You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
68 lines
1.2 KiB
68 lines
1.2 KiB
// +build !go1.9
|
|
// +build amd64,!appengine
|
|
|
|
package bitset
|
|
|
|
// *** 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)
|
|
}
|
|
|