Cross Reference: /external/llvm/tools/gold/gold-plugin.cpp

Lines Matching defs:GV
267 static const GlobalObject *getBaseObject(const GlobalValue &GV) {
268   if (auto *GA = dyn_cast<GlobalAlias>(&GV))
270   return cast<GlobalObject>(&GV);
382     const GlobalValue *GV = Obj->getSymbolGV(Sym.getRawDataRefImpl());
385     if (GV) {
386       switch (GV->getVisibility()) {
401       if (GV && GV->hasExternalWeakLinkage())
405       if (GV) {
406         assert(!GV->hasExternalWeakLinkage() &&
407                !GV->hasAvailableExternallyLinkage() && "Not a declaration!");
408         if (GV->hasCommonLinkage())
410         else if (GV->isWeakForLinker())
417     if (GV) {
418       const GlobalObject *Base = getBaseObject(*GV);
441 static void keepGlobalValue(GlobalValue &GV,
443   assert(!GV.hasLocalLinkage());
445   if (auto *GA = dyn_cast<GlobalAlias>(&GV))
448   switch (GV.getLinkage()) {
452     GV.setLinkage(GlobalValue::WeakAnyLinkage);
455     GV.setLinkage(GlobalValue::WeakODRLinkage);
459   assert(!GV.isDiscardableIfUnused());
462 static void internalize(GlobalValue &GV) {
463   if (GV.isDeclarationForLinker())
465   if (!GV.hasLocalLinkage())
466     GV.setLinkage(GlobalValue::InternalLinkage);
469 static void drop(GlobalValue &GV) {
470   if (auto *F = dyn_cast<Function>(&GV)) {
476   if (auto *Var = dyn_cast<GlobalVariable>(&GV)) {
484   auto &Alias = cast<GlobalAlias>(GV);
628     GlobalValue *GV = Obj.getSymbolGV(ObjSym.getRawDataRefImpl());
629     if (!GV) {
634     if (Resolution != LDPR_PREVAILING_DEF_IRONLY && GV->hasCommonLinkage()) {
637       // The IR linker does that for us if we just pass it every common GV.
651       assert(GV->isDeclarationForLinker());
655       if (!GV->isDeclarationForLinker()) {
656         assert(GV->hasComdat());
657         Drop.insert(GV);
662       keepGlobalValue(*GV, KeptAliases);
663       if (!Used.count(GV)) {
664         // Since we use the regular lib/Linker, we cannot just internalize GV
667         Internalize.insert(GV->getName());
673       keepGlobalValue(*GV, KeptAliases);
679       if (!GV->isDiscardableIfUnused())
680         Maybe.erase(GV->getName());
684       Drop.insert(GV);
689       // reason is that this GV might have a copy in another module
692       if (GV->hasLinkOnceODRLinkage())
693         Maybe.insert(GV->getName());
694       keepGlobalValue(*GV, KeptAliases);
705     // Gold told us to keep GA. It is possible that a GV usied in the aliasee
706     // expression is being dropped. If that is the case, that GV must be copied.
712   for (auto *GV : Drop)
713     drop(*GV);
859     GlobalValue *GV = Combined->getNamedValue(Name.first());
860     if (GV)
861       internalize(*GV);
865     GlobalValue *GV = Combined->getNamedValue(Name.first());
866     if (!GV)
868     GV->setLinkage(GlobalValue::LinkOnceODRLinkage);
869     if (canBeOmittedFromSymbolTable(GV))
870       internalize(*GV);