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Re: fix opt/7124
- From: Jan Hubicka <jh at suse dot cz>
- To: Richard Henderson <rth at redhat dot com>, gcc-patches at gcc dot gnu dot org
- Date: Thu, 3 Oct 2002 14:38:46 +0200
- Subject: Re: fix opt/7124
- References: <20021002203723.GA454@redhat.com>
> Moving "between" MMX and FP registers isn't a good idea.
> Severely disparage the notion.
>
>
> r~
>
>
> * config/i386/i386.c (ix86_register_move_cost): Increase cost
> for secondary_memory_needed pairs.
Thanks. I have fix for the same bug prepared, but my one fixes the
register move costs that are based on guesses before AMD released the
documentation and not very accurate. I will send that patch too once
benchmarking completes.
It should close several of other PRs, I will check it.
Honza