Hi Phil,
Congratulations, you have found a bug in Factor.
Here is a simple test case:
ulong-array virtual-sequence classes-intersect? . => t
I will fix this soon.
Slava
Phil Dawes wrote:
> Hi Slava, Hi Factor list,
>
> I'm attempting to optimize the generated machine code for a reduce
> across a 32bit array, but I don't seem to be able to get the optimizer
> to inline the method 'nth-unsafe' even when it knows the argument is of
> my ulong-array class. 'length' however gets inlined fine:
>
> ( scratchpad ) [ { ulong-array } declare length ] f optimized-quot.
> [ 5 slot ]
>
> ( scratchpad ) [ { ulong-array } declare nth-unsafe ] f optimized-quot.
> [ nth-unsafe ]
>
> the nth-unsafe method is:
>
> TUPLE: ulong-array address length ;
>
> M: ulong-array nth-unsafe ulong-array-address ulong-nth ;
>
> Is there a trick I'm missing here? I had a glance through
> optimizer.inlining and found 'method-body-inline?' which tests if the
> method's flat-length is <=10 before inlining. I had a play with this but
> could only come up with '4'.
>
> ( scratchpad ) \ ulong-array \ nth-unsafe method flat-length .
> 4
>
> Any pointers would be much appreciated,
>
> Many thanks,
>
> Phil
>
>
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