tree 387e1ab848b9b1df9df466b1a89f5fe1d6b52d51
parent c712470bb9f23f6cb7668bb693168859329fa12d
author Ryan Macnak <rmacnak@google.com> 1533690222 +0000
committer Ryan Macnak <rmacnak@google.com> 1533690222 +0000

[vm, gc] Don't rebuild the remembered set during marking.

Instead, only filter dead objects from the remembered set at the end of marking.

Allows scavenges to occur during concurrent marking, and avoids changing the mutator to handle a race with the concurrent marker for the remembered bit.

Bug: https://github.com/dart-lang/sdk/issues/34002
Change-Id: I116d7acc8fb57b8c3088febe6c196030a40fb319
Reviewed-on: https://dart-review.googlesource.com/67841
Reviewed-by: Siva Annamalai <asiva@google.com>