* [Bug c/53967] GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default)
2012-07-14 20:52 [Bug c/53967] New: GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default) bfriesen at simple dot dallas.tx.us
@ 2012-07-14 20:56 ` bfriesen at simple dot dallas.tx.us
2012-07-14 20:57 ` bfriesen at simple dot dallas.tx.us
` (17 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: bfriesen at simple dot dallas.tx.us @ 2012-07-14 20:56 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53967
--- Comment #1 from bfriesen at simple dot dallas.tx.us 2012-07-14 20:55:48 UTC ---
Created attachment 27793
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27793
Build log
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug c/53967] GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default)
2012-07-14 20:52 [Bug c/53967] New: GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default) bfriesen at simple dot dallas.tx.us
2012-07-14 20:56 ` [Bug c/53967] " bfriesen at simple dot dallas.tx.us
@ 2012-07-14 20:57 ` bfriesen at simple dot dallas.tx.us
2012-07-14 20:58 ` bfriesen at simple dot dallas.tx.us
` (16 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: bfriesen at simple dot dallas.tx.us @ 2012-07-14 20:57 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53967
--- Comment #2 from bfriesen at simple dot dallas.tx.us 2012-07-14 20:56:55 UTC ---
Created attachment 27794
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27794
Sample portable source file
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug c/53967] GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default)
2012-07-14 20:52 [Bug c/53967] New: GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default) bfriesen at simple dot dallas.tx.us
2012-07-14 20:56 ` [Bug c/53967] " bfriesen at simple dot dallas.tx.us
2012-07-14 20:57 ` bfriesen at simple dot dallas.tx.us
@ 2012-07-14 20:58 ` bfriesen at simple dot dallas.tx.us
2012-07-14 20:59 ` bfriesen at simple dot dallas.tx.us
` (15 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: bfriesen at simple dot dallas.tx.us @ 2012-07-14 20:58 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53967
--- Comment #3 from bfriesen at simple dot dallas.tx.us 2012-07-14 20:57:58 UTC ---
Created attachment 27795
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27795
Pre-processed source
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug c/53967] GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default)
2012-07-14 20:52 [Bug c/53967] New: GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default) bfriesen at simple dot dallas.tx.us
` (2 preceding siblings ...)
2012-07-14 20:58 ` bfriesen at simple dot dallas.tx.us
@ 2012-07-14 20:59 ` bfriesen at simple dot dallas.tx.us
2012-07-14 21:06 ` [Bug target/53967] " bfriesen at simple dot dallas.tx.us
` (14 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: bfriesen at simple dot dallas.tx.us @ 2012-07-14 20:59 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53967
--- Comment #4 from bfriesen at simple dot dallas.tx.us 2012-07-14 20:58:59 UTC ---
Created attachment 27796
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27796
Generated assembler code
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/53967] GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default)
2012-07-14 20:52 [Bug c/53967] New: GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default) bfriesen at simple dot dallas.tx.us
` (3 preceding siblings ...)
2012-07-14 20:59 ` bfriesen at simple dot dallas.tx.us
@ 2012-07-14 21:06 ` bfriesen at simple dot dallas.tx.us
2012-07-14 21:42 ` bfriesen at simple dot dallas.tx.us
` (13 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: bfriesen at simple dot dallas.tx.us @ 2012-07-14 21:06 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53967
--- Comment #5 from bfriesen at simple dot dallas.tx.us 2012-07-14 21:06:27 UTC ---
Please note that while I mentioned GCC 4.6.2, the same problem is also observed
with GCC 4.7.1.
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/53967] GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default)
2012-07-14 20:52 [Bug c/53967] New: GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default) bfriesen at simple dot dallas.tx.us
` (4 preceding siblings ...)
2012-07-14 21:06 ` [Bug target/53967] " bfriesen at simple dot dallas.tx.us
@ 2012-07-14 21:42 ` bfriesen at simple dot dallas.tx.us
2012-07-16 12:42 ` rguenth at gcc dot gnu.org
` (12 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: bfriesen at simple dot dallas.tx.us @ 2012-07-14 21:42 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53967
--- Comment #6 from bfriesen at simple dot dallas.tx.us 2012-07-14 21:42:38 UTC ---
Created attachment 27797
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27797
Pre-processed GraphicsMagick source (effect.c).
In case the small sample (which only illustrates the core algorithm) does not
satisfy, I have attached a pre-processed version of the real GraphicsMagick
code with the performance issue. Look for ConvolveImage().
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/53967] GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default)
2012-07-14 20:52 [Bug c/53967] New: GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default) bfriesen at simple dot dallas.tx.us
` (5 preceding siblings ...)
2012-07-14 21:42 ` bfriesen at simple dot dallas.tx.us
@ 2012-07-16 12:42 ` rguenth at gcc dot gnu.org
2012-07-16 14:17 ` bfriesen at simple dot dallas.tx.us
` (11 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-07-16 12:42 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53967
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2012-07-16
Ever Confirmed|0 |1
--- Comment #7 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-07-16 12:42:15 UTC ---
What options do you use besides -march=corei7-avx? The build-log does not
tell.
Did you try -march=corei7 instead of -march=corei7-avx?
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/53967] GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default)
2012-07-14 20:52 [Bug c/53967] New: GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default) bfriesen at simple dot dallas.tx.us
` (6 preceding siblings ...)
2012-07-16 12:42 ` rguenth at gcc dot gnu.org
@ 2012-07-16 14:17 ` bfriesen at simple dot dallas.tx.us
2012-07-16 14:57 ` rguenth at gcc dot gnu.org
` (10 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: bfriesen at simple dot dallas.tx.us @ 2012-07-16 14:17 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53967
--- Comment #8 from bfriesen at simple dot dallas.tx.us 2012-07-16 14:16:46 UTC ---
I used -march=native in this case. It is interesting that this enabled AVX
(this particular CPU does support it).
To be clear, the problem also occurs with
-m64 -mtune=generic -march=x86-64 -mfpmath=sse
vs
-m64 -mtune=generic -march=x86-64 -mfpmath=387
and is also observed on a 5-year old Opteron.
With GCC 4.7.1, and for a specific application benchmark case and with generic
architecture and tuning, -mfpmath=387 produces 0.133 iter/s and -mfpmath=sse
produces 0.047 iter/s. A different (non-GCC) compiler on the same system
produces 0.155 iter/s.
In the course of testing, I have indeed tried -march=corei7 and it did not
provide an improvement.
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/53967] GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default)
2012-07-14 20:52 [Bug c/53967] New: GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default) bfriesen at simple dot dallas.tx.us
` (7 preceding siblings ...)
2012-07-16 14:17 ` bfriesen at simple dot dallas.tx.us
@ 2012-07-16 14:57 ` rguenth at gcc dot gnu.org
2012-07-16 15:35 ` bfriesen at simple dot dallas.tx.us
` (9 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-07-16 14:57 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53967
--- Comment #9 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-07-16 14:56:59 UTC ---
(In reply to comment #8)
> I used -march=native in this case. It is interesting that this enabled AVX
> (this particular CPU does support it).
>
> To be clear, the problem also occurs with
>
> -m64 -mtune=generic -march=x86-64 -mfpmath=sse
>
> vs
>
> -m64 -mtune=generic -march=x86-64 -mfpmath=387
>
> and is also observed on a 5-year old Opteron.
>
> With GCC 4.7.1, and for a specific application benchmark case and with generic
> architecture and tuning, -mfpmath=387 produces 0.133 iter/s and -mfpmath=sse
> produces 0.047 iter/s. A different (non-GCC) compiler on the same system
> produces 0.155 iter/s.
>
> In the course of testing, I have indeed tried -march=corei7 and it did not
> provide an improvement.
What kind of optimization options are you using? -O3? Or are you really
using -O0 (aka nothing)?
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/53967] GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default)
2012-07-14 20:52 [Bug c/53967] New: GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default) bfriesen at simple dot dallas.tx.us
` (8 preceding siblings ...)
2012-07-16 14:57 ` rguenth at gcc dot gnu.org
@ 2012-07-16 15:35 ` bfriesen at simple dot dallas.tx.us
2012-07-16 15:41 ` bfriesen at simple dot dallas.tx.us
` (8 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: bfriesen at simple dot dallas.tx.us @ 2012-07-16 15:35 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53967
--- Comment #10 from bfriesen at simple dot dallas.tx.us 2012-07-16 15:35:03 UTC ---
This particular application test was done with these options (i.e. -O2):
-m64 -mtune=generic -march=x86-64 -mfpmath=387 -O2
I have also tried -O3, with no positive benefit.
The Autoconf default is -O2 so that is what I generally test/tune the software
with. It is pretty rare to see additional benefit from -O3, although with some
versions of GCC I have seen application crashes due to wrong code from the tree
vectorizer.
Bob
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/53967] GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default)
2012-07-14 20:52 [Bug c/53967] New: GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default) bfriesen at simple dot dallas.tx.us
` (9 preceding siblings ...)
2012-07-16 15:35 ` bfriesen at simple dot dallas.tx.us
@ 2012-07-16 15:41 ` bfriesen at simple dot dallas.tx.us
2012-07-17 9:20 ` rguenth at gcc dot gnu.org
` (7 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: bfriesen at simple dot dallas.tx.us @ 2012-07-16 15:41 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53967
--- Comment #11 from bfriesen at simple dot dallas.tx.us 2012-07-16 15:41:08 UTC ---
I just verified that -O3 produces similar timings to -O2 for both -mfpmath=387
and -mfpmath=sse
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/53967] GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default)
2012-07-14 20:52 [Bug c/53967] New: GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default) bfriesen at simple dot dallas.tx.us
` (10 preceding siblings ...)
2012-07-16 15:41 ` bfriesen at simple dot dallas.tx.us
@ 2012-07-17 9:20 ` rguenth at gcc dot gnu.org
2012-07-18 9:45 ` evstupac at gmail dot com
` (6 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-07-17 9:20 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53967
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |NEW
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/53967] GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default)
2012-07-14 20:52 [Bug c/53967] New: GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default) bfriesen at simple dot dallas.tx.us
` (11 preceding siblings ...)
2012-07-17 9:20 ` rguenth at gcc dot gnu.org
@ 2012-07-18 9:45 ` evstupac at gmail dot com
2012-07-18 10:50 ` rguenth at gcc dot gnu.org
` (5 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: evstupac at gmail dot com @ 2012-07-18 9:45 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53967
Stupachenko Evgeny <evstupac at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |evstupac at gmail dot com
--- Comment #12 from Stupachenko Evgeny <evstupac at gmail dot com> 2012-07-18 09:45:15 UTC ---
I tried it at "-O2" and got low performance with -mfpmath=sse. It looks like it
is caused by register dependency (%xmm0) between:
addss %xmm0, %xmm1
cvtsi2ss %eax, %xmm0
Renaming %xmm0 in cvtsi2ss to another free register in all such cases resolves
the issue.
Also you can try "-O2 -funroll-loops", which made "sse" code even faster and
and "-O2 -fschedule-insns" which significantly reduced performance loses in
"sse" case.
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/53967] GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default)
2012-07-14 20:52 [Bug c/53967] New: GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default) bfriesen at simple dot dallas.tx.us
` (12 preceding siblings ...)
2012-07-18 9:45 ` evstupac at gmail dot com
@ 2012-07-18 10:50 ` rguenth at gcc dot gnu.org
2012-07-18 14:28 ` bfriesen at simple dot dallas.tx.us
` (4 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-07-18 10:50 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53967
--- Comment #13 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-07-18 10:49:53 UTC ---
You can also try -frename-registers
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/53967] GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default)
2012-07-14 20:52 [Bug c/53967] New: GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default) bfriesen at simple dot dallas.tx.us
` (13 preceding siblings ...)
2012-07-18 10:50 ` rguenth at gcc dot gnu.org
@ 2012-07-18 14:28 ` bfriesen at simple dot dallas.tx.us
2012-07-18 20:42 ` bfriesen at simple dot dallas.tx.us
` (3 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: bfriesen at simple dot dallas.tx.us @ 2012-07-18 14:28 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53967
--- Comment #14 from bfriesen at simple dot dallas.tx.us 2012-07-18 14:28:04 UTC ---
With
-m64 -mtune=generic -march=x86-64 -mfpmath=sse -O2 -funroll-loops
-fschedule-insns
I see a whole-program performance jump from 0.047 iter/s to 0.156 iter/s (331%
boost). That is huge! Given the fundamental properties of this algorithm (the
image processing algorithm most often recommended to be moved to a GPU) the
world would be a better place if this performance was the normal case.
With
-m64 -mtune=generic -march=x86-64 -mfpmath=sse -O2 -fschedule-insns
I see 0.101 iter/s
These must not be included in -O3 since
-m64 -mtune=generic -march=x86-64 -mfpmath=sse -O3
produces only 0.048 iter/s
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/53967] GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default)
2012-07-14 20:52 [Bug c/53967] New: GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default) bfriesen at simple dot dallas.tx.us
` (14 preceding siblings ...)
2012-07-18 14:28 ` bfriesen at simple dot dallas.tx.us
@ 2012-07-18 20:42 ` bfriesen at simple dot dallas.tx.us
2012-07-19 14:29 ` bfriesen at simple dot dallas.tx.us
` (2 subsequent siblings)
18 siblings, 0 replies; 20+ messages in thread
From: bfriesen at simple dot dallas.tx.us @ 2012-07-18 20:42 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53967
--- Comment #15 from bfriesen at simple dot dallas.tx.us 2012-07-18 20:42:22 UTC ---
Testing shows that using
-m64 -march=native -O2 -mfpmath=sse -frename-registers
is sufficient to restore good performance.
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/53967] GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default)
2012-07-14 20:52 [Bug c/53967] New: GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default) bfriesen at simple dot dallas.tx.us
` (15 preceding siblings ...)
2012-07-18 20:42 ` bfriesen at simple dot dallas.tx.us
@ 2012-07-19 14:29 ` bfriesen at simple dot dallas.tx.us
2012-07-21 1:05 ` bfriesen at simple dot dallas.tx.us
2012-08-12 15:41 ` xunxun1982 at gmail dot com
18 siblings, 0 replies; 20+ messages in thread
From: bfriesen at simple dot dallas.tx.us @ 2012-07-19 14:29 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53967
--- Comment #16 from bfriesen at simple dot dallas.tx.us 2012-07-19 14:29:10 UTC ---
Is there a way that I can selectively apply the -frename-registers fix to
functions which benefit from it in order to work around the bug until the fix
is widely available? I tried
#pragma GCC optimize ("O3,rename-registers")
and
#pragma GCC optimize ("rename-registers")
as well as the function attribute equivalent and there was no effect. GCC
seems to ignore the request.
I did find another somewhat similar function which benefited significantly from
-frename-registers.
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/53967] GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default)
2012-07-14 20:52 [Bug c/53967] New: GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default) bfriesen at simple dot dallas.tx.us
` (16 preceding siblings ...)
2012-07-19 14:29 ` bfriesen at simple dot dallas.tx.us
@ 2012-07-21 1:05 ` bfriesen at simple dot dallas.tx.us
2012-08-12 15:41 ` xunxun1982 at gmail dot com
18 siblings, 0 replies; 20+ messages in thread
From: bfriesen at simple dot dallas.tx.us @ 2012-07-21 1:05 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53967
--- Comment #17 from bfriesen at simple dot dallas.tx.us 2012-07-21 01:04:55 UTC ---
I discovered that GCC's __attribute__((__optimize__())) and optimization
pragmas do not work for OpenMP code because OpenMP uses a different function
name for the actual working code. This makes it much more painful to work
around this bug.
^ permalink raw reply [flat|nested] 20+ messages in thread
* [Bug target/53967] GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default)
2012-07-14 20:52 [Bug c/53967] New: GCC produces slow code for convolution algorithm with -mfpmath=sse (the AMD_64 default) bfriesen at simple dot dallas.tx.us
` (17 preceding siblings ...)
2012-07-21 1:05 ` bfriesen at simple dot dallas.tx.us
@ 2012-08-12 15:41 ` xunxun1982 at gmail dot com
18 siblings, 0 replies; 20+ messages in thread
From: xunxun1982 at gmail dot com @ 2012-08-12 15:41 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53967
--- Comment #18 from xunxun <xunxun1982 at gmail dot com> 2012-08-12 15:41:35 UTC ---
Is the bug related with PR19780?
^ permalink raw reply [flat|nested] 20+ messages in thread