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Re: new-new-ra thoughts
- From: Eric Botcazou <ebotcazou at libertysurf dot fr>
- To: James E Wilson <wilson at specifixinc dot com>
- Cc: gcc at gcc dot gnu dot org,Nathanael Nerode <neroden at fastmail dot fm>
- Date: Wed, 12 Jan 2005 09:56:59 +0100
- Subject: Re: new-new-ra thoughts
- References: <20050105034950.GA3340@fastmail.fm> <41E46D9E.6050305@specifixinc.com>
> b) Extracting a non-low part subset of a word sized of smaller register.
> This is poorly supported and probably doesn't work in most places. It
> wasn't even possible to express this until subregs were changed to use
> byte offsets instead of word offsets. This probably doesn't occur much
> if at all in practice.
This is supposed to be verboten now, after RTH's series of patches.
--
Eric Botcazou