github.com/apache/arrow/go/v10@v10.0.1/internal/utils/min_max_avx2_amd64.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  //go:build !noasm
    18  // +build !noasm
    19  
    20  package utils
    21  
    22  import (
    23  	"unsafe"
    24  )
    25  
    26  // This file contains convenience functions for utilizing AVX2 intrinsics to quickly
    27  // and efficiently get the min and max from an integral slice.
    28  
    29  //go:noescape
    30  func _int8_max_min_avx2(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer)
    31  
    32  func int8MaxMinAVX2(values []int8) (min, max int8) {
    33  	_int8_max_min_avx2(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max))
    34  	return
    35  }
    36  
    37  //go:noescape
    38  func _uint8_max_min_avx2(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer)
    39  
    40  func uint8MaxMinAVX2(values []uint8) (min, max uint8) {
    41  	_uint8_max_min_avx2(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max))
    42  	return
    43  }
    44  
    45  //go:noescape
    46  func _int16_max_min_avx2(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer)
    47  
    48  func int16MaxMinAVX2(values []int16) (min, max int16) {
    49  	_int16_max_min_avx2(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max))
    50  	return
    51  }
    52  
    53  //go:noescape
    54  func _uint16_max_min_avx2(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer)
    55  
    56  func uint16MaxMinAVX2(values []uint16) (min, max uint16) {
    57  	_uint16_max_min_avx2(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max))
    58  	return
    59  }
    60  
    61  //go:noescape
    62  func _int32_max_min_avx2(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer)
    63  
    64  func int32MaxMinAVX2(values []int32) (min, max int32) {
    65  	_int32_max_min_avx2(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max))
    66  	return
    67  }
    68  
    69  //go:noescape
    70  func _uint32_max_min_avx2(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer)
    71  
    72  func uint32MaxMinAVX2(values []uint32) (min, max uint32) {
    73  	_uint32_max_min_avx2(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max))
    74  	return
    75  }
    76  
    77  //go:noescape
    78  func _int64_max_min_avx2(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer)
    79  
    80  func int64MaxMinAVX2(values []int64) (min, max int64) {
    81  	_int64_max_min_avx2(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max))
    82  	return
    83  }
    84  
    85  //go:noescape
    86  func _uint64_max_min_avx2(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer)
    87  
    88  func uint64MaxMinAVX2(values []uint64) (min, max uint64) {
    89  	_uint64_max_min_avx2(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max))
    90  	return
    91  }