+ continue;
+ }
+
+ if (ByValArgsToTransform.count(I)) {
+ // In the callee, we create an alloca, and store each of the new incoming
+ // arguments into the alloca.
+ Instruction *InsertPt = NF->begin()->begin();
+
+ // Just add all the struct element types.
+ const Type *AgTy = cast<PointerType>(I->getType())->getElementType();
+ Value *TheAlloca = new AllocaInst(AgTy, 0, "", InsertPt);
+ const StructType *STy = cast<StructType>(AgTy);
+ Value *Idxs[2] = { ConstantInt::get(Type::Int32Ty, 0), 0 };
+
+ for (unsigned i = 0, e = STy->getNumElements(); i != e; ++i) {
+ Idxs[1] = ConstantInt::get(Type::Int32Ty, i);
+ Value *Idx = GetElementPtrInst::Create(TheAlloca, Idxs, Idxs+2,
+ TheAlloca->getName()+"."+utostr(i),
+ InsertPt);
+ I2->setName(I->getName()+"."+utostr(i));
+ new StoreInst(I2++, Idx, InsertPt);
+ }
+
+ // Anything that used the arg should now use the alloca.
+ I->replaceAllUsesWith(TheAlloca);
+ TheAlloca->takeName(I);
+ AA.replaceWithNewValue(I, TheAlloca);
+ continue;
+ }
+
+ if (I->use_empty()) {