| /* |
| * 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 unwrap_vector_expr.h |
| * |
| * \brief Centralized location for extraction of constraints from a boolean expression. |
| */ |
| |
| #ifndef TVM_ARITH_UNWRAP_VECTOR_EXPR_H_ |
| #define TVM_ARITH_UNWRAP_VECTOR_EXPR_H_ |
| |
| #include <tvm/tir/expr.h> |
| |
| #include <vector> |
| |
| namespace tvm { |
| namespace arith { |
| |
| /* \brief Unwraps a component of a vector expression |
| * |
| * Utility to break up a vector expression into a specific component |
| * of the expression. |
| * |
| * Example: `Ramp(start, stride, n)` => `start + stride*lane` |
| * Example: `Broadcast(value, n)` => `value` |
| * Example: `2*Ramp(start, stride, n) + Broadcast(value,n)` => `2*(start + stride*lane) + value` |
| * |
| * \param vector_expr The vectorized expression to examine |
| * |
| * \param lane Which lane of the vectorized expression to extract. |
| * |
| * \returns A scalar expression |
| */ |
| PrimExpr UnwrapVectorExpr(const PrimExpr& vector_expr, const PrimExpr& lane); |
| |
| } // namespace arith |
| } // namespace tvm |
| |
| #endif // TVM_ARITH_UNWRAP_VECTOR_EXPR_H_ |