Commit e15ea086 authored by Hiroshi Yamauchi's avatar Hiroshi Yamauchi
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Reserve bits in the lock word for read barriers. 

This prepares for the CC collector to use the standard object header
model by storing the read barrier state in the lock word.

Bug: 19355854
Bug: 12687968
Change-Id: Ia7585662dd2cebf0479a3e74f734afe5059fb70f
parent 0b25c71a
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