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gh-GH-131798: optimize jit attribute loads on immutable types #146449

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Merged
kumaraditya303 merged 5 commits into from
Mar 26, 2026
+7 −4
Merged

gh-GH-131798: optimize jit attribute loads on immutable types #146449

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4b401a7
optimize jit attribute loads on immutable types
kumaraditya303 Mar 26, 2026
ad15c8d
Merge branch 'main' of https://github.com/python/cpython into jit
kumaraditya303 Mar 26, 2026
65cae76
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kumaraditya303 Mar 26, 2026
8f860c9
improve test
kumaraditya303 Mar 26, 2026
92658e4
fix test_call_list_append
kumaraditya303 Mar 26, 2026
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@kumaraditya303
kumaraditya303 committed Mar 26, 2026
commit 65cae767901682c5bd69824c6ef567deb87fcfe5
1 change: 1 addition & 0 deletions Python/optimizer_analysis.c
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Expand Up @@ -368,6 +368,7 @@ lookup_attr(JitOptContext *ctx, _PyBloomFilter *dependencies, _PyUOpInstruction
PyObject *lookup = _PyType_Lookup(type, name);
if (lookup) {
int opcode = mortal;
// if the object is immortal or the type is immutable, borrowing is safe
if (_Py_IsImmortal(lookup) || (type->tp_flags & Py_TPFLAGS_IMMUTABLETYPE)) {
opcode = immortal;
}
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