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From: "ramana at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libfortran/43572] [4.5/4.6 Regression] FAIL: gfortran.dg/PR19872.f execution test; formatted read - wrong numbers
Date: Sat, 10 Apr 2010 08:45:00 -0000 [thread overview]
Message-ID: <20100410084521.15530.qmail@sourceware.org> (raw)
In-Reply-To: <bug-43572-276@http.gcc.gnu.org/bugzilla/>
------- Comment #11 from ramana at gcc dot gnu dot org 2010-04-10 08:45 -------
I can pretty much see this on a v7 arm-linux-gnueabi target with 157994 (i.e.
using a libgfortran from my 4.5 tree, causes this test to fail and using the
system libgfortran things just work).
On this target peeking at the values using gdb . I see that as soon as
gfortran_transfer_array is completed the value in i is this random number.
Don't know enough yet about libgfortran to figure out where the miscompile is
happening. Digging.
GNU gdb (GDB) 7.0.90.20100309-ubuntu
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "arm-linux-gnueabi".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /tmp/a.out...done.
(gdb) b _gfortran_transfer_array
Breakpoint 1 at 0x8508
(gdb) r
Starting program: /tmp/a.out
Breakpoint 1, *_gfortran_transfer_array (dtp=0xbef2ae60, desc=0xbef2afd8,
kind=4, charlen=0) at /home/ramrad01/trunk/libgfortran/io/transfer.c:1863
1863 if ((dtp->common.flags & IOPARM_LIBRETURN_MASK) !=
IOPARM_LIBRETURN_OK)
(gdb) finish
Run till exit from #0 *_gfortran_transfer_array (dtp=0xbef2ae60,
desc=0xbef2afd8, kind=4, charlen=0) at
/home/ramrad01/trunk/libgfortran/io/transfer.c:1863
0x00008878 in MAIN__ () at
/home/ramrad01/trunk/gcc/testsuite/gfortran.dg/PR19872.f:13
13 read(1,*)i
(gdb) p i
$1 = (2147483647, 2147483647, 2147483647, 2147483647)
--
ramana at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Priority|P4 |P3
Last reconfirmed|0000-00-00 00:00:00 |2010-04-10 08:45:21
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43572
next prev parent reply other threads:[~2010-04-10 8:45 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-43572-276@http.gcc.gnu.org/bugzilla/>
2010-03-31 18:08 ` [Bug libfortran/43572] " danglin at gcc dot gnu dot org
2010-04-01 9:41 ` [Bug libfortran/43572] [4.5 Regression] " burnus at gcc dot gnu dot org
2010-04-01 11:26 ` howarth at nitro dot med dot uc dot edu
2010-04-01 11:26 ` howarth at nitro dot med dot uc dot edu
2010-04-01 20:51 ` dave at hiauly1 dot hia dot nrc dot ca
2010-04-01 21:03 ` danglin at gcc dot gnu dot org
2010-04-02 2:58 ` jvdelisle at gcc dot gnu dot org
2010-04-03 17:16 ` rguenth at gcc dot gnu dot org
2010-04-06 11:38 ` rguenth at gcc dot gnu dot org
2010-04-09 20:06 ` [Bug libfortran/43572] [4.5/4.6 " dave at hiauly1 dot hia dot nrc dot ca
2010-04-10 8:45 ` ramana at gcc dot gnu dot org [this message]
2010-04-12 15:50 ` ramana at gcc dot gnu dot org
2010-04-12 16:00 ` rguenth at gcc dot gnu dot org
2010-04-12 16:03 ` dave at hiauly1 dot hia dot nrc dot ca
2010-04-12 17:22 ` ramana at gcc dot gnu dot org
2010-04-15 13:44 ` dave at hiauly1 dot hia dot nrc dot ca
2010-04-15 18:40 ` ramana at gcc dot gnu dot org
2010-04-16 7:47 ` [Bug tree-optimization/43572] " ramana at gcc dot gnu dot org
2010-04-16 8:59 ` rguenth at gcc dot gnu dot org
2010-04-16 10:00 ` rguenth at gcc dot gnu dot org
2010-04-16 10:54 ` rguenth at gcc dot gnu dot org
2010-04-16 13:22 ` rguenth at gcc dot gnu dot org
2010-04-16 15:00 ` [Bug tree-optimization/43572] [4.5 " rguenth at gcc dot gnu dot org
2010-04-19 9:06 ` ramana at gcc dot gnu dot org
2010-04-19 9:13 ` rguenth at gcc dot gnu dot org
2010-04-19 9:14 ` rguenth at gcc dot gnu dot org
2010-04-20 23:34 ` mikpe at it dot uu dot se
2010-04-21 7:52 ` mikpe at it dot uu dot se
2010-04-21 8:48 ` rguenther at suse dot de
2010-04-23 1:24 ` mikpe at it dot uu dot se
2010-04-23 15:47 ` rguenth at gcc dot gnu dot org
2010-04-23 15:48 ` rguenth at gcc dot gnu dot org
2010-04-26 23:47 ` pinskia at gcc dot gnu dot org
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