disable unstable test

Author: xadupre

tests/function_libs/torch_lib/ops_test_data.py

@@ -39,6 +39,7 @@
 import copy
 import dataclasses
 import functools
+import sys
 from typing import Any, Callable, Collection, Optional
 
 import numpy as np
@@ -1585,7 +1586,8 @@ def _where_input_wrangler(
         core_ops.aten_layer_norm,
         tolerance={torch.float32: (3.7e-5, 1.8e-4)},
     ).xfail(
-        dtypes=(torch.int64,),
+        # test is unstable on macosx
+        dtypes=(torch.int64,) if sys.platform != "darwin" else (torch.int64, torch.float32),
         reason="fixme: ORT `LayerNormKernelImpl` not implemented for int64",
     ),
     TorchLibOpInfo("logit", core_ops.aten_logit, tolerance={torch.float16: (1e-1, 7e-4)}),