take package:ghc

See if this instruction is telling us the current C stack delta

Take the source and destination registers from a move instruction of same register class (RegClass). The idea is to identify moves that can be eliminated by the register allocator: If the source register serves no special purpose, one could continue using it; saving one move instruction. For this, the register kinds (classes) must be the same (no conversion involved.)

Take all the real registers from this set.

Take all the virtual registers from this set.

See if this instruction is telling us the current C stack delta

Take the source and destination from this reg -> reg move instruction or Nothing if it's not one

Take the source and destination from this reg -> reg move instruction or Nothing if it's not one

Take the source and destination from this (potential) reg -> reg move instruction We have to be a bit careful here: A MOV can also mean an implicit conversion. This case is filtered out.

Check whether an instruction represents a reg-reg move. The register allocator attempts to eliminate reg->reg moves whenever it can, by assigning the src and dest temporaries to the same real register.

Take while a predicate on the keys holds. The user is responsible for ensuring that for all Ints, j < k ==> p j >= p k. See note at spanAntitone.

takeWhileAntitone p = fromDistinctAscList . takeWhile (p . fst) . toList
takeWhileAntitone p = filterWithKey (\k _ -> p k)

Take while a predicate on the elements holds. The user is responsible for ensuring that for all Ints, j < k ==> p j >= p k. See note at spanAntitone.

takeWhileAntitone p = fromDistinctAscList . takeWhile p . toList
takeWhileAntitone p = filter p

Obtain the Unique from this particular UniqSupply, and a new supply

unpackPtrStringTakeN n = take n . unpackPtrString but is performed in <math> rather than <math>, where <math> is the length of the PtrString.

zStringTakeN n = take n . zString but is performed in <math> rather than <math>, where <math> is the length of the FastZString.