gh-115999: Refactor LOAD_GLOBAL
specializations to avoid reloading {globals, builtins} keys
#124953
+354
−159
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Each of the
LOAD_GLOBAL
specializations is implemented roughly as:This is not thread-safe in free-threaded builds; the keys object may be replaced in between steps (3) and (4).
This change refactors the specializations to avoid reloading the keys object and instead pass the keys object from guards to be consumed by downstream uops.
--disable-gil
builds #115999