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infer_clone/sledge/src/domain_used_globals.mli

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[sledge] Add used-globals abstract domain and transfer functions Summary: Adds an abstract domain to track global variable usages, as well as supporting changes to the frontend, IR and CLI. This analysis will support optimizations to the main symbolic-heap analysis, but for now can be invoked independently through the `-domain` flag on `analyze` targets of the Sledge executable. Reviewed By: jberdine Differential Revision: D17422212 fbshipit-source-id: 74bed0a76
5 years ago
(*
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*)
(** Used-globals abstract domain *)
[sledge] Add LLAIR expression form for globals Summary: Distinguish expressions that name globals from registers. This leads to clearer code, and globals are semantically distinct from general registers. In particular, they are constant, so any machinery for handling assignment does not need to consider them. This diff only adds the distinction to LLAIR, it is not pushed through to FOL, which will come later. Reviewed By: jvillard Differential Revision: D24846676 fbshipit-source-id: 3aca025bf
4 years ago
include Domain_intf.Dom with type summary = Llair.Global.Set.t
[sledge] Refactor Used globals analysis results type and query Summary: The Used globals (pre-)analysis produces results queried by Control. This diff adds a type definition for these and moves the query into the Used_globals module. Reviewed By: bennostein Differential Revision: D17856879 fbshipit-source-id: 0211b82d7
5 years ago
type r =
[sledge] Add LLAIR expression form for globals Summary: Distinguish expressions that name globals from registers. This leads to clearer code, and globals are semantically distinct from general registers. In particular, they are constant, so any machinery for handling assignment does not need to consider them. This diff only adds the distinction to LLAIR, it is not pushed through to FOL, which will come later. Reviewed By: jvillard Differential Revision: D24846676 fbshipit-source-id: 3aca025bf
4 years ago
| Per_function of Llair.Global.Set.t Llair.Function.Map.t
[sledge] Refactor Used globals analysis results type and query Summary: The Used globals (pre-)analysis produces results queried by Control. This diff adds a type definition for these and moves the query into the Used_globals module. Reviewed By: bennostein Differential Revision: D17856879 fbshipit-source-id: 0211b82d7
5 years ago
(** per-function used-globals map *)
[sledge] Add LLAIR expression form for globals Summary: Distinguish expressions that name globals from registers. This leads to clearer code, and globals are semantically distinct from general registers. In particular, they are constant, so any machinery for handling assignment does not need to consider them. This diff only adds the distinction to LLAIR, it is not pushed through to FOL, which will come later. Reviewed By: jvillard Differential Revision: D24846676 fbshipit-source-id: 3aca025bf
4 years ago
| Declared of Llair.Global.Set.t (** program-wide set *)
[sledge] Refactor Used globals analysis results type and query Summary: The Used globals (pre-)analysis produces results queried by Control. This diff adds a type definition for these and moves the query into the Used_globals module. Reviewed By: bennostein Differential Revision: D17856879 fbshipit-source-id: 0211b82d7
5 years ago
[sledge] Add LLAIR expression form for function names Summary: Distinguish expressions that name functions from registers. This leads to clearer code, and function names are semantically distinct from general registers. In particular, they are constant, so any machinery for handling assignment does not need to consider them. Unlike general globals, they never have initializer expressions, and in particular not recursive initializers. This diff only adds the distinction to LLAIR, it is not pushed through to FOL, which will come later. Reviewed By: jvillard Differential Revision: D24846672 fbshipit-source-id: 2101f353f
4 years ago
val by_function : r -> Llair.Function.t -> summary