[Haskell-cafe] fast Eucl. dist. - Haskell vs C
dons at galois.com
Mon May 18 14:34:15 EDT 2009
>>> Once I actually add a 'dist_fast_inline_caller', that indirection
>>> disappears in the inlined code, just as it does for dist_fast itself.
>>> dist_fast_inlined_caller :: UArr Double -> UArr Double -> Bool
>>> dist_fast_inlined_caller p1 p2 = dist_fast_inlined p1 p2 > 2
>>> However, in the simpl output for 'dist_fast_inline_caller', the
>>> 'sumU' and 'zipWithU' still don't seem to be fused - Don?
>> All the 'seq's and so on should be unnecessary, and even so, I still get
>> the expected fusion:
> As I said, I don't get the fusion if I just add the function above to the
> original Dist.hs, export it and compile the module with '-c -O2
I can't reproduce this.
Does the complete program fragment I posted earlier yield the desired
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