Revert "Make custom op alias check consistent (#164576)"

This reverts commit e438db2.

Reverted #164576 on behalf of https://github.com/facebook-github-bot due to Diff reverted internally ([comment](#164467 (comment)))

Author: pytorchmergebot

torch/_library/utils.py

@@ -341,13 +341,13 @@ def check_aliasing_constraint(name, prev, result, get_module=lambda: "???"):
     """
     custom operators' outputs must not alias any inputs or other outputs.
     """
-    storages = {t.untyped_storage()._cdata for t in prev if isinstance(t, torch.Tensor)}
+    storages = {id(t.untyped_storage()) for t in prev if isinstance(t, torch.Tensor)}
     tuple_result = result
     if not isinstance(result, tuple):
         tuple_result = (result,)
     for tensor in iter_tensors(tuple_result, {}):
-        key = tensor.untyped_storage()._cdata
-        if tensor.untyped_storage()._cdata in storages:
+        key = id(tensor.untyped_storage())
+        if id(tensor.untyped_storage()) in storages:
             raise RuntimeError(
                 f"{name} (with implementation in {get_module()}): "
                 f"The output of this custom operator (1) must not "

torch/csrc/autograd/init.cpp

@@ -1113,7 +1113,7 @@ static PyObject* any_output_is_alias_to_input_or_output(
     if (!t.storage()) {
       return false;
     }
-    auto* cp = t.storage().unsafeGetStorageImpl();
+    auto* cp = t.storage().data_ptr().get_context();
     if (cp) {
       s.insert(cp);
     }
@@ -1124,7 +1124,7 @@ static PyObject* any_output_is_alias_to_input_or_output(
     if (!t.storage()) {
       return false;
     }
-    auto* cp = t.storage().unsafeGetStorageImpl();
+    auto* cp = t.storage().data_ptr().get_context();
     if (!cp) {
       return false;
     }