I wonder if Perl performs common subexpression elimination?
And what kind of optimisations are done?
I wonder if Perl performs common subexpression elimination? And what kind of optimisations are
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I wonder if Perl performs common subexpression elimination?
And what kind of optimisations are done?
No, but I do.
Now, I don’t unroll loops by hand, because loops are an easier concept once you’re familiar with programming. Because you could be doing anything with a sequence of commands, the loop makes it clear that you’re repeating a task.
But CSE is something that makes more efficient code regardless of the implementation of the language. So I do it. It doesn’t make the code baroque, and it works in languages where it’s not automatically included.
Perl offers compression of syntax so there are often less subexpressions that have to be hand-eliminated.