This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: Saga of m68k PIC continues
>> Note the removal of the (const ... ) in insn 11.
>>
>> Any ideas where this is being stripped off?
>
>GCC will happily put in the subreg when your machine description accept
>it.
I don't see how subregs take care of -fPIC and (unspec ...). Could
you explain?
>There are hooks defining valid addresses and constants and these
>must refuse invalid stuff, like (symbol_ref:SI ("foo") is for PIC.
Do you mean that GO_IF_LEGITIMATE_ADDRESS needs to reject a raw
(symbol_ref:SI ("foo")) if in pic mode, which would then force the
addr to be pushed through LEGITIMIZE_ADDRESS(I think) where it would
spot the raw symbol_ref in pic mode and by wrap it in a (const
(uspec:SI [...] 3))?
--
Peter Barada Peter.Barada@motorola.com
Wizard 781-852-2768 (direct)
WaveMark Solutions(wholly owned by Motorola) 781-270-0193 (fax)