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From: "damian at sourceryinstitute dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/55824] [OOP] ICE with ALLOCATE and SOURCE= TRANSPOSE/RESHAPE
Date: Tue, 30 Jun 2015 00:23:00 -0000
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X-Bugzilla-Keywords: ice-on-valid-code
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55824

Damian Rouson <damian at sourceryinstitute dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |damian at sourceryinstitute dot or
                   |                            |g

--- Comment #4 from Damian Rouson <damian at sourceryinstitute dot org> ---
I'm guessing the code below is another manifestation of the this bug:

$ cat ice-on-pack-unlimited-polymorphic.f90 
contains
  subroutine array_to_vector(array)
    class(*), allocatable :: vector(:),array(:,:)
    allocate(vector,source=pack(array,.true.))
  end subroutine
end

$ gfortran ice-on-pack-unlimited-polymorphic.f90 
ice-on-pack-unlimited-polymorphic.f90:4:0:

     allocate(vector,source=pack(array,.true.))
1
internal compiler error: Segmentation fault: 11

ice-on-pack-unlimited-polymorphic.f90:4:0: internal compiler error: Abort trap:
6
gfortran: internal compiler error: Abort trap: 6 (program f951)
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://trac.macports.org/newticket> for instructions.

$ gfortran --version
GNU Fortran (MacPorts gcc6 6-20150621_0) 6.0.0 20150621 (experimental)
...

$ sudo port select --set gcc mp-gcc5
Selecting 'mp-gcc5' for 'gcc' succeeded. 'mp-gcc5' is now active.

$ gfortran ice-on-pack-unlimited-polymorphic.f90 
ice-on-pack-unlimited-polymorphic.f90:4:13:

     allocate(vector,source=pack(array,.true.))
             1
Error: Array specification required in ALLOCATE statement at (1)