From: Dennis Sweeney <36520290+sweeneyde@users.noreply.github.com>
Date: Fri, 15 Apr 2022 14:21:35 +0000 (-0400)
Subject: gh-90699: Use _Py_STR(empty) instead of PyUnicode_New(0, 0) for BUILD_STRING (GH... 
X-Git-Tag: v3.11.0b1~361
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=72965981d1128b3923dad5e850c8cff626ae4dc7;p=thirdparty%2FPython%2Fcpython.git

gh-90699: Use _Py_STR(empty) instead of PyUnicode_New(0, 0) for BUILD_STRING (GH-91476)
---

diff --git a/Python/ceval.c b/Python/ceval.c
index b46b1ef84293..7891547ffc68 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -3152,12 +3152,8 @@ handle_eval_breaker:
 
         TARGET(BUILD_STRING) {
             PyObject *str;
-            PyObject *empty = PyUnicode_New(0, 0);
-            if (empty == NULL) {
-                goto error;
-            }
-            str = _PyUnicode_JoinArray(empty, stack_pointer - oparg, oparg);
-            Py_DECREF(empty);
+            str = _PyUnicode_JoinArray(&_Py_STR(empty),
+                                       stack_pointer - oparg, oparg);
             if (str == NULL)
                 goto error;
             while (--oparg >= 0) {