/* * 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. */ /*! * Copyright (c) 2018 by Contributors * \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 }