has_side_effects = True
out_of_line = True
+primop NumSparks "numSparks#" GenPrimOp
+ State# s -> (# State# s, Int# #)
+ { Returns the number of sparks in the local spark pool. }
+ with
+ has_side_effects = True
+ out_of_line = True
+
-- HWL: The first 4 Int# in all par... annotations denote:
-- name, granularity info, size of result, degree of parallelism
-- Same structure as _seq_ i.e. returns Int#
{\tt inline} function expands to the identity function in Phase zero; so its
use imposes no overhead.
- If the function is defined in another module, GHC only exposes its inlining
- in the interface file if the function is sufficiently small that it might be
- inlined by the automatic mechanism. There is currently no way to tell GHC to
- expose arbitrarily-large functions in the interface file. (This shortcoming
- is something that could be fixed, with some kind of pragma.) }
+ It is good practice to mark the function with an INLINABLE pragma at
+ its definition, (a) so that GHC guarantees to expose its unfolding regardless
+ of size, and (b) so that you have control over exactly what is inlined. }
pseudoop "lazy"
a -> a