This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: How to use a fast scratchpad-RAM for fill/spill ?
- From: Greg McGary <greg at mcgary dot org>
- To: Daniel Jacobowitz <drow at false dot org>
- Cc: gcc at gcc dot gnu dot org, greg at mcgary dot org
- Date: 11 May 2005 11:58:39 -0700
- Subject: Re: How to use a fast scratchpad-RAM for fill/spill ?
- References: <mszmv1lilk.fsf@mcgary.org> <20050511183452.GA9542@nevyn.them.org>
Daniel Jacobowitz <drow@false.org> writes:
> ... Or you could try telling the entire compiler to treat them as
> registers, instead of just reload. That's likely to work as well or
> better.
So, I define these as a separate register class, and only the movM
insn patterns get constraints that match them, right? Anything else?
Should I tack them onto the end of REG_ALLOC_ORDER, or leave them
off?
Greg