Changes between Version 21 and Version 22 of DataParallel/VectPragma
 Timestamp:
 Aug 22, 2011 2:29:32 PM (4 years ago)
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DataParallel/VectPragma
v21 v22 14 14 then the vectoriser defines `f_v = e` and refrains from rebinding `f`. This implies that for `f :: t`, `e`'s type is the `t` vectorised (in particular), `e`'s type uses the array closure type `(:>)` instead of the vanilla function space `(>)`. The vectoriser checks that `e` has the appropriate type. 15 15 16 This pragma can also be used for imported functions `f`. In this case, `f_v` and a suitable vectorisation mapping of `f` to `f_v` is exported iff `f` is reexported; otherwise, it is only available in the module in which the pragma is located. By reexporting a vectorised imported function, we can vectorise functions of modules that have not been compiled with `fvectorise`. This is crucial to using the standard `Prelude` in vectorised code. 17 16 18 '''IMPLEMENTATION RESTRICTION:''' Currently the righthand side of the equation —i.e., `e`— may only be a simple identifier '''and''' it must be at the correct type instance. More precisely, the Core type of the righthand side must be identical to the vectorised version of `t`. 19 17 20 18 21 == The NOVECTORISE pragma for values == … … 52 55 }}} 53 56 and so on. (The variable `f` must have a proper function type.) 57 58 This pragma can also be used on imported functions `f`, in the same manner as the plain `VECTORISE` pragma. 54 59 55 60