[Bug bootstrap/49195] [4.7 Regression] Error building libgcc for powerpc64 since r174305

[segher at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49195

--- Comment #4 from Segher Boessenkool <segher at gcc dot gnu.org> 2011-05-27 
20:14:05 UTC ---
This is the match_op_dup operand in


(define_insn ""
  [(set (match_operand:CC 0 "cc_reg_operand" "=x,?y")
        (compare:CC (match_operator:SI 1 "scc_comparison_operator"
                                       [(match_operand 2 "cc_reg_operand"
"y,y")
                                        (const_int 0)])
                    (const_int 0)))
   (set (match_operand:SI 3 "gpc_reg_operand" "=r,r")
        (match_op_dup 1 [(match_dup 2) (const_int 0)]))]
  "TARGET_32BIT"
  "@
   mfcr %3%Q2\;{rlinm.|rlwinm.} %3,%3,%J1,1
   #"
  [(set_attr "type" "delayed_compare")
   (set_attr "length" "8,16")])


and the similar define_split.