From: Richard Biener <richard.guenther@gmail.com>
To: "Joseph S. Myers" <joseph@codesourcery.com>
Cc: Marek Polacek <polacek@redhat.com>,
GCC Patches <gcc-patches@gcc.gnu.org>
Subject: Re: [PATCH] Fix PR56344
Date: Fri, 01 Mar 2013 08:41:00 -0000 [thread overview]
Message-ID: <CAFiYyc3L3b6uk+2Sh4wSg30S-8AdNNFQRPojtfSsF++1L1f3zA@mail.gmail.com> (raw)
In-Reply-To: <Pine.LNX.4.64.1302271737240.14086@digraph.polyomino.org.uk>
On Wed, Feb 27, 2013 at 6:38 PM, Joseph S. Myers
<joseph@codesourcery.com> wrote:
> On Wed, 27 Feb 2013, Richard Biener wrote:
>
>> Wouldn't it be better to simply pass this using the variable size handling
>> code? Thus, initialize args_size.var for too large constant size instead?
>
> Would that be compatible with the ABI definition of how a large (constant
> size) argument should be passed?
I'm not sure. Another alternative is to expand to __builtin_trap (), but that's
probably not easy at this very point.
Or simply fix the size calculation to not overflow (either don't count bits
or use a double-int).
Richard.
> --
> Joseph S. Myers
> joseph@codesourcery.com
next prev parent reply other threads:[~2013-03-01 8:41 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-26 18:27 Marek Polacek
2013-02-26 23:17 ` Joseph S. Myers
2013-02-27 9:56 ` Marek Polacek
2013-02-27 11:33 ` Richard Biener
2013-02-27 17:38 ` Joseph S. Myers
2013-03-01 8:41 ` Richard Biener [this message]
2013-03-05 16:06 ` Marek Polacek
2013-03-13 12:57 ` Marek Polacek
2013-12-02 15:01 ` Richard Biener
2013-12-02 16:40 ` Marek Polacek
2013-12-02 19:19 ` Marek Polacek
2013-12-02 20:35 ` Richard Biener
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