Although I don't see anything wrong with this patch, I am unclear of the
motivation. Is there a clear performance win by eliminating the eliminating
the
duplicate smi check? Have you tried to quantify the improvement and is it
measurable?
If not, I suspect that having more compact code rather is more important
than
squeezing a cycle or two more out of a loop, especially if it will end up
Crankshafted anyway if it's a performance bottleneck.
https://codereview.chromium.org/22935005/
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