ceph/src/arrow/go/parquet/internal/utils/min_max_sse4_amd64.go

   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 // 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 _int32_max_min_sse4(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer)
  28
  29 func int32MaxMinSSE4(values []int32) (min, max int32) {
  30         _int32_max_min_sse4(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max))
  31         return
  32 }
  33
  34 //go:noescape
  35 func _uint32_max_min_sse4(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer)
  36
  37 func uint32MaxMinSSE4(values []uint32) (min, max uint32) {
  38         _uint32_max_min_sse4(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max))
  39         return
  40 }
  41
  42 //go:noescape
  43 func _int64_max_min_sse4(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer)
  44
  45 func int64MaxMinSSE4(values []int64) (min, max int64) {
  46         _int64_max_min_sse4(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max))
  47         return
  48 }
  49
  50 //go:noescape
  51 func _uint64_max_min_sse4(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer)
  52
  53 func uint64MaxMinSSE4(values []uint64) (min, max uint64) {
  54         _uint64_max_min_sse4(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max))
  55         return
  56 }