https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
Paul Thomas changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
--- Comment #2 from Tobias Burnus ---
Submitted and approved patch:
https://gcc.gnu.org/ml/gcc-patches/2019-11/msg00072.html – still to be
committed by the author.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
--- Comment #3 from Paul Thomas ---
Author: pault
Date: Sun Nov 10 18:33:00 2019
New Revision: 278025
URL: https://gcc.gnu.org/viewcvs?rev=278025&root=gcc&view=rev
Log:
2019-11-10 Paul Thomas
PR fortran/92123
*decl.c (gfc_ver
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
Thomas Schwinge changed:
What|Removed |Added
CC||tschwinge at gcc dot gnu.org
--- Comme
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
Jakub Jelinek changed:
What|Removed |Added
CC||jakub at gcc dot gnu.org
--- Comment #5
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
--- Comment #6 from Tobias Burnus ---
Some side remarks:
(In reply to Jakub Jelinek from comment #5)
> The type used on the C side is:
This type is described in the Fortran standard; for Fortran 2018, it is
described in "18.5.3 The CFI_cdesc_t
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
--- Comment #7 from Jakub Jelinek ---
I don't see any conversion function to be called:
fsub (struct array15_integer(kind=4) & restrict dat)
{
{
integer(kind=4) * __tmp_INTEGER_4_rank_0;
{
signed char D.3928;
integer(kind=8
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
--- Comment #8 from paul.richard.thomas at gmail dot com ---
Hi Jakub,
Thanks for spotting that. For whatever reason,
* trans-decl.c (gfc_get_symbol_decl): Assumed shape and assumed
rank dummies of bind C procs require deferred initialization.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
--- Comment #9 from Paul Thomas ---
Created attachment 47258
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47258&action=edit
Patch to fix problem with ISO_Fortran_binding_15.*
Hi Jakub and Tobias,
Restoring the call to trans-decl.c(conve
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
--- Comment #10 from Paul Thomas ---
Created attachment 47261
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47261&action=edit
A better fix
Hi Jakub and Tobias,
It turns out that the TREE_STATIC is only required for the gfc descriptor and
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
--- Comment #11 from Jakub Jelinek ---
The TREE_STATIC looks wrong to me, it will misbehave if the function is called
recursively, or if the function is called several times concurrently (say in
OpenMP).
If the reason for TREE_STATIC is that the
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
--- Comment #12 from Tobias Burnus ---
(all related to gcc/testsuite/gfortran.dg/ISO_Fortran_binding_15.f90)
I tried - with Paul's attached patch (attachment 47261)
DECL_CONTEXT (gfc_desc) = current_function_decl;
instead of TREE_STATIC - but
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
Jakub Jelinek changed:
What|Removed |Added
CC||rguenth at gcc dot gnu.org
--- Comment #
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
--- Comment #14 from Richard Biener ---
Well, lying means that for non-escaped desctiptors A and B doing
A.data = malloc();
gfc_desc_to_cfi_desc (&B, &A)
B.data and A.data are not considered aliasing.
So I'd recommend to not lie here. Yes
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
--- Comment #15 from Jakub Jelinek ---
I think other fn spec attributes in trans-decl.c should be checked.
E.g. for internal_pack, I see ".r", when the function sometimes returns a
pointer to a field pointed by the first argument. The address of
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
Thomas Koenig changed:
What|Removed |Added
CC||tkoenig at gcc dot gnu.org
--- Comment #
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
--- Comment #17 from Tobias Burnus ---
(In reply to Thomas Koenig from comment #16)
> Is there a specification (or even description) for fn spec somewhere?
> I can't say I understand exactly what it does.
Maybe gimple.c's gimple_call_arg_flags:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
--- Comment #18 from Jakub Jelinek ---
https://gcc.gnu.org/ml/gcc-patches/2010-04/msg00895.html
contained documentation but in the end we went with an internal "fn spec"
attribute rather than user visible fnspec:
https://gcc.gnu.org/ml/gcc-patche
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
--- Comment #19 from Richard Biener ---
There is also tree-core.h:
/* Call argument flags. */
/* Nonzero if the argument is not dereferenced recursively, thus only
directly reachable memory is read or written. */
#define EAF_DIRECT
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
--- Comment #20 from Jakub Jelinek ---
Created attachment 47377
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47377&action=edit
gcc10-fnspec-test.patch
Just for archival purposes, here is a short gcc plugin that allows testing "fn
spec" a
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
--- Comment #21 from paul.richard.thomas at gmail dot com ---
Hi All,
I took one of the other fn_spec's as a template - it might well have
been internal_pack.
Thanks for looking at this.
Cheers
Paul
On Mon, 25 Nov 2019 at 13:04, jakub at gcc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
--- Comment #22 from rguenther at suse dot de ---
On Wed, 27 Nov 2019, jakub at gcc dot gnu.org wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
>
> --- Comment #20 from Jakub Jelinek ---
> Created attachment 47377
> --> https://g
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
--- Comment #23 from Tobias Burnus ---
I have the feeling that some other use also disagrees between ME and FE/Fortran
semantics assumptions.
I just run into PR 92703: if one comments the unrelated 'foo', with -O0 one
gets the expected 'stop 2'
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
--- Comment #24 from Richard Biener ---
(In reply to Tobias Burnus from comment #23)
> I have the feeling that some other use also disagrees between ME and
> FE/Fortran semantics assumptions.
>
> I just run into PR 92703: if one comments the unr
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
--- Comment #25 from CVS Commits ---
The master branch has been updated by Jakub Jelinek :
https://gcc.gnu.org/g:2595f25cdaf4f16d04a1078a487b2ecc126cae29
commit r10-6344-g2595f25cdaf4f16d04a1078a487b2ecc126cae29
Author: Jakub Jelinek
Date: T
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92123
Jakub Jelinek changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|---
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