Move the complex address expression out of DIVariable and into an extra
[oota-llvm.git] / lib / Support / Dwarf.cpp
1 //===-- llvm/Support/Dwarf.cpp - Dwarf Framework ----------------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file contains support for generic dwarf information.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "llvm/Support/Dwarf.h"
15 #include "llvm/Support/ErrorHandling.h"
16
17 using namespace llvm;
18 using namespace dwarf;
19
20 /// TagString - Return the string for the specified tag.
21 ///
22 const char *llvm::dwarf::TagString(unsigned Tag) {
23   switch (Tag) {
24   case DW_TAG_array_type:                return "DW_TAG_array_type";
25   case DW_TAG_class_type:                return "DW_TAG_class_type";
26   case DW_TAG_entry_point:               return "DW_TAG_entry_point";
27   case DW_TAG_enumeration_type:          return "DW_TAG_enumeration_type";
28   case DW_TAG_formal_parameter:          return "DW_TAG_formal_parameter";
29   case DW_TAG_imported_declaration:      return "DW_TAG_imported_declaration";
30   case DW_TAG_label:                     return "DW_TAG_label";
31   case DW_TAG_lexical_block:             return "DW_TAG_lexical_block";
32   case DW_TAG_member:                    return "DW_TAG_member";
33   case DW_TAG_pointer_type:              return "DW_TAG_pointer_type";
34   case DW_TAG_reference_type:            return "DW_TAG_reference_type";
35   case DW_TAG_compile_unit:              return "DW_TAG_compile_unit";
36   case DW_TAG_string_type:               return "DW_TAG_string_type";
37   case DW_TAG_structure_type:            return "DW_TAG_structure_type";
38   case DW_TAG_subroutine_type:           return "DW_TAG_subroutine_type";
39   case DW_TAG_typedef:                   return "DW_TAG_typedef";
40   case DW_TAG_union_type:                return "DW_TAG_union_type";
41   case DW_TAG_unspecified_parameters:    return "DW_TAG_unspecified_parameters";
42   case DW_TAG_variant:                   return "DW_TAG_variant";
43   case DW_TAG_common_block:              return "DW_TAG_common_block";
44   case DW_TAG_common_inclusion:          return "DW_TAG_common_inclusion";
45   case DW_TAG_inheritance:               return "DW_TAG_inheritance";
46   case DW_TAG_inlined_subroutine:        return "DW_TAG_inlined_subroutine";
47   case DW_TAG_module:                    return "DW_TAG_module";
48   case DW_TAG_ptr_to_member_type:        return "DW_TAG_ptr_to_member_type";
49   case DW_TAG_set_type:                  return "DW_TAG_set_type";
50   case DW_TAG_subrange_type:             return "DW_TAG_subrange_type";
51   case DW_TAG_with_stmt:                 return "DW_TAG_with_stmt";
52   case DW_TAG_access_declaration:        return "DW_TAG_access_declaration";
53   case DW_TAG_base_type:                 return "DW_TAG_base_type";
54   case DW_TAG_catch_block:               return "DW_TAG_catch_block";
55   case DW_TAG_const_type:                return "DW_TAG_const_type";
56   case DW_TAG_constant:                  return "DW_TAG_constant";
57   case DW_TAG_enumerator:                return "DW_TAG_enumerator";
58   case DW_TAG_file_type:                 return "DW_TAG_file_type";
59   case DW_TAG_friend:                    return "DW_TAG_friend";
60   case DW_TAG_namelist:                  return "DW_TAG_namelist";
61   case DW_TAG_namelist_item:             return "DW_TAG_namelist_item";
62   case DW_TAG_packed_type:               return "DW_TAG_packed_type";
63   case DW_TAG_subprogram:                return "DW_TAG_subprogram";
64   case DW_TAG_template_type_parameter:   return "DW_TAG_template_type_parameter";
65   case DW_TAG_template_value_parameter:  return "DW_TAG_template_value_parameter";
66   case DW_TAG_thrown_type:               return "DW_TAG_thrown_type";
67   case DW_TAG_try_block:                 return "DW_TAG_try_block";
68   case DW_TAG_variant_part:              return "DW_TAG_variant_part";
69   case DW_TAG_variable:                  return "DW_TAG_variable";
70   case DW_TAG_volatile_type:             return "DW_TAG_volatile_type";
71   case DW_TAG_dwarf_procedure:           return "DW_TAG_dwarf_procedure";
72   case DW_TAG_restrict_type:             return "DW_TAG_restrict_type";
73   case DW_TAG_interface_type:            return "DW_TAG_interface_type";
74   case DW_TAG_namespace:                 return "DW_TAG_namespace";
75   case DW_TAG_imported_module:           return "DW_TAG_imported_module";
76   case DW_TAG_unspecified_type:          return "DW_TAG_unspecified_type";
77   case DW_TAG_partial_unit:              return "DW_TAG_partial_unit";
78   case DW_TAG_imported_unit:             return "DW_TAG_imported_unit";
79   case DW_TAG_condition:                 return "DW_TAG_condition";
80   case DW_TAG_shared_type:               return "DW_TAG_shared_type";
81   case DW_TAG_lo_user:                   return "DW_TAG_lo_user";
82   case DW_TAG_hi_user:                   return "DW_TAG_hi_user";
83   case DW_TAG_auto_variable:             return "DW_TAG_auto_variable";
84   case DW_TAG_arg_variable:              return "DW_TAG_arg_variable";
85   case DW_TAG_expression:
86     return "DW_TAG_expression";
87   case DW_TAG_rvalue_reference_type:     return "DW_TAG_rvalue_reference_type";
88   case DW_TAG_template_alias:            return "DW_TAG_template_alias";
89   case DW_TAG_coarray_type:              return "DW_TAG_coarray_type";
90   case DW_TAG_generic_subrange:          return "DW_TAG_generic_subrange";
91   case DW_TAG_dynamic_type:              return "DW_TAG_dynamic_type";
92   case DW_TAG_MIPS_loop:                 return "DW_TAG_MIPS_loop";
93   case DW_TAG_type_unit:                 return "DW_TAG_type_unit";
94   case DW_TAG_format_label:              return "DW_TAG_format_label";
95   case DW_TAG_function_template:         return "DW_TAG_function_template";
96   case DW_TAG_class_template:            return "DW_TAG_class_template";
97   case DW_TAG_GNU_template_template_param:
98     return "DW_TAG_GNU_template_template_param";
99   case DW_TAG_GNU_template_parameter_pack:
100     return "DW_TAG_GNU_template_parameter_pack";
101   case DW_TAG_GNU_formal_parameter_pack:
102     return "DW_TAG_GNU_formal_parameter_pack";
103   case DW_TAG_APPLE_property:            return "DW_TAG_APPLE_property";
104   }
105   return nullptr;
106 }
107
108 /// ChildrenString - Return the string for the specified children flag.
109 ///
110 const char *llvm::dwarf::ChildrenString(unsigned Children) {
111   switch (Children) {
112   case DW_CHILDREN_no:                   return "DW_CHILDREN_no";
113   case DW_CHILDREN_yes:                  return "DW_CHILDREN_yes";
114   }
115   return nullptr;
116 }
117
118 /// AttributeString - Return the string for the specified attribute.
119 ///
120 const char *llvm::dwarf::AttributeString(unsigned Attribute) {
121   switch (Attribute) {
122   case DW_AT_sibling:                    return "DW_AT_sibling";
123   case DW_AT_location:                   return "DW_AT_location";
124   case DW_AT_name:                       return "DW_AT_name";
125   case DW_AT_ordering:                   return "DW_AT_ordering";
126   case DW_AT_byte_size:                  return "DW_AT_byte_size";
127   case DW_AT_bit_offset:                 return "DW_AT_bit_offset";
128   case DW_AT_bit_size:                   return "DW_AT_bit_size";
129   case DW_AT_stmt_list:                  return "DW_AT_stmt_list";
130   case DW_AT_low_pc:                     return "DW_AT_low_pc";
131   case DW_AT_high_pc:                    return "DW_AT_high_pc";
132   case DW_AT_language:                   return "DW_AT_language";
133   case DW_AT_discr:                      return "DW_AT_discr";
134   case DW_AT_discr_value:                return "DW_AT_discr_value";
135   case DW_AT_visibility:                 return "DW_AT_visibility";
136   case DW_AT_import:                     return "DW_AT_import";
137   case DW_AT_string_length:              return "DW_AT_string_length";
138   case DW_AT_common_reference:           return "DW_AT_common_reference";
139   case DW_AT_comp_dir:                   return "DW_AT_comp_dir";
140   case DW_AT_const_value:                return "DW_AT_const_value";
141   case DW_AT_containing_type:            return "DW_AT_containing_type";
142   case DW_AT_default_value:              return "DW_AT_default_value";
143   case DW_AT_inline:                     return "DW_AT_inline";
144   case DW_AT_is_optional:                return "DW_AT_is_optional";
145   case DW_AT_lower_bound:                return "DW_AT_lower_bound";
146   case DW_AT_producer:                   return "DW_AT_producer";
147   case DW_AT_prototyped:                 return "DW_AT_prototyped";
148   case DW_AT_return_addr:                return "DW_AT_return_addr";
149   case DW_AT_start_scope:                return "DW_AT_start_scope";
150   case DW_AT_bit_stride:                 return "DW_AT_bit_stride";
151   case DW_AT_upper_bound:                return "DW_AT_upper_bound";
152   case DW_AT_abstract_origin:            return "DW_AT_abstract_origin";
153   case DW_AT_accessibility:              return "DW_AT_accessibility";
154   case DW_AT_address_class:              return "DW_AT_address_class";
155   case DW_AT_artificial:                 return "DW_AT_artificial";
156   case DW_AT_base_types:                 return "DW_AT_base_types";
157   case DW_AT_calling_convention:         return "DW_AT_calling_convention";
158   case DW_AT_count:                      return "DW_AT_count";
159   case DW_AT_data_member_location:       return "DW_AT_data_member_location";
160   case DW_AT_decl_column:                return "DW_AT_decl_column";
161   case DW_AT_decl_file:                  return "DW_AT_decl_file";
162   case DW_AT_decl_line:                  return "DW_AT_decl_line";
163   case DW_AT_declaration:                return "DW_AT_declaration";
164   case DW_AT_discr_list:                 return "DW_AT_discr_list";
165   case DW_AT_encoding:                   return "DW_AT_encoding";
166   case DW_AT_external:                   return "DW_AT_external";
167   case DW_AT_frame_base:                 return "DW_AT_frame_base";
168   case DW_AT_friend:                     return "DW_AT_friend";
169   case DW_AT_identifier_case:            return "DW_AT_identifier_case";
170   case DW_AT_macro_info:                 return "DW_AT_macro_info";
171   case DW_AT_namelist_item:              return "DW_AT_namelist_item";
172   case DW_AT_priority:                   return "DW_AT_priority";
173   case DW_AT_segment:                    return "DW_AT_segment";
174   case DW_AT_specification:              return "DW_AT_specification";
175   case DW_AT_static_link:                return "DW_AT_static_link";
176   case DW_AT_type:                       return "DW_AT_type";
177   case DW_AT_use_location:               return "DW_AT_use_location";
178   case DW_AT_variable_parameter:         return "DW_AT_variable_parameter";
179   case DW_AT_virtuality:                 return "DW_AT_virtuality";
180   case DW_AT_vtable_elem_location:       return "DW_AT_vtable_elem_location";
181   case DW_AT_allocated:                  return "DW_AT_allocated";
182   case DW_AT_associated:                 return "DW_AT_associated";
183   case DW_AT_data_location:              return "DW_AT_data_location";
184   case DW_AT_byte_stride:                return "DW_AT_byte_stride";
185   case DW_AT_entry_pc:                   return "DW_AT_entry_pc";
186   case DW_AT_use_UTF8:                   return "DW_AT_use_UTF8";
187   case DW_AT_extension:                  return "DW_AT_extension";
188   case DW_AT_ranges:                     return "DW_AT_ranges";
189   case DW_AT_trampoline:                 return "DW_AT_trampoline";
190   case DW_AT_call_column:                return "DW_AT_call_column";
191   case DW_AT_call_file:                  return "DW_AT_call_file";
192   case DW_AT_call_line:                  return "DW_AT_call_line";
193   case DW_AT_description:                return "DW_AT_description";
194   case DW_AT_binary_scale:               return "DW_AT_binary_scale";
195   case DW_AT_decimal_scale:              return "DW_AT_decimal_scale";
196   case DW_AT_small:                      return "DW_AT_small";
197   case DW_AT_decimal_sign:               return "DW_AT_decimal_sign";
198   case DW_AT_digit_count:                return "DW_AT_digit_count";
199   case DW_AT_picture_string:             return "DW_AT_picture_string";
200   case DW_AT_mutable:                    return "DW_AT_mutable";
201   case DW_AT_threads_scaled:             return "DW_AT_threads_scaled";
202   case DW_AT_explicit:                   return "DW_AT_explicit";
203   case DW_AT_object_pointer:             return "DW_AT_object_pointer";
204   case DW_AT_endianity:                  return "DW_AT_endianity";
205   case DW_AT_elemental:                  return "DW_AT_elemental";
206   case DW_AT_pure:                       return "DW_AT_pure";
207   case DW_AT_recursive:                  return "DW_AT_recursive";
208   case DW_AT_signature:                  return "DW_AT_signature";
209   case DW_AT_main_subprogram:            return "DW_AT_main_subprogram";
210   case DW_AT_data_bit_offset:            return "DW_AT_data_bit_offset";
211   case DW_AT_const_expr:                 return "DW_AT_const_expr";
212   case DW_AT_enum_class:                 return "DW_AT_enum_class";
213   case DW_AT_linkage_name:               return "DW_AT_linkage_name";
214   case DW_AT_string_length_bit_size:     return "DW_AT_string_length_bit_size";
215   case DW_AT_string_length_byte_size:    return "DW_AT_string_length_byte_size";
216   case DW_AT_rank:                       return "DW_AT_rank";
217   case DW_AT_str_offsets_base:           return "DW_AT_str_offsets_base";
218   case DW_AT_addr_base:                  return "DW_AT_addr_base";
219   case DW_AT_ranges_base:                return "DW_AT_ranges_base";
220   case DW_AT_dwo_id:                     return "DW_AT_dwo_id";
221   case DW_AT_dwo_name:                   return "DW_AT_dwo_name";
222   case DW_AT_reference:                  return "DW_AT_reference";
223   case DW_AT_rvalue_reference:           return "DW_AT_rvalue_reference";
224   case DW_AT_MIPS_loop_begin:            return "DW_AT_MIPS_loop_begin";
225   case DW_AT_MIPS_tail_loop_begin:       return "DW_AT_MIPS_tail_loop_begin";
226   case DW_AT_MIPS_epilog_begin:          return "DW_AT_MIPS_epilog_begin";
227   case DW_AT_MIPS_loop_unroll_factor:    return "DW_AT_MIPS_loop_unroll_factor";
228   case DW_AT_MIPS_software_pipeline_depth:
229     return "DW_AT_MIPS_software_pipeline_depth";
230   case DW_AT_MIPS_linkage_name:          return "DW_AT_MIPS_linkage_name";
231   case DW_AT_MIPS_stride:                return "DW_AT_MIPS_stride";
232   case DW_AT_MIPS_abstract_name:         return "DW_AT_MIPS_abstract_name";
233   case DW_AT_MIPS_clone_origin:          return "DW_AT_MIPS_clone_origin";
234   case DW_AT_MIPS_has_inlines:           return "DW_AT_MIPS_has_inlines";
235   case DW_AT_MIPS_stride_byte:           return "DW_AT_MIPS_stride_byte";
236   case DW_AT_MIPS_stride_elem:           return "DW_AT_MIPS_stride_elem";
237   case DW_AT_MIPS_ptr_dopetype:          return "DW_AT_MIPS_ptr_dopetype";
238   case DW_AT_MIPS_allocatable_dopetype:
239     return "DW_AT_MIPS_allocatable_dopetype";
240   case DW_AT_MIPS_assumed_shape_dopetype:
241     return "DW_AT_MIPS_assumed_shape_dopetype";
242   case DW_AT_sf_names:                   return "DW_AT_sf_names";
243   case DW_AT_src_info:                   return "DW_AT_src_info";
244   case DW_AT_mac_info:                   return "DW_AT_mac_info";
245   case DW_AT_src_coords:                 return "DW_AT_src_coords";
246   case DW_AT_body_begin:                 return "DW_AT_body_begin";
247   case DW_AT_body_end:                   return "DW_AT_body_end";
248   case DW_AT_GNU_vector:                 return "DW_AT_GNU_vector";
249   case DW_AT_GNU_template_name:          return "DW_AT_GNU_template_name";
250   case DW_AT_GNU_odr_signature:          return "DW_AT_GNU_odr_signature";
251   case DW_AT_MIPS_assumed_size:          return "DW_AT_MIPS_assumed_size";
252   case DW_AT_lo_user:                    return "DW_AT_lo_user";
253   case DW_AT_hi_user:                    return "DW_AT_hi_user";
254   case DW_AT_APPLE_optimized:            return "DW_AT_APPLE_optimized";
255   case DW_AT_APPLE_flags:                return "DW_AT_APPLE_flags";
256   case DW_AT_APPLE_isa:                  return "DW_AT_APPLE_isa";
257   case DW_AT_APPLE_block:                return "DW_AT_APPLE_block";
258   case DW_AT_APPLE_major_runtime_vers:   return "DW_AT_APPLE_major_runtime_vers";
259   case DW_AT_APPLE_runtime_class:        return "DW_AT_APPLE_runtime_class";
260   case DW_AT_APPLE_omit_frame_ptr:       return "DW_AT_APPLE_omit_frame_ptr";
261   case DW_AT_APPLE_property_name:        return "DW_AT_APPLE_property_name";
262   case DW_AT_APPLE_property_getter:      return "DW_AT_APPLE_property_getter";
263   case DW_AT_APPLE_property_setter:      return "DW_AT_APPLE_property_setter";
264   case DW_AT_APPLE_property_attribute:   return "DW_AT_APPLE_property_attribute";
265   case DW_AT_APPLE_property:             return "DW_AT_APPLE_property";
266   case DW_AT_APPLE_objc_complete_type:   return "DW_AT_APPLE_objc_complete_type";
267
268     // DWARF5 Fission Extension Attribute
269   case DW_AT_GNU_dwo_name:               return "DW_AT_GNU_dwo_name";
270   case DW_AT_GNU_dwo_id:                 return "DW_AT_GNU_dwo_id";
271   case DW_AT_GNU_ranges_base:            return "DW_AT_GNU_ranges_base";
272   case DW_AT_GNU_addr_base:              return "DW_AT_GNU_addr_base";
273   case DW_AT_GNU_pubnames:               return "DW_AT_GNU_pubnames";
274   case DW_AT_GNU_pubtypes:               return "DW_AT_GNU_pubtypes";
275   }
276   return nullptr;
277 }
278
279 /// FormEncodingString - Return the string for the specified form encoding.
280 ///
281 const char *llvm::dwarf::FormEncodingString(unsigned Encoding) {
282   switch (Encoding) {
283   case DW_FORM_addr:                     return "DW_FORM_addr";
284   case DW_FORM_block2:                   return "DW_FORM_block2";
285   case DW_FORM_block4:                   return "DW_FORM_block4";
286   case DW_FORM_data2:                    return "DW_FORM_data2";
287   case DW_FORM_data4:                    return "DW_FORM_data4";
288   case DW_FORM_data8:                    return "DW_FORM_data8";
289   case DW_FORM_string:                   return "DW_FORM_string";
290   case DW_FORM_block:                    return "DW_FORM_block";
291   case DW_FORM_block1:                   return "DW_FORM_block1";
292   case DW_FORM_data1:                    return "DW_FORM_data1";
293   case DW_FORM_flag:                     return "DW_FORM_flag";
294   case DW_FORM_sdata:                    return "DW_FORM_sdata";
295   case DW_FORM_strp:                     return "DW_FORM_strp";
296   case DW_FORM_udata:                    return "DW_FORM_udata";
297   case DW_FORM_ref_addr:                 return "DW_FORM_ref_addr";
298   case DW_FORM_ref1:                     return "DW_FORM_ref1";
299   case DW_FORM_ref2:                     return "DW_FORM_ref2";
300   case DW_FORM_ref4:                     return "DW_FORM_ref4";
301   case DW_FORM_ref8:                     return "DW_FORM_ref8";
302   case DW_FORM_ref_udata:                return "DW_FORM_ref_udata";
303   case DW_FORM_indirect:                 return "DW_FORM_indirect";
304   case DW_FORM_sec_offset:               return "DW_FORM_sec_offset";
305   case DW_FORM_exprloc:                  return "DW_FORM_exprloc";
306   case DW_FORM_flag_present:             return "DW_FORM_flag_present";
307   case DW_FORM_ref_sig8:                 return "DW_FORM_ref_sig8";
308
309     // DWARF5 Fission Extension Forms
310   case DW_FORM_GNU_addr_index:           return "DW_FORM_GNU_addr_index";
311   case DW_FORM_GNU_str_index:            return "DW_FORM_GNU_str_index";
312   }
313   return nullptr;
314 }
315
316 /// OperationEncodingString - Return the string for the specified operation
317 /// encoding.
318 const char *llvm::dwarf::OperationEncodingString(unsigned Encoding) {
319   switch (Encoding) {
320   case DW_OP_addr:                       return "DW_OP_addr";
321   case DW_OP_deref:                      return "DW_OP_deref";
322   case DW_OP_const1u:                    return "DW_OP_const1u";
323   case DW_OP_const1s:                    return "DW_OP_const1s";
324   case DW_OP_const2u:                    return "DW_OP_const2u";
325   case DW_OP_const2s:                    return "DW_OP_const2s";
326   case DW_OP_const4u:                    return "DW_OP_const4u";
327   case DW_OP_const4s:                    return "DW_OP_const4s";
328   case DW_OP_const8u:                    return "DW_OP_const8u";
329   case DW_OP_const8s:                    return "DW_OP_const8s";
330   case DW_OP_constu:                     return "DW_OP_constu";
331   case DW_OP_consts:                     return "DW_OP_consts";
332   case DW_OP_dup:                        return "DW_OP_dup";
333   case DW_OP_drop:                       return "DW_OP_drop";
334   case DW_OP_over:                       return "DW_OP_over";
335   case DW_OP_pick:                       return "DW_OP_pick";
336   case DW_OP_swap:                       return "DW_OP_swap";
337   case DW_OP_rot:                        return "DW_OP_rot";
338   case DW_OP_xderef:                     return "DW_OP_xderef";
339   case DW_OP_abs:                        return "DW_OP_abs";
340   case DW_OP_and:                        return "DW_OP_and";
341   case DW_OP_div:                        return "DW_OP_div";
342   case DW_OP_minus:                      return "DW_OP_minus";
343   case DW_OP_mod:                        return "DW_OP_mod";
344   case DW_OP_mul:                        return "DW_OP_mul";
345   case DW_OP_neg:                        return "DW_OP_neg";
346   case DW_OP_not:                        return "DW_OP_not";
347   case DW_OP_or:                         return "DW_OP_or";
348   case DW_OP_plus:                       return "DW_OP_plus";
349   case DW_OP_plus_uconst:                return "DW_OP_plus_uconst";
350   case DW_OP_shl:                        return "DW_OP_shl";
351   case DW_OP_shr:                        return "DW_OP_shr";
352   case DW_OP_shra:                       return "DW_OP_shra";
353   case DW_OP_xor:                        return "DW_OP_xor";
354   case DW_OP_skip:                       return "DW_OP_skip";
355   case DW_OP_bra:                        return "DW_OP_bra";
356   case DW_OP_eq:                         return "DW_OP_eq";
357   case DW_OP_ge:                         return "DW_OP_ge";
358   case DW_OP_gt:                         return "DW_OP_gt";
359   case DW_OP_le:                         return "DW_OP_le";
360   case DW_OP_lt:                         return "DW_OP_lt";
361   case DW_OP_ne:                         return "DW_OP_ne";
362   case DW_OP_lit0:                       return "DW_OP_lit0";
363   case DW_OP_lit1:                       return "DW_OP_lit1";
364   case DW_OP_lit2:                       return "DW_OP_lit2";
365   case DW_OP_lit3:                       return "DW_OP_lit3";
366   case DW_OP_lit4:                       return "DW_OP_lit4";
367   case DW_OP_lit5:                       return "DW_OP_lit5";
368   case DW_OP_lit6:                       return "DW_OP_lit6";
369   case DW_OP_lit7:                       return "DW_OP_lit7";
370   case DW_OP_lit8:                       return "DW_OP_lit8";
371   case DW_OP_lit9:                       return "DW_OP_lit9";
372   case DW_OP_lit10:                      return "DW_OP_lit10";
373   case DW_OP_lit11:                      return "DW_OP_lit11";
374   case DW_OP_lit12:                      return "DW_OP_lit12";
375   case DW_OP_lit13:                      return "DW_OP_lit13";
376   case DW_OP_lit14:                      return "DW_OP_lit14";
377   case DW_OP_lit15:                      return "DW_OP_lit15";
378   case DW_OP_lit16:                      return "DW_OP_lit16";
379   case DW_OP_lit17:                      return "DW_OP_lit17";
380   case DW_OP_lit18:                      return "DW_OP_lit18";
381   case DW_OP_lit19:                      return "DW_OP_lit19";
382   case DW_OP_lit20:                      return "DW_OP_lit20";
383   case DW_OP_lit21:                      return "DW_OP_lit21";
384   case DW_OP_lit22:                      return "DW_OP_lit22";
385   case DW_OP_lit23:                      return "DW_OP_lit23";
386   case DW_OP_lit24:                      return "DW_OP_lit24";
387   case DW_OP_lit25:                      return "DW_OP_lit25";
388   case DW_OP_lit26:                      return "DW_OP_lit26";
389   case DW_OP_lit27:                      return "DW_OP_lit27";
390   case DW_OP_lit28:                      return "DW_OP_lit28";
391   case DW_OP_lit29:                      return "DW_OP_lit29";
392   case DW_OP_lit30:                      return "DW_OP_lit30";
393   case DW_OP_lit31:                      return "DW_OP_lit31";
394   case DW_OP_reg0:                       return "DW_OP_reg0";
395   case DW_OP_reg1:                       return "DW_OP_reg1";
396   case DW_OP_reg2:                       return "DW_OP_reg2";
397   case DW_OP_reg3:                       return "DW_OP_reg3";
398   case DW_OP_reg4:                       return "DW_OP_reg4";
399   case DW_OP_reg5:                       return "DW_OP_reg5";
400   case DW_OP_reg6:                       return "DW_OP_reg6";
401   case DW_OP_reg7:                       return "DW_OP_reg7";
402   case DW_OP_reg8:                       return "DW_OP_reg8";
403   case DW_OP_reg9:                       return "DW_OP_reg9";
404   case DW_OP_reg10:                      return "DW_OP_reg10";
405   case DW_OP_reg11:                      return "DW_OP_reg11";
406   case DW_OP_reg12:                      return "DW_OP_reg12";
407   case DW_OP_reg13:                      return "DW_OP_reg13";
408   case DW_OP_reg14:                      return "DW_OP_reg14";
409   case DW_OP_reg15:                      return "DW_OP_reg15";
410   case DW_OP_reg16:                      return "DW_OP_reg16";
411   case DW_OP_reg17:                      return "DW_OP_reg17";
412   case DW_OP_reg18:                      return "DW_OP_reg18";
413   case DW_OP_reg19:                      return "DW_OP_reg19";
414   case DW_OP_reg20:                      return "DW_OP_reg20";
415   case DW_OP_reg21:                      return "DW_OP_reg21";
416   case DW_OP_reg22:                      return "DW_OP_reg22";
417   case DW_OP_reg23:                      return "DW_OP_reg23";
418   case DW_OP_reg24:                      return "DW_OP_reg24";
419   case DW_OP_reg25:                      return "DW_OP_reg25";
420   case DW_OP_reg26:                      return "DW_OP_reg26";
421   case DW_OP_reg27:                      return "DW_OP_reg27";
422   case DW_OP_reg28:                      return "DW_OP_reg28";
423   case DW_OP_reg29:                      return "DW_OP_reg29";
424   case DW_OP_reg30:                      return "DW_OP_reg30";
425   case DW_OP_reg31:                      return "DW_OP_reg31";
426   case DW_OP_breg0:                      return "DW_OP_breg0";
427   case DW_OP_breg1:                      return "DW_OP_breg1";
428   case DW_OP_breg2:                      return "DW_OP_breg2";
429   case DW_OP_breg3:                      return "DW_OP_breg3";
430   case DW_OP_breg4:                      return "DW_OP_breg4";
431   case DW_OP_breg5:                      return "DW_OP_breg5";
432   case DW_OP_breg6:                      return "DW_OP_breg6";
433   case DW_OP_breg7:                      return "DW_OP_breg7";
434   case DW_OP_breg8:                      return "DW_OP_breg8";
435   case DW_OP_breg9:                      return "DW_OP_breg9";
436   case DW_OP_breg10:                     return "DW_OP_breg10";
437   case DW_OP_breg11:                     return "DW_OP_breg11";
438   case DW_OP_breg12:                     return "DW_OP_breg12";
439   case DW_OP_breg13:                     return "DW_OP_breg13";
440   case DW_OP_breg14:                     return "DW_OP_breg14";
441   case DW_OP_breg15:                     return "DW_OP_breg15";
442   case DW_OP_breg16:                     return "DW_OP_breg16";
443   case DW_OP_breg17:                     return "DW_OP_breg17";
444   case DW_OP_breg18:                     return "DW_OP_breg18";
445   case DW_OP_breg19:                     return "DW_OP_breg19";
446   case DW_OP_breg20:                     return "DW_OP_breg20";
447   case DW_OP_breg21:                     return "DW_OP_breg21";
448   case DW_OP_breg22:                     return "DW_OP_breg22";
449   case DW_OP_breg23:                     return "DW_OP_breg23";
450   case DW_OP_breg24:                     return "DW_OP_breg24";
451   case DW_OP_breg25:                     return "DW_OP_breg25";
452   case DW_OP_breg26:                     return "DW_OP_breg26";
453   case DW_OP_breg27:                     return "DW_OP_breg27";
454   case DW_OP_breg28:                     return "DW_OP_breg28";
455   case DW_OP_breg29:                     return "DW_OP_breg29";
456   case DW_OP_breg30:                     return "DW_OP_breg30";
457   case DW_OP_breg31:                     return "DW_OP_breg31";
458   case DW_OP_regx:                       return "DW_OP_regx";
459   case DW_OP_fbreg:                      return "DW_OP_fbreg";
460   case DW_OP_bregx:                      return "DW_OP_bregx";
461   case DW_OP_piece:                      return "DW_OP_piece";
462   case DW_OP_deref_size:                 return "DW_OP_deref_size";
463   case DW_OP_xderef_size:                return "DW_OP_xderef_size";
464   case DW_OP_nop:                        return "DW_OP_nop";
465   case DW_OP_push_object_address:        return "DW_OP_push_object_address";
466   case DW_OP_call2:                      return "DW_OP_call2";
467   case DW_OP_call4:                      return "DW_OP_call4";
468   case DW_OP_call_ref:                   return "DW_OP_call_ref";
469   case DW_OP_form_tls_address:           return "DW_OP_form_tls_address";
470   case DW_OP_call_frame_cfa:             return "DW_OP_call_frame_cfa";
471   case DW_OP_bit_piece:                  return "DW_OP_bit_piece";
472   case DW_OP_implicit_value:             return "DW_OP_implicit_value";
473   case DW_OP_stack_value:                return "DW_OP_stack_value";
474
475   // GNU thread-local storage
476   case DW_OP_GNU_push_tls_address:       return "DW_OP_GNU_push_tls_address";
477
478   // DWARF5 Fission Proposal Op Extensions
479   case DW_OP_GNU_addr_index:             return "DW_OP_GNU_addr_index";
480   case DW_OP_GNU_const_index:            return "DW_OP_GNU_const_index";
481   }
482   return nullptr;
483 }
484
485 /// AttributeEncodingString - Return the string for the specified attribute
486 /// encoding.
487 const char *llvm::dwarf::AttributeEncodingString(unsigned Encoding) {
488   switch (Encoding) {
489   case DW_ATE_address:                   return "DW_ATE_address";
490   case DW_ATE_boolean:                   return "DW_ATE_boolean";
491   case DW_ATE_complex_float:             return "DW_ATE_complex_float";
492   case DW_ATE_float:                     return "DW_ATE_float";
493   case DW_ATE_signed:                    return "DW_ATE_signed";
494   case DW_ATE_signed_char:               return "DW_ATE_signed_char";
495   case DW_ATE_unsigned:                  return "DW_ATE_unsigned";
496   case DW_ATE_unsigned_char:             return "DW_ATE_unsigned_char";
497   case DW_ATE_imaginary_float:           return "DW_ATE_imaginary_float";
498   case DW_ATE_UTF:                       return "DW_ATE_UTF";
499   case DW_ATE_packed_decimal:            return "DW_ATE_packed_decimal";
500   case DW_ATE_numeric_string:            return "DW_ATE_numeric_string";
501   case DW_ATE_edited:                    return "DW_ATE_edited";
502   case DW_ATE_signed_fixed:              return "DW_ATE_signed_fixed";
503   case DW_ATE_unsigned_fixed:            return "DW_ATE_unsigned_fixed";
504   case DW_ATE_decimal_float:             return "DW_ATE_decimal_float";
505   case DW_ATE_lo_user:                   return "DW_ATE_lo_user";
506   case DW_ATE_hi_user:                   return "DW_ATE_hi_user";
507   }
508   return nullptr;
509 }
510
511 /// DecimalSignString - Return the string for the specified decimal sign
512 /// attribute.
513 const char *llvm::dwarf::DecimalSignString(unsigned Sign) {
514   switch (Sign) {
515   case DW_DS_unsigned:                   return "DW_DS_unsigned";
516   case DW_DS_leading_overpunch:          return "DW_DS_leading_overpunch";
517   case DW_DS_trailing_overpunch:         return "DW_DS_trailing_overpunch";
518   case DW_DS_leading_separate:           return "DW_DS_leading_separate";
519   case DW_DS_trailing_separate:          return "DW_DS_trailing_separate";
520   }
521   return nullptr;
522 }
523
524 /// EndianityString - Return the string for the specified endianity.
525 ///
526 const char *llvm::dwarf::EndianityString(unsigned Endian) {
527   switch (Endian) {
528   case DW_END_default:                   return "DW_END_default";
529   case DW_END_big:                       return "DW_END_big";
530   case DW_END_little:                    return "DW_END_little";
531   case DW_END_lo_user:                   return "DW_END_lo_user";
532   case DW_END_hi_user:                   return "DW_END_hi_user";
533   }
534   return nullptr;
535 }
536
537 /// AccessibilityString - Return the string for the specified accessibility.
538 ///
539 const char *llvm::dwarf::AccessibilityString(unsigned Access) {
540   switch (Access) {
541   // Accessibility codes
542   case DW_ACCESS_public:                 return "DW_ACCESS_public";
543   case DW_ACCESS_protected:              return "DW_ACCESS_protected";
544   case DW_ACCESS_private:                return "DW_ACCESS_private";
545   }
546   return nullptr;
547 }
548
549 /// VisibilityString - Return the string for the specified visibility.
550 ///
551 const char *llvm::dwarf::VisibilityString(unsigned Visibility) {
552   switch (Visibility) {
553   case DW_VIS_local:                     return "DW_VIS_local";
554   case DW_VIS_exported:                  return "DW_VIS_exported";
555   case DW_VIS_qualified:                 return "DW_VIS_qualified";
556   }
557   return nullptr;
558 }
559
560 /// VirtualityString - Return the string for the specified virtuality.
561 ///
562 const char *llvm::dwarf::VirtualityString(unsigned Virtuality) {
563   switch (Virtuality) {
564   case DW_VIRTUALITY_none:               return "DW_VIRTUALITY_none";
565   case DW_VIRTUALITY_virtual:            return "DW_VIRTUALITY_virtual";
566   case DW_VIRTUALITY_pure_virtual:       return "DW_VIRTUALITY_pure_virtual";
567   }
568   return nullptr;
569 }
570
571 /// LanguageString - Return the string for the specified language.
572 ///
573 const char *llvm::dwarf::LanguageString(unsigned Language) {
574   switch (Language) {
575   case DW_LANG_C89:                      return "DW_LANG_C89";
576   case DW_LANG_C:                        return "DW_LANG_C";
577   case DW_LANG_Ada83:                    return "DW_LANG_Ada83";
578   case DW_LANG_C_plus_plus:              return "DW_LANG_C_plus_plus";
579   case DW_LANG_Cobol74:                  return "DW_LANG_Cobol74";
580   case DW_LANG_Cobol85:                  return "DW_LANG_Cobol85";
581   case DW_LANG_Fortran77:                return "DW_LANG_Fortran77";
582   case DW_LANG_Fortran90:                return "DW_LANG_Fortran90";
583   case DW_LANG_Pascal83:                 return "DW_LANG_Pascal83";
584   case DW_LANG_Modula2:                  return "DW_LANG_Modula2";
585   case DW_LANG_Java:                     return "DW_LANG_Java";
586   case DW_LANG_C99:                      return "DW_LANG_C99";
587   case DW_LANG_Ada95:                    return "DW_LANG_Ada95";
588   case DW_LANG_Fortran95:                return "DW_LANG_Fortran95";
589   case DW_LANG_PLI:                      return "DW_LANG_PLI";
590   case DW_LANG_ObjC:                     return "DW_LANG_ObjC";
591   case DW_LANG_ObjC_plus_plus:           return "DW_LANG_ObjC_plus_plus";
592   case DW_LANG_UPC:                      return "DW_LANG_UPC";
593   case DW_LANG_D:                        return "DW_LANG_D";
594   case DW_LANG_Python:                   return "DW_LANG_Python";
595   case DW_LANG_OpenCL:                   return "DW_LANG_OpenCL";
596   case DW_LANG_Go:                       return "DW_LANG_Go";
597   case DW_LANG_Modula3:                  return "DW_LANG_Modula3";
598   case DW_LANG_Haskell:                  return "DW_LANG_Haskell";
599   case DW_LANG_C_plus_plus_03:           return "DW_LANG_C_plus_plus_03";
600   case DW_LANG_C_plus_plus_11:           return "DW_LANG_C_plus_plus_11";
601   case DW_LANG_OCaml:                    return "DW_LANG_OCaml";
602   case DW_LANG_lo_user:                  return "DW_LANG_lo_user";
603   case DW_LANG_Mips_Assembler:           return "DW_LANG_Mips_Assembler";
604   case DW_LANG_hi_user:                  return "DW_LANG_hi_user";
605   }
606   return nullptr;
607 }
608
609 /// CaseString - Return the string for the specified identifier case.
610 ///
611 const char *llvm::dwarf::CaseString(unsigned Case) {
612   switch (Case) {
613   case DW_ID_case_sensitive:             return "DW_ID_case_sensitive";
614   case DW_ID_up_case:                    return "DW_ID_up_case";
615   case DW_ID_down_case:                  return "DW_ID_down_case";
616   case DW_ID_case_insensitive:           return "DW_ID_case_insensitive";
617   }
618   return nullptr;
619 }
620
621 /// ConventionString - Return the string for the specified calling convention.
622 ///
623 const char *llvm::dwarf::ConventionString(unsigned Convention) {
624    switch (Convention) {
625    case DW_CC_normal:                     return "DW_CC_normal";
626    case DW_CC_program:                    return "DW_CC_program";
627    case DW_CC_nocall:                     return "DW_CC_nocall";
628    case DW_CC_lo_user:                    return "DW_CC_lo_user";
629    case DW_CC_hi_user:                    return "DW_CC_hi_user";
630   }
631   return nullptr;
632 }
633
634 /// InlineCodeString - Return the string for the specified inline code.
635 ///
636 const char *llvm::dwarf::InlineCodeString(unsigned Code) {
637   switch (Code) {
638   case DW_INL_not_inlined:               return "DW_INL_not_inlined";
639   case DW_INL_inlined:                   return "DW_INL_inlined";
640   case DW_INL_declared_not_inlined:      return "DW_INL_declared_not_inlined";
641   case DW_INL_declared_inlined:          return "DW_INL_declared_inlined";
642   }
643   return nullptr;
644 }
645
646 /// ArrayOrderString - Return the string for the specified array order.
647 ///
648 const char *llvm::dwarf::ArrayOrderString(unsigned Order) {
649   switch (Order) {
650   case DW_ORD_row_major:                 return "DW_ORD_row_major";
651   case DW_ORD_col_major:                 return "DW_ORD_col_major";
652   }
653   return nullptr;
654 }
655
656 /// DiscriminantString - Return the string for the specified discriminant
657 /// descriptor.
658 const char *llvm::dwarf::DiscriminantString(unsigned Discriminant) {
659   switch (Discriminant) {
660   case DW_DSC_label:                     return "DW_DSC_label";
661   case DW_DSC_range:                     return "DW_DSC_range";
662   }
663   return nullptr;
664 }
665
666 /// LNStandardString - Return the string for the specified line number standard.
667 ///
668 const char *llvm::dwarf::LNStandardString(unsigned Standard) {
669   switch (Standard) {
670   case DW_LNS_copy:                      return "DW_LNS_copy";
671   case DW_LNS_advance_pc:                return "DW_LNS_advance_pc";
672   case DW_LNS_advance_line:              return "DW_LNS_advance_line";
673   case DW_LNS_set_file:                  return "DW_LNS_set_file";
674   case DW_LNS_set_column:                return "DW_LNS_set_column";
675   case DW_LNS_negate_stmt:               return "DW_LNS_negate_stmt";
676   case DW_LNS_set_basic_block:           return "DW_LNS_set_basic_block";
677   case DW_LNS_const_add_pc:              return "DW_LNS_const_add_pc";
678   case DW_LNS_fixed_advance_pc:          return "DW_LNS_fixed_advance_pc";
679   case DW_LNS_set_prologue_end:          return "DW_LNS_set_prologue_end";
680   case DW_LNS_set_epilogue_begin:        return "DW_LNS_set_epilogue_begin";
681   case DW_LNS_set_isa:                   return "DW_LNS_set_isa";
682   }
683   return nullptr;
684 }
685
686 /// LNExtendedString - Return the string for the specified line number extended
687 /// opcode encodings.
688 const char *llvm::dwarf::LNExtendedString(unsigned Encoding) {
689   switch (Encoding) {
690   // Line Number Extended Opcode Encodings
691   case DW_LNE_end_sequence:              return "DW_LNE_end_sequence";
692   case DW_LNE_set_address:               return "DW_LNE_set_address";
693   case DW_LNE_define_file:               return "DW_LNE_define_file";
694   case DW_LNE_set_discriminator:         return "DW_LNE_set_discriminator";
695   case DW_LNE_lo_user:                   return "DW_LNE_lo_user";
696   case DW_LNE_hi_user:                   return "DW_LNE_hi_user";
697   }
698   return nullptr;
699 }
700
701 /// MacinfoString - Return the string for the specified macinfo type encodings.
702 ///
703 const char *llvm::dwarf::MacinfoString(unsigned Encoding) {
704   switch (Encoding) {
705   // Macinfo Type Encodings
706   case DW_MACINFO_define:                return "DW_MACINFO_define";
707   case DW_MACINFO_undef:                 return "DW_MACINFO_undef";
708   case DW_MACINFO_start_file:            return "DW_MACINFO_start_file";
709   case DW_MACINFO_end_file:              return "DW_MACINFO_end_file";
710   case DW_MACINFO_vendor_ext:            return "DW_MACINFO_vendor_ext";
711   }
712   return nullptr;
713 }
714
715 /// CallFrameString - Return the string for the specified call frame instruction
716 /// encodings.
717 const char *llvm::dwarf::CallFrameString(unsigned Encoding) {
718   switch (Encoding) {
719   case DW_CFA_nop:                       return "DW_CFA_nop";
720   case DW_CFA_advance_loc:               return "DW_CFA_advance_loc";
721   case DW_CFA_offset:                    return "DW_CFA_offset";
722   case DW_CFA_restore:                   return "DW_CFA_restore";
723   case DW_CFA_set_loc:                   return "DW_CFA_set_loc";
724   case DW_CFA_advance_loc1:              return "DW_CFA_advance_loc1";
725   case DW_CFA_advance_loc2:              return "DW_CFA_advance_loc2";
726   case DW_CFA_advance_loc4:              return "DW_CFA_advance_loc4";
727   case DW_CFA_offset_extended:           return "DW_CFA_offset_extended";
728   case DW_CFA_restore_extended:          return "DW_CFA_restore_extended";
729   case DW_CFA_undefined:                 return "DW_CFA_undefined";
730   case DW_CFA_same_value:                return "DW_CFA_same_value";
731   case DW_CFA_register:                  return "DW_CFA_register";
732   case DW_CFA_remember_state:            return "DW_CFA_remember_state";
733   case DW_CFA_restore_state:             return "DW_CFA_restore_state";
734   case DW_CFA_def_cfa:                   return "DW_CFA_def_cfa";
735   case DW_CFA_def_cfa_register:          return "DW_CFA_def_cfa_register";
736   case DW_CFA_def_cfa_offset:            return "DW_CFA_def_cfa_offset";
737   case DW_CFA_def_cfa_expression:        return "DW_CFA_def_cfa_expression";
738   case DW_CFA_expression:                return "DW_CFA_expression";
739   case DW_CFA_offset_extended_sf:        return "DW_CFA_offset_extended_sf";
740   case DW_CFA_def_cfa_sf:                return "DW_CFA_def_cfa_sf";
741   case DW_CFA_def_cfa_offset_sf:         return "DW_CFA_def_cfa_offset_sf";
742   case DW_CFA_val_offset:                return "DW_CFA_val_offset";
743   case DW_CFA_val_offset_sf:             return "DW_CFA_val_offset_sf";
744   case DW_CFA_val_expression:            return "DW_CFA_val_expression";
745   case DW_CFA_MIPS_advance_loc8:         return "DW_CFA_MIPS_advance_loc8";
746   case DW_CFA_GNU_window_save:           return "DW_CFA_GNU_window_save";
747   case DW_CFA_GNU_args_size:             return "DW_CFA_GNU_args_size";
748   case DW_CFA_lo_user:                   return "DW_CFA_lo_user";
749   case DW_CFA_hi_user:                   return "DW_CFA_hi_user";
750   }
751   return nullptr;
752 }
753
754 const char *llvm::dwarf::AtomTypeString(unsigned AT) {
755   switch (AT) {
756   case dwarf::DW_ATOM_null:
757     return "DW_ATOM_null";
758   case dwarf::DW_ATOM_die_offset:
759     return "DW_ATOM_die_offset";
760   case DW_ATOM_cu_offset:
761     return "DW_ATOM_cu_offset";
762   case DW_ATOM_die_tag:
763     return "DW_ATOM_die_tag";
764   case DW_ATOM_type_flags:
765     return "DW_ATOM_type_flags";
766   }
767   return nullptr;
768 }
769
770 const char *llvm::dwarf::GDBIndexEntryKindString(GDBIndexEntryKind Kind) {
771   switch (Kind) {
772   case GIEK_NONE:
773     return "NONE";
774   case GIEK_TYPE:
775     return "TYPE";
776   case GIEK_VARIABLE:
777     return "VARIABLE";
778   case GIEK_FUNCTION:
779     return "FUNCTION";
780   case GIEK_OTHER:
781     return "OTHER";
782   case GIEK_UNUSED5:
783     return "UNUSED5";
784   case GIEK_UNUSED6:
785     return "UNUSED6";
786   case GIEK_UNUSED7:
787     return "UNUSED7";
788   }
789   llvm_unreachable("Unknown GDBIndexEntryKind value");
790 }
791
792 const char *llvm::dwarf::GDBIndexEntryLinkageString(GDBIndexEntryLinkage Linkage) {
793   switch (Linkage) {
794   case GIEL_EXTERNAL:
795     return "EXTERNAL";
796   case GIEL_STATIC:
797     return "STATIC";
798   }
799   llvm_unreachable("Unknown GDBIndexEntryLinkage value");
800 }
801
802 const char *llvm::dwarf::AttributeValueString(uint16_t Attr, unsigned Val) {
803   switch (Attr) {
804   case DW_AT_accessibility:
805     return AccessibilityString(Val);
806   case DW_AT_virtuality:
807     return VirtualityString(Val);
808   case DW_AT_language:
809     return LanguageString(Val);
810   case DW_AT_encoding:
811     return AttributeEncodingString(Val);
812   case DW_AT_decimal_sign:
813     return DecimalSignString(Val);
814   case DW_AT_endianity:
815     return EndianityString(Val);
816   case DW_AT_visibility:
817     return VisibilityString(Val);
818   case DW_AT_identifier_case:
819     return CaseString(Val);
820   case DW_AT_calling_convention:
821     return ConventionString(Val);
822   case DW_AT_inline:
823     return InlineCodeString(Val);
824   case DW_AT_ordering:
825     return ArrayOrderString(Val);
826   case DW_AT_discr_value:
827     return DiscriminantString(Val);
828   }
829
830   return nullptr;
831 }