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Date: Tue, 01 Sep 2009 18:39:00 -0000
Message-ID: <b798aad50909011139m47bbc02ej818e8fa5f96803ba@mail.gmail.com>
Subject: Re: [lto] Reader-writer compatibility?
From: Diego Novillo <dnovillo@google.com>
To: "Frank Ch. Eigler" <fche@redhat.com>
Cc: rmansfield@qnx.com, gcc@gcc.gnu.org
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On Tue, Sep 1, 2009 at 14:32, Frank Ch. Eigler<fche@redhat.com> wrote:
> Ryan Mansfield <rmansfield@qnx.com> writes:
>
>> The objects were created with rev 151111 and being read using 151271.
>> No, I can't reproduce the ICE using the same version.
>> Thanks for confirming this is not expected to work.
>
> Is it the intent that this work properly in the future?

Yes.  We likely want to maintain streamer compatibility within the
same major release.  I actually don't think we'll change the bytecode
format too much.  It will mostly depend on how much gimple changes in
a single release.

Clearly, we need better version drift detection.

Diego.