chore: import upstream snapshot with attribution

python/tvm/tirx/predicate.py

@@ -0,0 +1,45 @@
+# 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=no-member
+"""Async structures for TIRX"""
+
+import inspect
+from collections.abc import Callable
+
+from tvm_ffi import register_object
+
+from tvm.runtime import Object
+from tvm.tirx import Expr, Var
+
+from . import _ffi_api
+
+
+@register_object("tirx.Predicate")
+class Predicate(Object):
+    """A predicate object for TIRX"""
+
+    vars: list[Var]
+    pred: Expr
+
+    def __init__(self, f_pred: Callable[..., Expr]):
+        vars = [Var(name, "int32") for name in inspect.signature(f_pred).parameters]
+        pred = f_pred(*vars)
+        self.__init_handle_by_constructor__(_ffi_api.Predicate, vars, pred)
+
+    def apply(self, indices: list[Expr]) -> Expr:
+        """Apply the predicate to the given indices"""
+        return _ffi_api.PredicateApply(self, indices)