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Re: [doc patch] clarify what can appear in SET_DEST
- From: Richard Henderson <rth at redhat dot com>
- To: Steven Bosscher <stevenb at suse dot de>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Mon, 3 Jan 2005 16:35:21 -0800
- Subject: Re: [doc patch] clarify what can appear in SET_DEST
- References: <200501040019.11352.stevenb@suse.de>
On Tue, Jan 04, 2005 at 12:19:11AM +0100, Steven Bosscher wrote:
> +If @var{lval} is a @code{strict_low_part} of a subreg, or a
> +@code{zero_extract}, then the part of the register specified by the
> machine mode of the @code{subreg} is given the value @var{x} and
> +the rest of the register is not changed.
Not quite. There's no subreg involved in zero_extract, so it
doesn't make sense to say that the bits outside of it are unchanged.
Probably needs to be split into two independent sentences.
r~