Updaet clang to 92395.

1 files changed, 17 insertions, 12 deletions

diff --git a/lib/Analysis/RegionStore.cpp b/lib/Analysis/RegionStore.cpp
index b5eeb1e..3bc9dcc 100644
--- a/lib/Analysis/RegionStore.cpp
+++ b/lib/Analysis/RegionStore.cpp
@@ -349,6 +349,7 @@ public:
 
   SVal RetrieveArray(const GRState *St, const TypedRegion* R);
 
+  /// Get the state and region whose binding this region R corresponds to.
   std::pair<const GRState*, const MemRegion*>
   GetLazyBinding(RegionBindings B, const MemRegion *R);
 
@@ -539,8 +540,7 @@ const GRState *RegionStoreManager::InvalidateRegions(const GRState *state,
     }
 
     // Handle the region itself.
-    if (isa<AllocaRegion>(R) || isa<SymbolicRegion>(R) ||
-        isa<ObjCObjectRegion>(R)) {
+    if (isa<AllocaRegion>(R) || isa<SymbolicRegion>(R)) {
       // Invalidate the region by setting its default value to
       // conjured symbol. The type of the symbol is irrelavant.
       DefinedOrUnknownSVal V = ValMgr.getConjuredSymbolVal(R, Ex, Ctx.IntTy,
@@ -744,8 +744,8 @@ DefinedOrUnknownSVal RegionStoreManager::getSizeInElements(const GRState *state,
     case MemRegion::ElementRegionKind:
     case MemRegion::FieldRegionKind:
     case MemRegion::ObjCIvarRegionKind:
-    case MemRegion::ObjCObjectRegionKind:
     case MemRegion::SymbolicRegionKind:
+    case MemRegion::CXXObjectRegionKind:
       return UnknownVal();
 
     case MemRegion::StringRegionKind: {
@@ -867,8 +867,8 @@ SVal RegionStoreManager::EvalBinOp(const GRState *state,
     // Fall-through.
     case MemRegion::CompoundLiteralRegionKind:
     case MemRegion::FieldRegionKind:
-    case MemRegion::ObjCObjectRegionKind:
     case MemRegion::ObjCIvarRegionKind:
+    case MemRegion::CXXObjectRegionKind:
       return UnknownVal();
 
     case MemRegion::FunctionTextRegionKind:
@@ -987,12 +987,12 @@ RegionStoreManager::Retrieve(const GRState *state, Loc L, QualType T) {
 
   assert(!isa<UnknownVal>(L) && "location unknown");
   assert(!isa<UndefinedVal>(L) && "location undefined");
-
+  
   // FIXME: Is this even possible?  Shouldn't this be treated as a null
   //  dereference at a higher level?
   if (isa<loc::ConcreteInt>(L))
     return SValuator::CastResult(state, UndefinedVal());
-
+  
   const MemRegion *MR = cast<loc::MemRegionVal>(L).getRegion();
 
   // FIXME: return symbolic value for these cases.
@@ -1090,8 +1090,7 @@ RegionStoreManager::Retrieve(const GRState *state, Loc L, QualType T) {
   }
 
   // All other values are symbolic.
-  return SValuator::CastResult(state,
-                               ValMgr.getRegionValueSymbolValOrUnknown(R, RTy));
+  return SValuator::CastResult(state, ValMgr.getRegionValueSymbolVal(R, RTy));
 }
 
 std::pair<const GRState*, const MemRegion*>
@@ -1256,7 +1255,7 @@ SVal RegionStoreManager::RetrieveFieldOrElementCommon(const GRState *state,
   }
 
   // All other values are symbolic.
-  return ValMgr.getRegionValueSymbolValOrUnknown(R, Ty);
+  return ValMgr.getRegionValueSymbolVal(R, Ty);
 }
 
 SVal RegionStoreManager::RetrieveObjCIvar(const GRState* state,
@@ -1296,7 +1295,7 @@ SVal RegionStoreManager::RetrieveVar(const GRState *state,
 
   if (R->hasGlobalsOrParametersStorage() ||
       isa<UnknownSpaceRegion>(R->getMemorySpace()))
-    return ValMgr.getRegionValueSymbolValOrUnknown(R, VD->getType());
+    return ValMgr.getRegionValueSymbolVal(R, VD->getType());
 
   return UndefinedVal();
 }
@@ -1307,7 +1306,7 @@ SVal RegionStoreManager::RetrieveLazySymbol(const GRState *state,
   QualType valTy = R->getValueType(getContext());
 
   // All other values are symbolic.
-  return ValMgr.getRegionValueSymbolValOrUnknown(R, valTy);
+  return ValMgr.getRegionValueSymbolVal(R, valTy);
 }
 
 SVal RegionStoreManager::RetrieveStruct(const GRState *state,
@@ -1425,7 +1424,13 @@ const GRState *RegionStoreManager::Bind(const GRState *state, Loc L, SVal V) {
     // Binding directly to a symbolic region should be treated as binding
     // to element 0.
     QualType T = SR->getSymbol()->getType(getContext());
-    T = T->getAs<PointerType>()->getPointeeType();
+    
+    // FIXME: Is this the right way to handle symbols that are references?
+    if (const PointerType *PT = T->getAs<PointerType>())
+      T = PT->getPointeeType();
+    else
+      T = T->getAs<ReferenceType>()->getPointeeType();
+
     R = GetElementZeroRegion(SR, T);
   }