• jgruber's avatar
    [regexp] Port RegExpConstructor to C++ · d5151564
    jgruber authored
    This moves the RegExp constructor to C++. Local runs of octane/regexp are
    performance-neutral:
    
    C++: 4970.1 +- 404.981
    JS: 4869.2 +- 586.743
    
    That's probably only the case because exec and replace dominate
    octane/regexp. There's potential for improvement here, for instance by
    adding a fast-path if new.target is an unmodified JSRegExp function.
    
    BUG=v8:5339
    
    Review-Url: https://codereview.chromium.org/2384613004
    Cr-Commit-Position: refs/heads/master@{#39981}
    d5151564
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