Fix sys.getdxp() when configured with --enable-pystats. (GH-31251)

Author: markshannon

Python/ceval.c

@@ -7459,14 +7459,30 @@ _Py_GetDXProfile(PyObject *self, PyObject *args)
     int i;
     PyObject *l = PyList_New(257);
     if (l == NULL) return NULL;
-    for (i = 0; i < 257; i++) {
+    for (i = 0; i < 256; i++) {
         PyObject *x = getarray(_py_stats.opcode_stats[i].pair_count);
         if (x == NULL) {
             Py_DECREF(l);
             return NULL;
         }
         PyList_SET_ITEM(l, i, x);
     }
+    PyObject *counts = PyList_New(256);
+    if (counts == NULL) {
+        Py_DECREF(l);
+        return NULL;
+    }
+    for (i = 0; i < 256; i++) {
+        PyObject *x = PyLong_FromUnsignedLongLong(
+            _py_stats.opcode_stats[i].execution_count);
+        if (x == NULL) {
+            Py_DECREF(counts);
+            Py_DECREF(l);
+            return NULL;
+        }
+        PyList_SET_ITEM(counts, i, x);
+    }
+    PyList_SET_ITEM(l, 256, counts);
     return l;
 }