1 //===- llvm/Analysis/FindUsedTypes.h - Find all Types in use -----*- C++ -*--=//
3 // This pass is used to seek out all of the types in use by the program.
5 //===----------------------------------------------------------------------===//
7 #ifndef LLVM_ANALYSIS_FINDUSEDTYPES_H
8 #define LLVM_ANALYSIS_FINDUSEDTYPES_H
10 #include "llvm/Pass.h"
15 class FindUsedTypes : public Pass {
16 std::set<const Type *> UsedTypes;
18 bool IncludeSymbolTables;
20 // FindUsedTypes ctor - This pass can optionally include types that are
21 // referenced only in symbol tables, but the default is not to.
24 static AnalysisID IncludeSymbolTableID;
26 FindUsedTypes(AnalysisID id) : IncludeSymbolTables(id != ID) {}
27 virtual const char *getPassName() const { return "Find Used Types"; }
29 // getTypes - After the pass has been run, return the set containing all of
30 // the types used in the module.
32 inline const std::set<const Type *> &getTypes() const { return UsedTypes; }
34 // Print the types found in the module. If the optional Module parameter is
35 // passed in, then the types are printed symbolically if possible, using the
36 // symbol table from the module.
38 void printTypes(std::ostream &o, const Module *M = 0) const;
41 // IncorporateType - Incorporate one type and all of its subtypes into the
42 // collection of used types.
44 void IncorporateType(const Type *Ty);
46 // IncorporateSymbolTable - Add all types referenced by the specified symtab
47 // into the collection of used types.
49 void IncorporateSymbolTable(const SymbolTable *ST);
52 // run - This incorporates all types used by the specified module
56 // getAnalysisUsage - Of course, we provide ourself...
58 virtual void getAnalysisUsage(AnalysisUsage &AU) const {