bool ContainsDynamicAllocas;
/// All cloned call sites that have operand bundles attached are appended to
- /// this vector. This vector may contain nulls if some of the originally
- /// inserted callsites were DCE'ed after they were cloned.
+ /// this vector. This vector may contain nulls or undefs if some of the
+ /// originally inserted callsites were DCE'ed after they were cloned.
std::vector<WeakVH> OperandBundleCallSites;
ClonedCodeInfo() : ContainsCalls(false), ContainsDynamicAllocas(false) {}
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,
- ///< Don't clone the terminator but clone the current block's successors.
- CloneSuccessors
- };
-
- virtual ~CloningDirector() {}
-
- /// Subclasses must override this function to customize cloning behavior.
- virtual CloningAction handleInstruction(ValueToValueMapTy &VMap,
- const Instruction *Inst,
- BasicBlock *NewBB) = 0;
-
- virtual ValueMapTypeRemapper *getTypeRemapper() { return nullptr; }
- virtual ValueMaterializer *getValueMaterializer() { return nullptr; }
-};
-
void CloneAndPruneIntoFromInst(Function *NewFunc, const Function *OldFunc,
const Instruction *StartingInst,
ValueToValueMapTy &VMap, bool ModuleLevelChanges,
- SmallVectorImpl<ReturnInst*> &Returns,
- const char *NameSuffix = "",
- ClonedCodeInfo *CodeInfo = nullptr,
- CloningDirector *Director = nullptr);
-
+ SmallVectorImpl<ReturnInst *> &Returns,
+ const char *NameSuffix = "",
+ ClonedCodeInfo *CodeInfo = nullptr);
/// CloneAndPruneFunctionInto - This works exactly like CloneFunctionInto,
/// except that it does some simple constant prop and DCE on the fly. The