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Re: mipsisa32-unknown-elf-as: Error: too large constant specified


Thiemo Seufer <ica2_ts@csv.ica.uni-stuttgart.de> writes:

> > IMHO the right solution is to fix these 32 bit values after each
> > call of my_getExpression().
> 
> Well, that's my take of it.

Hmmm.  It currently works to pass O_big to case 'I'.  Your patch would
change that.  There is a bunch of code in load_register() to handle
O_big.  Are we sure it is correct to discard that code?

> +  if (ex->X_op == O_constant && HAVE_32BIT_GPRS)
> +    {
> +      if (ex->X_add_number < 0)
> +	ex->X_add_number = ((ex->X_add_number + 0x80000000) & 0xffffffff)
> +			    - 0x80000000;
> +      else
> +	ex->X_add_number &= 0xffffffff;
> +    }

If X_add_number is a 64-bit value, then it doesn't make sense to check
whether it is negative in the 64-bit sense and then try to negate it
in the 32-bit sense.  I think you mean to write
  if ((ex->X_add_number & 0x80000000) != 0)

Ian


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