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[Bug middle-end/28796] __builtin_nan() and __builtin_unordered() inconsistent
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 6 Nov 2006 09:33:28 -0000
- Subject: [Bug middle-end/28796] __builtin_nan() and __builtin_unordered() inconsistent
- References: <bug-28796-13128@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #22 from rguenth at gcc dot gnu dot org 2006-11-06 09:33 -------
Subject: Bug 28796
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=28796