From: Richard Biener <rguenther@suse.de>
To: Kyrill Tkachov <kyrylo.tkachov@foss.arm.com>
Cc: "vladimir.mezentsev@oracle.com" <vladimir.mezentsev@oracle.com>,
GCC Patches <gcc-patches@gcc.gnu.org>,
Jan Hubicka <hubicka@ucw.cz>
Subject: Re: [PATCH] PR gcc/84923 - gcc.dg/attr-weakref-1.c failed on aarch64
Date: Thu, 17 May 2018 08:46:00 -0000 [thread overview]
Message-ID: <alpine.LSU.2.20.1805171041300.24704@zhemvz.fhfr.qr> (raw)
In-Reply-To: <5AFD3A50.4000409@foss.arm.com>
On Thu, 17 May 2018, Kyrill Tkachov wrote:
> Hi,
>
> Given this is a midend change it's a good idea to CC some of the maintainers
> of that area.
> I've copied richi and Honza.
The patch is ok for trunk (it's actually mine...) and for the branch
after a while.
Thanks,
Richard.
> Thanks,
> Kyrill
>
> On 17/05/18 05:35, vladimir.mezentsev@oracle.com wrote:
> > Ping.
> >
> > -Vladimir
> >
> >
> > On 05/10/2018 11:30 PM, vladimir.mezentsev@oracle.com wrote:
> > > From: Vladimir Mezentsev <vladimir.mezentsev@oracle.com>
> > >
> > > When weakref_targets is not empty a target cannot be removed from the weak
> > list.
> > > A small example is below when 'wv12' is removed from the weak list on
> > aarch64:
> > > static vtype Wv12 __attribute__((weakref ("wv12")));
> > > extern vtype wv12 __attribute__((weak));
> > >
> > > Bootstrapped on aarch64-unknown-linux-gnu including (c,c++ and go).
> > > Tested on aarch64-linux-gnu.
> > > No regression. The attr-weakref-1.c test passed.
> > >
> > > ChangeLog:
> > > 2018-05-10 Vladimir Mezentsev <vladimir.mezentsev@oracle.com>
> > >
> > > PR gcc/84923
> > > * varasm.c (weak_finish): clean up weak_decls
> > > ---
> > > gcc/varasm.c | 3 ++-
> > > 1 file changed, 2 insertions(+), 1 deletion(-)
> > >
> > > diff --git a/gcc/varasm.c b/gcc/varasm.c
> > > index 85296b4..8cf6e1e 100644
> > > --- a/gcc/varasm.c
> > > +++ b/gcc/varasm.c
> > > @@ -5652,7 +5652,8 @@ weak_finish (void)
> > > tree alias_decl = TREE_PURPOSE (t);
> > > tree target = ultimate_transparent_alias_target (&TREE_VALUE (t));
> > >
> > > - if (! TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (alias_decl)))
> > > + if (! TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (alias_decl))
> > > + || TREE_SYMBOL_REFERENCED (target))
> > > /* Remove alias_decl from the weak list, but leave entries for
> > > the target alone. */
> > > target = NULL_TREE;
> >
>
>
--
Richard Biener <rguenther@suse.de>
SUSE LINUX GmbH, GF: Felix Imendoerffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nuernberg)
next prev parent reply other threads:[~2018-05-17 8:42 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-11 6:42 vladimir.mezentsev
2018-05-17 5:10 ` vladimir.mezentsev
2018-05-17 8:21 ` Kyrill Tkachov
2018-05-17 8:46 ` Richard Biener [this message]
2018-05-21 20:34 ` Jeff Law
2018-05-21 22:37 ` vladimir.mezentsev
-- strict thread matches above, loose matches on Subject: below --
2018-04-13 6:09 vladimir.mezentsev
2018-04-25 10:06 ` Ramana Radhakrishnan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=alpine.LSU.2.20.1805171041300.24704@zhemvz.fhfr.qr \
--to=rguenther@suse.de \
--cc=gcc-patches@gcc.gnu.org \
--cc=hubicka@ucw.cz \
--cc=kyrylo.tkachov@foss.arm.com \
--cc=vladimir.mezentsev@oracle.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).