RFR(XS): 8235870: C2 crashes in IdealLoopTree::est_loop_flow_merge_sz()

[Nils Eliasson]

Hi Patrick,

Looks good!

Regards,
Nils Eliasson

On 2020-01-13 12:11, Patric Hedlin wrote:
> Dear all,
>
> I would like to ask for help to review the following change/update:
>
> Issue:  https://bugs.openjdk.java.net/browse/JDK-8235870
> Webrev: http://cr.openjdk.java.net/~phedlin/tr8235870/
>
> 8235870: C2 crashes in IdealLoopTree::est_loop_flow_merge_sz()
>
>     Method missing necessary checks, made more robust.
>
> Testing: hs-tier1-3, LuceneBench24H
>
>
> Best regards,
> Patric
>