Module `Flambda2_simplify.Flow_analysis`

Dataflow analysis.

This module aims mainly at tracking uses of variables (other things may be added later on), with the aim of:

removing unused parameters of *recursive* continuations;

moving allocations out of the hot path of recursive continuations (e.g. the allocation of a float that was unboxed by the simplifier).

val analyze : 
  ?speculative:bool ->
  ?print_name:string ->
  machine_width:Target_system.Machine_width.t ->
  return_continuation:Flambda2_identifiers.Continuation.t ->
  exn_continuation:Flambda2_identifiers.Continuation.t ->
  code_age_relation:Flambda2_types.Code_age_relation.t ->
  used_value_slots:
    Flambda2_nominal.Name_occurrences.t Flambda2_lattices.Or_unknown.t ->
  code_ids_to_never_delete:Flambda2_identifiers.Code_id.Set.t ->
  specialization_map:
    Flambda2_identifiers.Continuation.t
      Flambda2_identifiers.Continuation_callsite_map.t ->
  Flow_types.Acc.t ->
  Flow_types.Flow_result.t

Analyze the uses.

val did_perform_mutable_unboxing : Flow_types.Flow_result.t -> bool

true iff the mutable unboxing pass actually did unbox things

val added_useful_alias_in_loop : 
  Flambda2_types.Typing_env.t ->
  Flow_types.Acc.t ->
  Flow_types.Flow_result.t ->
  bool

Module Flambda2_simplify.Flow_analysis

Module `Flambda2_simplify.Flow_analysis`