Re: Regressions introduced very late before 8.1 release

Re: Regressions introduced very late before 8.1 release

[Dominique d'Humières]

> I'm not sure when this happened, but at some point very close to the 8.1
> release date a regression was introduced ...
This is pr85507. Andre has submitted a working patch at https://gcc.gnu.org/ml/fortran/2018-04/msg00120.html, but it has not yet been approved.
> How soon is 8.1 going to be released?
8.1 has been released, so the fix will appear in 8.2.
Cheers,
Dominique

Re: Regressions introduced very late before 8.1 release

[Zaak Beekman]

Sorry I meant 8.2. When is 8.2 planned to be released?

Thanks,
Zaak

On Fri, May 4, 2018 at 12:15 PM Dominique d'Humières <dominiq@lps.ens.fr>
wrote:

> > I'm not sure when this happened, but at some point very close to the 8.1
> > release date a regression was introduced ...
> This is pr85507. Andre has submitted a working patch at
> https://gcc.gnu.org/ml/fortran/2018-04/msg00120.html, but it has not yet
> been approved.
> > How soon is 8.1 going to be released?
> 8.1 has been released, so the fix will appear in 8.2.
> Cheers,
> Dominique
>
>

Re: Regressions introduced very late before 8.1 release

[Steve Kargl]

If you go with historical data.  7.2 followed 7.1 after about 3 month,
and 7.3 about 5 months later.  So, I would guess somewhere between 3-6
months.

-- 
steve

On Fri, May 04, 2018 at 04:47:00PM +0000, Zaak Beekman wrote:
> Sorry I meant 8.2. When is 8.2 planned to be released?
> 
> Thanks,
> Zaak
> 
> On Fri, May 4, 2018 at 12:15 PM Dominique d'Humières <dominiq@lps.ens.fr>
> wrote:
> 
> > > I'm not sure when this happened, but at some point very close to the 8.1
> > > release date a regression was introduced ...
> > This is pr85507. Andre has submitted a working patch at
> > https://gcc.gnu.org/ml/fortran/2018-04/msg00120.html, but it has not yet
> > been approved.
> > > How soon is 8.1 going to be released?
> > 8.1 has been released, so the fix will appear in 8.2.
> > Cheers,
> > Dominique
> >
> >

-- 
Steve
20170425 https://www.youtube.com/watch?v=VWUpyCsUKR4
20161221 https://www.youtube.com/watch?v=IbCHE-hONow

Re: Regressions introduced very late before 8.1 release

[Dominique d'Humières]

> Le 4 mai 2018 à 18:47, Zaak Beekman <zbeekman@gmail.com> a écrit :
> 
> Sorry I meant 8.2. When is 8.2 planned to be released?
> 
> Thanks,
> Zaak

From https://gcc.gnu.org

GCC 7.1 released [2017-05-02]
GCC 7.2 released [2017-08-14]

GCC 8.1 released [2018-05-02]

So my guess is around mid-August.

Dominique

Regressions introduced very late before 8.1 release

[Zaak Beekman]

I'm not sure when this happened, but at some point very close to the 8.1
release date a regression was introduced (during the GCC regression fix
only freeze period) that has significantly broken distributed memory
coarray support with OpenCoarrays. Simple coarray Fortran syntax appears to
trigger an ICE in GFortran 8.1 on macOS. Here is an example from
[sameloc.f90](
https://github.com/sourceryinstitute/OpenCoarrays/blob/master/src/tests/unit/send-get/sameloc.f90#L31)
compiled on macOS:

/Users/ibeekman/Sandbox/OpenCoarrays/src/tests/unit/send-get/sameloc.f90:31:0:

   a = a[1]

internal compiler error: in gfc_dep_resolver, at fortran/dependency.c:2258
libbacktrace could not find executable to open
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://github.com/Homebrew/homebrew-core/issues> for instructions.
Error: comand:
   `/usr/local/bin/gfortran-8
-I/Users/ibeekman/Sandbox/OpenCoarrays/build/include/OpenCoarrays-2.0.0-33-g5a250a1_GNU-8.1.0
-fcoarray=lib -Wl,-flat_namespace -Wl,-commons,use_dylibs -I
/usr/local/Cellar/mpich/3.2.1_2/include -DPREFIX_NAME=_gfortran_caf_
-DGCC_GE_7 -DGCC_GE_8 -DHAVE_MPI -DMPI_WORKING_MODULE -O3 -DNDEBUG -O3 -o
/Users/ibeekman/Sandbox/OpenCoarrays/build/bin/OpenCoarrays-2.0.0-33-g5a250a1-tests/get_self
/Users/ibeekman/Sandbox/OpenCoarrays/src/tests/unit/send-get/sameloc.f90
/Users/ibeekman/Sandbox/OpenCoarrays/build/lib/libcaf_mpi.a
/usr/local/Cellar/mpich/3.2.1_2/lib/libmpifort.dylib
/usr/local/Cellar/mpich/3.2.1_2/lib/libmpi.dylib
/usr/local/Cellar/mpich/3.2.1_2/lib/libpmpi.dylib`
failed to compile.


I have a GCC trunk build from r259376 on 2018-04-13 at 14:32:41 (not sure
if UTC or US Eastern time) that does not exhibit this behavior. I have yet
to post to bugzilla, but presumably I should. How did this ice sneak in so
late before the release? Because of this, OpenCoarrays will likely be
removed from the Homebrew package manager unless we can create a fix on the
OpenCoarrays library side, which looks unlikely.

How soon is 8.1 going to be released?

Thanks,
Zaak