This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: *PING* Re: [PATCH] Save checksum of compiler options in LTO files

On Sun, Oct 17, 2010 at 8:30 PM, Andi Kleen <andi@firstfloor.org> wrote:
> Andi Kleen <andi@firstfloor.org> writes:
>
>> From: Andi Kleen <ak@linux.intel.com>
>>
>> I was finally tired of constant ICEs when I updated to a newer svn version
>> because there were some stale LTO files lying around somewhere. The usual
>> reason were added gcc options, which then change the option offsets
>> and confuse the LTO options save/restore code.
>>
>> There is already a version check, but it only checks major/minor and
>> does not handle smaller scale changes.
>
> Could someone please review that patch?

There are many more issues that affect LTO bytecode compatibility
(such as added tree codes for example).  So I think as developers
we should just live with the fact that this happens on the trunk.

Richard.

> Thanks,
>
> -And
>
> --
> ak@linux.intel.com -- Speaking for myself only.
>
Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]