Request for Review (s) - 8133023: ParallelGCThreads is not calculated correctly

[Kim Barrett]

On Nov 17, 2015, at 6:44 PM, Jon Masamitsu <jon.masamitsu at oracle.com> wrote:
> 
> On 11/17/2015 02:31 PM, Kim Barrett wrote:
>> On Nov 17, 2015, at 4:12 PM, Jon Masamitsu <jon.masamitsu at oracle.com> wrote:
>>> http://cr.openjdk.java.net/~jmasa/8133023/webrev.01/
>> Shouldn’t the assert be at the beginning of VM_Version::initialize, rather than some distance into it.
>> There are some _features-based predicates being called before that assert on line 63:
> 
> Yes, that would be good.  What about the guarantee().  Some of the other variables depend on
> has_v9().

Does anything before the has_v9() guarantee require v9?  It’s not even slightly obvious to me.
OTOH, giving up sooner when we’re going to be giving up anyway is probably better.