const runtime.maxAlign

4 uses

	runtime (current package)
		chan.go#L27: 	maxAlign  = 8
		chan.go#L28: 	hchanSize = unsafe.Sizeof(hchan{}) + uintptr(-int(unsafe.Sizeof(hchan{}))&(maxAlign-1))
		chan.go#L78: 	if hchanSize%maxAlign != 0 || elem.align > maxAlign {