Request for Review (XS): 7087445, Improve platform independence of JSR292 shared code

[John Rose]

It's a little jarring to have initial_deoptimization_info supply the initial_fp of the unroll block.

I suggest s/initial_deoptimization_info/initial_fp_for_deoptimization/ to simplify the correspondence.

Then platforms which supply fp() for this don't have to apologize so much, and this line looks more normal:

  info->set_initial_fp((intptr_t) array->sender().initial_fp_for_deoptimization());


-- John

On Sep 6, 2011, at 9:04 AM, Bertrand Delsart wrote:

> Small shared changes necessary to improve portability of jsr292
> on some platforms.
> 
> http://cr.openjdk.java.net/~bdelsart/7087445/webrev.00/
> 
> Should have no impact on the existing ports, as long as
> you add this backward compatible definition (added to SPARC,
> x86 and zero):
> 
> intptr_t *frame::initial_deoptimization_info() {
>  return fp();
> }
> 
> Thanks,
> 
> Bertrand.
> -- 
> Bertrand Delsart,               bertrand.delsart at oracle.com,
> Sun-Oracle France, 180 av. de l'Europe, ZIRST de Montbonnot,
> 38334 Saint Ismier,                                  FRANCE