https://github.com/python/cpython/commit/d6ac5c7b105fe57266bd71248e3ada41fed... commit: d6ac5c7b105fe57266bd71248e3ada41fedb5ba9 branch: main author: Dong-hee Na <donghee.na@python.org> committer: corona10 <donghee.na92@gmail.com> date: 2023-08-24T23:03:26Z summary: gh-107265: Ensure _PyCode_Quicken does not handle ENTER_EXECUTOR (gh-108460) files: M Python/specialize.c diff --git a/Python/specialize.c b/Python/specialize.c index a467f163f2ca9..fac3c3ea57d00 100644 --- a/Python/specialize.c +++ b/Python/specialize.c @@ -300,6 +300,8 @@ _PyCode_Quicken(PyCodeObject *code) for (int i = 0; i < Py_SIZE(code); i++) { opcode = _Py_GetBaseOpcode(code, i); assert(opcode < MIN_INSTRUMENTED_OPCODE); + // _PyCode_Quicken is only called when initializing a fresh code object. + assert(opcode != ENTER_EXECUTOR); int caches = _PyOpcode_Caches[opcode]; if (caches) { instructions[i + 1].cache = adaptive_counter_warmup();