1. 10 Jul, 2017 38 commits
  2. 09 Jul, 2017 1 commit
  3. 08 Jul, 2017 1 commit
    • Benedikt Meurer's avatar
      [builtins] Port Map and Set iterators to CodeStubAssembler. · 3f22832b
      Benedikt Meurer authored
      This is the next step towards faster Map and Set iteration. It
      introduces the appropriate instance types for Map and Set
      iterators (following the pattern for Array iterators) and migrates
      the following builtins to the CodeStubAssembler:
      
        - Set.prototype.entries
        - Set.prototype.values
        - Map.prototype.entries
        - Map.prototype.keys
        - Map.prototype.values
        - %SetIteratorPrototype%.next
        - %MapIteratorPrototype%.next
      
      This already provides a significant performance boost for regular
      for-of iteration of Sets and Maps, by a factor of 5-10 depending
      on the input. The final step will be to inline some fast-paths
      into TurboFan.
      
      Drive-by-fix: Remove obsolete %IsJSSetIterator and %IsJSMapIterator
      intrinsics and runtime functions.
      
      Bug: v8:6571, chromium:740122
      Change-Id: Iad7a7dec643d8f8b5799327f89a351108ae856bf
      Reviewed-on: https://chromium-review.googlesource.com/563399
      Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
      Reviewed-by: 's avatarJakob Gruber <jgruber@chromium.org>
      Cr-Commit-Position: refs/heads/master@{#46492}
      3f22832b