if !arch.ARM64Suffix(prog, cond) {
				p.errorf("unrecognized suffix .%q", cond)
				return
			}

		case sys.AMD64, sys.I386:
			if err := x86.ParseSuffix(prog, cond); err != nil {
				p.errorf("%v", err)
				return
			}
		case sys.RISCV64:
			if err := riscv.ParseSuffix(prog, cond); err != nil {
				p.errorf("unrecognized suffix .%q", cond)
				return
			}
		default:
			p.errorf("unrecognized suffix .%q", cond)