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Re: CFG-branch merge (Was: Re: DFA scheduler merge - approval issues?)
- From: Jan Hubicka <jh at suse dot cz>
- To: David Edelsohn <dje at watson dot ibm dot com>
- Cc: Jan Hubicka <jh at suse dot cz>, Geoff Keating <geoffk at geoffk dot org>,tm <tm at mail dot kloo dot net>, gcc at gcc dot gnu dot org, vmakarov at cygnus dot com,rth at cygnus dot com
- Date: Fri, 12 Apr 2002 10:48:10 +0200
- Subject: Re: CFG-branch merge (Was: Re: DFA scheduler merge - approval issues?)
- References: <20020411205957.GG25962@atrey.karlin.mff.cuni.cz> <200204120319.XAA24362@makai.watson.ibm.com>
> This sounds great!
>
> We need to start figuring out how we are going to schedule merging
> the various new technology branches into the trunk.
>
> As far as the PowerPC patch, I was just about to start
> experimenting with a patch that separates the SVR4 call_operand predicate
> from an AIX symbol_ref_operand predicate.
Thanks.
The post-reload duplication code does not copy the recog cache making such
crashes to happen (I am surprised that we do have patterns not matching anymore
after reload).
I will add code to copy the cache as it saves bit of runtime, but I would
also like to add sanity check to verify_insn_chain checking that cache match
what recog really returns making such fixes necesary.
Honza
>
> Thanks, David