• Georg Neis's avatar
    Reland "[turbofan] Various serializer/broker improvements" · 4b1af9fc
    Georg Neis authored
    This is a reland of 29585a06 after
    removing an incorrect DCHECK.
    
    Original change's description:
    > [turbofan] Various serializer/broker improvements
    >
    > They are all somewhat entangled, sorry for the big CL.
    >
    > - Brokerize remaining feedback vector slots.
    > - Introduce Hints::SingleConstant helper.
    > - Introduce SerializationPolicy enum.
    > - Eliminate use of nullptr for megamorphic load/store ic feedback.
    >   Instead use the corresponding ProcessedFeedback with an empty list
    >   of maps or the like. new class MegamorphicFeedback.
    > - Separate processing of feedback from serialization. This eliminates
    >   code duplication.
    > - Be very careful when clearing hints not to overwrite hints that are
    >   being processed.
    > - Move AccessInfos out of NamedAccessFeedback. Always store them in
    >   property_access_infos_ map on broker. (This was actually unused
    >   before, somewhat by mistake.)
    > - Support map inference in concurrent inlining. Rewrite
    >   ElementAccessFeedback such that we can refine it with the set of
    >   inferred maps.
    >
    > TBR: mvstanton@chromium.org
    > Change-Id: I05e9eb250bdffc6dff29db01742550a86a41cb31
    > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1752853
    > Commit-Queue: Georg Neis <neis@chromium.org>
    > Reviewed-by: Georg Neis <neis@chromium.org>
    > Cr-Commit-Position: refs/heads/master@{#63232}
    
    TBR: mvstanton@chromium.org
    Bug: v8:7790
    Change-Id: Ia4acd31b339a941ee065e1ae4835bb7b85d5685e
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1758319Reviewed-by: 's avatarGeorg Neis <neis@chromium.org>
    Commit-Queue: Georg Neis <neis@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#63241}
    4b1af9fc
processed-feedback.h 6.18 KB