[biabduction] don't specialise models

Summary:
Models are currently not specialised*. Remove the ability entirely, to allow further changes.

*this is proved by the fact that Infer doesn't crash, which it would if it tried to specialise models, because their procdesc is the already pre-analysed one, and pre-analysing twice a procdesc will crash.

Reviewed By: jvillard

Differential Revision: D25027698

fbshipit-source-id: 76ae5fa0d

infer/src/IR/Attributes.ml

@@ -84,21 +84,6 @@ let store ~proc_desc (attr : ProcAttributes.t) =
       ~callees
 
 
-let find_file_capturing_procedure pname =
-  Option.map (load pname) ~f:(fun proc_attributes ->
-      let source_file = proc_attributes.ProcAttributes.translation_unit in
-      let origin =
-        (* Procedure coming from include files if it has different location than the file where it
-           was captured. *)
-        match SourceFile.compare source_file proc_attributes.ProcAttributes.loc.file <> 0 with
-        | true ->
-            `Include
-        | false ->
-            `Source
-      in
-      (source_file, origin) )
-
-
 let pp_attributes_kind f = function
   | ProcUndefined ->
       F.pp_print_string f "<undefined>"

infer/src/IR/Attributes.mli

@@ -19,8 +19,4 @@ val store : proc_desc:Procdesc.t option -> ProcAttributes.t -> unit
 val load : Procname.t -> ProcAttributes.t option
 (** Load the attributes for the procedure from the attributes database. *)
 
-val find_file_capturing_procedure : Procname.t -> (SourceFile.t * [`Include | `Source]) option
-(** Find the file where the procedure was captured, if a cfg for that file exists. Return also a
-    boolean indicating whether the procedure is defined in an include file. *)
-
 val pp_attributes_kind : Format.formatter -> attributes_kind -> unit

infer/src/IR/SpecializeProcdesc.ml

@@ -135,7 +135,7 @@ exception UnmatchedParameters
     typ) where name is a parameter. The resulting proc desc is isomorphic but all the type of the
     parameters are replaced in the instructions according to the list. The virtual calls are also
     replaced to match the parameter types *)
-let with_formals_types ?(has_clang_model = false) callee_pdesc resolved_pname args =
+let with_formals_types callee_pdesc resolved_pname args =
   let callee_attributes = Procdesc.get_attributes callee_pdesc in
   let resolved_params, substitutions =
     match
@@ -158,28 +158,11 @@ let with_formals_types ?(has_clang_model = false) callee_pdesc resolved_pname ar
           (List.length args) ;
         raise UnmatchedParameters
   in
-  let translation_unit =
-    (* If it is a model, and we are using the procdesc stored in the summary, the default translation unit
-       won't be useful because we don't store that tenv, so we aim to find the source file of the caller to
-       use its tenv. *)
-    if has_clang_model then
-      let pname = Procdesc.get_proc_name callee_pdesc in
-      match Attributes.find_file_capturing_procedure pname with
-      | Some (source_file, _) ->
-          source_file
-      | None ->
-          Logging.die InternalError
-            "specialize_types should only be called with defined procedures, but we cannot find \
-             the captured file of procname %a"
-            Procname.pp pname
-    else callee_attributes.translation_unit
-  in
   let resolved_attributes =
     { callee_attributes with
       formals= List.rev resolved_params
     ; proc_name= resolved_pname
-    ; is_specialized= true
-    ; translation_unit }
+    ; is_specialized= true }
   in
   let resolved_proc_desc = Procdesc.from_proc_attributes resolved_attributes in
   let resolved_proc_desc = with_formals_types_proc callee_pdesc resolved_proc_desc substitutions in

infer/src/IR/SpecializeProcdesc.mli

@@ -9,8 +9,7 @@ open! IStd
 
 exception UnmatchedParameters
 
-val with_formals_types :
-  ?has_clang_model:bool -> Procdesc.t -> Procname.t -> (Exp.t * Typ.t) list -> Procdesc.t
+val with_formals_types : Procdesc.t -> Procname.t -> (Exp.t * Typ.t) list -> Procdesc.t
 (** Creates a copy of a procedure description and a list of type substitutions of the form (name,
     typ) where name is a parameter. The resulting procdesc is isomorphic but all the type of the
     parameters are replaced in the instructions according to the list. The virtual calls are also

infer/src/biabduction/SymExec.ml

@@ -587,7 +587,10 @@ type resolve_and_analyze_result =
     analyzed *)
 let resolve_and_analyze
     {InterproceduralAnalysis.analyze_dependency; analyze_pdesc_dependency; proc_desc; tenv}
-    ?(has_clang_model = false) prop args callee_proc_name call_flags : resolve_and_analyze_result =
+    ~has_clang_model prop args callee_proc_name call_flags : resolve_and_analyze_result =
+  if has_clang_model then
+    {resolved_pname= callee_proc_name; resolved_procdesc_opt= None; resolved_summary_opt= None}
+  else
     (* TODO (#15748878): Fix conflict with method overloading by encoding in the procedure name
        whether the method is defined or generated by the specialization *)
     let analyze_ondemand resolved_pname =
@@ -605,8 +608,8 @@ let resolve_and_analyze
                   (* It is possible that the types of the arguments are not as precise as the type of
                      the objects in the heap, so we should update them to get the best results. *)
                   let resolved_args = resolve_args prop args in
-                SpecializeProcdesc.with_formals_types ~has_clang_model callee_proc_desc
-                  resolved_pname resolved_args )
+                  SpecializeProcdesc.with_formals_types callee_proc_desc resolved_pname
+                    resolved_args )
         in
         ( resolved_proc_desc_option
         , Option.bind resolved_proc_desc_option ~f:(fun pdesc ->
@@ -1158,7 +1161,8 @@ let rec sym_exec
               norm_args
           in
           let resolve_and_analyze_result =
-            resolve_and_analyze analysis_data norm_prop norm_args callee_pname call_flags
+            resolve_and_analyze ~has_clang_model:false analysis_data norm_prop norm_args
+              callee_pname call_flags
           in
           let resolved_pname = resolve_and_analyze_result.resolved_pname in
           match resolve_and_analyze_result.resolved_summary_opt with