mirror of
https://github.com/featurebasedb/featurebase.git
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87 lines
1.8 KiB
Go
87 lines
1.8 KiB
Go
// Copyright 2017 Pilosa Corp.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// +build amd64
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package roaring
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func hasAsm() bool
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func BSFQ(memory uint64) int
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func POPCNTQ(memory uint64) int
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//go:noescape
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var useAsm = hasAsm()
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//go:noescape
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func popcntSliceAsm(s []uint64) uint64
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//go:noescape
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func popcntMaskSliceAsm(s, m []uint64) uint64
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//go:noescape
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func popcntAndSliceAsm(s, m []uint64) uint64
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//go:noescape
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func popcntOrSliceAsm(s, m []uint64) uint64
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//go:noescape
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func popcntXorSliceAsm(s, m []uint64) uint64
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//go:noescape
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func popcntAsm(x uint64) uint64
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func popcntSlice(s []uint64) uint64 {
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if useAsm {
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return popcntSliceAsm(s)
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}
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return popcntSliceGo(s)
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}
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func popcntMaskSlice(s, m []uint64) uint64 {
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if useAsm {
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return popcntMaskSliceAsm(s, m)
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}
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return popcntMaskSliceGo(s, m)
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}
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func popcntAndSlice(s, m []uint64) uint64 {
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if useAsm {
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return popcntAndSliceAsm(s, m)
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}
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return popcntAndSliceGo(s, m)
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}
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func popcntOrSlice(s, m []uint64) uint64 {
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if useAsm {
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return popcntOrSliceAsm(s, m)
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}
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return popcntOrSliceGo(s, m)
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}
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func popcntXorSlice(s, m []uint64) uint64 {
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if useAsm {
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return popcntXorSliceAsm(s, m)
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}
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return popcntXorSliceGo(s, m)
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}
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func popcnt(x uint64) uint64 {
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if useAsm {
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return popcntAsm(x)
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}
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return popcntGo(x)
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}
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