github.com/apache/arrow/go/v7@v7.0.1/parquet/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 // +build !noasm 18 19 package utils 20 21 import ( 22 "unsafe" 23 ) 24 25 // This file contains convenience functions for utilizing AVX2 intrinsics to quickly 26 // and efficiently get the min and max from an integral slice. 27 28 //go:noescape 29 func _int32_max_min_avx2(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer) 30 31 func int32MaxMinAVX2(values []int32) (min, max int32) { 32 _int32_max_min_avx2(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max)) 33 return 34 } 35 36 //go:noescape 37 func _uint32_max_min_avx2(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer) 38 39 func uint32MaxMinAVX2(values []uint32) (min, max uint32) { 40 _uint32_max_min_avx2(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max)) 41 return 42 } 43 44 //go:noescape 45 func _int64_max_min_avx2(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer) 46 47 func int64MaxMinAVX2(values []int64) (min, max int64) { 48 _int64_max_min_avx2(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max)) 49 return 50 } 51 52 //go:noescape 53 func _uint64_max_min_avx2(values unsafe.Pointer, length int, minout, maxout unsafe.Pointer) 54 55 func uint64MaxMinAVX2(values []uint64) (min, max uint64) { 56 _uint64_max_min_avx2(unsafe.Pointer(&values[0]), len(values), unsafe.Pointer(&min), unsafe.Pointer(&max)) 57 return 58 }