ptr<huffman::node>>, std::allocator<std::pair<double, std::shared_ptr<huffman::node>>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<double, std::shared_ptr<huffman::node>>, std::allocator<std::pair<double, std::shared_ptr<huffman::node>>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<double, std::shared_ptr<huffman::node>>, std::allocator<std::pair<double, std::shared_ptr<huffman::node>>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::unordered_map" = type { %"class.std::_Hashtable" }
%"class.std::_Hashtable" = type { ptr, i64, %"struct.std::__detail::_Hash_node_base", i64, %"struct.std::__detail::_Prime_rehash_policy", ptr }
%"struct.std::__detail::_Hash_node_base" = type { ptr }
%"struct.std::__detail::_Prime_rehash_policy" = type { float, i64 }
%"class.std::vector.5" = type { %"struct.std::_Vector_base.6" }
%"struct.std::_Vector_base.6" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::allocator.10" = type { i8 }
%"class.std::allocator.7" = type { i8 }
%"class.std::unordered_map.13" = type { %"class.std::_Hashtable.14" }
%"class.std::_Hashtable.14" = type { ptr, i64, %"struct.std::__detail::_Hash_node_base", i64, %"struct.std::__detail::_Prime_rehash_policy", ptr }
%"struct.std::__detail::_Node_iterator" = type { %"struct.std::__detail::_Node_iterator_base" }
%"struct.std::__detail::_Node_iterator_base" = type { ptr }

@.str = external hidden unnamed_addr constant [2 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [2 x i8], align 1
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.3 = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca %class.huffman, align 8
  %2 = alloca %"class.std::vector.5", align 8
  %3 = alloca [3 x %"class.std::__cxx11::basic_string"], align 8
  %4 = alloca %"class.std::allocator.10", align 1
  %5 = alloca %"class.std::allocator.10", align 1
  %6 = alloca %"class.std::allocator.10", align 1
  %7 = alloca %"class.std::allocator.7", align 1
  %8 = alloca %"class.std::unordered_map.13", align 8
  %9 = alloca %"struct.std::__detail::_Node_iterator", align 8
  %10 = alloca %"struct.std::__detail::_Node_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 176, ptr nonnull %1) #6
  call void @llvm.lifetime.start.p0(i64 96, ptr nonnull %3) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %4) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %3, ptr noundef nonnull @.str, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %11 unwind label %.thread

11:                                               ; preds = %0
  %12 = getelementptr inbounds i8, ptr %3, i64 32
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %5) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %12, ptr noundef nonnull @.str.1, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %13 unwind label %26

13:                                               ; preds = %11
  %14 = getelementptr inbounds i8, ptr %3, i64 64
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %6) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %14, ptr noundef nonnull @.str.2, ptr noundef nonnull align 1 dereferenceable(1) %6)
          to label %15 unwind label %28

15:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %7) #6
  call void @_ZNSaINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #6
  invoke void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEC2ESt16initializer_listIS5_ERKS6_(ptr noundef nonnull align 8 dereferenceable(24) %2, ptr nonnull %3, i64 3, ptr noundef nonnull align 1 dereferenceable(1) %7)
          to label %16 unwind label %30

16:                                               ; preds = %15
  invoke void @_ZN7huffmanC2ESt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS6_EEl(ptr noundef nonnull align 8 dereferenceable(176) %1, ptr noundef nonnull %2, i64 noundef 10)
          to label %17 unwind label %32

17:                                               ; preds = %16
  call void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  call void @_ZNSt15__new_allocatorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %7) #6
  %18 = getelementptr inbounds i8, ptr %3, i64 64
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %18) #6
  %19 = getelementptr inbounds i8, ptr %3, i64 32
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %19) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #6
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #6
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 96, ptr nonnull %3) #6
  invoke void @_ZN7huffman11create_treeEv(ptr noundef nonnull align 8 dereferenceable(176) %1)
          to label %20 unwind label %41

20:                                               ; preds = %17
  call void @llvm.lifetime.start.p0(i64 56, ptr nonnull %8) #6
  invoke void @_ZN7huffman6decodeB5cxx11Ev(ptr dead_on_unwind nonnull writable sret(%"class.std::unordered_map.13") align 8 %8, ptr noundef nonnull align 8 dereferenceable(176) %1)
          to label %21 unwind label %43

21:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %9) #6
  %22 = call ptr @_ZNSt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_St4hashIS5_ESt8equal_toIS5_ESaISt4pairIKS5_S5_EEE5beginEv(ptr noundef nonnull align 8 dereferenceable(56) %8) #6
  store ptr %22, ptr %9, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %10) #6
  %23 = call ptr @_ZNSt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_St4hashIS5_ESt8equal_toIS5_ESaISt4pairIKS5_S5_EEE3endEv(ptr noundef nonnull align 8 dereferenceable(56) %8) #6
  store ptr %23, ptr %10, align 8
  %24 = call noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES7_ELb1EEESC_(ptr noundef nonnull align 8 dereferenceable(8) %9, ptr noundef nonnull align 8 dereferenceable(8) %10) #6
  br i1 %24, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %55, %21
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #6
  call void @_ZNSt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_St4hashIS5_ESt8equal_toIS5_ESaISt4pairIKS5_S5_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %8) #6
  call void @llvm.lifetime.end.p0(i64 56, ptr nonnull %8) #6
  call void @_ZN7huffmanD2Ev(ptr noundef nonnull align 8 dereferenceable(176) %1) #6
  call void @llvm.lifetime.end.p0(i64 176, ptr nonnull %1) #6
  ret i32 0

.thread:                                          ; preds = %0
  %25 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #6
  br label %.loopexit

26:                                               ; preds = %11
  %27 = landingpad { ptr, i32 }
          cleanup
  br label %37

28:                                               ; preds = %13
  %29 = landingpad { ptr, i32 }
          cleanup
  br label %.loopexit37

30:                                               ; preds = %15
  %31 = landingpad { ptr, i32 }
          cleanup
  br label %.loopexit37.loopexit

32:                                               ; preds = %16
  %33 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  br label %.loopexit37.loopexit

.loopexit37.loopexit:                             ; preds = %32, %30
  %.pn = phi { ptr, i32 } [ %33, %32 ], [ %31, %30 ]
  call void @_ZNSt15__new_allocatorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %7) #6
  %34 = getelementptr inbounds i8, ptr %3, i64 64
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %34) #6
  %35 = getelementptr inbounds i8, ptr %3, i64 32
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %35) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  br label %.loopexit37

.loopexit37:                                      ; preds = %.loopexit37.loopexit, %28
  %36 = phi i1 [ false, %28 ], [ true, %.loopexit37.loopexit ]
  %.pn.pn = phi { ptr, i32 } [ %29, %28 ], [ %.pn, %.loopexit37.loopexit ]
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #6
  br label %37

37:                                               ; preds = %26, %.loopexit37
  %.121 = phi i1 [ %36, %.loopexit37 ], [ false, %26 ]
  %.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn, %.loopexit37 ], [ %27, %26 ]
  %.0 = phi ptr [ %14, %.loopexit37 ], [ %12, %26 ]
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #6
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #6
  br i1 %.121, label %.loopexit, label %.preheader

.preheader:                                       ; preds = %37, %.preheader
  %38 = phi ptr [ %39, %.preheader ], [ %.0, %37 ]
  %39 = getelementptr inbounds i8, ptr %38, i64 -32
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %39) #6
  %40 = icmp eq ptr %39, %3
  br i1 %40, label %.loopexit, label %.preheader

.loopexit:                                        ; preds = %.preheader, %.thread, %37
  %.pn.pn.pn.pn36 = phi { ptr, i32 } [ %25, %.thread ], [ %.pn.pn.pn, %37 ], [ %.pn.pn.pn, %.preheader ]
  call void @llvm.lifetime.end.p0(i64 96, ptr nonnull %3) #6
  br label %62

41:                                               ; preds = %17
  %42 = landingpad { ptr, i32 }
          cleanup
  br label %61

43:                                               ; preds = %20
  %44 = landingpad { ptr, i32 }
          cleanup
  br label %60

.lr.ph:                                           ; preds = %21, %55
  %45 = call noundef nonnull align 8 dereferenceable(64) ptr @_ZNKSt8__detail14_Node_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES7_ELb0ELb1EEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %9) #6
  %46 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZSt3getILm0EKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_ERNSt13tuple_elementIXT_ESt4pairIT0_T1_EE4typeERSB_(ptr noundef nonnull align 8 dereferenceable(64) %45) #6
  %47 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZSt3getILm1EKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_ERNSt13tuple_elementIXT_ESt4pairIT0_T1_EE4typeERSB_(ptr noundef nonnull align 8 dereferenceable(64) %45) #6
  %48 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(32) %46)
          to label %49 unwind label %58

49:                                               ; preds = %.lr.ph
  %50 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %48, ptr noundef nonnull @.str.3)
          to label %51 unwind label %58

51:                                               ; preds = %49
  %52 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) %50, ptr noundef nonnull align 8 dereferenceable(32) %47)
          to label %53 unwind label %58

53:                                               ; preds = %51
  %54 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %52, i8 noundef signext 10)
          to label %55 unwind label %58

55:                                               ; preds = %53
  %56 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt8__detail14_Node_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES7_ELb0ELb1EEppEv(ptr noundef nonnull align 8 dereferenceable(8) %9) #6
  %57 = call noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES7_ELb1EEESC_(ptr noundef nonnull align 8 dereferenceable(8) %9, ptr noundef nonnull align 8 dereferenceable(8) %10) #6
  br i1 %57, label %.lr.ph, label %._crit_edge

58:                                               ; preds = %53, %51, %49, %.lr.ph
  %59 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #6
  call void @_ZNSt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_St4hashIS5_ESt8equal_toIS5_ESaISt4pairIKS5_S5_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %8) #6
  br label %60

60:                                               ; preds = %58, %43
  %.pn28 = phi { ptr, i32 } [ %59, %58 ], [ %44, %43 ]
  call void @llvm.lifetime.end.p0(i64 56, ptr nonnull %8) #6
  br label %61

61:                                               ; preds = %60, %41
  %.pn28.pn = phi { ptr, i32 } [ %.pn28, %60 ], [ %42, %41 ]
  call void @_ZN7huffmanD2Ev(ptr noundef nonnull align 8 dereferenceable(176) %1) #6
  br label %62

62:                                               ; preds = %61, %.loopexit
  %.pn28.pn.pn = phi { ptr, i32 } [ %.pn28.pn, %61 ], [ %.pn.pn.pn.pn36, %.loopexit ]
  call void @llvm.lifetime.end.p0(i64 176, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn28.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 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 #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEC2ESt16initializer_listIS5_ERKS6_(ptr noundef nonnull align 8 dereferenceable(24), ptr, i64, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7huffmanC2ESt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS6_EEl(ptr noundef nonnull align 8 dereferenceable(176), ptr noundef, i64 noundef) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #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: 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 @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN7huffman11create_treeEv(ptr noundef nonnull align 8 dereferenceable(176)) local_unnamed_addr #4 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN7huffman6decodeB5cxx11Ev(ptr dead_on_unwind noalias writable sret(%"class.std::unordered_map.13") align 8, ptr noundef nonnull align 8 dereferenceable(176)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_St4hashIS5_ESt8equal_toIS5_ESaISt4pairIKS5_S5_EEE5beginEv(ptr noundef nonnull align 8 dereferenceable(56)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_St4hashIS5_ESt8equal_toIS5_ESaISt4pairIKS5_S5_EEE3endEv(ptr noundef nonnull align 8 dereferenceable(56)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES7_ELb1EEESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(64) ptr @_ZNKSt8__detail14_Node_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES7_ELb0ELb1EEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZSt3getILm0EKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_ERNSt13tuple_elementIXT_ESt4pairIT0_T1_EE4typeERSB_(ptr noundef nonnull align 8 dereferenceable(64)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZSt3getILm1EKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_ERNSt13tuple_elementIXT_ESt4pairIT0_T1_EE4typeERSB_(ptr noundef nonnull align 8 dereferenceable(64)) local_unnamed_addr #2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) local_unnamed_addr #4

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #4

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt8__detail14_Node_iteratorISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES7_ELb0ELb1EEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_St4hashIS5_ESt8equal_toIS5_ESaISt4pairIKS5_S5_EEED2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #5 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN7huffmanD2Ev(ptr noundef nonnull align 8 dereferenceable(176)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

attributes #0 = { mustprogress norecurse 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 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { 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 #6 = { nounwind }

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}


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