tree a32c3976753da46d5368a1863c1b9072b75d5cfd
parent 277da370dd517af0d6a27bef3b86d5f259feda62
author Hiroshi Yamauchi <yamauchi@google.com> 1449877864 -0800
committer Hiroshi Yamauchi <yamauchi@google.com> 1450295682 -0800

Fix (non-intrinsic) UnsafeCASObject for the read barrier config.

Make sure the field contains a to-space reference before attempting the
CAS with a special read barrier to avoid an incorrect CAS failure.

This is only about the non-intrinsic UnsafeCASObject.

This seems to fix some jsr166 test failures.

Also, remove the unused template parameter kMaybeDuringStartup.

Bug: 25883050
Bug: 12687968

Change-Id: Ia6f0d882fa3d90c42f14968672d547babcdf6309