}
	if s.f.Config.LinkReg != -1 {
		if isLeaf(f) {
			// Leaf functions don't save/restore the link register.
			s.allocatable &^= 1 << uint(s.f.Config.LinkReg)
		}
	}
	if s.f.Config.ctxt.Flag_dynlink {
		switch s.f.Config.arch {
		case "386":
			// nothing to do.
			// Note that for Flag_shared (position independent code)
			// we do need to be careful, but that carefulness is hidden