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GH-131798: Narrow types more aggressively in the JIT (GH-134373)

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Brandt Bucher 2025-05-20 18:09:51 -04:00 • committed by GitHub
parent e1c0c451a2
commit 2f0570caf4
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10 changed files with 180 additions and 88 deletions
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12
Python/optimizer_bytecodes.c
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@ -118,6 +118,18 @@ dummy_func(void) {
sym_set_type(left, &PyLong_Type);
}
op(_CHECK_ATTR_CLASS, (type_version/2, owner -- owner)) {
PyObject *type = (PyObject *)_PyType_LookupByVersion(type_version);
if (type) {
if (type == sym_get_const(ctx, owner)) {
REPLACE_OP(this_instr, _NOP, 0, 0);
}
else {
sym_set_const(owner, type);
}
}
}
op(_GUARD_TYPE_VERSION, (type_version/2, owner -- owner)) {
assert(type_version);
if (sym_matches_type_version(owner, type_version)) {