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68 lines
1.2 KiB
Go
68 lines
1.2 KiB
Go
// +build !go1.9
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// +build amd64,!appengine
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package bitset
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// *** the following functions are defined in popcnt_amd64.s
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//go:noescape
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func hasAsm() bool
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// useAsm is a flag used to select the GO or ASM implementation of the popcnt function
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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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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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