From: Jakub Jelinek <jakub@redhat.com>
To: Andreas Krebbel <krebbel@linux.vnet.ibm.com>
Cc: gcc-patches@gcc.gnu.org
Subject: Re: [Committed] S/390: Disable scalar vector instructions with -mno-vx.
Date: Fri, 20 May 2016 11:09:00 -0000 [thread overview]
Message-ID: <20160520110916.GG28550@tucnak.redhat.com> (raw)
In-Reply-To: <1462871037-16897-1-git-send-email-krebbel@linux.vnet.ibm.com>
On Tue, May 10, 2016 at 11:03:57AM +0200, Andreas Krebbel wrote:
> Although the scalar variants of the vector instructions aren't
> actually vector instructions they are still executed in the vector
> facility and therefore need to be disabled when disabling the facility
> with -mno-vx.
OT, I see that check_vect_support_and_set_flags doesn't have any s390
support, I'd be expecting it to add -mvx and depending on the hw either
use just compile as the default action or run with -mvx. Also, tree-vect.h
probably needs adjustment for z13 etc.
Jakub
prev parent reply other threads:[~2016-05-20 11:09 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-10 9:04 Andreas Krebbel
2016-05-20 11:09 ` Jakub Jelinek [this message]
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