[erlang-questions] naive execution of guards
Tue Dec 12 19:41:51 CET 2006
On 12-Dec-06, at 1:35 PM, Thomas Lindgren wrote:
> --- "Ulf Wiger (TN/EAB)" <>
>> I was curious to see whether the compiler would
>> optimize away repeated
>> use of the length/1 guard, e.g in the following
>> I'm sure it's tricky, and I don't know if the above
>> reasons are strong
> Actually, this optimization is ordinary elimination of
> common subexpressions, and so should be relatively
> straightforward to implement.
Especially since the subexpressions are already guaranteed side-
effect free (right?)
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