[Bug fortran/41209] Add full ATTRIBUTE support to gfortran (ALIGN, (WEAK)ALIAS, ...)

[Bug fortran/41209] Add full ATTRIBUTE support to gfortran (ALIGN, (WEAK)ALIAS, ...)

[roucaries.bastien+bugs at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41209

Bastien ROUCARIES <roucaries.bastien+bugs at gmail dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |roucaries.bastien+bugs at
                   |                            |gmail dot com

--- Comment #6 from Bastien ROUCARIES <roucaries.bastien+bugs at gmail dot com> 2011-06-10 10:16:51 UTC ---
Please not that bug #35827 (http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35827)
depend of this bug.

[Bug fortran/41209] Add full ATTRIBUTE support to gfortran (ALIGN, (WEAK)ALIAS, ...)

[stevenj at alum dot mit.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41209

stevenj at alum dot mit.edu changed:

           What    |Removed                     |Added
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                 CC|                            |stevenj at alum dot mit.edu

--- Comment #7 from stevenj at alum dot mit.edu 2011-06-22 05:17:45 UTC ---
Note that Bug 49501 (requesting at least ATTRIBUTES ALIGN) is also related to
this one.

[Bug fortran/41209] Add full ATTRIBUTE support to gfortran (ALIGN, (WEAK)ALIAS, ...)

[tkoenig at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41209

--- Comment #8 from Thomas Koenig <tkoenig at gcc dot gnu.org> 2011-09-11 12:06:48 UTC ---
*** Bug 49501 has been marked as a duplicate of this bug. ***

[Bug fortran/41209] Add full ATTRIBUTE support to gfortran (ALIGN, (WEAK)ALIAS, ...)

[burnus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41209

--- Comment #9 from Tobias Burnus <burnus at gcc dot gnu.org> ---
For ALIGN, we should consider following Intel's compiler by also using it for
ALLOCATE and not only for static arrays; cf.
http://software.intel.com/en-us/articles/data-alignment-to-assist-vectorization
(That has to be explicitly spelled out as for C/C++ the aligned attribute -
obviously - does not have this effect.)

[Bug fortran/41209] Add full ATTRIBUTE support to gfortran (ALIGN, (WEAK)ALIAS, ...)

[burnus at gcc dot gnu dot org]

------- Comment #5 from burnus at gcc dot gnu dot org  2010-08-24 14:38 -------
This feature is also useful for the test suite, e.g. to force no inlining.

TODO 3:
Some attributes need to be moved out of c-family/c-common.c to be available for
Fortran.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41209

[Bug fortran/41209] Add full ATTRIBUTE support to gfortran (ALIGN, (WEAK)ALIAS, ...)

[burnus at gcc dot gnu dot org]

------- Comment #4 from burnus at gcc dot gnu dot org  2010-02-18 16:19 -------
Another request for this feature:
  http://gcc.gnu.org/ml/fortran/2010-02/msg00144.html


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41209

[Bug fortran/41209] Add full ATTRIBUTE support to gfortran (ALIGN, (WEAK)ALIAS, ...)

[dfranke at gcc dot gnu dot org]

------- Comment #3 from dfranke at gcc dot gnu dot org  2009-12-04 23:33 -------
Confirmed and marked as enhancement.
(I'd like to eventually be able to use the attribute DEPRECATED.)


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dfranke at gcc dot gnu dot org changed:

           What    |Removed                     |Added
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                 CC|                            |dfranke at gcc dot gnu dot
                   |                            |org
           Severity|normal                      |enhancement
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-12-04 23:33:29
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41209

[Bug fortran/41209] Add full ATTRIBUTE support to gfortran (ALIGN, (WEAK)ALIAS, ...)

[burnus at gcc dot gnu dot org]

------- Comment #2 from burnus at gcc dot gnu dot org  2009-09-01 17:39 -------
Created an attachment (id=18463)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18463&action=view)
Draft patch - first steps but incomplete & will not work

Draft patch (not really work yet).

TODO:
a) Copy attributes properly and free them at the end
b) Write/read them from the .mod file
c) Use an ENUM for stdcall etc.? Requires a check whether they are already set
but those options are orthogonal thus that makes sense.

TODO 2: Check whether derived types are properly handled: bind(C) vs. sequence
vs. extensible types. And attributes to components vs. attributes to the type
as a whole.
Plus checking whether we set some attributes by default which clash with user
settings.
Plus: Are additional front-end checks needed besides stdcall etc. conformance
for proc-pointers?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41209

[Bug fortran/41209] Add full ATTRIBUTE support to gfortran (ALIGN, (WEAK)ALIAS, ...)

[burnus at gcc dot gnu dot org]

------- Comment #1 from burnus at gcc dot gnu dot org  2009-09-01 13:29 -------
As fun one can think of supporting also alignment within a TYPE, similarly to
C's:
   struct foo { int x[2] __attribute__ ((aligned (8))); };

See http://gcc.gnu.org/onlinedocs/gcc/Type-Attributes.html for details.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41209