79   // Replacements - This vector contains a list of replacements to perform.  in mergeConstants()
80   SmallVector<std::pair<GlobalVariable*, GlobalVariable*>, 32> Replacements;  in mergeConstants()  local
129     // the Replacements vector.  We cannot do the replacement in this pass  in mergeConstants()
162       Replacements.push_back(std::make_pair(GV, Slot));  in mergeConstants()
165     if (Replacements.empty())  in mergeConstants()
169     // Now that we have figured out which replacements must be made, do them all  in mergeConstants()
172     for (unsigned i = 0, e = Replacements.size(); i != e; ++i) {  in mergeConstants()
174       if (Replacements[i].first->getAlignment() ||  in mergeConstants()
175           Replacements[i].second->getAlignment()) {  in mergeConstants()
176         Replacements[i].second->setAlignment(  in mergeConstants()
177             std::max(getAlignment(Replacements[i].first),  in mergeConstants()
178                      getAlignment(Replacements[i].second)));  in mergeConstants()
182       Replacements[i].first->replaceAllUsesWith(Replacements[i].second);  in mergeConstants()
185       assert(Replacements[i].first->hasLocalLinkage() &&  in mergeConstants()
187       Replacements[i].first->eraseFromParent();  in mergeConstants()
190     NumMerged += Replacements.size();  in mergeConstants()
191     Replacements.clear();  in mergeConstants()