• petermarshall's avatar
    Fastpath some spread-call desugaring. · a63eeb48
    petermarshall authored
    Avoid using the iterator for arrays with fast elements where the iterator has
    not been modified.
    
    Only deals with the case where there is a single spread argument.
    
    Improves the six-speed "spread" benchmark to 1.5x slower than baseline es5 implementation, compared to 19x slower previously.
    
    BUG=v8:5511
    
    Review-Url: https://codereview.chromium.org/2465253011
    Cr-Commit-Position: refs/heads/master@{#40998}
    a63eeb48
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