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Re: Why does the athlon_fp DFA have so many states?
- From: "Naveen Sharma, Noida" <naveens at noida dot hcltech dot com>
- To: Ranjit Mathew <rmathew at hotmail dot com>
- Cc: gcc at gcc dot gnu dot org
- Date: Fri, 7 Nov 2003 15:01:47 +0530
- Subject: Re: Why does the athlon_fp DFA have so many states?
> While compiling mainline/3.3 on i686-pc-linux-gnu
> I have always noted that the DFA for athlon_fp has the
> maximum number of asterisks ('*').
I have sometimes noticed system going out of virtual
memory while processing athlon DFA description.
Complex pipelines lead to a large number of DFA states.
Athlon's pipeline seems complex at first glance. (though
I am not very familiar with athlon internals.)
It might help, if it is possible to do some more automaton
factoring for athlon. But thats just a guess.
Best Regards,
Naveen Sharma.