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From: "ghazi at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/30652] SSE expansion is missing for isinf() and other fpclassify functions
Date: Sat, 16 Jun 2007 03:44:00 -0000 [thread overview]
Message-ID: <20070616034412.13093.qmail@sourceware.org> (raw)
In-Reply-To: <bug-30652-1649@http.gcc.gnu.org/bugzilla/>
------- Comment #5 from ghazi at gcc dot gnu dot org 2007-06-16 03:44 -------
(In reply to comment #2)
> The generic implementation, including for SSE, is
> isgreater (abs(f), FLT_MAX)
> For isfinite, use islessequal instead. For isnan, one can use
> isunordered(f, f)
> For isnormal, it'd be
> isgreaterequal(abs(f), FLT_MIN) & islessequal(abs(f), FLT_MAX)
> which is less likely to be friendly to inline.
Generic isinf implementation here:
http://gcc.gnu.org/ml/gcc-patches/2007-06/msg01103.html
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30652
next prev parent reply other threads:[~2007-06-16 3:44 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-31 12:39 [Bug target/30652] New: " ubizjak at gmail dot com
2007-01-31 12:57 ` [Bug target/30652] " rguenth at gcc dot gnu dot org
2007-02-01 0:28 ` rth at gcc dot gnu dot org
2007-02-01 8:16 ` ubizjak at gmail dot com
2007-06-13 15:57 ` ghazi at gcc dot gnu dot org
2007-06-16 3:44 ` ghazi at gcc dot gnu dot org [this message]
2007-07-18 17:31 ` ghazi at gcc dot gnu dot org
2007-07-18 17:42 ` ghazi at gcc dot gnu dot org
2007-07-18 17:51 ` ghazi at gcc dot gnu dot org
2007-07-18 18:01 ` ghazi at gcc dot gnu dot org
2008-03-14 16:46 ` rguenth at gcc dot gnu dot org
2008-06-07 4:03 ` ghazi at gcc dot gnu dot org
2009-11-22 17:58 ` ghazi at gcc dot gnu dot org
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