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Diffstat (limited to 'src/amd/registers/regdb.py')
| -rw-r--r-- | src/amd/registers/regdb.py | 901 |
1 files changed, 901 insertions, 0 deletions
diff --git a/src/amd/registers/regdb.py b/src/amd/registers/regdb.py new file mode 100644 index 00000000000..fc9a0a2788e --- /dev/null +++ b/src/amd/registers/regdb.py @@ -0,0 +1,901 @@ +# +# Copyright 2017-2019 Advanced Micro Devices, Inc. +# +# Permission is hereby granted, free of charge, to any person obtaining a +# copy of this software and associated documentation files (the "Software"), +# to deal in the Software without restriction, including without limitation +# on the rights to use, copy, modify, merge, publish, distribute, sub +# license, and/or sell copies of the Software, and to permit persons to whom +# the Software is furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice (including the next +# paragraph) shall be included in all copies or substantial portions of the +# Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL +# THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, +# DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +# OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +# USE OR OTHER DEALINGS IN THE SOFTWARE. +# +""" +Python package containing common tools for manipulating register JSON. +""" + +from __future__ import absolute_import, division, print_function, unicode_literals + +import itertools +import json +import re +import sys + +from collections import defaultdict +from contextlib import contextmanager + +class UnionFind(object): + """ + Simplistic implementation of a union-find data structure that also keeps + track of the sets that have been unified. + + - add: add an element to the implied global set of elements + - union: unify the sets containing the two given elements + - find: return the representative element of the set containing the + given element + - get_set: get the set containing the given element + - sets: iterate over all sets (the sets form a partition of the set of all + elements that have ever been added) + """ + def __init__(self): + self.d = {} + + def add(self, k): + if k not in self.d: + self.d[k] = set([k]) + + def union(self, k1, k2): + k1 = self.find(k1) + k2 = self.find(k2) + if k1 == k2: + return + if len(k1) < len(k2): + k1, k2 = k2, k1 + self.d[k1].update(self.d[k2]) + self.d[k2] = (k1,) + + def find(self, k): + e = self.d[k] + if isinstance(e, set): + return k + assert isinstance(e, tuple) + r = self.find(e[0]) + self.d[k] = (r,) + return r + + def get_set(self, k): + k = self.find(k) + assert isinstance(self.d[k], set) + return self.d[k] + + def sets(self): + for v in self.d.values(): + if isinstance(v, set): + yield v + + +class Object(object): + """ + Convenience helper class that essentially acts as a dictionary for convenient + conversion from and to JSON while allowing the use of .field notation + instead of subscript notation for member access. + """ + def __init__(self, **kwargs): + for k, v in kwargs.items(): + setattr(self, k, v) + + def update(self, **kwargs): + for key, value in kwargs.items(): + setattr(self, key, value) + return self + + def __str__(self): + return 'Object(' + ', '.join( + '{k}={v}'.format(**locals()) for k, v, in self.__dict__.items() + ) + ')' + + @staticmethod + def from_json(json, keys=None): + if isinstance(json, list): + return [Object.from_json(v) for v in json] + elif isinstance(json, dict): + obj = Object() + for k, v in json.items(): + if keys is not None and k in keys: + v = keys[k](v) + else: + v = Object.from_json(v) + setattr(obj, k, v) + return obj + else: + return json + + @staticmethod + def to_json(obj): + if isinstance(obj, Object): + return dict((k, Object.to_json(v)) for k, v in obj.__dict__.items()) + elif isinstance(obj, dict): + return dict((k, Object.to_json(v)) for k, v in obj.items()) + elif isinstance(obj, list): + return [Object.to_json(v) for v in obj] + else: + return obj + +class MergeError(Exception): + def __init__(self, msg): + super(MergeError, self).__init__(msg) + +class RegisterDatabaseError(Exception): + def __init__(self, msg): + super(RegisterDatabaseError, self).__init__(msg) + +@contextmanager +def merge_scope(name): + """ + Wrap a merge handling function in a "scope" whose name will be added when + propagating MergeErrors. + """ + try: + yield + except Exception as e: + raise MergeError('{name}: {e}'.format(**locals())) + +def merge_dicts(dicts, keys=None, values=None): + """ + Generic dictionary merging function. + + dicts -- list of (origin, dictionary) pairs to merge + keys -- optional dictionary to provide a merge-strategy per key; + the merge strategy is a callable which will receive a list of + (origin, value) pairs + value -- optional function which provides a merge-strategy for values; + the merge strategy is a callable which will receive the name of + the key and a list of (origin, value) pairs + + The default strategy is to allow merging keys if all origin dictionaries + that contain the key have the same value for it. + """ + ks = set() + for _, d in dicts: + ks.update(d.keys()) + + result = {} + for k in ks: + vs = [(o, d[k]) for o, d in dicts if k in d] + with merge_scope('Key {k}'.format(**locals())): + if keys is not None and k in keys: + result[k] = keys[k](vs) + elif values is not None: + result[k] = values(k, vs) + else: + base_origin, base = vs[0] + for other_origin, other in vs[1:]: + if base != other: + raise MergeError('{base} (from {base_origin}) != {other} (from {other_origin})'.format(**locals())) + result[k] = base + return result + +def merge_objects(objects, keys=None): + """ + Like merge_dicts, but applied to instances of Object. + """ + return Object(**merge_dicts([(origin, obj.__dict__) for origin, obj in objects], keys=keys)) + +class RegisterDatabase(object): + """ + A register database containing: + + - enums: these are lists of named values that can occur in a register field + - register types: description of a register type or template as a list of + fields + - register mappings: named and typed registers mapped at locations in an + address space + """ + def __init__(self): + self.__enums = {} + self.__register_types = {} + self.__register_mappings = [] + self.__regmap_by_addr = None + self.__chips = None + + def __post_init(self): + """ + Perform some basic canonicalization: + - enum entries are sorted by value + - register type fields are sorted by starting bit + - __register_mappings is sorted by name + - the chips field of register mappings is sorted + + Lazily computes the set of all chips mentioned by register mappings. + """ + if self.__regmap_by_addr is not None: + return + + for enum in self.__enums.values(): + enum.entries.sort(key=lambda entry: entry.value) + + for regtype in self.__register_types.values(): + regtype.fields.sort(key=lambda field: field.bits[0]) + + self.__regmap_by_addr = defaultdict(list) + self.__chips = set() + + # Merge regiseter mappings using sort order and garbage collect enums + # and register types. + old_register_mappings = self.__register_mappings + old_register_mappings.sort(key=lambda regmap: regmap.name) + + self.__register_mappings = [] + for regmap in old_register_mappings: + addr = (regmap.map.to, regmap.map.at) + chips = set(getattr(regmap, 'chips', ['undef'])) + type_ref = getattr(regmap, 'type_ref', None) + + self.__chips.update(chips) + + merged = False + for other in reversed(self.__register_mappings): + if other.name != regmap.name: + break + + other_addr = (other.map.to, other.map.at) + other_chips = getattr(other, 'chips', ['undef']) + other_type_ref = getattr(other, 'type_ref', None) + + if addr == other_addr and\ + (type_ref is None or other_type_ref is None or type_ref == other_type_ref): + other.chips = sorted(list(chips.union(other_chips))) + if type_ref is not None: + other.type_ref = type_ref + merged = True + break + + if merged: + continue + + addrmappings = self.__regmap_by_addr[addr] + + for other in addrmappings: + other_type_ref = getattr(other, 'type_ref', None) + other_chips = getattr(other, 'chips', ['undef']) + if type_ref is not None and other_type_ref is not None and \ + type_ref != other_type_ref and chips.intersection(other_chips): + raise RegisterDatabaseError( + 'Registers {0} and {1} overlap and have conflicting types'.format( + other.name, regmap.name)) + + addrmappings.append(regmap) + self.__register_mappings.append(regmap) + + def garbage_collect(self): + """ + Remove unreferenced enums and register types. + """ + old_enums = self.__enums + old_register_types = self.__register_types + + self.__enums = {} + self.__register_types = {} + for regmap in self.__register_mappings: + if hasattr(regmap, 'type_ref') and regmap.type_ref not in self.__register_types: + regtype = old_register_types[regmap.type_ref] + self.__register_types[regmap.type_ref] = regtype + for field in regtype.fields: + if hasattr(field, 'enum_ref') and field.enum_ref not in self.__enums: + self.__enums[field.enum_ref] = old_enums[field.enum_ref] + + def __validate_register_type(self, regtype): + for field in regtype.fields: + if hasattr(field, 'enum_ref') and field.enum_ref not in self.__enums: + raise RegisterDatabaseError( + 'Register type field {0} has unknown enum_ref {1}'.format( + field.name, field.enum_ref)) + + def __validate_register_mapping(self, regmap): + if hasattr(regmap, 'type_ref') and regmap.type_ref not in self.__register_types: + raise RegisterDatabaseError( + 'Register mapping {0} has unknown type_ref {1}'.format( + regmap.name, regmap.type_ref)) + + def __validate(self): + for regtype in self.__register_types.values(): + self.__validate_register_type(regtype) + for regmap in self.__register_mappings: + self.__validate_register_mapping(regmap) + + @staticmethod + def enum_key(enum): + """ + Return a key that uniquely describes the signature of the given + enum (assuming that it has been canonicalized). Two enums with the + same key can be merged. + """ + return ''.join( + ':{0}:{1}'.format(entry.name, entry.value) + for entry in enum.entries + ) + + def add_enum(self, name, enum): + if name in self.__enums: + raise RegisterDatabaseError('Duplicate enum ' + name) + self.__enums[name] = enum + + @staticmethod + def __merge_enums(enums, union=False): + def merge_entries(entries_lists): + values = defaultdict(list) + for origin, enum in entries_lists: + for entry in enum: + values[entry.value].append((origin, entry)) + + if not union: + if any(len(entries) != len(enums) for entries in values.values()): + raise RegisterDatabaseError( + 'Attempting to merge enums with different values') + + return [ + merge_objects(entries) + for entries in values.values() + ] + + return merge_objects( + enums, + keys={ + 'entries': merge_entries, + } + ) + + def merge_enums(self, names, newname, union=False): + """ + Given a list of enum names, merge them all into one with a new name and + update all references. + """ + if newname not in names and newname in self.__enums: + raise RegisterDatabaseError('Enum {0} already exists'.format(newname)) + + newenum = self.__merge_enums( + [(name, self.__enums[name]) for name in names], + union=union + ) + + for name in names: + del self.__enums[name] + self.__enums[newname] = newenum + + for regtype in self.__register_types.values(): + for field in regtype.fields: + if getattr(field, 'enum_ref', None) in names: + field.enum_ref = newname + + self.__regmap_by_addr = None + + def add_register_type(self, name, regtype): + if regtype in self.__register_types: + raise RegisterDatabaseError('Duplicate register type ' + name) + self.__register_types[name] = regtype + self.__validate_register_type(regtype) + + def register_type(self, name): + self.__post_init() + return self.__register_types[name] + + @staticmethod + def __merge_register_types(regtypes, union=False, field_keys={}): + def merge_fields(fields_lists): + fields = defaultdict(list) + for origin, fields_list in fields_lists: + for field in fields_list: + fields[field.bits[0]].append((origin, field)) + + if not union: + if any(len(entries) != len(regtypes) for entries in fields.values()): + raise RegisterDatabaseError( + 'Attempting to merge register types with different fields') + + return [ + merge_objects(field, keys=field_keys) + for field in fields.values() + ] + + with merge_scope('Register types {0}'.format(', '.join(name for name, _ in regtypes))): + return merge_objects( + regtypes, + keys={ + 'fields': merge_fields, + } + ) + + def merge_register_types(self, names, newname, union=False): + """ + Given a list of register type names, merge them all into one with a + new name and update all references. + """ + if newname not in names and newname in self.__register_types: + raise RegisterDatabaseError('Register type {0} already exists'.format(newname)) + + newregtype = self.__merge_register_types( + [(name, self.__register_types[name]) for name in names], + union=union + ) + + for name in names: + del self.__register_types[name] + self.__register_types[newname] = newregtype + + for regmap in self.__register_mappings: + if getattr(regmap, 'type_ref', None) in names: + regmap.type_ref = newname + + self.__regmap_by_addr = None + + def add_register_mapping(self, regmap): + self.__regmap_by_addr = None + self.__register_mappings.append(regmap) + self.__validate_register_mapping(regmap) + + def remove_register_mappings(self, regmaps_to_remove): + self.__post_init() + + regmaps_to_remove = set(regmaps_to_remove) + + regmaps = self.__register_mappings + self.__register_mappings = [] + for regmap in regmaps: + if regmap not in regmaps_to_remove: + self.__register_mappings.append(regmap) + + self.__regmap_by_addr = None + + def enum(self, name): + """ + Return the enum of the given name, if any. + """ + self.__post_init() + return self.__enums.get(name, None) + + def enums(self): + """ + Yields all (name, enum) pairs. + """ + self.__post_init() + for name, enum in self.__enums.items(): + yield (name, enum) + + def fields(self): + """ + Yields all (register_type, fields) pairs. + """ + self.__post_init() + for regtype in self.__register_types.values(): + for field in regtype.fields: + yield (regtype, field) + + def register_types(self): + """ + Yields all (name, register_type) pairs. + """ + self.__post_init() + for name, regtype in self.__register_types.items(): + yield (name, regtype) + + def register_mappings_by_name(self, name): + """ + Return a list of register mappings with the given name. + """ + self.__post_init() + + begin = 0 + end = len(self.__register_mappings) + while begin < end: + middle = (begin + end) // 2 + if self.__register_mappings[middle].name < name: + begin = middle + 1 + elif name < self.__register_mappings[middle].name: + end = middle + else: + break + + if begin >= end: + return [] + + # We now have begin <= mid < end with begin.name <= name, mid.name == name, name < end.name + # Narrow down begin and end + hi = middle + while begin < hi: + mid = (begin + hi) // 2 + if self.__register_mappings[mid].name < name: + begin = mid + 1 + else: + hi = mid + + lo = middle + 1 + while lo < end: + mid = (lo + end) // 2 + if self.__register_mappings[mid].name == name: + lo = mid + 1 + else: + end = mid + + return self.__register_mappings[begin:end] + + def register_mappings(self): + """ + Yields all register mappings. + """ + self.__post_init() + for regmap in self.__register_mappings: + yield regmap + + def chips(self): + """ + Yields all chips. + """ + self.__post_init() + return iter(self.__chips) + + def merge_chips(self, chips, newchip): + """ + Merge register mappings of the given chips into a single chip of the + given name. Recursively merges register types and enums when appropriate. + """ + self.__post_init() + + chips = set(chips) + + regtypes_merge = UnionFind() + enums_merge = UnionFind() + + # Walk register mappings to find register types that should be merged. + for idx, regmap in itertools.islice(enumerate(self.__register_mappings), 1, None): + if not hasattr(regmap, 'type_ref'): + continue + if chips.isdisjoint(regmap.chips): + continue + + for other in self.__register_mappings[idx-1::-1]: + if regmap.name != other.name: + break + if chips.isdisjoint(other.chips): + continue + if regmap.map.to != other.map.to or regmap.map.at != other.map.at: + raise RegisterDatabaseError( + 'Attempting to merge chips with incompatible addresses of {0}'.format(regmap.name)) + if not hasattr(regmap, 'type_ref'): + continue + + if regmap.type_ref != other.type_ref: + regtypes_merge.add(regmap.type_ref) + regtypes_merge.add(other.type_ref) + regtypes_merge.union(regmap.type_ref, other.type_ref) + + # Walk over regtype sets that are to be merged and find enums that + # should be merged. + for type_refs in regtypes_merge.sets(): + fields_merge = defaultdict(set) + for type_ref in type_refs: + regtype = self.__register_types[type_ref] + for field in regtype.fields: + if hasattr(field, 'enum_ref'): + fields_merge[field.name].add(field.enum_ref) + + for enum_refs in fields_merge.values(): + if len(enum_refs) > 1: + enum_refs = list(enum_refs) + enums_merge.add(enum_refs[0]) + for enum_ref in enum_refs[1:]: + enums_merge.add(enum_ref) + enums_merge.union(enum_ref, enum_refs[0]) + + # Merge all mergeable enum sets + remap_enum_refs = {} + for enum_refs in enums_merge.sets(): + enum_refs = sorted(enum_refs) + newname = enum_refs[0] + '_' + newchip + i = 0 + while newname in self.__enums: + newname = enum_refs[0] + '_' + newchip + str(i) + i += 1 + + for enum_ref in enum_refs: + remap_enum_refs[enum_ref] = newname + + # Don't use self.merge_enums, because we don't want to automatically + # update _all_ references to the merged enums (some may be from + # register types that aren't going to be merged). + self.add_enum(newname, self.__merge_enums( + [(enum_ref, self.__enums[enum_ref]) for enum_ref in enum_refs], + union=True + )) + + # Merge all mergeable type refs + remap_type_refs = {} + for type_refs in regtypes_merge.sets(): + type_refs = sorted(type_refs) + newname = type_refs[0] + '_' + newchip + i = 0 + while newname in self.__enums: + newname = type_refs[0] + '_' + newchip + str(i) + i += 1 + + updated_regtypes = [] + for type_ref in type_refs: + remap_type_refs[type_ref] = newname + + regtype = Object.from_json(Object.to_json(self.__register_types[type_ref])) + for field in regtype.fields: + if hasattr(field, 'enum_ref'): + field.enum_ref = remap_enum_refs.get(enum_ref, enum_ref) + + updated_regtypes.append(regtype) + + def merge_enum_refs(enum_refs): + enum_refs = set( + remap_enum_refs.get(enum_ref, enum_ref) + for origin, enum_ref in enum_refs + ) + assert len(enum_refs) == 1 # should be ensured by how we determine the enums to be merged + return enum_refs.pop() + + self.add_register_type(newname, self.__merge_register_types( + [(type_ref, self.__register_types[type_ref]) for type_ref in type_refs], + field_keys={ + 'enum_ref': merge_enum_refs, + }, + union=True + )) + + # Merge register mappings + register_mappings = self.__register_mappings + self.__register_mappings = [] + + regmap_accum = None + for regmap in register_mappings: + if regmap_accum and regmap.name != regmap_accum.name: + regmap_accum.chips = [newchip] + self.__register_mappings.append(regmap_accum) + regmap_accum = None + + joining_chips = chips.intersection(regmap.chips) + if not joining_chips: + self.__register_mappings.append(regmap) + continue + remaining_chips = set(regmap.chips).difference(chips) + + type_ref = getattr(regmap, 'type_ref', None) + if type_ref is None: + regmap.chips = sorted(remaining_chips.union([newchip])) + self.__register_mappings.append(regmap) + continue + + type_ref = remap_type_refs.get(type_ref, type_ref) + if remaining_chips: + regmap.chips = sorted(remaining_chips) + self.__register_mappings.append(regmap) + if not regmap_accum: + regmap = Object.from_json(Object.to_json(regmap)) + if type_ref is not None: + regmap.type_ref = type_ref + + if not regmap_accum: + regmap_accum = regmap + else: + if not hasattr(regmap_accum.type_ref, 'type_ref'): + if type_ref is not None: + regmap_accum.type_ref = type_ref + else: + assert type_ref is None or type_ref == regmap_accum.type_ref + if regmap_accum: + self.__register_mappings.append(regmap_accum) + + def update(self, other): + """ + Add the contents of the other database to self. + + Doesn't de-duplicate entries. + """ + self.__post_init() + other.__post_init() + + enum_remap = {} + regtype_remap = {} + + for regmap in other.__register_mappings: + regmap = Object.from_json(Object.to_json(regmap)) + + type_ref = getattr(regmap, 'type_ref', None) + if type_ref is not None and type_ref not in regtype_remap: + regtype = Object.from_json(Object.to_json(other.__register_types[type_ref])) + + chips = getattr(regmap, 'chips', []) + suffix = '_' + chips[0] if chips else '' + + for field in regtype.fields: + enum_ref = getattr(field, 'enum_ref', None) + if enum_ref is not None and enum_ref not in enum_remap: + enum = Object.from_json(Object.to_json(other.__enums[enum_ref])) + + remapped = enum_ref + suffix if enum_ref in self.__enums else enum_ref + i = 0 + while remapped in self.__enums: + remapped = enum_ref + suffix + str(i) + i += 1 + self.add_enum(remapped, enum) + enum_remap[enum_ref] = remapped + + if enum_ref is not None: + field.enum_ref = enum_remap[enum_ref] + + remapped = type_ref + suffix if type_ref in self.__register_types else type_ref + i = 0 + while remapped in self.__register_types: + remapped = type_ref + suffix + str(i) + i += 1 + self.add_register_type(remapped, regtype) + regtype_remap[type_ref] = remapped + + if type_ref is not None: + regmap.type_ref = regtype_remap[type_ref] + + self.add_register_mapping(regmap) + + def to_json(self): + self.__post_init() + return { + 'enums': Object.to_json(self.__enums), + 'register_types': Object.to_json(self.__register_types), + 'register_mappings': Object.to_json(self.__register_mappings), + } + + def encode_json_pretty(self): + """ + Use a custom JSON encoder which pretty prints, but keeps inner structures compact + """ + # Since the JSON module isn't very extensible, this ends up being + # really hacky. + obj = self.to_json() + + replacements = [] + def placeholder(s): + placeholder = "JSON-{key}-NOSJ".format(key=len(replacements)) + replacements.append(json.dumps(s, sort_keys=True)) + return placeholder + + # Pre-create non-indented encodings for inner objects + for enum in obj['enums'].values(): + enum['entries'] = [ + placeholder(entry) + for entry in enum['entries'] + ] + + for regtype in obj['register_types'].values(): + regtype['fields'] = [ + placeholder(field) + for field in regtype['fields'] + ] + + for regmap in obj['register_mappings']: + regmap['map'] = placeholder(regmap['map']) + if 'chips' in regmap: + regmap['chips'] = placeholder(regmap['chips']) + + # Now create the 'outer' encoding with indentation and search-and-replace + # placeholders + result = json.dumps(obj, indent=1, sort_keys=True) + + result = re.sub( + '"JSON-([0-9]+)-NOSJ"', + lambda m: replacements[int(m.group(1))], + result + ) + + return result + + @staticmethod + def from_json(json): + db = RegisterDatabase() + + db.__enums = dict((k, Object.from_json(v)) for k, v in json['enums'].items()) + if 'register_types' in json: + db.__register_types = dict( + (k, Object.from_json(v)) + for k, v in json['register_types'].items() + ) + if 'register_mappings' in json: + db.__register_mappings = Object.from_json(json['register_mappings']) + + # Old format + if 'registers' in json: + for reg in json['registers']: + type_ref = None + if 'fields' in reg and reg['fields']: + type_ref = reg['names'][0] + db.add_register_type(type_ref, Object( + fields=Object.from_json(reg['fields']) + )) + + for name in reg['names']: + regmap = Object( + name=name, + map=Object.from_json(reg['map']) + ) + if type_ref is not None: + regmap.type_ref = type_ref + db.add_register_mapping(regmap) + + db.__post_init() + return db + +def deduplicate_enums(regdb): + """ + Find enums that have the exact same entries and merge them. + """ + buckets = defaultdict(list) + for name, enum in regdb.enums(): + buckets[RegisterDatabase.enum_key(enum)].append(name) + + for bucket in buckets.values(): + if len(bucket) > 1: + regdb.merge_enums(bucket, bucket[0]) + +def deduplicate_register_types(regdb): + """ + Find register types with the exact same fields (identified by name and + bit range) and merge them. + + However, register types *aren't* merged if they have different enums for + the same field (as an exception, if one of them has an enum and the other + one doesn't, we assume that one is simply missing a bit of information and + merge the register types). + """ + buckets = defaultdict(list) + for name, regtype in regdb.register_types(): + key = ''.join( + ':{0}:{1}:{2}:'.format( + field.name, field.bits[0], field.bits[1], + ) + for field in regtype.fields + ) + buckets[key].append((name, regtype.fields)) + + for bucket in buckets.values(): + # Register types in the same bucket have the same fields in the same + # places, but they may have different enum_refs. Allow merging when + # one has an enum_ref and another doesn't, but don't merge if they + # have enum_refs that differ. + bucket_enum_refs = [ + [getattr(field, 'enum_ref', None) for field in fields] + for name, fields in bucket + ] + while bucket: + regtypes = [bucket[0][0]] + enum_refs = bucket_enum_refs[0] + del bucket[0] + del bucket_enum_refs[0] + + idx = 0 + while idx < len(bucket): + if all([ + not lhs or not rhs or lhs == rhs + for lhs, rhs in zip(enum_refs, bucket_enum_refs[idx]) + ]): + regtypes.append(bucket[idx][0]) + enum_refs = [lhs or rhs for lhs, rhs in zip(enum_refs, bucket_enum_refs[idx])] + del bucket[idx] + del bucket_enum_refs[idx] + else: + idx += 1 + + if len(regtypes) > 1: + regdb.merge_register_types(regtypes, regtypes[0]) + +# kate: space-indent on; indent-width 4; replace-tabs on; |