| /* |
| * 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. |
| */ |
| |
| /*! |
| * \brief gotvm package for TVMType interface |
| * \file type.go |
| */ |
| |
| package gotvm |
| |
| //#include "gotvm.h" |
| import "C" |
| |
| import ( |
| "fmt" |
| ) |
| |
| // pTVMType corresponding to data types. |
| type pTVMType struct { |
| code uint8 |
| bits uint8 |
| lanes uint16 |
| } |
| |
| // data type to pTVMType mapping |
| var dtypeMap = map[string] pTVMType { |
| "int8": pTVMType{0, 8, 1}, |
| "int16": pTVMType{0, 16, 1}, |
| "int32": pTVMType{0, 32, 1}, |
| "int64": pTVMType{0, 64, 1}, |
| "uint8": pTVMType{1, 8, 1}, |
| "uint16": pTVMType{1, 16, 1}, |
| "uint32": pTVMType{1, 32, 1}, |
| "uint64": pTVMType{1, 64, 1}, |
| "float32": pTVMType{2, 32, 1}, |
| "float64": pTVMType{2, 64, 1}, |
| } |
| |
| // dtypeFromTVMType return the pTVMType corresponding to given dtype |
| // |
| // `dtype` string for the given data type. |
| func dtypeFromTVMType(tvmtype pTVMType) (retVal string, err error) { |
| for k, v := range dtypeMap { |
| if v.code == tvmtype.code && v.bits == tvmtype.bits && v.lanes == tvmtype.lanes { |
| retVal = k |
| return |
| } |
| } |
| |
| err = fmt.Errorf("Cannot map TVMType:%v to dtype", tvmtype) |
| return |
| } |
| |
| // dtypeToTVMType return the pTVMType corresponding to given dtype |
| // |
| // `dtype` string for the given data type. |
| func dtypeToTVMType(args ...interface{}) (tvmtype pTVMType, err error) { |
| dtype := args[0].(string) |
| lanes := 1 |
| |
| if len(args) == 2 { |
| lanes = args[1].(int) |
| } |
| |
| for k, v := range dtypeMap { |
| if k == dtype { |
| tvmtype = v |
| tvmtype.lanes = uint16(lanes) |
| return |
| } |
| } |
| err = fmt.Errorf("Cannot map dtype:%v to TVMType", dtype) |
| return |
| } |