AARCH64: 8064611: Changes to HotSpot shared code
aph at redhat.com
Wed Dec 10 14:50:15 UTC 2014
On 12/10/2014 12:12 PM, Andrew Haley wrote:
> On 12/10/2014 11:34 AM, David Holmes wrote:
>> On 10/12/2014 8:59 PM, Andrew Haley wrote:
>> Won't the unconditional return for aarch64 cause unreachable code warnings?
> Not for me, but I can add an else if you like.
>> I'm not a C2 person but it seems strange to me that in one place if not
>> using barriers for volatile you do nothing; whereas in the other place
>> you insert Op_MemBarCPUOrder ??
> That's a fair comment. Unfortunately C2 breaks if there are only CPU
> barriers here, so I have to elide them in the back end. It is very
> unfortunate, but there are many places where C2 makes assumptions
> about the ideal graphs generated by the front end.
>> Shouldn't UseBarriersForVolatile only be false on aarch64 ??
> Oh gosh, however did I miss that? <red face>
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