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//===-- llvm/Support/Dwarf.cpp - Dwarf Framework ----------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains support for generic dwarf information.
//
//===----------------------------------------------------------------------===//

#include "llvm/Support/Dwarf.h"
#include "llvm/Support/ErrorHandling.h"

using namespace llvm;
using namespace dwarf;

/// TagString - Return the string for the specified tag.
///
const char *llvm::dwarf::TagString(unsigned Tag) {
  switch (Tag) {
  case DW_TAG_array_type:                return "DW_TAG_array_type";
  case DW_TAG_class_type:                return "DW_TAG_class_type";
  case DW_TAG_entry_point:               return "DW_TAG_entry_point";
  case DW_TAG_enumeration_type:          return "DW_TAG_enumeration_type";
  case DW_TAG_formal_parameter:          return "DW_TAG_formal_parameter";
  case DW_TAG_imported_declaration:      return "DW_TAG_imported_declaration";
  case DW_TAG_label:                     return "DW_TAG_label";
  case DW_TAG_lexical_block:             return "DW_TAG_lexical_block";
  case DW_TAG_member:                    return "DW_TAG_member";
  case DW_TAG_pointer_type:              return "DW_TAG_pointer_type";
  case DW_TAG_reference_type:            return "DW_TAG_reference_type";
  case DW_TAG_compile_unit:              return "DW_TAG_compile_unit";
  case DW_TAG_string_type:               return "DW_TAG_string_type";
  case DW_TAG_structure_type:            return "DW_TAG_structure_type";
  case DW_TAG_subroutine_type:           return "DW_TAG_subroutine_type";
  case DW_TAG_typedef:                   return "DW_TAG_typedef";
  case DW_TAG_union_type:                return "DW_TAG_union_type";
  case DW_TAG_unspecified_parameters:    return "DW_TAG_unspecified_parameters";
  case DW_TAG_variant:                   return "DW_TAG_variant";
  case DW_TAG_common_block:              return "DW_TAG_common_block";
  case DW_TAG_common_inclusion:          return "DW_TAG_common_inclusion";
  case DW_TAG_inheritance:               return "DW_TAG_inheritance";
  case DW_TAG_inlined_subroutine:        return "DW_TAG_inlined_subroutine";
  case DW_TAG_module:                    return "DW_TAG_module";
  case DW_TAG_ptr_to_member_type:        return "DW_TAG_ptr_to_member_type";
  case DW_TAG_set_type:                  return "DW_TAG_set_type";
  case DW_TAG_subrange_type:             return "DW_TAG_subrange_type";
  case DW_TAG_with_stmt:                 return "DW_TAG_with_stmt";
  case DW_TAG_access_declaration:        return "DW_TAG_access_declaration";
  case DW_TAG_base_type:                 return "DW_TAG_base_type";
  case DW_TAG_catch_block:               return "DW_TAG_catch_block";
  case DW_TAG_const_type:                return "DW_TAG_const_type";
  case DW_TAG_constant:                  return "DW_TAG_constant";
  case DW_TAG_enumerator:                return "DW_TAG_enumerator";
  case DW_TAG_file_type:                 return "DW_TAG_file_type";
  case DW_TAG_friend:                    return "DW_TAG_friend";
  case DW_TAG_namelist:                  return "DW_TAG_namelist";
  case DW_TAG_namelist_item:             return "DW_TAG_namelist_item";
  case DW_TAG_packed_type:               return "DW_TAG_packed_type";
  case DW_TAG_subprogram:                return "DW_TAG_subprogram";
  case DW_TAG_template_type_parameter:   return "DW_TAG_template_type_parameter";
  case DW_TAG_template_value_parameter:  return "DW_TAG_template_value_parameter";
  case DW_TAG_thrown_type:               return "DW_TAG_thrown_type";
  case DW_TAG_try_block:                 return "DW_TAG_try_block";
  case DW_TAG_variant_part:              return "DW_TAG_variant_part";
  case DW_TAG_variable:                  return "DW_TAG_variable";
  case DW_TAG_volatile_type:             return "DW_TAG_volatile_type";
  case DW_TAG_dwarf_procedure:           return "DW_TAG_dwarf_procedure";
  case DW_TAG_restrict_type:             return "DW_TAG_restrict_type";
  case DW_TAG_interface_type:            return "DW_TAG_interface_type";
  case DW_TAG_namespace:                 return "DW_TAG_namespace";
  case DW_TAG_imported_module:           return "DW_TAG_imported_module";
  case DW_TAG_unspecified_type:          return "DW_TAG_unspecified_type";
  case DW_TAG_partial_unit:              return "DW_TAG_partial_unit";
  case DW_TAG_imported_unit:             return "DW_TAG_imported_unit";
  case DW_TAG_condition:                 return "DW_TAG_condition";
  case DW_TAG_shared_type:               return "DW_TAG_shared_type";
  case DW_TAG_lo_user:                   return "DW_TAG_lo_user";
  case DW_TAG_hi_user:                   return "DW_TAG_hi_user";
  case DW_TAG_auto_variable:             return "DW_TAG_auto_variable";
  case DW_TAG_arg_variable:              return "DW_TAG_arg_variable";
  case DW_TAG_rvalue_reference_type:     return "DW_TAG_rvalue_reference_type";
  case DW_TAG_template_alias:            return "DW_TAG_template_alias";
  case DW_TAG_coarray_type:              return "DW_TAG_coarray_type";
  case DW_TAG_generic_subrange:          return "DW_TAG_generic_subrange";
  case DW_TAG_dynamic_type:              return "DW_TAG_dynamic_type";
  case DW_TAG_MIPS_loop:                 return "DW_TAG_MIPS_loop";
  case DW_TAG_type_unit:                 return "DW_TAG_type_unit";
  case DW_TAG_format_label:              return "DW_TAG_format_label";
  case DW_TAG_function_template:         return "DW_TAG_function_template";
  case DW_TAG_class_template:            return "DW_TAG_class_template";
  case DW_TAG_GNU_template_template_param:
    return "DW_TAG_GNU_template_template_param";
  case DW_TAG_GNU_template_parameter_pack:
    return "DW_TAG_GNU_template_parameter_pack";
  case DW_TAG_GNU_formal_parameter_pack:
    return "DW_TAG_GNU_formal_parameter_pack";
  case DW_TAG_APPLE_property:            return "DW_TAG_APPLE_property";
  }
  return nullptr;
}

/// ChildrenString - Return the string for the specified children flag.
///
const char *llvm::dwarf::ChildrenString(unsigned Children) {
  switch (Children) {
  case DW_CHILDREN_no:                   return "DW_CHILDREN_no";
  case DW_CHILDREN_yes:                  return "DW_CHILDREN_yes";
  }
  return nullptr;
}

/// AttributeString - Return the string for the specified attribute.
///
const char *llvm::dwarf::AttributeString(unsigned Attribute) {
  switch (Attribute) {
  case DW_AT_sibling:                    return "DW_AT_sibling";
  case DW_AT_location:                   return "DW_AT_location";
  case DW_AT_name:                       return "DW_AT_name";
  case DW_AT_ordering:                   return "DW_AT_ordering";
  case DW_AT_byte_size:                  return "DW_AT_byte_size";
  case DW_AT_bit_offset:                 return "DW_AT_bit_offset";
  case DW_AT_bit_size:                   return "DW_AT_bit_size";
  case DW_AT_stmt_list:                  return "DW_AT_stmt_list";
  case DW_AT_low_pc:                     return "DW_AT_low_pc";
  case DW_AT_high_pc:                    return "DW_AT_high_pc";
  case DW_AT_language:                   return "DW_AT_language";
  case DW_AT_discr:                      return "DW_AT_discr";
  case DW_AT_discr_value:                return "DW_AT_discr_value";
  case DW_AT_visibility:                 return "DW_AT_visibility";
  case DW_AT_import:                     return "DW_AT_import";
  case DW_AT_string_length:              return "DW_AT_string_length";
  case DW_AT_common_reference:           return "DW_AT_common_reference";
  case DW_AT_comp_dir:                   return "DW_AT_comp_dir";
  case DW_AT_const_value:                return "DW_AT_const_value";
  case DW_AT_containing_type:            return "DW_AT_containing_type";
  case DW_AT_default_value:              return "DW_AT_default_value";
  case DW_AT_inline:                     return "DW_AT_inline";
  case DW_AT_is_optional:                return "DW_AT_is_optional";
  case DW_AT_lower_bound:                return "DW_AT_lower_bound";
  case DW_AT_producer:                   return "DW_AT_producer";
  case DW_AT_prototyped:                 return "DW_AT_prototyped";
  case DW_AT_return_addr:                return "DW_AT_return_addr";
  case DW_AT_start_scope:                return "DW_AT_start_scope";
  case DW_AT_bit_stride:                 return "DW_AT_bit_stride";
  case DW_AT_upper_bound:                return "DW_AT_upper_bound";
  case DW_AT_abstract_origin:            return "DW_AT_abstract_origin";
  case DW_AT_accessibility:              return "DW_AT_accessibility";
  case DW_AT_address_class:              return "DW_AT_address_class";
  case DW_AT_artificial:                 return "DW_AT_artificial";
  case DW_AT_base_types:                 return "DW_AT_base_types";
  case DW_AT_calling_convention:         return "DW_AT_calling_convention";
  case DW_AT_count:                      return "DW_AT_count";
  case DW_AT_data_member_location:       return "DW_AT_data_member_location";
  case DW_AT_decl_column:                return "DW_AT_decl_column";
  case DW_AT_decl_file:                  return "DW_AT_decl_file";
  case DW_AT_decl_line:                  return "DW_AT_decl_line";
  case DW_AT_declaration:                return "DW_AT_declaration";
  case DW_AT_discr_list:                 return "DW_AT_discr_list";
  case DW_AT_encoding:                   return "DW_AT_encoding";
  case DW_AT_external:                   return "DW_AT_external";
  case DW_AT_frame_base:                 return "DW_AT_frame_base";
  case DW_AT_friend:                     return "DW_AT_friend";
  case DW_AT_identifier_case:            return "DW_AT_identifier_case";
  case DW_AT_macro_info:                 return "DW_AT_macro_info";
  case DW_AT_namelist_item:              return "DW_AT_namelist_item";
  case DW_AT_priority:                   return "DW_AT_priority";
  case DW_AT_segment:                    return "DW_AT_segment";
  case DW_AT_specification:              return "DW_AT_specification";
  case DW_AT_static_link:                return "DW_AT_static_link";
  case DW_AT_type:                       return "DW_AT_type";
  case DW_AT_use_location:               return "DW_AT_use_location";
  case DW_AT_variable_parameter:         return "DW_AT_variable_parameter";
  case DW_AT_virtuality:                 return "DW_AT_virtuality";
  case DW_AT_vtable_elem_location:       return "DW_AT_vtable_elem_location";
  case DW_AT_allocated:                  return "DW_AT_allocated";
  case DW_AT_associated:                 return "DW_AT_associated";
  case DW_AT_data_location:              return "DW_AT_data_location";
  case DW_AT_byte_stride:                return "DW_AT_byte_stride";
  case DW_AT_entry_pc:                   return "DW_AT_entry_pc";
  case DW_AT_use_UTF8:                   return "DW_AT_use_UTF8";
  case DW_AT_extension:                  return "DW_AT_extension";
  case DW_AT_ranges:                     return "DW_AT_ranges";
  case DW_AT_trampoline:                 return "DW_AT_trampoline";
  case DW_AT_call_column:                return "DW_AT_call_column";
  case DW_AT_call_file:                  return "DW_AT_call_file";
  case DW_AT_call_line:                  return "DW_AT_call_line";
  case DW_AT_description:                return "DW_AT_description";
  case DW_AT_binary_scale:               return "DW_AT_binary_scale";
  case DW_AT_decimal_scale:              return "DW_AT_decimal_scale";
  case DW_AT_small:                      return "DW_AT_small";
  case DW_AT_decimal_sign:               return "DW_AT_decimal_sign";
  case DW_AT_digit_count:                return "DW_AT_digit_count";
  case DW_AT_picture_string:             return "DW_AT_picture_string";
  case DW_AT_mutable:                    return "DW_AT_mutable";
  case DW_AT_threads_scaled:             return "DW_AT_threads_scaled";
  case DW_AT_explicit:                   return "DW_AT_explicit";
  case DW_AT_object_pointer:             return "DW_AT_object_pointer";
  case DW_AT_endianity:                  return "DW_AT_endianity";
  case DW_AT_elemental:                  return "DW_AT_elemental";
  case DW_AT_pure:                       return "DW_AT_pure";
  case DW_AT_recursive:                  return "DW_AT_recursive";
  case DW_AT_signature:                  return "DW_AT_signature";
  case DW_AT_main_subprogram:            return "DW_AT_main_subprogram";
  case DW_AT_data_bit_offset:            return "DW_AT_data_bit_offset";
  case DW_AT_const_expr:                 return "DW_AT_const_expr";
  case DW_AT_enum_class:                 return "DW_AT_enum_class";
  case DW_AT_linkage_name:               return "DW_AT_linkage_name";
  case DW_AT_string_length_bit_size:     return "DW_AT_string_length_bit_size";
  case DW_AT_string_length_byte_size:    return "DW_AT_string_length_byte_size";
  case DW_AT_rank:                       return "DW_AT_rank";
  case DW_AT_str_offsets_base:           return "DW_AT_str_offsets_base";
  case DW_AT_addr_base:                  return "DW_AT_addr_base";
  case DW_AT_ranges_base:                return "DW_AT_ranges_base";
  case DW_AT_dwo_id:                     return "DW_AT_dwo_id";
  case DW_AT_dwo_name:                   return "DW_AT_dwo_name";
  case DW_AT_reference:                  return "DW_AT_reference";
  case DW_AT_rvalue_reference:           return "DW_AT_rvalue_reference";
  case DW_AT_MIPS_loop_begin:            return "DW_AT_MIPS_loop_begin";
  case DW_AT_MIPS_tail_loop_begin:       return "DW_AT_MIPS_tail_loop_begin";
  case DW_AT_MIPS_epilog_begin:          return "DW_AT_MIPS_epilog_begin";
  case DW_AT_MIPS_loop_unroll_factor:    return "DW_AT_MIPS_loop_unroll_factor";
  case DW_AT_MIPS_software_pipeline_depth:
    return "DW_AT_MIPS_software_pipeline_depth";
  case DW_AT_MIPS_linkage_name:          return "DW_AT_MIPS_linkage_name";
  case DW_AT_MIPS_stride:                return "DW_AT_MIPS_stride";
  case DW_AT_MIPS_abstract_name:         return "DW_AT_MIPS_abstract_name";
  case DW_AT_MIPS_clone_origin:          return "DW_AT_MIPS_clone_origin";
  case DW_AT_MIPS_has_inlines:           return "DW_AT_MIPS_has_inlines";
  case DW_AT_MIPS_stride_byte:           return "DW_AT_MIPS_stride_byte";
  case DW_AT_MIPS_stride_elem:           return "DW_AT_MIPS_stride_elem";
  case DW_AT_MIPS_ptr_dopetype:          return "DW_AT_MIPS_ptr_dopetype";
  case DW_AT_MIPS_allocatable_dopetype:
    return "DW_AT_MIPS_allocatable_dopetype";
  case DW_AT_MIPS_assumed_shape_dopetype:
    return "DW_AT_MIPS_assumed_shape_dopetype";
  case DW_AT_sf_names:                   return "DW_AT_sf_names";
  case DW_AT_src_info:                   return "DW_AT_src_info";
  case DW_AT_mac_info:                   return "DW_AT_mac_info";
  case DW_AT_src_coords:                 return "DW_AT_src_coords";
  case DW_AT_body_begin:                 return "DW_AT_body_begin";
  case DW_AT_body_end:                   return "DW_AT_body_end";
  case DW_AT_GNU_vector:                 return "DW_AT_GNU_vector";
  case DW_AT_GNU_template_name:          return "DW_AT_GNU_template_name";
  case DW_AT_GNU_odr_signature:          return "DW_AT_GNU_odr_signature";
  case DW_AT_MIPS_assumed_size:          return "DW_AT_MIPS_assumed_size";
  case DW_AT_lo_user:                    return "DW_AT_lo_user";
  case DW_AT_hi_user:                    return "DW_AT_hi_user";
  case DW_AT_APPLE_optimized:            return "DW_AT_APPLE_optimized";
  case DW_AT_APPLE_flags:                return "DW_AT_APPLE_flags";
  case DW_AT_APPLE_isa:                  return "DW_AT_APPLE_isa";
  case DW_AT_APPLE_block:                return "DW_AT_APPLE_block";
  case DW_AT_APPLE_major_runtime_vers:   return "DW_AT_APPLE_major_runtime_vers";
  case DW_AT_APPLE_runtime_class:        return "DW_AT_APPLE_runtime_class";
  case DW_AT_APPLE_omit_frame_ptr:       return "DW_AT_APPLE_omit_frame_ptr";
  case DW_AT_APPLE_property_name:        return "DW_AT_APPLE_property_name";
  case DW_AT_APPLE_property_getter:      return "DW_AT_APPLE_property_getter";
  case DW_AT_APPLE_property_setter:      return "DW_AT_APPLE_property_setter";
  case DW_AT_APPLE_property_attribute:   return "DW_AT_APPLE_property_attribute";
  case DW_AT_APPLE_property:             return "DW_AT_APPLE_property";
  case DW_AT_APPLE_objc_complete_type:   return "DW_AT_APPLE_objc_complete_type";

    // DWARF5 Fission Extension Attribute
  case DW_AT_GNU_dwo_name:               return "DW_AT_GNU_dwo_name";
  case DW_AT_GNU_dwo_id:                 return "DW_AT_GNU_dwo_id";
  case DW_AT_GNU_ranges_base:            return "DW_AT_GNU_ranges_base";
  case DW_AT_GNU_addr_base:              return "DW_AT_GNU_addr_base";
  case DW_AT_GNU_pubnames:               return "DW_AT_GNU_pubnames";
  case DW_AT_GNU_pubtypes:               return "DW_AT_GNU_pubtypes";
  }
  return nullptr;
}

/// FormEncodingString - Return the string for the specified form encoding.
///
const char *llvm::dwarf::FormEncodingString(unsigned Encoding) {
  switch (Encoding) {
  case DW_FORM_addr:                     return "DW_FORM_addr";
  case DW_FORM_block2:                   return "DW_FORM_block2";
  case DW_FORM_block4:                   return "DW_FORM_block4";
  case DW_FORM_data2:                    return "DW_FORM_data2";
  case DW_FORM_data4:                    return "DW_FORM_data4";
  case DW_FORM_data8:                    return "DW_FORM_data8";
  case DW_FORM_string:                   return "DW_FORM_string";
  case DW_FORM_block:                    return "DW_FORM_block";
  case DW_FORM_block1:                   return "DW_FORM_block1";
  case DW_FORM_data1:                    return "DW_FORM_data1";
  case DW_FORM_flag:                     return "DW_FORM_flag";
  case DW_FORM_sdata:                    return "DW_FORM_sdata";
  case DW_FORM_strp:                     return "DW_FORM_strp";
  case DW_FORM_udata:                    return "DW_FORM_udata";
  case DW_FORM_ref_addr:                 return "DW_FORM_ref_addr";
  case DW_FORM_ref1:                     return "DW_FORM_ref1";
  case DW_FORM_ref2:                     return "DW_FORM_ref2";
  case DW_FORM_ref4:                     return "DW_FORM_ref4";
  case DW_FORM_ref8:                     return "DW_FORM_ref8";
  case DW_FORM_ref_udata:                return "DW_FORM_ref_udata";
  case DW_FORM_indirect:                 return "DW_FORM_indirect";
  case DW_FORM_sec_offset:               return "DW_FORM_sec_offset";
  case DW_FORM_exprloc:                  return "DW_FORM_exprloc";
  case DW_FORM_flag_present:             return "DW_FORM_flag_present";
  case DW_FORM_ref_sig8:                 return "DW_FORM_ref_sig8";

    // DWARF5 Fission Extension Forms
  case DW_FORM_GNU_addr_index:           return "DW_FORM_GNU_addr_index";
  case DW_FORM_GNU_str_index:            return "DW_FORM_GNU_str_index";
  }
  return nullptr;
}

/// OperationEncodingString - Return the string for the specified operation
/// encoding.
const char *llvm::dwarf::OperationEncodingString(unsigned Encoding) {
  switch (Encoding) {
  case DW_OP_addr:                       return "DW_OP_addr";
  case DW_OP_deref:                      return "DW_OP_deref";
  case DW_OP_const1u:                    return "DW_OP_const1u";
  case DW_OP_const1s:                    return "DW_OP_const1s";
  case DW_OP_const2u:                    return "DW_OP_const2u";
  case DW_OP_const2s:                    return "DW_OP_const2s";
  case DW_OP_const4u:                    return "DW_OP_const4u";
  case DW_OP_const4s:                    return "DW_OP_const4s";
  case DW_OP_const8u:                    return "DW_OP_const8u";
  case DW_OP_const8s:                    return "DW_OP_const8s";
  case DW_OP_constu:                     return "DW_OP_constu";
  case DW_OP_consts:                     return "DW_OP_consts";
  case DW_OP_dup:                        return "DW_OP_dup";
  case DW_OP_drop:                       return "DW_OP_drop";
  case DW_OP_over:                       return "DW_OP_over";
  case DW_OP_pick:                       return "DW_OP_pick";
  case DW_OP_swap:                       return "DW_OP_swap";
  case DW_OP_rot:                        return "DW_OP_rot";
  case DW_OP_xderef:                     return "DW_OP_xderef";
  case DW_OP_abs:                        return "DW_OP_abs";
  case DW_OP_and:                        return "DW_OP_and";
  case DW_OP_div:                        return "DW_OP_div";
  case DW_OP_minus:                      return "DW_OP_minus";
  case DW_OP_mod:                        return "DW_OP_mod";
  case DW_OP_mul:                        return "DW_OP_mul";
  case DW_OP_neg:                        return "DW_OP_neg";
  case DW_OP_not:                        return "DW_OP_not";
  case DW_OP_or:                         return "DW_OP_or";
  case DW_OP_plus:                       return "DW_OP_plus";
  case DW_OP_plus_uconst:                return "DW_OP_plus_uconst";
  case DW_OP_shl:                        return "DW_OP_shl";
  case DW_OP_shr:                        return "DW_OP_shr";
  case DW_OP_shra:                       return "DW_OP_shra";
  case DW_OP_xor:                        return "DW_OP_xor";
  case DW_OP_skip:                       return "DW_OP_skip";
  case DW_OP_bra:                        return "DW_OP_bra";
  case DW_OP_eq:                         return "DW_OP_eq";
  case DW_OP_ge:                         return "DW_OP_ge";
  case DW_OP_gt:                         return "DW_OP_gt";
  case DW_OP_le:                         return "DW_OP_le";
  case DW_OP_lt:                         return "DW_OP_lt";
  case DW_OP_ne:                         return "DW_OP_ne";
  case DW_OP_lit0:                       return "DW_OP_lit0";
  case DW_OP_lit1:                       return "DW_OP_lit1";
  case DW_OP_lit2:                       return "DW_OP_lit2";
  case DW_OP_lit3:                       return "DW_OP_lit3";
  case DW_OP_lit4:                       return "DW_OP_lit4";
  case DW_OP_lit5:                       return "DW_OP_lit5";
  case DW_OP_lit6:                       return "DW_OP_lit6";
  case DW_OP_lit7:                       return "DW_OP_lit7";
  case DW_OP_lit8:                       return "DW_OP_lit8";
  case DW_OP_lit9:                       return "DW_OP_lit9";
  case DW_OP_lit10:                      return "DW_OP_lit10";
  case DW_OP_lit11:                      return "DW_OP_lit11";
  case DW_OP_lit12:                      return "DW_OP_lit12";
  case DW_OP_lit13:                      return "DW_OP_lit13";
  case DW_OP_lit14:                      return "DW_OP_lit14";
  case DW_OP_lit15:                      return "DW_OP_lit15";
  case DW_OP_lit16:                      return "DW_OP_lit16";
  case DW_OP_lit17:                      return "DW_OP_lit17";
  case DW_OP_lit18:                      return "DW_OP_lit18";
  case DW_OP_lit19:                      return "DW_OP_lit19";
  case DW_OP_lit20:                      return "DW_OP_lit20";
  case DW_OP_lit21:                      return "DW_OP_lit21";
  case DW_OP_lit22:                      return "DW_OP_lit22";
  case DW_OP_lit23:                      return "DW_OP_lit23";
  case DW_OP_lit24:                      return "DW_OP_lit24";
  case DW_OP_lit25:                      return "DW_OP_lit25";
  case DW_OP_lit26:                      return "DW_OP_lit26";
  case DW_OP_lit27:                      return "DW_OP_lit27";
  case DW_OP_lit28:                      return "DW_OP_lit28";
  case DW_OP_lit29:                      return "DW_OP_lit29";
  case DW_OP_lit30:                      return "DW_OP_lit30";
  case DW_OP_lit31:                      return "DW_OP_lit31";
  case DW_OP_reg0:                       return "DW_OP_reg0";
  case DW_OP_reg1:                       return "DW_OP_reg1";
  case DW_OP_reg2:                       return "DW_OP_reg2";
  case DW_OP_reg3:                       return "DW_OP_reg3";
  case DW_OP_reg4:                       return "DW_OP_reg4";
  case DW_OP_reg5:                       return "DW_OP_reg5";
  case DW_OP_reg6:                       return "DW_OP_reg6";
  case DW_OP_reg7:                       return "DW_OP_reg7";
  case DW_OP_reg8:                       return "DW_OP_reg8";
  case DW_OP_reg9:                       return "DW_OP_reg9";
  case DW_OP_reg10:                      return "DW_OP_reg10";
  case DW_OP_reg11:                      return "DW_OP_reg11";
  case DW_OP_reg12:                      return "DW_OP_reg12";
  case DW_OP_reg13:                      return "DW_OP_reg13";
  case DW_OP_reg14:                      return "DW_OP_reg14";
  case DW_OP_reg15:                      return "DW_OP_reg15";
  case DW_OP_reg16:                      return "DW_OP_reg16";
  case DW_OP_reg17:                      return "DW_OP_reg17";
  case DW_OP_reg18:                      return "DW_OP_reg18";
  case DW_OP_reg19:                      return "DW_OP_reg19";
  case DW_OP_reg20:                      return "DW_OP_reg20";
  case DW_OP_reg21:                      return "DW_OP_reg21";
  case DW_OP_reg22:                      return "DW_OP_reg22";
  case DW_OP_reg23:                      return "DW_OP_reg23";
  case DW_OP_reg24:                      return "DW_OP_reg24";
  case DW_OP_reg25:                      return "DW_OP_reg25";
  case DW_OP_reg26:                      return "DW_OP_reg26";
  case DW_OP_reg27:                      return "DW_OP_reg27";
  case DW_OP_reg28:                      return "DW_OP_reg28";
  case DW_OP_reg29:                      return "DW_OP_reg29";
  case DW_OP_reg30:                      return "DW_OP_reg30";
  case DW_OP_reg31:                      return "DW_OP_reg31";
  case DW_OP_breg0:                      return "DW_OP_breg0";
  case DW_OP_breg1:                      return "DW_OP_breg1";
  case DW_OP_breg2:                      return "DW_OP_breg2";
  case DW_OP_breg3:                      return "DW_OP_breg3";
  case DW_OP_breg4:                      return "DW_OP_breg4";
  case DW_OP_breg5:                      return "DW_OP_breg5";
  case DW_OP_breg6:                      return "DW_OP_breg6";
  case DW_OP_breg7:                      return "DW_OP_breg7";
  case DW_OP_breg8:                      return "DW_OP_breg8";
  case DW_OP_breg9:                      return "DW_OP_breg9";
  case DW_OP_breg10:                     return "DW_OP_breg10";
  case DW_OP_breg11:                     return "DW_OP_breg11";
  case DW_OP_breg12:                     return "DW_OP_breg12";
  case DW_OP_breg13:                     return "DW_OP_breg13";
  case DW_OP_breg14:                     return "DW_OP_breg14";
  case DW_OP_breg15:                     return "DW_OP_breg15";
  case DW_OP_breg16:                     return "DW_OP_breg16";
  case DW_OP_breg17:                     return "DW_OP_breg17";
  case DW_OP_breg18:                     return "DW_OP_breg18";
  case DW_OP_breg19:                     return "DW_OP_breg19";
  case DW_OP_breg20:                     return "DW_OP_breg20";
  case DW_OP_breg21:                     return "DW_OP_breg21";
  case DW_OP_breg22:                     return "DW_OP_breg22";
  case DW_OP_breg23:                     return "DW_OP_breg23";
  case DW_OP_breg24:                     return "DW_OP_breg24";
  case DW_OP_breg25:                     return "DW_OP_breg25";
  case DW_OP_breg26:                     return "DW_OP_breg26";
  case DW_OP_breg27:                     return "DW_OP_breg27";
  case DW_OP_breg28:                     return "DW_OP_breg28";
  case DW_OP_breg29:                     return "DW_OP_breg29";
  case DW_OP_breg30:                     return "DW_OP_breg30";
  case DW_OP_breg31:                     return "DW_OP_breg31";
  case DW_OP_regx:                       return "DW_OP_regx";
  case DW_OP_fbreg:                      return "DW_OP_fbreg";
  case DW_OP_bregx:                      return "DW_OP_bregx";
  case DW_OP_piece:                      return "DW_OP_piece";
  case DW_OP_deref_size:                 return "DW_OP_deref_size";
  case DW_OP_xderef_size:                return "DW_OP_xderef_size";
  case DW_OP_nop:                        return "DW_OP_nop";
  case DW_OP_push_object_address:        return "DW_OP_push_object_address";
  case DW_OP_call2:                      return "DW_OP_call2";
  case DW_OP_call4:                      return "DW_OP_call4";
  case DW_OP_call_ref:                   return "DW_OP_call_ref";
  case DW_OP_form_tls_address:           return "DW_OP_form_tls_address";
  case DW_OP_call_frame_cfa:             return "DW_OP_call_frame_cfa";
  case DW_OP_bit_piece:                  return "DW_OP_bit_piece";
  case DW_OP_implicit_value:             return "DW_OP_implicit_value";
  case DW_OP_stack_value:                return "DW_OP_stack_value";

  // GNU thread-local storage
  case DW_OP_GNU_push_tls_address:       return "DW_OP_GNU_push_tls_address";

  // DWARF5 Fission Proposal Op Extensions
  case DW_OP_GNU_addr_index:             return "DW_OP_GNU_addr_index";
  case DW_OP_GNU_const_index:            return "DW_OP_GNU_const_index";
  }
  return nullptr;
}

/// AttributeEncodingString - Return the string for the specified attribute
/// encoding.
const char *llvm::dwarf::AttributeEncodingString(unsigned Encoding) {
  switch (Encoding) {
  case DW_ATE_address:                   return "DW_ATE_address";
  case DW_ATE_boolean:                   return "DW_ATE_boolean";
  case DW_ATE_complex_float:             return "DW_ATE_complex_float";
  case DW_ATE_float:                     return "DW_ATE_float";
  case DW_ATE_signed:                    return "DW_ATE_signed";
  case DW_ATE_signed_char:               return "DW_ATE_signed_char";
  case DW_ATE_unsigned:                  return "DW_ATE_unsigned";
  case DW_ATE_unsigned_char:             return "DW_ATE_unsigned_char";
  case DW_ATE_imaginary_float:           return "DW_ATE_imaginary_float";
  case DW_ATE_UTF:                       return "DW_ATE_UTF";
  case DW_ATE_packed_decimal:            return "DW_ATE_packed_decimal";
  case DW_ATE_numeric_string:            return "DW_ATE_numeric_string";
  case DW_ATE_edited:                    return "DW_ATE_edited";
  case DW_ATE_signed_fixed:              return "DW_ATE_signed_fixed";
  case DW_ATE_unsigned_fixed:            return "DW_ATE_unsigned_fixed";
  case DW_ATE_decimal_float:             return "DW_ATE_decimal_float";
  case DW_ATE_lo_user:                   return "DW_ATE_lo_user";
  case DW_ATE_hi_user:                   return "DW_ATE_hi_user";
  }
  return nullptr;
}

/// DecimalSignString - Return the string for the specified decimal sign
/// attribute.
const char *llvm::dwarf::DecimalSignString(unsigned Sign) {
  switch (Sign) {
  case DW_DS_unsigned:                   return "DW_DS_unsigned";
  case DW_DS_leading_overpunch:          return "DW_DS_leading_overpunch";
  case DW_DS_trailing_overpunch:         return "DW_DS_trailing_overpunch";
  case DW_DS_leading_separate:           return "DW_DS_leading_separate";
  case DW_DS_trailing_separate:          return "DW_DS_trailing_separate";
  }
  return nullptr;
}

/// EndianityString - Return the string for the specified endianity.
///
const char *llvm::dwarf::EndianityString(unsigned Endian) {
  switch (Endian) {
  case DW_END_default:                   return "DW_END_default";
  case DW_END_big:                       return "DW_END_big";
  case DW_END_little:                    return "DW_END_little";
  case DW_END_lo_user:                   return "DW_END_lo_user";
  case DW_END_hi_user:                   return "DW_END_hi_user";
  }
  return nullptr;
}

/// AccessibilityString - Return the string for the specified accessibility.
///
const char *llvm::dwarf::AccessibilityString(unsigned Access) {
  switch (Access) {
  // Accessibility codes
  case DW_ACCESS_public:                 return "DW_ACCESS_public";
  case DW_ACCESS_protected:              return "DW_ACCESS_protected";
  case DW_ACCESS_private:                return "DW_ACCESS_private";
  }
  return nullptr;
}

/// VisibilityString - Return the string for the specified visibility.
///
const char *llvm::dwarf::VisibilityString(unsigned Visibility) {
  switch (Visibility) {
  case DW_VIS_local:                     return "DW_VIS_local";
  case DW_VIS_exported:                  return "DW_VIS_exported";
  case DW_VIS_qualified:                 return "DW_VIS_qualified";
  }
  return nullptr;
}

/// VirtualityString - Return the string for the specified virtuality.
///
const char *llvm::dwarf::VirtualityString(unsigned Virtuality) {
  switch (Virtuality) {
  case DW_VIRTUALITY_none:               return "DW_VIRTUALITY_none";
  case DW_VIRTUALITY_virtual:            return "DW_VIRTUALITY_virtual";
  case DW_VIRTUALITY_pure_virtual:       return "DW_VIRTUALITY_pure_virtual";
  }
  return nullptr;
}

/// LanguageString - Return the string for the specified language.
///
const char *llvm::dwarf::LanguageString(unsigned Language) {
  switch (Language) {
  case DW_LANG_C89:                      return "DW_LANG_C89";
  case DW_LANG_C:                        return "DW_LANG_C";
  case DW_LANG_Ada83:                    return "DW_LANG_Ada83";
  case DW_LANG_C_plus_plus:              return "DW_LANG_C_plus_plus";
  case DW_LANG_Cobol74:                  return "DW_LANG_Cobol74";
  case DW_LANG_Cobol85:                  return "DW_LANG_Cobol85";
  case DW_LANG_Fortran77:                return "DW_LANG_Fortran77";
  case DW_LANG_Fortran90:                return "DW_LANG_Fortran90";
  case DW_LANG_Pascal83:                 return "DW_LANG_Pascal83";
  case DW_LANG_Modula2:                  return "DW_LANG_Modula2";
  case DW_LANG_Java:                     return "DW_LANG_Java";
  case DW_LANG_C99:                      return "DW_LANG_C99";
  case DW_LANG_Ada95:                    return "DW_LANG_Ada95";
  case DW_LANG_Fortran95:                return "DW_LANG_Fortran95";
  case DW_LANG_PLI:                      return "DW_LANG_PLI";
  case DW_LANG_ObjC:                     return "DW_LANG_ObjC";
  case DW_LANG_ObjC_plus_plus:           return "DW_LANG_ObjC_plus_plus";
  case DW_LANG_UPC:                      return "DW_LANG_UPC";
  case DW_LANG_D:                        return "DW_LANG_D";
  case DW_LANG_Python:                   return "DW_LANG_Python";
  case DW_LANG_OpenCL:                   return "DW_LANG_OpenCL";
  case DW_LANG_Go:                       return "DW_LANG_Go";
  case DW_LANG_Modula3:                  return "DW_LANG_Modula3";
  case DW_LANG_Haskell:                  return "DW_LANG_Haskell";
  case DW_LANG_C_plus_plus_03:           return "DW_LANG_C_plus_plus_03";
  case DW_LANG_C_plus_plus_11:           return "DW_LANG_C_plus_plus_11";
  case DW_LANG_OCaml:                    return "DW_LANG_OCaml";
  case DW_LANG_lo_user:                  return "DW_LANG_lo_user";
  case DW_LANG_hi_user:                  return "DW_LANG_hi_user";
  }
  return nullptr;
}

/// CaseString - Return the string for the specified identifier case.
///
const char *llvm::dwarf::CaseString(unsigned Case) {
  switch (Case) {
  case DW_ID_case_sensitive:             return "DW_ID_case_sensitive";
  case DW_ID_up_case:                    return "DW_ID_up_case";
  case DW_ID_down_case:                  return "DW_ID_down_case";
  case DW_ID_case_insensitive:           return "DW_ID_case_insensitive";
  }
  return nullptr;
}

/// ConventionString - Return the string for the specified calling convention.
///
const char *llvm::dwarf::ConventionString(unsigned Convention) {
   switch (Convention) {
   case DW_CC_normal:                     return "DW_CC_normal";
   case DW_CC_program:                    return "DW_CC_program";
   case DW_CC_nocall:                     return "DW_CC_nocall";
   case DW_CC_lo_user:                    return "DW_CC_lo_user";
   case DW_CC_hi_user:                    return "DW_CC_hi_user";
  }
  return nullptr;
}

/// InlineCodeString - Return the string for the specified inline code.
///
const char *llvm::dwarf::InlineCodeString(unsigned Code) {
  switch (Code) {
  case DW_INL_not_inlined:               return "DW_INL_not_inlined";
  case DW_INL_inlined:                   return "DW_INL_inlined";
  case DW_INL_declared_not_inlined:      return "DW_INL_declared_not_inlined";
  case DW_INL_declared_inlined:          return "DW_INL_declared_inlined";
  }
  return nullptr;
}

/// ArrayOrderString - Return the string for the specified array order.
///
const char *llvm::dwarf::ArrayOrderString(unsigned Order) {
  switch (Order) {
  case DW_ORD_row_major:                 return "DW_ORD_row_major";
  case DW_ORD_col_major:                 return "DW_ORD_col_major";
  }
  return nullptr;
}

/// DiscriminantString - Return the string for the specified discriminant
/// descriptor.
const char *llvm::dwarf::DiscriminantString(unsigned Discriminant) {
  switch (Discriminant) {
  case DW_DSC_label:                     return "DW_DSC_label";
  case DW_DSC_range:                     return "DW_DSC_range";
  }
  return nullptr;
}

/// LNStandardString - Return the string for the specified line number standard.
///
const char *llvm::dwarf::LNStandardString(unsigned Standard) {
  switch (Standard) {
  case DW_LNS_copy:                      return "DW_LNS_copy";
  case DW_LNS_advance_pc:                return "DW_LNS_advance_pc";
  case DW_LNS_advance_line:              return "DW_LNS_advance_line";
  case DW_LNS_set_file:                  return "DW_LNS_set_file";
  case DW_LNS_set_column:                return "DW_LNS_set_column";
  case DW_LNS_negate_stmt:               return "DW_LNS_negate_stmt";
  case DW_LNS_set_basic_block:           return "DW_LNS_set_basic_block";
  case DW_LNS_const_add_pc:              return "DW_LNS_const_add_pc";
  case DW_LNS_fixed_advance_pc:          return "DW_LNS_fixed_advance_pc";
  case DW_LNS_set_prologue_end:          return "DW_LNS_set_prologue_end";
  case DW_LNS_set_epilogue_begin:        return "DW_LNS_set_epilogue_begin";
  case DW_LNS_set_isa:                   return "DW_LNS_set_isa";
  }
  return nullptr;
}

/// LNExtendedString - Return the string for the specified line number extended
/// opcode encodings.
const char *llvm::dwarf::LNExtendedString(unsigned Encoding) {
  switch (Encoding) {
  // Line Number Extended Opcode Encodings
  case DW_LNE_end_sequence:              return "DW_LNE_end_sequence";
  case DW_LNE_set_address:               return "DW_LNE_set_address";
  case DW_LNE_define_file:               return "DW_LNE_define_file";
  case DW_LNE_set_discriminator:         return "DW_LNE_set_discriminator";
  case DW_LNE_lo_user:                   return "DW_LNE_lo_user";
  case DW_LNE_hi_user:                   return "DW_LNE_hi_user";
  }
  return nullptr;
}

/// MacinfoString - Return the string for the specified macinfo type encodings.
///
const char *llvm::dwarf::MacinfoString(unsigned Encoding) {
  switch (Encoding) {
  // Macinfo Type Encodings
  case DW_MACINFO_define:                return "DW_MACINFO_define";
  case DW_MACINFO_undef:                 return "DW_MACINFO_undef";
  case DW_MACINFO_start_file:            return "DW_MACINFO_start_file";
  case DW_MACINFO_end_file:              return "DW_MACINFO_end_file";
  case DW_MACINFO_vendor_ext:            return "DW_MACINFO_vendor_ext";
  }
  return nullptr;
}

/// CallFrameString - Return the string for the specified call frame instruction
/// encodings.
const char *llvm::dwarf::CallFrameString(unsigned Encoding) {
  switch (Encoding) {
  case DW_CFA_nop:                       return "DW_CFA_nop";
  case DW_CFA_advance_loc:               return "DW_CFA_advance_loc";
  case DW_CFA_offset:                    return "DW_CFA_offset";
  case DW_CFA_restore:                   return "DW_CFA_restore";
  case DW_CFA_set_loc:                   return "DW_CFA_set_loc";
  case DW_CFA_advance_loc1:              return "DW_CFA_advance_loc1";
  case DW_CFA_advance_loc2:              return "DW_CFA_advance_loc2";
  case DW_CFA_advance_loc4:              return "DW_CFA_advance_loc4";
  case DW_CFA_offset_extended:           return "DW_CFA_offset_extended";
  case DW_CFA_restore_extended:          return "DW_CFA_restore_extended";
  case DW_CFA_undefined:                 return "DW_CFA_undefined";
  case DW_CFA_same_value:                return "DW_CFA_same_value";
  case DW_CFA_register:                  return "DW_CFA_register";
  case DW_CFA_remember_state:            return "DW_CFA_remember_state";
  case DW_CFA_restore_state:             return "DW_CFA_restore_state";
  case DW_CFA_def_cfa:                   return "DW_CFA_def_cfa";
  case DW_CFA_def_cfa_register:          return "DW_CFA_def_cfa_register";
  case DW_CFA_def_cfa_offset:            return "DW_CFA_def_cfa_offset";
  case DW_CFA_def_cfa_expression:        return "DW_CFA_def_cfa_expression";
  case DW_CFA_expression:                return "DW_CFA_expression";
  case DW_CFA_offset_extended_sf:        return "DW_CFA_offset_extended_sf";
  case DW_CFA_def_cfa_sf:                return "DW_CFA_def_cfa_sf";
  case DW_CFA_def_cfa_offset_sf:         return "DW_CFA_def_cfa_offset_sf";
  case DW_CFA_val_offset:                return "DW_CFA_val_offset";
  case DW_CFA_val_offset_sf:             return "DW_CFA_val_offset_sf";
  case DW_CFA_val_expression:            return "DW_CFA_val_expression";
  case DW_CFA_MIPS_advance_loc8:         return "DW_CFA_MIPS_advance_loc8";
  case DW_CFA_GNU_window_save:           return "DW_CFA_GNU_window_save";
  case DW_CFA_GNU_args_size:             return "DW_CFA_GNU_args_size";
  case DW_CFA_lo_user:                   return "DW_CFA_lo_user";
  case DW_CFA_hi_user:                   return "DW_CFA_hi_user";
  }
  return nullptr;
}

const char *llvm::dwarf::AtomTypeString(unsigned AT) {
  switch (AT) {
  case dwarf::DW_ATOM_null:
    return "DW_ATOM_null";
  case dwarf::DW_ATOM_die_offset:
    return "DW_ATOM_die_offset";
  case DW_ATOM_cu_offset:
    return "DW_ATOM_cu_offset";
  case DW_ATOM_die_tag:
    return "DW_ATOM_die_tag";
  case DW_ATOM_type_flags:
    return "DW_ATOM_type_flags";
  }
  return nullptr;
}

const char *llvm::dwarf::GDBIndexEntryKindString(GDBIndexEntryKind Kind) {
  switch (Kind) {
  case GIEK_NONE:
    return "NONE";
  case GIEK_TYPE:
    return "TYPE";
  case GIEK_VARIABLE:
    return "VARIABLE";
  case GIEK_FUNCTION:
    return "FUNCTION";
  case GIEK_OTHER:
    return "OTHER";
  case GIEK_UNUSED5:
    return "UNUSED5";
  case GIEK_UNUSED6:
    return "UNUSED6";
  case GIEK_UNUSED7:
    return "UNUSED7";
  }
  llvm_unreachable("Unknown GDBIndexEntryKind value");
}

const char *llvm::dwarf::GDBIndexEntryLinkageString(GDBIndexEntryLinkage Linkage) {
  switch (Linkage) {
  case GIEL_EXTERNAL:
    return "EXTERNAL";
  case GIEL_STATIC:
    return "STATIC";
  }
  llvm_unreachable("Unknown GDBIndexEntryLinkage value");
}