Test statically allocated

Author: corona10

Include/internal/pycore_interp_structs.h

@@ -900,7 +900,7 @@ struct _is {
     struct _qsbr_shared qsbr;
 
 #ifdef _Py_TIER2
-    struct _PyUOpInstruction *jit_uop_buffer;
+    struct _PyUOpInstruction jit_uop_buffer[UOP_MAX_TRACE_LENGTH];
 #endif
 
 #if defined(Py_GIL_DISABLED)

Python/optimizer.c

@@ -1281,12 +1281,14 @@ uop_optimize(
     _PyBloomFilter dependencies;
     _Py_BloomFilter_Init(&dependencies);
     PyInterpreterState *interp = _PyInterpreterState_GET();
+    /**
     if (interp->jit_uop_buffer == NULL) {
         interp->jit_uop_buffer = (_PyUOpInstruction *)PyMem_RawMalloc(UOP_MAX_TRACE_LENGTH*sizeof(_PyUOpInstruction));
         if (interp->jit_uop_buffer == NULL) {
             return 0;
         }
     }
+    **/
     _PyUOpInstruction *buffer = interp->jit_uop_buffer;
     OPT_STAT_INC(attempts);
     char *env_var = Py_GETENV("PYTHON_UOPS_OPTIMIZE");

Python/pystate.c

@@ -559,7 +559,7 @@ init_interpreter(PyInterpreterState *interp,
 
 #ifdef _Py_TIER2
      // Ensure the buffer is to be set as NULL.
-    interp->jit_uop_buffer = NULL;
+    // interp->jit_uop_buffer = NULL;
 #endif
     llist_init(&interp->mem_free_queue.head);
     llist_init(&interp->asyncio_tasks_head);
@@ -808,10 +808,12 @@ interpreter_clear(PyInterpreterState *interp, PyThreadState *tstate)
 
 #ifdef _Py_TIER2
     _Py_ClearExecutorDeletionList(interp);
+    /**
     if (interp->jit_uop_buffer != NULL) {
         PyMem_RawFree(interp->jit_uop_buffer);
         interp->jit_uop_buffer = NULL;
     }
+    **/
 #endif
     _PyAST_Fini(interp);
     _PyAtExit_Fini(interp);