const runtime.maxAlign

4 uses

	runtime (current package)
		chan.go#L29: 	maxAlign  = 8
		chan.go#L30: 	hchanSize = unsafe.Sizeof(hchan{}) + uintptr(-int(unsafe.Sizeof(hchan{}))&(maxAlign-1))
		chan.go#L82: 	if hchanSize%maxAlign != 0 || elem.Align_ > maxAlign {