Slightly improve performance in codegen.c via removing indirectly double check through Py_XDECREF(co);

benediktjohannes · web-flow · commit 50b1cba6c255 · 2026-02-14T17:40:13.000+01:00
diff --git a/Python/codegen.c b/Python/codegen.c
@@ -1422,7 +1422,6 @@ codegen_function_body(compiler *c, stmt_ty s, int is_async, Py_ssize_t funcflags
     PyCodeObject *co = _PyCompile_OptimizeAndAssemble(c, 1);
     _PyCompile_ExitScope(c);
     if (co == NULL) {
-        Py_XDECREF(co);
         return ERROR;
     }
     int ret = codegen_make_closure(c, LOC(s), co, funcflags);

Original file line number	Diff line number	Diff line change
`@@ -1422,7 +1422,6 @@ codegen_function_body(compiler *c, stmt_ty s, int is_async, Py_ssize_t funcflags`
`1422`	`1422`	`PyCodeObject *co = _PyCompile_OptimizeAndAssemble(c, 1);`
`1423`	`1423`	`_PyCompile_ExitScope(c);`
`1424`	`1424`	`if (co == NULL) {`
`1425`		`- Py_XDECREF(co);`
`1426`	`1425`	`return ERROR;`
`1427`	`1426`	`}`
`1428`	`1427`	`int ret = codegen_make_closure(c, LOC(s), co, funcflags);`