• Dominik Inführ's avatar
    [heap] Add flag to promote young objects in MC · 13ddba2a
    Dominik Inführ authored
    Add FLAG_always_promote_young_mc that always promotes young objects
    during a Full GC when enabled. This flag guarantees that the young gen
    and the sweeping remembered set are empty after a full GC.
    
    This CL also makes use of the fact that the sweeping remembered set is
    empty and only invalidates an object when there were old-to-new slots
    recorded on its page.
    
    Bug: chromium:1014943
    Change-Id: Idfb13dfbe76bad5ec8b485a60bebc30531aec649
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863201
    Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
    Reviewed-by: 's avatarUlan Degenbaev <ulan@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#64348}
    13ddba2a
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