RFR: 8141501: Problems with BitMap buffer management

[Kim Barrett]

> On May 2, 2016, at 5:00 AM, Stefan Karlsson <stefan.karlsson at oracle.com> wrote:
> 
> Hi Kim,
> 
> Updated webrevs:
> http://cr.openjdk.java.net/~stefank/8141501/webrev.03.delta
> http://cr.openjdk.java.net/~stefank/8141501/webrev.03
> 
> Comments inlined:
> 
> On 2016-04-30 19:01, Kim Barrett wrote:
[…]
>> src/share/vm/c1/c1_LinearScan.cpp
>>  718     block->set_live_in  (ResourceBitMap(live_size)); block->live_in().clear();
>>  719     block->set_live_out (ResourceBitMap(live_size)); block->live_out().clear();
>> 
>> Consider instead
>> 
>>   block->live_in().reinitialize(live_size);
>>   block->live_out().reinitialize(live_size);
> 
> I intend to remove the call to clear() with the fix for this bug:
> https://bugs.openjdk.java.net/browse/JDK-8155638
> 
> So, I'd like to do this suggestion as a part of that change.

OK.