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Re: vector operations and scalar operands
- From: Michael Matz <matz at suse dot de>
- To: Jan Hubicka <jh at suse dot cz>
- Cc: <gcc at gcc dot gnu dot org>, <rth at cygnus dot com>
- Date: Sun, 9 Feb 2003 19:57:07 +0100 (CET)
- Subject: Re: vector operations and scalar operands
Hi,
On Sun, 9 Feb 2003, Jan Hubicka wrote:
> So the question is whether we want to allow scalar operand for shift or
> whether I should add vec_duplicate expressions to the patterns.
> The second would lead to pretty wide modes - up to V16TI. Would this
> hurt something?
At least the new RA, which currently only supports modes which are not
wider than 64 bytes (not bits!). Currently there are no modes wider than
that. But V16TI would be 16*16 == 256 bytes.
Ciao,
Michael.