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From: "siarhei dot siamashka at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/43698] [4.5/4.6 Regression] Invalid code when building gentoo pax-utils-0.1.19 with -Os optimizations
Date: Mon, 12 Apr 2010 09:34:00 -0000 [thread overview]
Message-ID: <20100412093411.511.qmail@sourceware.org> (raw)
In-Reply-To: <bug-43698-14457@http.gcc.gnu.org/bugzilla/>
------- Comment #8 from siarhei dot siamashka at gmail dot com 2010-04-12 09:34 -------
(In reply to comment #7)
> Patch submitted here.
>
> http://gcc.gnu.org/ml/gcc-patches/2010-04/msg00401.html
Thank you. I have been testing it for two days already.
It really helps (in the sense that it is apparently better to have this fix
than not to have). I have bootstrapped the hard vfp system successfully and did
not notice any other problems so far. Btw, miscompilation (of all the same
package) also happens with -O2 optimization settings in some other place, but I
did not try to investigate where exactly it fails.
But I understand that it is just a workaround for the problem which happens
somewhere in the upper layer? If REV instruction did not actually support
conditional execution, then the fix would require actually finding the real
cause.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43698
next prev parent reply other threads:[~2010-04-12 9:34 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-09 0:05 [Bug c/43698] New: " siarhei dot siamashka at gmail dot com
2010-04-09 5:49 ` [Bug target/43698] " mikpe at it dot uu dot se
2010-04-09 6:57 ` mikpe at it dot uu dot se
2010-04-09 7:02 ` ramana at gcc dot gnu dot org
2010-04-09 7:38 ` ramana at gcc dot gnu dot org
2010-04-09 7:49 ` ramana at gcc dot gnu dot org
2010-04-09 8:05 ` siarhei dot siamashka at gmail dot com
2010-04-09 8:42 ` [Bug target/43698] [4.5/4.6 Regression] " rguenth at gcc dot gnu dot org
2010-04-12 8:38 ` ramana at gcc dot gnu dot org
2010-04-12 9:34 ` siarhei dot siamashka at gmail dot com [this message]
2010-04-12 9:51 ` Ramana Radhakrishnan
2010-04-12 9:51 ` ramana dot radhakrishnan at arm dot com
2010-05-17 18:48 ` siarhei dot siamashka at gmail dot com
2010-05-19 12:25 ` rguenth at gcc dot gnu dot org
2010-07-03 16:06 ` armin76 at gentoo dot org
2010-07-19 13:54 ` [Bug target/43698] [4.5/4.6 Regression] Wrong use of ARMv6 REV instruction for endian bytewapping with -Os or -O2 optimizations siarhei dot siamashka at gmail dot com
2010-07-22 8:31 ` ramana at gcc dot gnu dot org
2010-07-22 20:54 ` siarhei dot siamashka at gmail dot com
2010-07-23 12:22 ` ramana at gcc dot gnu dot org
2010-07-23 12:28 ` rguenther at suse dot de
2010-07-30 22:36 ` ramana at gcc dot gnu dot org
2010-07-30 22:39 ` ramana at gcc dot gnu dot org
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