github.com/apache/arrow/go/v14@v14.0.1/internal/utils/min_max_sse4_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  
    19  package utils
    20  
    21  import "unsafe"
    22  
    23  // This file contains convenience functions for utilizing SSE4 intrinsics to quickly
    24  // and efficiently get the min and max from an integral slice.
    25  
    26  //go:noescape
    27  func _int8_max_min_sse4(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer)
    28  
    29  func int8MaxMinSSE4(values []int8) (min, max int8) {
    30  	_int8_max_min_sse4(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max))
    31  	return
    32  }
    33  
    34  //go:noescape
    35  func _uint8_max_min_sse4(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer)
    36  
    37  func uint8MaxMinSSE4(values []uint8) (min, max uint8) {
    38  	_uint8_max_min_sse4(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max))
    39  	return
    40  }
    41  
    42  //go:noescape
    43  func _int16_max_min_sse4(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer)
    44  
    45  func int16MaxMinSSE4(values []int16) (min, max int16) {
    46  	_int16_max_min_sse4(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max))
    47  	return
    48  }
    49  
    50  //go:noescape
    51  func _uint16_max_min_sse4(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer)
    52  
    53  func uint16MaxMinSSE4(values []uint16) (min, max uint16) {
    54  	_uint16_max_min_sse4(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max))
    55  	return
    56  }
    57  
    58  //go:noescape
    59  func _int32_max_min_sse4(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer)
    60  
    61  func int32MaxMinSSE4(values []int32) (min, max int32) {
    62  	_int32_max_min_sse4(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max))
    63  	return
    64  }
    65  
    66  //go:noescape
    67  func _uint32_max_min_sse4(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer)
    68  
    69  func uint32MaxMinSSE4(values []uint32) (min, max uint32) {
    70  	_uint32_max_min_sse4(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max))
    71  	return
    72  }
    73  
    74  //go:noescape
    75  func _int64_max_min_sse4(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer)
    76  
    77  func int64MaxMinSSE4(values []int64) (min, max int64) {
    78  	_int64_max_min_sse4(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max))
    79  	return
    80  }
    81  
    82  //go:noescape
    83  func _uint64_max_min_sse4(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer)
    84  
    85  func uint64MaxMinSSE4(values []uint64) (min, max uint64) {
    86  	_uint64_max_min_sse4(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max))
    87  	return
    88  }