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* [Bug debug/47794] New: [4.6 Regression] New debug failures
@ 2011-02-18  2:25 hjl.tools at gmail dot com
  2011-02-18  2:56 ` [Bug debug/47794] " joseph at codesourcery dot com
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: hjl.tools at gmail dot com @ 2011-02-18  2:25 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47794

           Summary: [4.6 Regression] New debug failures
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: debug
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: hjl.tools@gmail.com
                CC: jsm28@gcc.gnu.org


On Linux/ia32, revision 170259:

http://gcc.gnu.org/ml/gcc-cvs/2011-02/msg00804.html

caused:

FAIL: gcc.dg/guality/vla-1.c  -O0  line 17 sizeof (a) == 6
FAIL: gcc.dg/guality/vla-1.c  -O0  line 17 sizeof (a) == 6
FAIL: gcc.dg/guality/vla-1.c  -O0  line 24 sizeof (a) == 17 * sizeof (short)
FAIL: gcc.dg/guality/vla-1.c  -O0  line 24 sizeof (a) == 17 * sizeof (short)
FAIL: gcc.dg/guality/vla-1.c  -O1  line 24 sizeof (a) == 17 * sizeof (short)
FAIL: gcc.dg/guality/vla-1.c  -O1  line 24 sizeof (a) == 17 * sizeof (short)
FAIL: gcc.dg/guality/vla-1.c  -O2  line 24 sizeof (a) == 17 * sizeof (short)
FAIL: gcc.dg/guality/vla-1.c  -O2  line 24 sizeof (a) == 17 * sizeof (short)
FAIL: gcc.dg/guality/vla-1.c  -O3 -fomit-frame-pointer  line 24 sizeof (a) ==
17 * sizeof (short)
FAIL: gcc.dg/guality/vla-1.c  -O3 -fomit-frame-pointer  line 24 sizeof (a) ==
17 * sizeof (short)
FAIL: gcc.dg/guality/vla-1.c  -O3 -g  line 24 sizeof (a) == 17 * sizeof (short)
FAIL: gcc.dg/guality/vla-1.c  -O3 -g  line 24 sizeof (a) == 17 * sizeof (short)
FAIL: gcc.dg/guality/vla-1.c  -Os  line 24 sizeof (a) == 17 * sizeof (short)
FAIL: gcc.dg/guality/vla-1.c  -Os  line 24 sizeof (a) == 17 * sizeof (short)
FAIL: gcc.dg/guality/vla-2.c  -O0  line 16 sizeof (a) == 5 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -O0  line 16 sizeof (a) == 5 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -O0  line 25 sizeof (a) == 6 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -O0  line 25 sizeof (a) == 6 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -O1  line 16 sizeof (a) == 5 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -O1  line 16 sizeof (a) == 5 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -O1  line 25 sizeof (a) == 6 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -O1  line 25 sizeof (a) == 6 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -O2  line 16 sizeof (a) == 5 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -O2  line 16 sizeof (a) == 5 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -O2  line 25 sizeof (a) == 6 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -O2  line 25 sizeof (a) == 6 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -O3 -fomit-frame-pointer  line 16 sizeof (a) == 5
* sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -O3 -fomit-frame-pointer  line 16 sizeof (a) == 5
* sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -O3 -fomit-frame-pointer  line 25 sizeof (a) == 6
* sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -O3 -fomit-frame-pointer  line 25 sizeof (a) == 6
* sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -O3 -g  line 16 sizeof (a) == 5 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -O3 -g  line 16 sizeof (a) == 5 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -O3 -g  line 25 sizeof (a) == 6 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -O3 -g  line 25 sizeof (a) == 6 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -Os  line 16 sizeof (a) == 5 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -Os  line 16 sizeof (a) == 5 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -Os  line 25 sizeof (a) == 6 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -Os  line 25 sizeof (a) == 6 * sizeof (int)


^ permalink raw reply	[flat|nested] 5+ messages in thread
* [Bug debug/47794] [4.6 Regression] New debug failures
  2011-02-18  2:25 [Bug debug/47794] New: [4.6 Regression] New debug failures hjl.tools at gmail dot com
@ 2011-02-18  2:56 ` joseph at codesourcery dot com
  2011-02-18  8:49 ` jakub at gcc dot gnu.org
                   ` (2 subsequent siblings)
  3 siblings, 0 replies; 5+ messages in thread
From: joseph at codesourcery dot com @ 2011-02-18  2:56 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47794

--- Comment #1 from joseph at codesourcery dot com <joseph at codesourcery dot com> 2011-02-18 02:24:58 UTC ---
This commit should not affect anything not using -Ofast, and I get 
identical before/after code with -m32 when I tested vla-1.c.  Could you 
give example source and cc1 options that generate different code 
before/after for you (and provide the resulting before/after .s files)?  
Otherwise I suspect some nondeterminism in GDB.


^ permalink raw reply	[flat|nested] 5+ messages in thread
* [Bug debug/47794] [4.6 Regression] New debug failures
  2011-02-18  2:25 [Bug debug/47794] New: [4.6 Regression] New debug failures hjl.tools at gmail dot com
  2011-02-18  2:56 ` [Bug debug/47794] " joseph at codesourcery dot com
@ 2011-02-18  8:49 ` jakub at gcc dot gnu.org
  2011-02-18 17:43 ` hjl.tools at gmail dot com
  2011-02-23 10:30 ` jakub at gcc dot gnu.org
  3 siblings, 0 replies; 5+ messages in thread
From: jakub at gcc dot gnu.org @ 2011-02-18  8:49 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47794

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |jakub at gcc dot gnu.org
         Resolution|                            |WORKSFORME

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-02-18 07:55:13 UTC ---
Can't reproduce, on both Fedora 13 and Fedora 14, the only vla* failures I get
before and after this commit are:
FAIL: gcc.dg/guality/vla-1.c  -O1  line 17 sizeof (a) == 6
FAIL: gcc.dg/guality/vla-1.c  -O2  line 17 sizeof (a) == 6
FAIL: gcc.dg/guality/vla-1.c  -O3 -fomit-frame-pointer  line 17 sizeof (a) == 6
FAIL: gcc.dg/guality/vla-1.c  -O3 -g  line 17 sizeof (a) == 6
FAIL: gcc.dg/guality/vla-1.c  -Os  line 17 sizeof (a) == 6
FAIL: gcc.dg/guality/vla-1.c  -O2 -flto -flto-partition=none  line 17 sizeof
(a) == 6
FAIL: gcc.dg/guality/vla-1.c  -O2 -flto -flto-partition=none  line 24 sizeof
(a) == 17 * sizeof (short)
FAIL: gcc.dg/guality/vla-1.c  -O2 -flto  line 17 sizeof (a) == 6
FAIL: gcc.dg/guality/vla-1.c  -O2 -flto  line 24 sizeof (a) == 17 * sizeof
(short)
FAIL: gcc.dg/guality/vla-2.c  -O2 -flto -flto-partition=none  line 16 sizeof
(a) == 5 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -O2 -flto -flto-partition=none  line 25 sizeof
(a) == 6 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -O2 -flto  line 16 sizeof (a) == 5 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c  -O2 -flto  line 25 sizeof (a) == 6 * sizeof (int)

for -m64 and none for -m32.


^ permalink raw reply	[flat|nested] 5+ messages in thread
* [Bug debug/47794] [4.6 Regression] New debug failures
  2011-02-18  2:25 [Bug debug/47794] New: [4.6 Regression] New debug failures hjl.tools at gmail dot com
  2011-02-18  2:56 ` [Bug debug/47794] " joseph at codesourcery dot com
  2011-02-18  8:49 ` jakub at gcc dot gnu.org
@ 2011-02-18 17:43 ` hjl.tools at gmail dot com
  2011-02-23 10:30 ` jakub at gcc dot gnu.org
  3 siblings, 0 replies; 5+ messages in thread
From: hjl.tools at gmail dot com @ 2011-02-18 17:43 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47794

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |UNCONFIRMED
         Resolution|WORKSFORME                  |

--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> 2011-02-18 17:38:15 UTC ---
It is a GDB issue.  I installed GDB trunk by accident.


^ permalink raw reply	[flat|nested] 5+ messages in thread
* [Bug debug/47794] [4.6 Regression] New debug failures
  2011-02-18  2:25 [Bug debug/47794] New: [4.6 Regression] New debug failures hjl.tools at gmail dot com
                   ` (2 preceding siblings ...)
  2011-02-18 17:43 ` hjl.tools at gmail dot com
@ 2011-02-23 10:30 ` jakub at gcc dot gnu.org
  3 siblings, 0 replies; 5+ messages in thread
From: jakub at gcc dot gnu.org @ 2011-02-23 10:30 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47794

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-02-23 09:25:52 UTC ---
Not a gcc bug then...


^ permalink raw reply	[flat|nested] 5+ messages in thread
end of thread, other threads:[~2011-02-23  9:26 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2011-02-18  2:25 [Bug debug/47794] New: [4.6 Regression] New debug failures hjl.tools at gmail dot com
2011-02-18  2:56 ` [Bug debug/47794] " joseph at codesourcery dot com
2011-02-18  8:49 ` jakub at gcc dot gnu.org
2011-02-18 17:43 ` hjl.tools at gmail dot com
2011-02-23 10:30 ` jakub at gcc dot gnu.org

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