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Module Flambda_primitive.Eligible_for_cse

type t

Primitive applications that may be replaced by a variable which is let bound to a single instance of such application. Primitives that are genuine projections (e.g. Block_load, etc.) are not eligible, since the associated information is propagated through types, not CSE.

include Flambda2_nominal.Contains_names.S with type t := Flambda2_terms.Flambda_primitive.Eligible_for_cse.t

Compute the free names of a term. Such computation covers all kinds of bindable names (variables, continuations, ...)

val create_is_int : variant_only:bool -> immediate_or_block:Flambda2_identifiers.Name.t -> Flambda2_terms.Flambda_primitive.Eligible_for_cse.t
include Flambda2_algorithms.Container_types.S with type t := Flambda2_terms.Flambda_primitive.Eligible_for_cse.t
include Flambda2_algorithms.Container_types_intf.Thing with type t := Flambda2_terms.Flambda_primitive.Eligible_for_cse.T.t
include Stdlib.Hashtbl.HashedType with type t := Flambda2_terms.Flambda_primitive.Eligible_for_cse.T.t

A hashing function on keys. It must be such that if two keys are equal according to equal, then they have identical hash values as computed by hash. Examples: suitable (equal, hash) pairs for arbitrary key types include

  • ((=), hash) for comparing objects by structure (provided objects do not contain floats)
  • ((fun x y -> compare x y = 0), hash) for comparing objects by structure and handling Stdlib.nan correctly
  • ((==), hash) for comparing objects by physical equality (e.g. for mutable or cyclic objects).
include Stdlib.Map.OrderedType with type t := Flambda2_terms.Flambda_primitive.Eligible_for_cse.T.t

A total ordering function over the keys. This is a two-argument function f such that f e1 e2 is zero if the keys e1 and e2 are equal, f e1 e2 is strictly negative if e1 is smaller than e2, and f e1 e2 is strictly positive if e1 is greater than e2. Example: a suitable ordering function is the generic structural comparison function Stdlib.compare.