RFR: JDK-8212053: A few more missing object equals barriers

[Zhengyu Gu]

Good to me.

Thanks,

-Zhengyu

On 10/11/2018 12:53 PM, Roman Kennke wrote:
>   Testing and code analysis have revealed a couple more places where we
> need oopDesc::equals() or oopDesc::equals_raw(). Those should really be
> the last ones (notwithstanding new code of course):
> 
> in compressed oops, we should use equals_raw() because it's only used to
> verify that we encoded/decoded the oop correctly a few lines above. It
> cannot have been changed yet. In vframe, we need the usual
> oopDesc::equals(..) because we may see different copies of the same object.
> 
> Bug:
> https://bugs.openjdk.java.net/browse/JDK-8212053
> Webrev:
> http://cr.openjdk.java.net/~rkennke/JDK-8212053/webrev.00/
> 
> Builds and runs hotspot/tier1 fine.
> 
> Ok?
> 
> Roman
>