[13] RFR (S): 8059241: C2: Excessive RemoveUseless passes during incremental inlining

[Aleksey Shipilev]

On 1/25/19 4:18 AM, Vladimir Ivanov wrote:
> http://cr.openjdk.java.net/~vlivanov/8059241/webrev.03/
> 
> I ran Octane w/ -XX:+CITime and observed significant reduction in "Incremental Inline" times (~50%
> off on IGVN, 80-95% off on "Prune Useless").

Yes, I see "Prune Useless" going down with -XX:+CITime with this patch. However, I suspect there are
performance regressions, and I am not able to verify them until this one is fixed:
  https://bugs.openjdk.java.net/browse/JDK-8217782

-Aleksey

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