No. I verified that the case of for(LIST(@_)){ ... } is optimized away into for(@_){ ... } because that is what is in the original code. I also (since you just asked) tried for(@A,@B), for(@A,@B,1) and in all cases the list op was removed. Maybe the list op shows back up when there is something non-simple to read from - functions and builtins.

In reply to Re: Re: Re: Re: Optimizing the bejeezus out of a sub by diotalevi
in thread Optimizing the bejeezus out of a sub by sgifford

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