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27 lines
793 B
27 lines
793 B
(*
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* Copyright (c) 2013 - present Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*)
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open! IStd
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(** Environment for temporary identifiers used in instructions.
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Lazy implementation: only created when actually used. *)
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type t
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val create : Procdesc.t -> t
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val create_from_idenv : t -> Procdesc.t -> t
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val lookup : t -> Ident.t -> Exp.t option
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val expand_expr : t -> Exp.t -> Exp.t
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val exp_is_temp : t -> Exp.t -> bool
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(** Stronger version of expand_expr which also expands a temporary variable. *)
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val expand_expr_temps : t -> Procdesc.Node.t -> Exp.t -> Exp.t
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