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Re: alpha return address patch
- To: jason at cygnus dot com (Jason Merrill)
- Subject: Re: alpha return address patch
- From: Richard Henderson <rth at cygnus dot com>
- Date: Thu, 11 Sep 1997 17:17:15 -0700 (PDT)
- Cc: egcs at cygnus dot com
- Reply-To: rth at cygnus dot com (Richard Henderson)
> I don't think using RETURN_ADDR_RTX should force the return address into
> the stack; the current code should be able to handle having the return
> address in a register just fine.
Except that it is very difficult to handle writing to that value
and having it be seen by the epilogue.
If you can suggest, perhaps, a way to do elimination such that
one way we have a (mem (plus (reg FP) (const ofs))) and the
other a (reg RA), I'd be delighted to use it.
r~