general_operand() not accepting CONCAT?

[Rask Ingemann Lambertsen]

I just got

/home/rask/cvssrc/gcc/gcc/testsuite/gcc.c-torture/compile/complex-3.c:17:
error: unrecognizable insn:
(insn 69 67 70 5 (set (mem:SC (pre_dec:HI (reg/f:HI 12 sp)) [0 S8 A8])
        (concat:SC (reg:SF 36)
            (reg:SF 37))) -1 (nil)
    (nil))

which I thought I'd covered with

(define_mode_macro GT16 [SI DI TI SF DF XF SC DC XC SD DD TD CHI CSI CDI
CTI])

(define_insn_and_split "*push<mode>1"
  [(set (mem:GT16 (pre_dec:HI (reg:HI SP_REG)))
        (match_operand:GT16 0 "general_operand" "RmIpu"))]
  "TARGET_PUSH_IMM || !CONSTANT_P (operands[0])"
  "#"
  "reload_completed"
  ...

but looking at recog.c, sure enough: general_operand() doesn't accept the
(concat ...) construct. Is that intentional?

-- 
Rask Ingemann Lambertsen