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Re: Using SCRATCH Register for a mov op,
- From: Richard Henderson <rth at redhat dot com>
- To: Pierre Mallard <pierremallard at yahoo dot fr>
- Cc: gcc at gcc dot gnu dot org, gcc-patches at gcc dot gnu dot org
- Date: Thu, 31 Oct 2002 17:06:49 -0800
- Subject: Re: Using SCRATCH Register for a mov op,
- References: <20021030164557.71770.qmail@web20301.mail.yahoo.com>
On Wed, Oct 30, 2002 at 05:45:57PM +0100, Pierre Mallard wrote:
> I'd like to use scratch reg for operation such as
> reg X = mem(reg X) generated during the RELOAD PASS.
> with X a number of a hard reg same for both side of
> expression
You'll have to use a PARALLEL with a (clobber (match_scratch)).
r~