review(XS) 7033732: C1: When calling c2 arraycopy stubs offsets and length must have clear upper 32bits

[Vladimir Kozlov]

Good.

Vladimir

Igor Veresov wrote:
> With 7033154 we started calling c2 arraycopy stubs from c1. On sparcv9 
> we must clear the upper 32bits for offset (src_pos, dst_pos) and length 
> parameters when calling them.
> 
> Tested with failing nightlies.
> 
> Webrev: http://cr.openjdk.java.net/~iveresov/7033732/webrev.00/
> 
> igor