On Wed, 25 Nov 2020 23:35:14 GMT, Vladimir Kozlov <k...@openjdk.org> wrote:
>> JDK-8188055 added the function Reference.refersTo. For performance, the >> supporting native methods Reference.refersTo0 and PhantomReference.refersTo0 >> should be intrinsified by C2. >> >> Initial patch was prepared by @fisk. >> >> Tested hs-tier1-4. Added new compiler tests to test intrinsics. >> >> Ran new test with Shenandoah. Found only one issue. As result I disable >> PhantomReference::refersTo intrinsic for COOP+ Shenandoah combination. >> Someone from Shenandoah team have to test changes if that is enough. > > Vladimir Kozlov has updated the pull request with a new target base due to a > merge or a rebase. The incremental webrev excludes the unrelated changes > brought in by the merge/rebase. The pull request contains three additional > commits since the last revision: > > - Merge branch 'master' into JDK-8256999 > - Added ZLoadBarrierElided = 0 definition. > Removed is_exact argument in load_field_from_object(). > Added Shenandoah support for narrow phantom accesses. > - 8256999: Add C2 intrinsic for Reference.refersTo and > PhantomReference::refersTo Marked as reviewed by vlivanov (Reviewer). ------------- PR: https://git.openjdk.java.net/jdk/pull/1425
