IRA copy heuristics

[Richard Sandiford]

"H.J. Lu" <hjl.tools@gmail.com> writes:
> On Tue, Sep 2, 2008 at 8:37 AM, Vladimir Makarov <vmakarov@redhat.com> wrote:
>>>
>>> If using DF seems like the Right Thing, we could simply apply both
>>> patches, which would give a similar same allocno order to the one
>>> we have now.  But it seemed better to look a bit deeper first...
>>>
>>
>> Richard, please apply the both patches.  As I wrote above there is no
>> SPECFP regression anymore with the patches.  They also solves some
>> testsuite regressions concerning EH.
>>
>
> Hi Richard,
>
> Could you please apply your use DF patch? It fixes EH regressions
> as well as 434.zeusmp in SPEC CPU 2006?

As I said yesterday, I'm reluctant to apply the first patch,
because without further analysis, there's a danger it's just
papering over a deeper problem.

It's interesting that it fixes EH regressions for you too though.
That was what the patch was originally meant to do, but I thought
I'd only seem the regressions I was fixing on MIPS, not on x86_64.
Which target did you see them on?

Richard