From 001eb520b5757294dc455c900d94b7b153de6cdd Mon Sep 17 00:00:00 2001
From: Mark Shannon <mark@hotpy.org>
Date: Mon, 7 Jun 2021 18:38:06 +0100
Subject: bpo-44187: Quickening infrastructure (GH-26264)

* Add co_firstinstr field to code object.

* Implement barebones quickening.

* Use non-quickened bytecode when tracing.

* Add NEWS item

* Add new file to Windows build.

* Don't specialize instructions with EXTENDED_ARG.
---
 Python/sysmodule.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'Python/sysmodule.c')

diff --git a/Python/sysmodule.c b/Python/sysmodule.c
index f1f4492f83..b71a096eaa 100644
--- a/Python/sysmodule.c
+++ b/Python/sysmodule.c
@@ -18,6 +18,7 @@ Data members:
 #include "pycore_ceval.h"         // _Py_RecursionLimitLowerWaterMark()
 #include "pycore_initconfig.h"    // _PyStatus_EXCEPTION()
 #include "pycore_object.h"        // _PyObject_IS_GC()
+#include "pycore_code.h"          // _Py_QuickenedCount
 #include "pycore_pathconfig.h"    // _PyPathConfig_ComputeSysPath0()
 #include "pycore_pyerrors.h"      // _PyErr_Fetch()
 #include "pycore_pylifecycle.h"   // _PyErr_WriteUnraisableDefaultHook()
@@ -1763,8 +1764,20 @@ sys_gettotalrefcount_impl(PyObject *module)
 {
     return _Py_GetRefTotal();
 }
+
 #endif /* Py_REF_DEBUG */
 
+/*[clinic input]
+sys._getquickenedcount -> Py_ssize_t
+[clinic start generated code]*/
+
+static Py_ssize_t
+sys__getquickenedcount_impl(PyObject *module)
+/*[clinic end generated code: output=1ab259e7f91248a2 input=249d448159eca912]*/
+{
+    return _Py_QuickenedCount;
+}
+
 /*[clinic input]
 sys.getallocatedblocks -> Py_ssize_t
 
@@ -1995,6 +2008,7 @@ static PyMethodDef sys_methods[] = {
 #endif
     SYS_GETFILESYSTEMENCODING_METHODDEF
     SYS_GETFILESYSTEMENCODEERRORS_METHODDEF
+    SYS__GETQUICKENEDCOUNT_METHODDEF
 #ifdef Py_TRACE_REFS
     {"getobjects",      _Py_GetObjects, METH_VARARGS},
 #endif
-- 
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