_ = x[TYPE_BRANCH-1]
	_ = x[TYPE_TEXTSIZE-2]
	_ = x[TYPE_MEM-3]
	_ = x[TYPE_CONST-4]
	_ = x[TYPE_FCONST-5]
	_ = x[TYPE_SCONST-6]
	_ = x[TYPE_REG-7]
	_ = x[TYPE_ADDR-8]
	_ = x[TYPE_SHIFT-9]
	_ = x[TYPE_REGREG-10]
	_ = x[TYPE_REGREG2-11]
	_ = x[TYPE_INDIR-12]
	_ = x[TYPE_REGLIST-13]
	_ = x[TYPE_SPECIAL-14]
}

			break
		}
		if a.Reg == 0 && a.Index == 0 && a.Scale == 0 && a.Name == 0 && a.Sym == nil {
			ctxt.Diag("argument is TYPE_ADDR, should be TYPE_CONST, in %v", p)
		}
		return

	case TYPE_SHIFT, TYPE_REGREG:
		if a.Index != 0 || a.Scale != 0 || a.Name != 0 || a.Sym != nil || a.Val != nil {
			break
		}
		return

	case TYPE_INDIR:
		// Expect sym and name to be set, nothing else.