From: Joseph Myers <joseph@codesourcery.com>
To: Ulrich Weigand <uweigand@de.ibm.com>
Cc: Richard Biener <richard.guenther@gmail.com>,
GCC Patches <gcc-patches@gcc.gnu.org>
Subject: Re: [PATCH] Fix -ffast-math flags handling inconsistencies
Date: Fri, 07 Feb 2020 22:55:00 -0000 [thread overview]
Message-ID: <alpine.DEB.2.21.2002072252130.3924@digraph.polyomino.org.uk> (raw)
In-Reply-To: <20200207164732.24E0DD802A9@oc3748833570.ibm.com>
On Fri, 7 Feb 2020, Ulrich Weigand wrote:
> I thought that a *more specific* option like -fsignalling-nans was always
> intended to override a more generic option like -ffast-math, no matter
> whether it comes before or after it on the command line.
Yes, that's correct. (There are cases where it's ambiguous which option
is more specific - see what I said in
<https://gcc.gnu.org/ml/gcc/2016-03/msg00245.html> about -Werror= - but I
don't think -ffast-math involves such cases.)
--
Joseph S. Myers
joseph@codesourcery.com
next prev parent reply other threads:[~2020-02-07 22:55 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-31 17:47 Ulrich Weigand
2020-02-05 9:58 ` Richard Biener
2020-02-07 16:47 ` Ulrich Weigand
2020-02-07 22:55 ` Joseph Myers [this message]
2020-02-10 16:24 ` Ulrich Weigand
2020-02-10 23:07 ` Joseph Myers
2020-02-11 12:47 ` Ulrich Weigand
2020-02-08 2:52 ` Segher Boessenkool
2020-02-10 16:27 ` Ulrich Weigand
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