• Mike Stanton's avatar
    [Builtins] Array.prototype.splice performance improvements · 696b2ced
    Mike Stanton authored
    a) The current size of the backing store for the array under splice
        wasn't considered. Additionally, allocate the array with the
        normal growing strategy.
    
    b) Use primitives memcpy and memmove when
       appropriate. These calls are wrapped in new CSA functions
       MoveElements and CopyElements, which use the C functions when a
       write barrier isn't needed (otherwise they just copy elements
       in a loop).
    
    Bug: chromium:880780
    Change-Id: I39a917c71036f52250c68f2cced77a1c24f97b67
    Reviewed-on: https://chromium-review.googlesource.com/c/1243104
    Commit-Queue: Michael Stanton <mvstanton@chromium.org>
    Reviewed-by: 's avatarTobias Tebbi <tebbi@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#56534}
    696b2ced
code-stub-assembler.h 154 KB