[8u40] RFR(S): 8048879: "unexpected yanked node" opto/postaloc.cpp:139

[Tobias Hartmann]

Hi,

please review this 8u40 backport request. The changes were pushed two 
weeks ago and nightly testing showed no problems.

The patch applies cleanly to 8u40.

Master Bug: https://bugs.openjdk.java.net/browse/JDK-8048879
Webrev: http://cr.openjdk.java.net/~thartmann/8048879/webrev.00/
Changeset: http://hg.openjdk.java.net/jdk9/hs-comp/hotspot/rev/7c8d05c88072

Thanks,
Tobias