1. 04 Mar, 2019 1 commit
  2. 29 Nov, 2016 2 commits
    • bmeurer's avatar
      [turbofan] Also optimize instanceof with bound functions. · 719d6c1d
      bmeurer authored
      For bound functions on the right-hand side of instanceof we can
      constant-fold to the actual [[BoundTargetFunction]], actually
      instance OrdinaryHasInstance. Move the Function.prototype[@@hasInstance]
      reduction up to the JSCallReducer to allow this optimization to become
      effective (and also enable other optimizations).
      
      BUG=v8:5267
      R=jarin@chromium.org
      
      Review-Url: https://codereview.chromium.org/2537763002
      Cr-Commit-Position: refs/heads/master@{#41352}
      719d6c1d
    • bmeurer's avatar
      [turbofan] Add appropriate types to express Callable. · 777e142c
      bmeurer authored
      This introduces three new types OtherCallable, CallableProxy (and OtherProxy),
      and BoundFunction to make it possible to express Callable in the Type system.
      It also forces all undetectable receivers to be Callable, which matches the
      use case for undetectable, namely document.all (guarded by proper checks and
      tests).
      
      It also uses these new types to properly optimize instanceof (indirectly via
      OrdinaryHasInstance) based on the type of the constructor and the object. So
      we are able to constant-fold certain instanceof expressions based on types
      and completely avoid the builtin call.
      
      R=jarin@chromium.org
      BUG=v8:5267
      
      Review-Url: https://codereview.chromium.org/2535753004
      Cr-Commit-Position: refs/heads/master@{#41345}
      777e142c