RFR: Partial GC

[Aleksey Shipilev]

On 03/13/2017 07:30 PM, Roman Kennke wrote:
> Fixed everything except verification in full-gc. We can't really verify
> the matrix there because at no point during full-GC does the marking
> bitmap match the new addresses of objects, and therefore the new matrix.
> This is why I removed it.
> 
> http://cr.openjdk.java.net/~rkennke/partialgc/webrev.02/

Ok then.

> I found the the C2 matrix math optimization broke matrix updating. In
> order for partial gc to work correctly we either need to back that out
> or run without C2.

I would prefer to push this, and then figure out C2. Matrix stuff is under
construction anyway, and does not affect default operation.

Thanks,
-Aleksey