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gh-115999: Specialize loading attributes from modules in free-threaded builds (#127711)

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We use the same approach that was used for specialization of LOAD_GLOBAL in free-threaded builds:

_CHECK_ATTR_MODULE is renamed to _CHECK_ATTR_MODULE_PUSH_KEYS; it pushes the keys object for the following _LOAD_ATTR_MODULE_FROM_KEYS (nee _LOAD_ATTR_MODULE). This arrangement avoids having to recheck the keys version.

_LOAD_ATTR_MODULE is renamed to _LOAD_ATTR_MODULE_FROM_KEYS; it loads the value from the keys object pushed by the preceding _CHECK_ATTR_MODULE_PUSH_KEYS at the cached index.
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mpage 2024-12-13 10:17:16 -08:00 • committed by GitHub
parent 292067fbc9
commit 2de048ce79
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15 changed files with 435 additions and 177 deletions
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Lib/test/test_opcache.py
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@ -892,7 +892,7 @@ class TestRacesDoNotCrash(TestBase):
opname = "LOAD_ATTR_METHOD_WITH_VALUES"
self.assert_races_do_not_crash(opname, get_items, read, write)
@requires_specialization
@requires_specialization_ft
def test_load_attr_module(self):
def get_items():
items = []