Re: Question about Machine Description

[yazdanbakhsh]

Hi,

I'm working with GCC 2.7. I think, It doesn't support define_predict.
I define a c function in the mips.c file and add the following lines:

int
new_arith_operand (op, mode)
     rtx op;
     enum machine_mode mode;
{
  if (GET_CODE (op) == CONST_INT)
        if(NEW_INT_UNSIGNED (op))
            return TRUE;
        else
            return FALSE;

  return register_operand (op, mode);
}

I use the name of this function to check the value of the input operand.
When I compile the gcc the following error happens:

./libgcc2.c: In function `__divdi3':
./libgcc2.c:669: internal error--unrecognizable insn:
(insn 787 786 780 (set (reg:SI 104)
        (ior:SI (reg:SI 104)
            (const_int 65535))) -1 (insn_list 786 (nil))
    (expr_list:REG_EQUAL (const_int 16777215)
        (nil)))


I appreciate any help.

Regards
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