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Re: [dfa-branch] DFA pipeline description for SH4
- From: Vladimir Makarov <vmakarov at redhat dot com>
- To: David Edelsohn <dje at watson dot ibm dot com>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Mon, 09 Dec 2002 09:59:31 -0500
- Subject: Re: [dfa-branch] DFA pipeline description for SH4
- References: <3C55ED07.22D10FA1@redhat.com> <200212090258.VAA30938@makai.watson.ibm.com>
David Edelsohn wrote:
>
> > [RCSP] is based on the DFA pipeline hazard recognizer. Although the
> > current implementation is slow and quite constrained (it can not move
> > dangerous insns through iterations and has no dependency analysis), it
> > should solve the problem. I am going to commit it into the branch after
> > moving the dfa-based scheduler into the main trunk.
>
> Is the current RCSP implementation in the dfa-branch?
>
No. RCSP is completely broken for the current gcc. When I fix it, I'll
place it on a branch. I don't know when it will happen. The most
probably it will be only in Jan.
Vlad