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gh-131525: Cache the result of tuple_hash (#131529)

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* gh-131525: Cache the result of tuple_hash

* Fix debug builds

* Add blurb

* Fix formatting

* Pre-compute empty tuple singleton

* Mostly set the cache within tuple_alloc

* Fixes for TSAN

* Pre-compute empty tuple singleton

* Fix for 32-bit platforms

* Assert that op != NULL in _PyTuple_RESET_HASH_CACHE

* Use FT_ATOMIC_STORE_SSIZE_RELAXED macro

* Update Include/internal/pycore_tuple.h

Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>

* Fix alignment

* atomic load

* Update Objects/tupleobject.c

Co-authored-by: Chris Eibl <138194463+chris-eibl@users.noreply.github.com>

---------

Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Chris Eibl <138194463+chris-eibl@users.noreply.github.com>
This commit is contained in:
Michael Droettboom 2025-03-27 09:57:06 -04:00 • committed by GitHub
parent cf5e438c02
commit 8614f86b71
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
102 changed files with 1218 additions and 183 deletions
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16
Modules/clinic/binascii.c.h generated
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@ -61,9 +61,11 @@ binascii_b2a_uu(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObj
static struct {
PyGC_Head _this_is_not_used;
PyObject_VAR_HEAD
Py_hash_t ob_hash;
PyObject *ob_item[NUM_KEYWORDS];
} _kwtuple = {
.ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
.ob_hash = -1,
.ob_item = { &_Py_ID(backtick), },
};
#undef NUM_KEYWORDS
@ -138,9 +140,11 @@ binascii_a2b_base64(PyObject *module, PyObject *const *args, Py_ssize_t nargs, P
static struct {
PyGC_Head _this_is_not_used;
PyObject_VAR_HEAD
Py_hash_t ob_hash;
PyObject *ob_item[NUM_KEYWORDS];
} _kwtuple = {
.ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
.ob_hash = -1,
.ob_item = { &_Py_ID(strict_mode), },
};
#undef NUM_KEYWORDS
@ -210,9 +214,11 @@ binascii_b2a_base64(PyObject *module, PyObject *const *args, Py_ssize_t nargs, P
static struct {
PyGC_Head _this_is_not_used;
PyObject_VAR_HEAD
Py_hash_t ob_hash;
PyObject *ob_item[NUM_KEYWORDS];
} _kwtuple = {
.ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
.ob_hash = -1,
.ob_item = { &_Py_ID(newline), },
};
#undef NUM_KEYWORDS
@ -390,9 +396,11 @@ binascii_b2a_hex(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyOb
static struct {
PyGC_Head _this_is_not_used;
PyObject_VAR_HEAD
Py_hash_t ob_hash;
PyObject *ob_item[NUM_KEYWORDS];
} _kwtuple = {
.ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
.ob_hash = -1,
.ob_item = { &_Py_ID(data), &_Py_ID(sep), &_Py_ID(bytes_per_sep), },
};
#undef NUM_KEYWORDS
@ -480,9 +488,11 @@ binascii_hexlify(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyOb
static struct {
PyGC_Head _this_is_not_used;
PyObject_VAR_HEAD
Py_hash_t ob_hash;
PyObject *ob_item[NUM_KEYWORDS];
} _kwtuple = {
.ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
.ob_hash = -1,
.ob_item = { &_Py_ID(data), &_Py_ID(sep), &_Py_ID(bytes_per_sep), },
};
#undef NUM_KEYWORDS
@ -627,9 +637,11 @@ binascii_a2b_qp(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObj
static struct {
PyGC_Head _this_is_not_used;
PyObject_VAR_HEAD
Py_hash_t ob_hash;
PyObject *ob_item[NUM_KEYWORDS];
} _kwtuple = {
.ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
.ob_hash = -1,
.ob_item = { &_Py_ID(data), &_Py_ID(header), },
};
#undef NUM_KEYWORDS
@ -704,9 +716,11 @@ binascii_b2a_qp(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObj
static struct {
PyGC_Head _this_is_not_used;
PyObject_VAR_HEAD
Py_hash_t ob_hash;
PyObject *ob_item[NUM_KEYWORDS];
} _kwtuple = {
.ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
.ob_hash = -1,
.ob_item = { &_Py_ID(data), &_Py_ID(quotetabs), &_Py_ID(istext), &_Py_ID(header), },
};
#undef NUM_KEYWORDS
@ -774,4 +788,4 @@ exit:
return return_value;
}
/*[clinic end generated code: output=9ed7fbeec13c6606 input=a9049054013a1b77]*/
/*[clinic end generated code: output=adb855a2797c3cad input=a9049054013a1b77]*/