Transforms/Utils/GlobalStatus.cpp

50 static bool analyzeGlobalAux(const Value *V, GlobalStatus &GS,
54       GS.StoredType = GlobalStatus::StoredOnce;
59       GS.HasNonInstructionUser = true;
66       if (analyzeGlobalAux(CE, GS, PhiUsers))
69       if (!GS.HasMultipleAccessingFunctions) {
71         if (!GS.AccessingFunction)
72           GS.AccessingFunction = F;
73         else if (GS.AccessingFunction != F)
74           GS.HasMultipleAccessingFunctions = true;
77         GS.IsLoaded = true;
81         GS.Ordering = strongerOrdering(GS.Ordering, LI->getOrdering());
91         GS.Ordering = strongerOrdering(GS.Ordering, SI->getOrdering());
96         if (GS.StoredType != GlobalStatus::Stored) {
109               if (GS.StoredType < GlobalStatus::InitializerStored)
110                 GS.StoredType = GlobalStatus::InitializerStored;
113               if (GS.StoredType < GlobalStatus::InitializerStored)
114                 GS.StoredType = GlobalStatus::InitializerStored;
115             } else if (GS.StoredType < GlobalStatus::StoredOnce) {
116               GS.StoredType = GlobalStatus::StoredOnce;
117               GS.StoredOnceValue = StoredVal;
118             } else if (GS.StoredType == GlobalStatus::StoredOnce &&
119                        GS.StoredOnceValue == StoredVal) {
122               GS.StoredType = GlobalStatus::Stored;
125             GS.StoredType = GlobalStatus::Stored;
129         if (analyzeGlobalAux(I, GS, PhiUsers))
132         if (analyzeGlobalAux(I, GS, PhiUsers))
135         if (analyzeGlobalAux(I, GS, PhiUsers))
141           if (analyzeGlobalAux(I, GS, PhiUsers))
144         GS.IsCompared = true;
149           GS.StoredType = GlobalStatus::Stored;
151           GS.IsLoaded = true;
156         GS.StoredType = GlobalStatus::Stored;
160         GS.IsLoaded = true;
165       GS.HasNonInstructionUser = true;
170       GS.HasNonInstructionUser = true;
179 bool GlobalStatus::analyzeGlobal(const Value *V, GlobalStatus &GS) {
181   return analyzeGlobalAux(V, GS, PhiUsers);