@@ -4621,7 +4621,8 @@ PyListWriter_Extend(PyListWriter *writer, PyObject *iterable)
 }
 
 
-static int
+// Force inlining to optimize "if (steal)" at build time
+static inline Py_ALWAYS_INLINE int
 listwriter_extend_array(PyListWriter *writer,
                         PyObject *const *items, Py_ssize_t nitem,
                         int steal)
Original file line number	Diff line number	Diff line change
`@@ -4621,7 +4621,8 @@ PyListWriter_Extend(PyListWriter writer, PyObject iterable)`
`4621`	`4621`	`}`
`4622`	`4622`
`4623`	`4623`
`4624`		`-static int`
	`4624`	`+// Force inlining to optimize "if (steal)" at build time`
	`4625`	`+static inline Py_ALWAYS_INLINE int`
`4625`	`4626`	`listwriter_extend_array(PyListWriter *writer,`
`4626`	`4627`	`PyObject const items, Py_ssize_t nitem,`
`4627`	`4628`	`int steal)`