Stowage/cpython
2
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-12-31 04:23:37 +00:00
Code Issues Projects Releases Packages Wiki Activity

GH-95245: Store object values and dict pointers in single tagged pointer. (GH-95278)

Browse source
This commit is contained in:
Mark Shannon 2022-08-01 14:34:54 +01:00 • committed by GitHub
parent fb75d015f4
commit de388c0a7b
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
10 changed files with 271 additions and 203 deletions
Download patch file Download diff file Expand all files Collapse all files

12
Python/specialize.c
View file

@ -635,9 +635,8 @@ specialize_dict_access(
return 0;
}
_PyAttrCache *cache = (_PyAttrCache *)(instr + 1);
PyObject **dictptr = _PyObject_ManagedDictPointer(owner);
PyDictObject *dict = (PyDictObject *)*dictptr;
if (dict == NULL) {
PyDictOrValues dorv = *_PyObject_DictOrValuesPointer(owner);
if (_PyDictOrValues_IsValues(dorv)) {
// Virtual dictionary
PyDictKeysObject *keys = ((PyHeapTypeObject *)type)->ht_cached_keys;
assert(PyUnicode_CheckExact(name));
@ -652,7 +651,8 @@ specialize_dict_access(
_Py_SET_OPCODE(*instr, values_op);
}
else {
if (!PyDict_CheckExact(dict)) {
PyDictObject *dict = (PyDictObject *)_PyDictOrValues_GetDict(dorv);
if (dict == NULL || !PyDict_CheckExact(dict)) {
SPECIALIZATION_FAIL(base_op, SPEC_FAIL_NO_DICT);
return 0;
}
@ -995,9 +995,9 @@ PyObject *descr, DescriptorClassification kind)
ObjectDictKind dictkind;
PyDictKeysObject *keys;
if (owner_cls->tp_flags & Py_TPFLAGS_MANAGED_DICT) {
PyObject *dict = *_PyObject_ManagedDictPointer(owner);
PyDictOrValues dorv = *_PyObject_DictOrValuesPointer(owner);
keys = ((PyHeapTypeObject *)owner_cls)->ht_cached_keys;
if (dict == NULL) {
if (_PyDictOrValues_IsValues(dorv)) {
dictkind = MANAGED_VALUES;
}
else {