Null test before use

markshannon · markshannon · commit a9297a0ea048 · 2025-07-08T10:56:25.000+01:00
diff --git a/Python/optimizer.c b/Python/optimizer.c
@@ -1473,10 +1473,10 @@ _PyExecutor_GetColdExecutor(void)
         return interp->cold_executor;
     }
     _PyExecutorObject *cold = allocate_executor(0, 1);
-    ((_PyUOpInstruction *)cold->trace)->opcode = _COLD_EXIT;
     if (cold == NULL) {
         Py_FatalError("Cannot allocate core JIT code");
     }
+    ((_PyUOpInstruction *)cold->trace)->opcode = _COLD_EXIT;
     _Py_SetImmortal((PyObject *)cold);
 #ifdef _Py_JIT
     cold->jit_code = NULL;

Original file line number	Diff line number	Diff line change
`@@ -1473,10 +1473,10 @@ _PyExecutor_GetColdExecutor(void)`
`1473`	`1473`	`return interp->cold_executor;`
`1474`	`1474`	`}`
`1475`	`1475`	`_PyExecutorObject *cold = allocate_executor(0, 1);`
`1476`		`- ((_PyUOpInstruction *)cold->trace)->opcode = _COLD_EXIT;`
`1477`	`1476`	`if (cold == NULL) {`
`1478`	`1477`	`Py_FatalError("Cannot allocate core JIT code");`
`1479`	`1478`	`}`
	`1479`	`+ ((_PyUOpInstruction *)cold->trace)->opcode = _COLD_EXIT;`
`1480`	`1480`	`_Py_SetImmortal((PyObject *)cold);`
`1481`	`1481`	`#ifdef _Py_JIT`
`1482`	`1482`	`cold->jit_code = NULL;`