[9] RFR (XS): 8150933: System::arraycopy intrinsic doesn't mark mismatched loads

[Vladimir Ivanov]

Vladimir, Aleksey, thanks.

Best regards,
Vladimir Ivanov

On 3/1/16 6:59 PM, Vladimir Kozlov wrote:
> Seems fine.
>
> Thanks,
> Vladimir
>
> On 3/1/16 7:52 AM, Vladimir Ivanov wrote:
>> https://bugs.openjdk.java.net/browse/JDK-8150933
>> http://cr.openjdk.java.net/~vlivanov/8150933/webrev.00
>>
>> System.arraycopy intrinsic produces a mismatched access for unaligned
>> case, but doesn't mark it as such.
>>
>> Also, added a check to avoid constant folding when mismatched access
>> happens. It allows to produce correct code in product binaries, but
>> signals about the problem when fastdebug binaries are used.
>>
>> Testing: failing tests, JPRT.
>>
>> Best regards,
>> Vladimir Ivanov