[13] RFR (T): 8217919: C2: Enable -XX:+AggressiveUnboxing by default

[Vladimir Ivanov]

Thanks, Vladimir and Nils.

Best regards,
Vladimir Ivanov

On 01/02/2019 01:20, Nils Eliasson wrote:
> +1
> 
> / Nils
> 
> On 2019-02-01 06:48, Vladimir Kozlov wrote:
>> Agree.
>>
>> Thanks,
>> Vladimir
>>
>> On 1/31/19 11:16 AM, Vladimir Ivanov wrote:
>>> http://cr.openjdk.java.net/~vlivanov/8217919/webrev.00/
>>> https://bugs.openjdk.java.net/browse/JDK-8217919
>>>
>>> Once JDK-8217918 [1] is fixed, I propose to enable 
>>> -XX:+AggressiveUnboxing by default.
>>>
>>> The optimization noticeably improves EA for primitive boxes (e.g., 
>>> JDK-8055340 [2]), so it's worth having it turned on. It'll also 
>>> ensure the code won't rot again.
>>>
>>> Testing: hs-precheckin-comp, tier1-5
>>>
>>> Best regards,
>>> Vladimir Ivanov
>>>
>>> [1] https://bugs.openjdk.java.net/browse/JDK-8217918
>>> [2] https://bugs.openjdk.java.net/browse/JDK-8055340