RFR (S):8067891 Remove vestigal G1SATBCT barrier set kind

[joe provino]

Okay, I'll wait and take a look at 
https://bugs.openjdk.java.net/browse/JDK-8069016

joe

On 02/06/2015 03:38 PM, Kim Barrett wrote:
> On Feb 5, 2015, at 6:51 PM, Joseph Provino <joseph.provino at oracle.com> wrote:
>> Please review these changes:
>>
>> webrev is here: http://cr.openjdk.java.net/~jprovino/8067891/webrev.00/
> Not a review, but rather a "please wait" request.
>
> src/cpu/ppc/vm/macroAssembler_ppc.cpp
> 2313   G1SATBCardTableModRefBS* bs = (G1SATBCardTableModRefBS*) Universe::heap()->barrier_set();
> 2314   assert(bs->kind() == BarrierSet::G1SATBCTLogging, "wrong barrier");
>
> Pre-existing bug:
>
> The assertion after the cast is wrong; if the barrier set is not of
> the indicated type, the preceding cast has already invoked undefined
> behavior.  There are more of these.
>
> I would *really* like to deal with
> https://bugs.openjdk.java.net/browse/JDK-8069016 first, before having
> BarrierSet::G1SATBCT addressed.  I have a fix that works, but need a
> little time to tidy it up and then get it reviewed. I've been
> distracted by other things recently, but hoped to get this out for
> review in the next couple of days.
>
> Unfortunately, I forgot to make JDK-8069016 a blocker for JDK-8067891.
>
>

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