RFR (S) 8150514: C1 crashes in Canonicalizer::do_ArrayLength() after fix for JDK-8150102

[Tobias Hartmann]

Hi Aleksey,

On 24.02.2016 10:10, Aleksey Shipilev wrote:
> Hi,
> 
> The C1 Canonicalizer fix for arraylength folding (JDK-8150102) crashes
> the VM when array constant is "null", and ArrayConstant is not
> available. This happens every so often in nightly testing.
> 
> Here is a quick fix for that:
>   http://cr.openjdk.java.net/~shade/8150514/webrev.01/

Looks good to me.

> Testing: regression test in Linux x86_64/fastdebug

Please don't use bug numbers for test names/folders but use a name describing the purpose of the test.

Best regards,
Tobias

> 
> Thanks,
> -Aleksey
>