RFR: 8257631: C2: Assertion failure in ArrayCopyNode::get_count() during late inlining

[Vladimir Ivanov]

On Fri, 4 Dec 2020 07:27:15 GMT, Tobias Hartmann <thartmann at openjdk.org> wrote:

>> The problematic assert in ArrayCopyNode::get_count() is specifically targeted at parsing phase, but it doesn't filter out late inlining which exposes the problematic IR shape the assert guards against.
>> 
>> Testing:
>> - [x] hs-tier1-6 w/ -XX:+AlwaysIncrementalInline
>
> Looks good.

Thanks for the reviews, Nils, Vladimir, and Tobias.

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PR: https://git.openjdk.java.net/jdk/pull/1581