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Re: IRA improvements 1/4
- From: Bernd Schmidt <bernds at codesourcery dot com>
- To: Vladimir Makarov <vmakarov at redhat dot com>
- Cc: gcc-patches <gcc-patches at gcc dot gnu dot org>, Jeffrey Law <law at redhat dot com>
- Date: Wed, 07 Jul 2010 22:26:22 +0200
- Subject: Re: IRA improvements 1/4
- References: <4C34819D.2050903@redhat.com>
On 07/07/2010 03:31 PM, Vladimir Makarov wrote:
> The patch removes -fira-coalesce because it is really hard to
> implement it with the new dynamically calculated allocno classes.
> The patch uses also new spilling algorithms because of the same reason.
> Removing -fira-coalesce is not a big deal because it is not used and
> its most functionality is implemented by IRA preferencing technique.
coalesce_allocnos is still present. Is this only used for sharing stack
slots now?
Bernd