From: Nathan Froyd <froydnj@mozilla.com>
To: Marc Glisse <marc.glisse@inria.fr>
Cc: Richard Guenther <richard.guenther@gmail.com>, gcc-patches@gcc.gnu.org
Subject: Re: ORDERED_EXPR in invert_tree_comparison
Date: Thu, 02 Aug 2012 15:24:00 -0000 [thread overview]
Message-ID: <20120802152205.GE14463@cerebro.indy.rr.com> (raw)
In-Reply-To: <alpine.DEB.2.02.1208021717180.1769@stedding.saclay.inria.fr>
On Thu, Aug 02, 2012 at 05:20:24PM +0200, Marc Glisse wrote:
> On Thu, 2 Aug 2012, Nathan Froyd wrote:
> >> PR tree-optimization/53805
> >> * fold-const.c (invert_tree_comparison): Do invert ORDERED_EXPR and
> >> UNORDERED_EXPR for floating point.
> >
> >Minor protest about the ChangeLog: I think you mean "Do _not_ invert..."
>
> No, I do mean do invert. The point of the patch is that even for
> floating point and even with trapping-math, it is still safe to
> invert them.
Ahhh, yes. I misread the patch.
> Maybe I can reformulate as: "Invert ORDERED_EXPR and UNORDERED_EXPR
> even for trapping floating point." ?
That works for me.
-Nathan
prev parent reply other threads:[~2012-08-02 15:24 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-19 15:52 Marc Glisse
2012-08-01 19:21 ` Marc Glisse
2012-08-02 8:51 ` Richard Guenther
2012-08-02 12:48 ` Marc Glisse
2012-08-02 13:37 ` Richard Guenther
2012-08-02 13:56 ` Nathan Froyd
2012-08-02 15:20 ` Marc Glisse
2012-08-02 15:24 ` Nathan Froyd [this message]
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