From: Richard Sandiford <richard.sandiford@arm.com>
To: Richard Biener <richard.guenther@gmail.com>
Cc: David Sherwood <David.Sherwood@arm.com>,
GCC Patches <gcc-patches@gcc.gnu.org>
Subject: Re: [PING][Patch] Add support for IEEE-conformant versions of scalar fmin* and fmax*
Date: Wed, 19 Aug 2015 13:16:00 -0000 [thread overview]
Message-ID: <87twrva0ml.fsf@e105548-lin.cambridge.arm.com> (raw)
In-Reply-To: <CAFiYyc2W82jzYE3saLQkNhhDEH1+BFk0yShrh3OVBdjHkkyr3A@mail.gmail.com> (Richard Biener's message of "Wed, 19 Aug 2015 13:35:02 +0100")
Richard Biener <richard.guenther@gmail.com> writes:
> As an additional point for many math functions we have to support errno
> which means, like, BUILT_IN_SQRT can be rewritten to SQRT_EXPR
> only if -fno-math-errno is in effect. But then code has to handle
> both variants for things like constant folding and expression combining.
> That's very unfortunate and something we want to avoid (one reason
> the POW_EXPR thing didn't fly when I tried). STRICT_FMIN/MAX_EXPR
> is an example where this doesn't apply, of course (but I detest the name,
> just use FMIN/FMAX_EXPR?). Still you'd need to handle both,
> FMIN_EXPR and BUILT_IN_FMIN, in code doing analysis/transform.
Yeah, but match.pd makes that easy, right? ;-)
next prev parent reply other threads:[~2015-08-19 13:06 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-13 10:13 David Sherwood
2015-08-13 11:12 ` Richard Biener
2015-08-17 9:41 ` David Sherwood
2015-08-17 14:02 ` Richard Biener
2015-08-18 11:10 ` David Sherwood
2015-08-18 13:31 ` Richard Biener
2015-08-18 14:20 ` Richard Sandiford
2015-08-19 9:48 ` Richard Biener
2015-08-19 10:04 ` Richard Sandiford
2015-08-19 10:31 ` Richard Biener
2015-08-19 12:23 ` Richard Sandiford
2015-08-19 12:35 ` Richard Biener
2015-08-19 13:16 ` Richard Sandiford [this message]
2015-08-19 13:41 ` Richard Biener
2015-09-14 10:47 ` David Sherwood
2015-09-14 13:42 ` Richard Biener
2015-09-14 20:38 ` Joseph Myers
2015-08-19 15:32 ` Joseph Myers
2015-11-23 9:21 ` David Sherwood
2015-11-25 12:39 ` Richard Biener
2015-08-19 15:07 ` Michael Matz
2015-08-19 15:25 ` Richard Biener
2015-08-19 15:39 ` Richard Sandiford
-- strict thread matches above, loose matches on Subject: below --
2015-08-06 9:39 David Sherwood
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