1. 16 Mar, 2018 1 commit
  2. 07 Sep, 2016 1 commit
    • bmeurer's avatar
      [builtins] Migrate Number predicates and make them optimizable. · 7ac19fe5
      bmeurer authored
      Migrate the isNaN, isFinite, Number.isFinite, Number.isInteger,
      Number.isSafeInteger and Number.isNaN predicates to TurboFan
      builtins and make them optimizable (for certain input types) in
      JavaScript callees being optimized by TurboFan. That means both
      the baseline and the optimized version is now always at maximum,
      consistent performance. Especially TurboFan suffered from poor
      baseline (and optimized) performance because it cannot play the
      same weird tricks that Crankshaft plays for %_IsSmi.
      
      This also adds a bunch of new tests to properly cover the use
      of the Harmony predicates in optimized code.
      
      R=franzih@chromium.org
      BUG=v8:5049,v8:5267
      
      Review-Url: https://codereview.chromium.org/2313073002
      Cr-Commit-Position: refs/heads/master@{#39242}
      7ac19fe5