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From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/19116] -funsafe-math-optimizations make nan compares equal to one another (-finite-math-only should be doing that)
Date: Mon, 06 Nov 2006 09:33:00 -0000 [thread overview]
Message-ID: <20061106093328.31457.qmail@sourceware.org> (raw)
In-Reply-To: <bug-19116-9515@http.gcc.gnu.org/bugzilla/>
------- Comment #18 from rguenth at gcc dot gnu dot org 2006-11-06 09:33 -------
Subject: Bug 19116
Author: rguenth
Date: Mon Nov 6 09:33:16 2006
New Revision: 118517
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=118517
Log:
2006-11-06 Richard Guenther <rguenther@suse.de>
Backport from mainline:
2006-10-21 Richard Guenther <rguenther@suse.de>
PR target/19116
* config/i386/i386.c (override_options): Do not set MASK_IEEE_FP
if flag_unsafe_math_optimizations is specified. We have
flag_finite_math_only for that.
* config/i386/i386.md (sqrtxf2): Do not require TARGET_IEEE_FP
or flag_unsafe_math_optimizations.
PR middle-end/28796
* simplify-rtx.c (simplify_const_relational_operation):
Do not constant-fold ORDERED and UNORDERED for
flag_unsafe_math_optimizations but only we do not need to
honor NaNs for the given mode.
Modified:
branches/gcc-4_2-branch/gcc/ChangeLog
branches/gcc-4_2-branch/gcc/config/i386/i386.c
branches/gcc-4_2-branch/gcc/config/i386/i386.md
branches/gcc-4_2-branch/gcc/simplify-rtx.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19116
next prev parent reply other threads:[~2006-11-06 9:33 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-19116-9515@http.gcc.gnu.org/bugzilla/>
2006-08-25 9:01 ` rguenth at gcc dot gnu dot org
2006-10-21 10:41 ` rguenth at gcc dot gnu dot org
2006-10-21 10:42 ` rguenth at gcc dot gnu dot org
2006-11-03 22:35 ` pinskia at gcc dot gnu dot org
2006-11-04 10:54 ` ubizjak at gmail dot com
2006-11-04 13:30 ` rguenth at gcc dot gnu dot org
2006-11-04 16:27 ` james dot me at gmail dot com
2006-11-04 16:32 ` rguenth at gcc dot gnu dot org
2006-11-06 9:33 ` rguenth at gcc dot gnu dot org [this message]
2006-11-06 9:34 ` rguenth at gcc dot gnu dot org
2004-12-21 20:36 [Bug driver/19116] New: -fno-finite-math-only does not override -ffast-math Thomas dot Koenig at online dot de
2004-12-27 14:00 ` [Bug target/19116] -funsafe-math-optimizations make nan compares equal to one another (-finite-math-only should be doing that) pinskia at gcc dot gnu dot org
2005-01-17 13:42 ` hunor at cs dot bme dot hu
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