@@ -539,7 +539,8 @@ typedef struct {
 
 PyAPI_FUNC(int) _Py_Instrument(PyCodeObject *co, PyInterpreterState *interp);
 
-extern _Py_CODEUNIT _Py_GetBaseCodeUnit(PyCodeObject *code, int offset);
+// Export for '_testinternalcapi' shared extension
+PyAPI_FUNC(_Py_CODEUNIT) _Py_GetBaseCodeUnit(PyCodeObject *code, int offset);
 
 extern int _PyInstruction_GetLength(PyCodeObject *code, int offset);
 
 
@@ -1770,13 +1770,12 @@ dummy_func(
             FT_ATOMIC_STORE_INT8_RELEASE(gen->gi_frame_state, FRAME_SUSPENDED + oparg);
             /* We don't know which of these is relevant here, so keep them equal */
             assert(INLINE_CACHE_ENTRIES_SEND == INLINE_CACHE_ENTRIES_FOR_ITER);
-            #if TIER_ONE
-            assert(frame->instr_ptr->op.code == INSTRUMENTED_LINE ||
-                   frame->instr_ptr->op.code == INSTRUMENTED_INSTRUCTION ||
-                   _PyOpcode_Deopt[frame->instr_ptr->op.code] == SEND ||
-                   _PyOpcode_Deopt[frame->instr_ptr->op.code] == FOR_ITER ||
-                   _PyOpcode_Deopt[frame->instr_ptr->op.code] == INTERPRETER_EXIT ||
-                   _PyOpcode_Deopt[frame->instr_ptr->op.code] == ENTER_EXECUTOR);
+            #if TIER_ONE && defined(Py_DEBUG)
+            if (!PyStackRef_IsNone(frame->f_executable)) {
+                int i = frame->instr_ptr - _PyFrame_GetBytecode(frame);
+                int opcode = _Py_GetBaseCodeUnit(_PyFrame_GetCode(frame), i).op.code;
+                assert(opcode == SEND || opcode == FOR_ITER);
+            }
             #endif
             RELOAD_STACK();
             LOAD_IP(1 + INLINE_CACHE_ENTRIES_SEND);