review (XS) for 6478991: C1 NullCheckEliminator yields incorrect exceptions

[Igor Veresov]

Looks good.

igor

On 3/25/11 11:37 AM, Tom Rodriguez wrote:
> http://cr.openjdk.java.net/~never/6478991
>
> 6478991: C1 NullCheckEliminator yields incorrect exceptions
> Reviewed-by:
>
> checkcast can trap so don't allow explicit null checks to be folded into
> instructions that follow it.  Tested with new test case.