Review request: 7195935: NPG: Some issues with compressed oops

[Coleen Phillimore]

Good find!   This should work fine until Roland's changes to properly 
separate compressed oops and klass pointers in compiled code are finished.
Thanks,
Coleen

On 9/5/2012 4:51 AM, Stefan Karlsson wrote:
> http://cr.openjdk.java.net/~stefank/7195935/webrev/
>
> 7195935: NPG: Some issues with compressed oops
> Summary: Don't decompress the klass pointer in the G1 pre-barrier code 
> when !UseCompressedKlassPointers
>
> The code mimics the behavior in LIRGenerator::do_getClass, including 
> using T_OBJECT as the type for src_klass:
> LIR_Opr src_klass = new_register(T_OBJECT);
>
> StefanK