Thanks. It seems work now. But... when I define the like insn for QImode,
(define_insn "loadqi_men"
[(set (match_operand:QI 0 "register_operand" "=r")
(mem:QI (match_operand:SI 1 "general_operand" "r")))]
""
"lbu.u\t%0,0(%1)"
)
The compiler comes out such error,
error: insn does not satisfy its constraints
(insn 349 53 46 4 ../../gcc-3.4.4/gcc/unwind-pe.h:212 (set (reg:QI 1 $1)
(mem/s:QI (plus:SI (reg/v/f:SI 9 $9 [orig:154 p ] [154])
(const_int 1 [0x1])) [12 S1 A8])) 45 {} (nil)
(nil))
Well, it seems not work.
Then it's not really that you have registers. You wanted to use a
register, but (of course) you have more addressing modes than that.
(mem:QI (match_operand:QI 1 "address_operand" "p"))) will do the trick.
You could have searched the gccint documentation for "Constraints" and
you would have found this:
An operand that is a valid memory address is allowed. This is for
"load address" and "push address" instructions.
`p' in the constraint must be accompanied by `address_operand' as
the predicate in the `match_operand'. This predicate interprets
the mode specified in the `match_operand' as the mode of the memory
reference for which the address would be valid.
(Note I have match_operand:QI).
Or you could have grepped a small .md file for "(mem:QI" and see how it
behaves.
Paolo
