RFC: TLS improvements for IA32 and AMD64/EM64T

[Alexandre Oliva]

On Sep 22, 2005, Alexandre Oliva <aoliva@redhat.com> wrote:

> On Sep 17, 2005, Alexandre Oliva <aoliva@redhat.com> wrote:
>> On Sep 16, 2005, Alexandre Oliva <aoliva@redhat.com> wrote:
>>> On Sep 16, 2005, Alexandre Oliva <aoliva@redhat.com> wrote:
>>>> Over the past few months, I've been working on porting to IA32 and
>>>> AMD64/EM64T the interesting bits of the TLS design I came up with for
>>>> FR-V, achieving some impressive speedups along with slight code size
>>>> reductions in the most common cases.
>>> Here's the patch.  Built and tested on x86_64-linux-gnu and
>>> i686-pc-linux-gnu.  Ok to install?

>> Updated patch, using different relocation numbers, and different
>> dynamic table numbers as well.  Same tests run and passed.  Ok to
>> install?

> Updated again.  Only significant change is that we no longer emit the
> new dynamic table entries on x86-64 if we're linking with -z now,
> since then we know we won't be resolving the relocations lazily, and
> so the entries are not used at all.

One more update.  This time I've modified a little bit the code
generated to pad relaxations, to get the best performance according to
my benchmarking (not a lot of difference, but still), and adjusted the
testsuite to match.

Ok to install?

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-- 
Alexandre Oliva         http://www.lsd.ic.unicamp.br/~oliva/
Red Hat Compiler Engineer   aoliva@{redhat.com, gcc.gnu.org}
Free Software Evangelist  oliva@{lsd.ic.unicamp.br, gnu.org}