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bpo-44826: Specialize STORE_ATTR (GH-27590)

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* Generalize cache names for LOAD_ATTR to allow store and delete specializations.

* Factor out specialization of attribute dictionary access.

* Specialize STORE_ATTR.
This commit is contained in:
Mark Shannon 2021-08-09 10:40:21 +01:00 • committed by GitHub
parent b854557b49
commit ac75f6bdd4
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9 changed files with 345 additions and 93 deletions
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5
Include/internal/pycore_code.h
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@ -23,7 +23,7 @@ typedef struct {
typedef struct {
uint32_t tp_version;
uint32_t dk_version_or_hint;
} _PyLoadAttrCache;
} _PyAttrCache;
typedef struct {
uint32_t module_keys_version;
@ -43,7 +43,7 @@ typedef struct {
typedef union {
_PyEntryZero zero;
_PyAdaptiveEntry adaptive;
_PyLoadAttrCache load_attr;
_PyAttrCache attr;
_PyLoadGlobalCache load_global;
} SpecializedCacheEntry;
@ -297,6 +297,7 @@ cache_backoff(_PyAdaptiveEntry *entry) {
/* Specialization functions */
int _Py_Specialize_LoadAttr(PyObject *owner, _Py_CODEUNIT *instr, PyObject *name, SpecializedCacheEntry *cache);
int _Py_Specialize_StoreAttr(PyObject *owner, _Py_CODEUNIT *instr, PyObject *name, SpecializedCacheEntry *cache);
int _Py_Specialize_LoadGlobal(PyObject *globals, PyObject *builtins, _Py_CODEUNIT *instr, PyObject *name, SpecializedCacheEntry *cache);
int _Py_Specialize_BinarySubscr(PyObject *sub, PyObject *container, _Py_CODEUNIT *instr);