• bmeurer's avatar
    [turbofan] Introduce dedicated CallFrequency class. · 23ee7431
    bmeurer authored
    When we don't know the call count for a given call site (i.e. for
    inlined accessors), we put 0 as call frequency so far. But as of
    https://codereview.chromium.org/2859433002, this would completely
    disable the inlining of those calls, since 0 is interpreted as never
    called, which is not what we want. So instead of defaulting to 0,
    add a dedicated sentinel, whose value is NaN, which makes the call
    site eligible for inlining, but not high priority (as it was before
    the CL mentioned above).
    
    BUG=v8:4493,v8:5267
    R=jarin@chromium.org
    
    Review-Url: https://codereview.chromium.org/2856103002
    Cr-Commit-Position: refs/heads/master@{#45053}
    23ee7431
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