• mstarzinger's avatar
    Fix stale entries in optimized code map. · d4ac509f
    mstarzinger authored
    This fixes a corner-case where extending an optimized code map left
    stale entries in the abandoned copy. This can cause havoc not only in
    the heap verifier but also in the GC, because stale entries have not
    been recorded when being trated weakly.
    
    Note that this also pre-tenures all optimized code maps into old-space
    because their lifetime is coupled to the SharedFunctionInfo anyways.
    
    R=hpayer@chromium.org
    TEST=cctest/test-heap/Regress514122
    BUG=chromium:514122
    LOG=N
    
    Review URL: https://codereview.chromium.org/1277873002
    
    Cr-Commit-Position: refs/heads/master@{#30047}
    d4ac509f
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