From: Szabolcs Nagy <szabolcs.nagy@arm.com>
To: Florian Weimer <fw@deneb.enyo.de>,
Richard Biener <richard.guenther@gmail.com>
Cc: nd@arm.com, Jakub Jelinek <jakub@redhat.com>,
Janne Blomqvist <blomqvist.janne@gmail.com>,
GCC Development <gcc@gcc.gnu.org>,
"fortran@gcc.gnu.org" <fortran@gcc.gnu.org>,
sellcey@cavium.com
Subject: Re: libmvec in gcc to have vector math in fortran
Date: Fri, 15 Jun 2018 08:40:00 -0000 [thread overview]
Message-ID: <11861654-3045-aa2d-8f37-6e5ce71ecbb3@arm.com> (raw)
In-Reply-To: <877en01nvw.fsf@mid.deneb.enyo.de>
On 15/06/18 08:59, Florian Weimer wrote:
> * Richard Biener:
>
>> 'pure' makes it pure but there doesn't seem to be a way to make it const?
>
> Does Fortran support setting the rounding mode?
>
yes, but vec math is only enabled with -ffast-math (so it can
assume -fno-rounding-math)
> In C, sin is not const because it depends on the current rounding
> mode.
>
hm i don't see const in glibc even in case of -ffast-math compilation,
i wonder if that can be changed.
next prev parent reply other threads:[~2018-06-15 8:39 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-10 10:14 Szabolcs Nagy
2018-04-10 10:22 ` Janne Blomqvist
2018-04-10 11:35 ` Szabolcs Nagy
2018-04-10 12:55 ` Jakub Jelinek
2018-04-10 13:26 ` Richard Biener
2018-04-10 13:42 ` Jakub Jelinek
2018-04-10 13:27 ` Richard Biener
2018-04-10 13:35 ` Richard Biener
2018-04-18 8:41 ` Szabolcs Nagy
2018-04-18 8:57 ` Richard Biener
2018-06-14 22:41 ` Richard Biener
2018-06-15 8:39 ` Florian Weimer
2018-06-15 8:40 ` Szabolcs Nagy [this message]
2018-06-15 9:08 ` Richard Biener
2018-06-15 8:41 ` Richard Biener
2018-06-15 9:33 ` Florian Weimer
2018-06-15 11:39 ` Richard Biener
2018-06-15 20:59 ` Thomas Koenig
2018-06-15 22:41 ` Joseph Myers
2018-06-18 11:10 ` Richard Biener
2018-06-18 16:02 ` Joseph Myers
2018-06-18 16:22 ` Richard Biener
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