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op.py
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op.py
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# 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
"""Primitive operators in the TVM IR."""
import tvm._ffi
from . expr import RelayExpr
from . import _ffi_api
@tvm._ffi.register_object("Op")
class Op(RelayExpr):
"""Primitive operator in the IR."""
def __init__(self):
raise RuntimeError("Cannot create op, use get instead")
@staticmethod
def get(op_name):
"""Get the Op for a given name
Parameters
----------
op_name : str
The operator name
Returns
-------
op : Op
The op of the corresponding name
"""
return _ffi_api.GetOp(op_name)
def get_attr(self, attr_name):
"""Get additional attribute about the operator.
Parameters
----------
attr_name : str
The attribute name.
Returns
-------
value : object
The attribute value
"""
return _ffi_api.OpGetAttr(self, attr_name)
def set_attr(self, attr_name, value, plevel=10):
"""Set attribute about the operator.
Parameters
----------
attr_name : str
The attribute name
value : object
The attribute value
plevel : int
The priority level
"""
_ffi_api.OpSetAttr(self, attr_name, value, plevel)
def reset_attr(self, attr_name):
"""Reset attribute about the operator.
Parameters
----------
attr_name : str
The attribute name
"""
_ffi_api.OpResetAttr(self, attr_name)
def register_op_attr(op_name, attr_key, value=None, level=10):
"""Register an operator property of an operator by name.
Parameters
----------
op_name : str
The name of operator
attr_key : str
The attribute name.
value : object, optional
The value to set
level : int, optional
The priority level
Returns
-------
fregister : function
Register function if value is not specified.
"""
def _register(v):
"""internal register function"""
_ffi_api.RegisterOpAttr(op_name, attr_key, v, level)
return v
return _register(value) if value is not None else _register