This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: Set RTX_UNCHANGING is readonly_field_p when clearing
- From: Mark Mitchell <mark at codesourcery dot com>
- To: Richard Kenner <kenner at vlsi1 dot ultra dot nyu dot edu>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: 21 Apr 2003 14:51:00 -0700
- Subject: Re: Set RTX_UNCHANGING is readonly_field_p when clearing
- References: <10304212146.AA02491@vlsi1.ultra.nyu.edu>
On Mon, 2003-04-21 at 14:46, Richard Kenner wrote:
> You stated a rule, involving distinctions between loads and stores. If
> that's presently the rule, update the docs to say so. If that won't
> always be the rule say "this might change if we fix some bugs."
>
> That "rule" does not affect the definition of RTX_UNCHANGING_P. Rather, it
> says whether or not the bit has to be set for a given reference if that
> reference is to a aggregate object in order to meet the conditions for the
> bit, as properly documented.
There is nothing wrong with the manual explaining how to get the bit set
correctly.
So, add the information.
--
Mark Mitchell
CodeSourcery, LLC
mark at codesourcery dot com