| //===- llvm/Analysis/FindUsedTypes.h - Find all Types in use ----*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This pass is used to seek out all of the types in use by the program. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_ANALYSIS_FINDUSEDTYPES_H |
| #define LLVM_ANALYSIS_FINDUSEDTYPES_H |
| |
| #include "llvm/ADT/SetVector.h" |
| #include "llvm/Pass.h" |
| |
| namespace llvm { |
| |
| class Type; |
| class Value; |
| |
| class FindUsedTypes : public ModulePass { |
| SetVector<Type *> UsedTypes; |
| public: |
| static char ID; // Pass identification, replacement for typeid |
| FindUsedTypes() : ModulePass(ID) { |
| initializeFindUsedTypesPass(*PassRegistry::getPassRegistry()); |
| } |
| |
| /// getTypes - After the pass has been run, return the set containing all of |
| /// the types used in the module. |
| /// |
| const SetVector<Type *> &getTypes() const { return UsedTypes; } |
| |
| /// Print the types found in the module. If the optional Module parameter is |
| /// passed in, then the types are printed symbolically if possible, using the |
| /// symbol table from the module. |
| /// |
| void print(raw_ostream &o, const Module *M) const; |
| |
| private: |
| /// IncorporateType - Incorporate one type and all of its subtypes into the |
| /// collection of used types. |
| /// |
| void IncorporateType(Type *Ty); |
| |
| /// IncorporateValue - Incorporate all of the types used by this value. |
| /// |
| void IncorporateValue(const Value *V); |
| |
| public: |
| /// run - This incorporates all types used by the specified module |
| bool runOnModule(Module &M); |
| |
| /// getAnalysisUsage - We do not modify anything. |
| virtual void getAnalysisUsage(AnalysisUsage &AU) const { |
| AU.setPreservesAll(); |
| } |
| }; |
| |
| } // End llvm namespace |
| |
| #endif |