• zhengxing.li's avatar
    X87: [runtime] Introduce FastNewStrictArgumentsStub to optimize strict arguments. · 82289a98
    zhengxing.li authored
      port 09d84535(r33925)
    
      original commit message:
      The FastNewStrictArgumentsStub is very similar to the recently added
      FastNewRestParameterStub, it's actually almost a copy of it, except that
      it doesn't have the fast case we have for the empty rest parameter. This
      patch improves strict arguments in TurboFan and fullcodegen by up to 10x
      compared to the previous version.
    
      Also introduce proper JSSloppyArgumentsObject and JSStrictArgumentsObject
      for the in-object properties instead of having them as constants in the
      Heap class.
    
      Drive-by-fix: Use this stub and the FastNewRestParameterStub in the
      interpreter to avoid the runtime call overhead for strict arguments
      and rest parameter creation.
    
    BUG=
    
    Review URL: https://codereview.chromium.org/1706703002
    
    Cr-Commit-Position: refs/heads/master@{#34055}
    82289a98
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