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From: "dominiq at lps dot ens.fr" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/53342] [4.8 Regression] rnflow.f90 is ~5% slower after revision 187340
Date: Tue, 05 Feb 2013 13:36:00 -0000 [thread overview]
Message-ID: <bug-53342-4-awGxZjZrrP@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-53342-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53342
--- Comment #11 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2013-02-05 13:35:51 UTC ---
After an incremental update of r195753 with the patch in comment #10, compiling
rnflow.f90 with '-O3 -ffast-math -funroll-loops' gives an executable which
segfault.
0: 0: 0.135 -> Read sequence
0: 0:42.259 -> extract extrema
0: 0:42.361 -> Generate raw transitions counts
0: 0:42.566 -> Compute Markov matrix
0: 0:42.595 -> Calculate theoretical rainflow
==6222== Invalid read of size 4
==6222== at 0x10001E9FF: evlrnf_ (rnflow.f90:2703)
==6222== by 0xFFFFFFFFFFFFFF15: ???
==6222== by 0x10166D0CB: __strtodg (in /usr/lib/libSystem.B.dylib)
==6222== by 0xE4: ???
==6222== Address 0x507d4c030 is not stack'd, malloc'd or (recently) free'd
==6222==
==6222==
==6222== Process terminating with default action of signal 11 (SIGSEGV)
==6222== General Protection Fault
==6222== at 0x10170EFC1: dyld_stub_binder (in /usr/lib/libSystem.B.dylib)
==6222== by 0x1015AC02F: ??? (in /opt/gcc/gcc4.8w/lib/libgfortran.3.dylib)
==6222== by 0xE64: ???
==6222== by 0x10149AE8A: _gfortrani_st_vprintf (in
/opt/gcc/gcc4.8w/lib/libgfortran.3.dylib)
If needed, I'll do a clean bootstrap later this afternoon.
next prev parent reply other threads:[~2013-02-05 13:36 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-14 11:43 [Bug tree-optimization/53342] New: " dominiq at lps dot ens.fr
2012-05-14 11:49 ` [Bug tree-optimization/53342] " rguenth at gcc dot gnu.org
2012-05-14 12:33 ` matz at gcc dot gnu.org
2012-09-07 11:51 ` rguenth at gcc dot gnu.org
2012-11-13 18:46 ` ubizjak at gmail dot com
2012-12-10 12:11 ` jakub at gcc dot gnu.org
2012-12-10 12:26 ` rguenther at suse dot de
2013-01-11 11:53 ` jakub at gcc dot gnu.org
2013-01-14 15:56 ` matz at gcc dot gnu.org
2013-01-14 16:45 ` jakub at gcc dot gnu.org
2013-02-05 12:12 ` rguenth at gcc dot gnu.org
2013-02-05 13:08 ` rguenth at gcc dot gnu.org
2013-02-05 13:36 ` dominiq at lps dot ens.fr [this message]
2013-02-05 13:52 ` rguenth at gcc dot gnu.org
2013-02-05 15:34 ` rguenth at gcc dot gnu.org
2013-02-05 15:36 ` rguenth at gcc dot gnu.org
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