Re: Loop Optimizations and Gotos

>Dave Lloyd <dave@occl-cam.demon.co.uk> wrote:
>>It's simple - don't use goto. Many compilers have extra levels of
>>optimisation that only kick in when a control construct can be
>>clearly recognised that are not feasible in general for gotos.


and hrubin@stat.purdue.edu (Herman Rubin) writes:
>I suggest then that the fault is in the compiler writers.


and the moderator wrote:


>Herman's opinions on the merits of gotos have been argued at length
>before and I'd rather not rehash the arguments here again.


Nevertheless, I agree with Rubin in this case. If a compiler doesn't
recognize a loop built out of if's and goto's, the compiler writer was
a little lazy.


On the other hand, for portable performance across a range of
compilers, perhaps it's better to be conservative. Or simply test the
compiler before you pay for it.


Preston Briggs
--

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