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From: "zsojka at seznam dot cz" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/41862] [4.5 Regression] -fgcse-sm causes bootstrap comparison failures
Date: Thu, 24 Dec 2009 20:24:00 -0000 [thread overview]
Message-ID: <20091224202412.2589.qmail@sourceware.org> (raw)
In-Reply-To: <bug-41862-14164@http.gcc.gnu.org/bugzilla/>
------- Comment #9 from zsojka at seznam dot cz 2009-12-24 20:24 -------
Thank you for commiting that patch. I am also receiving bootstrap comparison
failures at x86_64 (r155455, -O2 -fgcse-sm):
gcc/double-int.o differs
libcpp/expr.o differs
r155434 without -fgcse-sm bootstraps fine (I didn't test r155455 without
-fgcse-sm, yet)
When I applied patch from comment #2 (it does the same as the commited patch)
to r153685, it bootstraped fine as well.
There are (used to be?) "random" cfgloopmanip.o comparison failures appearing
when building from gentoo's sources (not vanilla, so I didn't report it, and I
wasn't able to reproduce it) (those sources are weekly snapshots - some
snapshots managed to compile, some didn't).
I hope this information can be in some way useful.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41862
next prev parent reply other threads:[~2009-12-24 20:24 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-29 0:03 [Bug rtl-optimization/41862] New: valgrind warns about using uninitialized variable with -fgcse-sm zsojka at seznam dot cz
2009-10-29 0:04 ` [Bug rtl-optimization/41862] " zsojka at seznam dot cz
2009-10-29 0:06 ` zsojka at seznam dot cz
2009-10-29 10:25 ` rguenth at gcc dot gnu dot org
2009-10-29 10:58 ` steven at gcc dot gnu dot org
2009-11-17 18:34 ` zsojka at seznam dot cz
2009-11-25 10:45 ` zsojka at seznam dot cz
2009-11-27 11:23 ` [Bug rtl-optimization/41862] [4.5 Regression] -fgcse-sm causes bootstrap comparison failures zsojka at seznam dot cz
2009-12-04 14:25 ` rguenth at gcc dot gnu dot org
2009-12-24 13:12 ` steven at gcc dot gnu dot org
2009-12-24 20:24 ` zsojka at seznam dot cz [this message]
2009-12-24 20:35 ` zsojka at seznam dot cz
2010-01-02 15:57 ` rguenth at gcc dot gnu dot org
2010-01-03 17:15 ` steven at gcc dot gnu dot org
2010-01-03 17:23 ` steven at gcc dot gnu dot org
2010-01-03 18:25 ` rguenth at gcc dot gnu dot org
2010-01-03 20:03 ` [Bug rtl-optimization/41862] [4.5 Regression] -fgcse-sm causes bootstrap-debug " steven at gcc dot gnu dot org
2010-01-03 22:33 ` rguenth at gcc dot gnu dot org
2010-01-03 22:42 ` steven at gcc dot gnu dot org
2010-01-03 22:46 ` steven at gcc dot gnu dot org
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