[10] RFR(M): 8176506: C2: loop unswitching and unsafe accesses cause crash

[Vladimir Kozlov]

Our internal testing of webrev.04 version of changes passed.

http://cr.openjdk.java.net/~roland/8176506/webrev.04/

One thing. I don't see changes for ppc64/s390x which Volker promised to 
provide. Do we need them in this latest version? What about SPARC?

Thanks,
Vladimir

On 6/2/17 12:46 AM, Roland Westrelin wrote:
> 
>> No I suggest using:
>>
>>   * @run main/othervm -Xbatch -XX:-UseOnStackReplacement
>> TestMaybeNullUnsafeAccess
>>
>>
>> instead of:
>>
>>   * @run main/othervm TestMaybeNullUnsafeAccess
>>
>> in test/compiler/unsafe/TestMaybeNullUnsafeAccess.java
> 
> Ok. Thanks, Volker. I'll make the change you suggested in the final
> change.
> 
> Anyone to sponsor this? I'll provide a ready to push changeset.
> 
> Roland.
>