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Re: how to change register allocation order
- To: "zhang tao" <warmice at sina dot com>
- Subject: Re: how to change register allocation order
- From: Alexandre Oliva <aoliva at redhat dot com>
- Date: 26 May 2001 05:09:07 -0300
- Cc: <gcc at gcc dot gnu dot org>
- Organization: GCC Team, Red Hat
- References: <003801c0e52f$9b29b7c0$1d0d6aca@zhangtao>
On May 25, 2001, "zhang tao" <warmice@sina.com> wrote:
> I found although I changed the MACRO REG_ALLOC_ORDER, there is no
> effect at all.
Well, that's the macro you should be changing to modify register
allocation order. Perhaps you've got multiple register classes, and
one is taking precedence because of register preferences in patterns?
This would prevail over REG_ALLOC_ORDER.
--
Alexandre Oliva Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp oliva@{lsd.ic.unicamp.br, gnu.org}
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