gitea/vendor/github.com/RoaringBitmap/roaring/popcnt_asm.go
2018-05-19 20:49:46 +08:00

68 lines
1.1 KiB
Go
Vendored

// +build amd64,!appengine,!go1.9
package roaring
// *** the following functions are defined in popcnt_amd64.s
//go:noescape
func hasAsm() bool
// useAsm is a flag used to select the GO or ASM implementation of the popcnt function
var useAsm = hasAsm()
//go:noescape
func popcntSliceAsm(s []uint64) uint64
//go:noescape
func popcntMaskSliceAsm(s, m []uint64) uint64
//go:noescape
func popcntAndSliceAsm(s, m []uint64) uint64
//go:noescape
func popcntOrSliceAsm(s, m []uint64) uint64
//go:noescape
func popcntXorSliceAsm(s, m []uint64) uint64
func popcntSlice(s []uint64) uint64 {
if useAsm {
return popcntSliceAsm(s)
}
return popcntSliceGo(s)
}
func popcntMaskSlice(s, m []uint64) uint64 {
if useAsm {
return popcntMaskSliceAsm(s, m)
}
return popcntMaskSliceGo(s, m)
}
func popcntAndSlice(s, m []uint64) uint64 {
if useAsm {
return popcntAndSliceAsm(s, m)
}
return popcntAndSliceGo(s, m)
}
func popcntOrSlice(s, m []uint64) uint64 {
if useAsm {
return popcntOrSliceAsm(s, m)
}
return popcntOrSliceGo(s, m)
}
func popcntXorSlice(s, m []uint64) uint64 {
if useAsm {
return popcntXorSliceAsm(s, m)
}
return popcntXorSliceGo(s, m)
}