[RFC] patch to fix an ICE involving sign-extract of mmx expression

[Richard Henderson]

On Thu, Sep 22, 2005 at 01:21:06PM -0700, Fariborz Jahanian wrote:
>                   /* Avoid creating invalid subregs, for example when
>                      simplifying (x>>32)&255.  */
> !                 if (final_word >= GET_MODE_SIZE (inner_mode)
> !                     || (final_word % GET_MODE_SIZE (tmode)) != 0)
>                     return NULL_RTX;

I think you should just call validate_subreg.  Ok with that change.


r~