chore: import upstream snapshot with attribution

python/tvm/s_tir/__init__.py

@@ -0,0 +1,57 @@
+# isort: skip_file
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# pylint: disable=invalid-name
+"""S-TIR namespace for scheduable TensorIR"""
+
+from tvm.tirx.function import TensorIntrin
+
+# dlight depends on compiler-only C++ functions (e.g. s_tir.schedule.GetSBlockRealize),
+# so skip it in runtime-only builds.
+from tvm.base import _RUNTIME_ONLY
+
+from . import _ffi_api
+from . import backend
+from . import pipeline
+from . import transform
+from . import schedule
+from .schedule import StmtSRef, SBlockScope, ScheduleState, Schedule, ScheduleError, Trace
+from .sblock_dependence_info import SBlockDependenceInfo
+from .data_layout import SLayout, SBijectiveLayout, sbijective_layout, slayout
+
+if not _RUNTIME_ONLY:
+    from . import analysis
+    from . import meta_schedule
+    from . import dlight
+
+
+def renew_defs(func):
+    """Re-generate the definition nodes for a TIR, including VarDef, BufferDef.
+    This pass works as a simple DeepCopy to duplicate a function with different Vars and
+    Buffers but the same behavior
+
+    Parameters
+    ----------
+    func: PrimFunc
+        The input function
+
+    Returns
+    -------
+    result : PrimFunc
+        The new generated func.
+    """
+    return _ffi_api.RenewDefs(func)