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//===- 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.
#include "llvm/ADT/SetVector.h"
#include "llvm/Pass.h"
namespace llvm {
class Type;
class Value;
class FindUsedTypes : public ModulePass {
SetVector<Type *> UsedTypes;
static char ID; // Pass identification, replacement for typeid
FindUsedTypes() : ModulePass(ID) {
/// 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 override;
/// 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);
/// run - This incorporates all types used by the specified module
bool runOnModule(Module &M) override;
/// getAnalysisUsage - We do not modify anything.
void getAnalysisUsage(AnalysisUsage &AU) const override {
} // End llvm namespace