• Jakob Gruber's avatar
    [snapshot] Clear reconstructable data prior to d8 stress_snapshot run · 3c422d1c
    Jakob Gruber authored
    The serializer currently cannot handle a heap state containing
    arbitrary compiled Code objects. As a quick fix for the
    --stress-snapshot d8 flag, we clear compiled data from the isolate
    prior to the serialize-deserialize-verify pass.
    
    With this change, mjsunit tests pass on x64.
    
    The %SerializeDeserializeNow() runtime function would require more
    work, since it is not possible to mutate the heap to this extent while
    still preserving a runnable host context and isolate. We will need
    another solution there.
    
    Drive-by: Skip the stress_snapshot variant except for the mjsunit
    suite.
    
    Tbr: machenbach@chromium.org
    Bug: v8:10493,v8:10416
    Change-Id: Ie110da8b51613fcd69c7f391d3cf8589d6b04dd8
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2182429Reviewed-by: 's avatarJakob Gruber <jgruber@chromium.org>
    Reviewed-by: 's avatarUlan Degenbaev <ulan@chromium.org>
    Commit-Queue: Jakob Gruber <jgruber@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#67585}
    3c422d1c
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