Usedef (goblint-cil.Liveness.Usedef)

module E = GoblintCil.Errormsg

compute use/def information

module VS : sig ... end

val getUseDefFunctionRef : 
  (GoblintCil.exp ->
    GoblintCil.exp list ->
    VS.t * VS.t * GoblintCil.exp list)
    Stdlib.ref

Set this global to how you want to handle function calls. This also returns a modified argument list which will be used for the purpose of Use analysis, in case you have a function that needs special treatment of its args.

val considerVariableUse : (GoblintCil.varinfo -> bool) Stdlib.ref

Say if you want to consider a variable use. This applies to variable reads only; see also considerVariableAddrOfAsUse

val considerVariableDef : (GoblintCil.varinfo -> bool) Stdlib.ref

Say if you want to consider a variable def

val considerVariableAddrOfAsUse : (GoblintCil.varinfo -> bool) Stdlib.ref

Say if you want to consider a variable addrof as a use

val considerVariableAddrOfAsDef : (GoblintCil.varinfo -> bool) Stdlib.ref

Say if you want to consider a variable addrof as a def

val extraUsesOfExpr : (GoblintCil.exp -> VS.t) Stdlib.ref

Return any vars that should be considered "used" by an expression, other than the ones it refers to directly. Deputy uses this for variables in Cast annotations.

val onlyNoOffsetsAreDefs : bool Stdlib.ref

val ignoreSizeof : bool Stdlib.ref

Should we ignore the contents of sizeof and alignof?

val varUsed : VS.t Stdlib.ref

val varDefs : VS.t Stdlib.ref

class useDefVisitorClass : GoblintCil.cilVisitor

val useDefVisitor : useDefVisitorClass

val computeUseExp : ?acc:VS.t -> GoblintCil.exp -> VS.t

Compute the use information for an expression (accumulate to an existing set)

val computeUseDefInstr : 
  ?acc_used:VS.t ->
  ?acc_defs:VS.t ->
  GoblintCil.instr ->
  VS.t * VS.t

Compute the use/def information for an instruction

val computeUseDefStmtKind : 
  ?acc_used:VS.t ->
  ?acc_defs:VS.t ->
  GoblintCil.stmtkind ->
  VS.t * VS.t

Compute the use/def information for a statement kind. Do not descend into the nested blocks.

val computeDeepUseDefStmtKind : 
  ?acc_used:VS.t ->
  ?acc_defs:VS.t ->
  GoblintCil.stmtkind ->
  VS.t * VS.t

val computeUseLocalTypes : ?acc_used:VS.t -> GoblintCil.fundec -> VS.t