Re: More on vectorized comparisons

[bearophile]

It's just syntax sugar for a very obscure operation,<

It's an operation included in Cilk Plus, I think Intel devs know
enough what they are doing.
And I think code like this is a common need:

if (a[] > 0) {
     // ...
}

and it's somewhat ambiguous -- is it allowed to use short-circuit evaluation?<

That code means:

foreach (i; 0 .. a.length) {
     if (a[i] > 0) {
         // ...
     }
}

Here I don't see problems caused by short circuit evaluation.

You can compare scalars, but ordered comparison of vectors is a bit nonsensical, unless it is element-wise.<

It's a comparison element-wise between each item and a constant,
it's similar to:

a[] = a[] + 5;

Probably you have misunderstood the semantics of what I am
discussing.

Bye,
bearophile