FindUsedTypes.h revision 47b6f84736197b5ece84860e6cb6052ebc60c646
1f26e28711bcc10536036e0c10c931a8ca28b778cChris Lattner//===- llvm/Analysis/FindUsedTypes.h - Find all Types in use -----*- C++ -*--=// 2f26e28711bcc10536036e0c10c931a8ca28b778cChris Lattner// 3f26e28711bcc10536036e0c10c931a8ca28b778cChris Lattner// This pass is used to seek out all of the types in use by the program. 4f26e28711bcc10536036e0c10c931a8ca28b778cChris Lattner// 5f26e28711bcc10536036e0c10c931a8ca28b778cChris Lattner//===----------------------------------------------------------------------===// 6f26e28711bcc10536036e0c10c931a8ca28b778cChris Lattner 7f26e28711bcc10536036e0c10c931a8ca28b778cChris Lattner#ifndef LLVM_ANALYSIS_FINDUSEDTYPES_H 8f26e28711bcc10536036e0c10c931a8ca28b778cChris Lattner#define LLVM_ANALYSIS_FINDUSEDTYPES_H 9f26e28711bcc10536036e0c10c931a8ca28b778cChris Lattner 10f26e28711bcc10536036e0c10c931a8ca28b778cChris Lattner#include "llvm/Pass.h" 11f26e28711bcc10536036e0c10c931a8ca28b778cChris Lattner#include <set> 12f26e28711bcc10536036e0c10c931a8ca28b778cChris Lattnerclass SymbolTable; 13facd752d3afaeca7dee46648f2a2ae209a94e5e9Chris Lattnerclass Type; 14f26e28711bcc10536036e0c10c931a8ca28b778cChris Lattner 15facd752d3afaeca7dee46648f2a2ae209a94e5e9Chris Lattnerclass FindUsedTypes : public Pass { 16697954c15da58bd8b186dbafdedd8b06db770201Chris Lattner std::set<const Type *> UsedTypes; 17f26e28711bcc10536036e0c10c931a8ca28b778cChris Lattnerpublic: 1847b6f84736197b5ece84860e6cb6052ebc60c646Chris Lattner /// getTypes - After the pass has been run, return the set containing all of 1947b6f84736197b5ece84860e6cb6052ebc60c646Chris Lattner /// the types used in the module. 2047b6f84736197b5ece84860e6cb6052ebc60c646Chris Lattner /// 215d549083e2dc55cc1aa035f1069480d052717061Chris Lattner const std::set<const Type *> &getTypes() const { return UsedTypes; } 22f26e28711bcc10536036e0c10c931a8ca28b778cChris Lattner 2347b6f84736197b5ece84860e6cb6052ebc60c646Chris Lattner /// Print the types found in the module. If the optional Module parameter is 2447b6f84736197b5ece84860e6cb6052ebc60c646Chris Lattner /// passed in, then the types are printed symbolically if possible, using the 2547b6f84736197b5ece84860e6cb6052ebc60c646Chris Lattner /// symbol table from the module. 2647b6f84736197b5ece84860e6cb6052ebc60c646Chris Lattner /// 2797f51a3024a72ef8500e95b90e6361e6783160fdChris Lattner void print(std::ostream &o, const Module *M) const; 28f26e28711bcc10536036e0c10c931a8ca28b778cChris Lattner 29f26e28711bcc10536036e0c10c931a8ca28b778cChris Lattnerprivate: 3047b6f84736197b5ece84860e6cb6052ebc60c646Chris Lattner /// IncorporateType - Incorporate one type and all of its subtypes into the 3147b6f84736197b5ece84860e6cb6052ebc60c646Chris Lattner /// collection of used types. 3247b6f84736197b5ece84860e6cb6052ebc60c646Chris Lattner /// 33f26e28711bcc10536036e0c10c931a8ca28b778cChris Lattner void IncorporateType(const Type *Ty); 34f26e28711bcc10536036e0c10c931a8ca28b778cChris Lattner 35fe700e7e4240fa88b8d5f44d1e7d6dcc51495c26Chris Lattnerpublic: 3647b6f84736197b5ece84860e6cb6052ebc60c646Chris Lattner /// run - This incorporates all types used by the specified module 377e70829632f82de15db187845666aaca6e04b792Chris Lattner bool run(Module &M); 38f26e28711bcc10536036e0c10c931a8ca28b778cChris Lattner 3947b6f84736197b5ece84860e6cb6052ebc60c646Chris Lattner /// getAnalysisUsage - We do not modify anything. 40f57b845547302d24ecb6a9e79d7bc386f761a6c9Chris Lattner virtual void getAnalysisUsage(AnalysisUsage &AU) const { 41f57b845547302d24ecb6a9e79d7bc386f761a6c9Chris Lattner AU.setPreservesAll(); 42f57b845547302d24ecb6a9e79d7bc386f761a6c9Chris Lattner } 4347b6f84736197b5ece84860e6cb6052ebc60c646Chris Lattner 4447b6f84736197b5ece84860e6cb6052ebc60c646Chris Lattner // stub - dummy function, just ignore it 4547b6f84736197b5ece84860e6cb6052ebc60c646Chris Lattner static void stub(); 46f26e28711bcc10536036e0c10c931a8ca28b778cChris Lattner}; 47f26e28711bcc10536036e0c10c931a8ca28b778cChris Lattner 4847b6f84736197b5ece84860e6cb6052ebc60c646Chris Lattner// Make sure that any clients of this file link in PostDominators.cpp 4947b6f84736197b5ece84860e6cb6052ebc60c646Chris Lattnerstatic IncludeFile 5047b6f84736197b5ece84860e6cb6052ebc60c646Chris LattnerFIND_USED_TYPES_INCLUDE_FILE((void*)&FindUsedTypes::stub); 5147b6f84736197b5ece84860e6cb6052ebc60c646Chris Lattner 52f26e28711bcc10536036e0c10c931a8ca28b778cChris Lattner#endif 53