altanh commented on a change in pull request #7731: URL: https://github.com/apache/tvm/pull/7731#discussion_r600844682
########## File path: src/relay/transforms/simplify_expr.h ########## @@ -0,0 +1,79 @@ +/* + * 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. + */ + +/*! + * \file src/relay/transforms/simplify_expr.h + * \brief Utility data structures for simplifying Relay expressions. + */ +#ifndef TVM_RELAY_TRANSFORMS_SIMPLIFY_EXPR_H_ +#define TVM_RELAY_TRANSFORMS_SIMPLIFY_EXPR_H_ + +#include <tvm/relay/dataflow_matcher.h> +#include <tvm/relay/expr.h> + +#include <vector> + +namespace tvm { +namespace relay { + +/*! \brief Defines a static function `RewriteType::Get()` that returns a statically initialized + * instance of RewriteType. */ +#define TVM_DF_PATTERN_REWRITE_GETTER(RewriteType) \ + static DFPatternRewrite* Get() { \ + static RewriteType rw; \ + return &rw; \ + } \ + static DFPatternCallback GetCallback() { \ + static DFPatternCallback cb = RewriteType::Get()->MakeCallback(); \ + return cb; \ + } Review comment: Indeed the overhead of initializing and calling is probably negligible compared to running the pass itself, I did this following comments on my previous PR. @comaniac maybe you can comment? In the end I am fine with either way -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
