52     GlobalValue *GV = cast<GlobalValue>(Operand);  in FindUsedValues()  local
53     UsedValues.insert(GV);  in FindUsedValues()
69 static bool hasMetadataOtherThanDebugLoc(const GlobalVariable *GV) {  in hasMetadataOtherThanDebugLoc()  argument
71   GV->getAllMetadata(MDs);  in hasMetadataOtherThanDebugLoc()
86 static Align getAlign(GlobalVariable *GV) {  in getAlign()  argument
87   return GV->getAlign().value_or(  in getAlign()
88       GV->getDataLayout().getPreferredAlign(GV));  in getAlign()
92 isUnmergeableGlobal(GlobalVariable *GV,  in isUnmergeableGlobal()  argument
95   return !GV->isConstant() || !GV->hasDefinitiveInitializer() ||  in isUnmergeableGlobal()
96          GV->getType()->getAddressSpace() != 0 || GV->hasSection() ||  in isUnmergeableGlobal()
98          GV->isThreadLocal() ||  in isUnmergeableGlobal()
100          UsedGlobals.count(GV);  in isUnmergeableGlobal()
155     for (GlobalVariable &GV : llvm::make_early_inc_range(M.globals())) {  in mergeConstants()
157       GV.removeDeadConstantUsers();  in mergeConstants()
158       if (GV.use_empty() && GV.hasLocalLinkage()) {  in mergeConstants()
159         GV.eraseFromParent();  in mergeConstants()
164       if (isUnmergeableGlobal(&GV, UsedGlobals))  in mergeConstants()
171       if (GV.isWeakForLinker())  in mergeConstants()
175       if (hasMetadataOtherThanDebugLoc(&GV))  in mergeConstants()
178       Constant *Init = GV.getInitializer();  in mergeConstants()
187       if (FirstConstantFound || IsBetterCanonical(GV, *Slot)) {  in mergeConstants()
188         Slot = &GV;  in mergeConstants()
189         LLVM_DEBUG(dbgs() << "Cmap[" << *Init << "] = " << GV.getName()  in mergeConstants()
198     for (GlobalVariable &GV : llvm::make_early_inc_range(M.globals())) {  in mergeConstants()
199       if (isUnmergeableGlobal(&GV, UsedGlobals))  in mergeConstants()
203       if (!GV.hasLocalLinkage())  in mergeConstants()
206       Constant *Init = GV.getInitializer();  in mergeConstants()
214       if (Slot == &GV)  in mergeConstants()
217       if (makeMergeable(&GV, Slot) == CanMerge::No)  in mergeConstants()
221       LLVM_DEBUG(dbgs() << "Will replace: @" << GV.getName() << " -> @"  in mergeConstants()
223       SameContentReplacements.push_back(std::make_pair(&GV, Slot));  in mergeConstants()