From: Dong-hee Na <donghee.na@python.org>
Date: Thu, 24 Aug 2023 23:03:26 +0000 (+0900)
Subject: gh-107265: Ensure _PyCode_Quicken does not handle ENTER_EXECUTOR (gh-108460)
X-Git-Tag: v3.13.0a1~785
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=d6ac5c7b105fe57266bd71248e3ada41fedb5ba9;p=thirdparty%2FPython%2Fcpython.git

gh-107265: Ensure _PyCode_Quicken does not handle ENTER_EXECUTOR (gh-108460)
---

diff --git a/Python/specialize.c b/Python/specialize.c
index a467f163f2ca..fac3c3ea57d0 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();