> For `IS_DEST_UNINITIALIZED` it would never be valid for the > CardTableBarrierSet to do a pre-barrier. Currently `value_copy_in_heap` and > `value_store_null_in_heap` both iterates the oops and virtually calls into > the barriers sets pre barriers (of which all implementations are no-ops for > uninitialized values). > > Remove this as part of the `CardTableBarrierSet` interface. After this is > integrated I will upstream the relevant changes of this patch to mainline.
Axel Boldt-Christmas has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains four commits: - Merge remote-tracking branch 'upstream_valhalla/lworld' into JDK-8378521 - Update cardTableBarrierSet.inline.hpp - Update cardTableBarrierSet.inline.hpp - 8378521: [lworld] Completely remove pre-barriers in CardTableBarrierSet when IS_DEST_UNINITIALIZED for value stores ------------- Changes: https://git.openjdk.org/valhalla/pull/2200/files Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=2200&range=02 Stats: 41 lines in 5 files changed: 2 ins; 8 del; 31 mod Patch: https://git.openjdk.org/valhalla/pull/2200.diff Fetch: git fetch https://git.openjdk.org/valhalla.git pull/2200/head:pull/2200 PR: https://git.openjdk.org/valhalla/pull/2200
