- DenseMap<const Value*, Value*> &ValueMap,
- std::vector<ReturnInst*> &Returns,
- const char *NameSuffix = "",
- ClonedCodeInfo *CodeInfo = 0);
+ ValueToValueMapTy &VMap,
+ bool ModuleLevelChanges,
+ SmallVectorImpl<ReturnInst*> &Returns,
+ const char *NameSuffix = "",
+ ClonedCodeInfo *CodeInfo = nullptr,
+ ValueMapTypeRemapper *TypeMapper = nullptr,
+ ValueMaterializer *Materializer = nullptr);
+
+/// A helper class used with CloneAndPruneIntoFromInst to change the default
+/// behavior while instructions are being cloned.
+class CloningDirector {
+public:
+ /// This enumeration describes the way CloneAndPruneIntoFromInst should
+ /// proceed after the CloningDirector has examined an instruction.
+ enum CloningAction {
+ ///< Continue cloning the instruction (default behavior).
+ CloneInstruction,
+ ///< Skip this instruction but continue cloning the current basic block.
+ SkipInstruction,
+ ///< Skip this instruction and stop cloning the current basic block.
+ StopCloningBB
+ };
+
+ CloningDirector() {}
+ virtual ~CloningDirector() {}
+
+ /// Subclasses must override this function to customize cloning behavior.
+ virtual CloningAction handleInstruction(ValueToValueMapTy &VMap,
+ const Instruction *Inst,
+ BasicBlock *NewBB) = 0;
+};
+
+void CloneAndPruneIntoFromInst(Function *NewFunc, const Function *OldFunc,
+ const Instruction *StartingInst,
+ ValueToValueMapTy &VMap,
+ bool ModuleLevelChanges,
+ SmallVectorImpl<ReturnInst*> &Returns,
+ const char *NameSuffix = "",
+ ClonedCodeInfo *CodeInfo = nullptr,
+ const DataLayout *DL = nullptr,
+ CloningDirector *Director = nullptr);
+