RFR (XS): 8211046: Forced data dependencies serve no purpose on x86

David Holmes david.holmes at oracle.com
Fri Oct 12 03:47:18 UTC 2018

Bug: https://bugs.openjdk.java.net/browse/JDK-8211046
webrev: http://cr.openjdk.java.net/~dholmes/8211046/webrev/

The fix for this is to look at the code prior to 8188764 and delete all 
the os::is_MP code, and keep only the !is_MP code.

Testing: tier 1-3


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