[14] RFR(S): 8228772: C2 compilation fails due to unschedulable graph if DominatorSearchLimit is reached

Tobias Hartmann tobias.hartmann at oracle.com
Mon Aug 5 13:45:29 UTC 2019


On 05.08.19 16:51, Nils Eliasson wrote:
> ok, but then the store and the load doesn't alias, and no anti-dependence edge is actually needed.

It's a membar and they are handled as being anti-dependent on everything. See this comment:
http://hg.openjdk.java.net/jdk/jdk/file/90dcbeb8455e/src/hotspot/share/opto/gcm.cpp#l635

> Perhaps that info isn't handled correctly by the anti-dep-checker. That is something we need to
> revisit for 14.

Are you okay with filing a JDK 14 RFE for that?

Thanks,
Tobias


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