github.com/apache/arrow/go/v14@v14.0.1/parquet/internal/utils/unpack_bool_neon_arm64.go (about)

     1  // Licensed to the Apache Software Foundation (ASF) under one
     2  // or more contributor license agreements.  See the NOTICE file
     3  // distributed with this work for additional information
     4  // regarding copyright ownership.  The ASF licenses this file
     5  // to you under the Apache License, Version 2.0 (the
     6  // "License"); you may not use this file except in compliance
     7  // with the License.  You may obtain a copy of the License at
     8  //
     9  // http://www.apache.org/licenses/LICENSE-2.0
    10  //
    11  // Unless required by applicable law or agreed to in writing, software
    12  // distributed under the License is distributed on an "AS IS" BASIS,
    13  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14  // See the License for the specific language governing permissions and
    15  // limitations under the License.
    16  
    17  // +build !noasm
    18  
    19  package utils
    20  
    21  import "unsafe"
    22  
    23  //go:noescape
    24  func _bytes_to_bools_neon(in unsafe.Pointer, len int, out unsafe.Pointer, outlen int)
    25  
    26  // use SSE4 to SIMD accelerate the conversion of bitmap to boolean slice
    27  func bytesToBoolsNEON(in []byte, out []bool) {
    28  	_bytes_to_bools_neon(unsafe.Pointer(&in[0]), len(in), unsafe.Pointer(&out[0]), len(out))
    29  }