On 09 November 2005 10:18, Ketil Malde wrote:
> Simon Marlow wrote:
>
>> Hmm yes, this is indeed rather unhelpful. I can explain why it
>> happens, though. The compiler has lifted out the error case into a
>> top-level binding:
>>
>> x = error "Error in array index"
>>
>>
> Would the compiler be less agressive with this if I turn off
> optimization? I usually use optimization with profiling as well, but
> could of course turn it off if it would result in more useful stack
> backtraces.
Possible... but not guaranteed. I think the simplifier does limited
forms of let-floating even without -O.
Cheers,
Simon
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