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//===- llvm/Analysis/FindUsedTypes.h - Find all Types in use ----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and 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/Pass.h"
#include <set>
class SymbolTable;
class Type;
class FindUsedTypes : public Pass {
std::set<const Type *> UsedTypes;
public:
/// getTypes - After the pass has been run, return the set containing all of
/// the types used in the module.
///
const std::set<const 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(std::ostream &o, const Module *M) const;
private:
/// IncorporateType - Incorporate one type and all of its subtypes into the
/// collection of used types.
///
void IncorporateType(const Type *Ty);
/// IncorporateSymbolTable - Include any named types.
///
void IncorporateSymbolTable(const SymbolTable &ST);
public:
/// run - This incorporates all types used by the specified module
bool run(Module &M);
/// getAnalysisUsage - We do not modify anything.
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesAll();
}
// stub - dummy function, just ignore it
static void stub();
};
// Make sure that any clients of this file link in PostDominators.cpp
static IncludeFile
FIND_USED_TYPES_INCLUDE_FILE((void*)&FindUsedTypes::stub);
#endif