retain/release checker: Stop tracking reference counts for any symbols touched by StoreManager::InvalidateRegion().

This fixes <rdar://problem/7257223> and <rdar://problem/7283470>.

llvm-svn: 84223

1 files changed, 12 insertions, 2 deletions

diff --git a/clang/lib/Analysis/BasicStore.cpp b/clang/lib/Analysis/BasicStore.cpp
index a4f451f3649..d81d83c7bfa 100644
--- a/clang/lib/Analysis/BasicStore.cpp
+++ b/clang/lib/Analysis/BasicStore.cpp
@@ -49,7 +49,8 @@ public:
                                  QualType T = QualType());
 
   const GRState *InvalidateRegion(const GRState *state, const MemRegion *R,
-                                  const Expr *E, unsigned Count);
+                                  const Expr *E, unsigned Count,
+                                  InvalidatedSymbols *IS);
 
   const GRState *Bind(const GRState *state, Loc L, SVal V) {
     return state->makeWithStore(BindInternal(state->getStore(), L, V));
@@ -623,12 +624,21 @@ StoreManager::BindingsHandler::~BindingsHandler() {}
 const GRState *BasicStoreManager::InvalidateRegion(const GRState *state,
                                                    const MemRegion *R,
                                                    const Expr *E,
-                                                   unsigned Count) {
+                                                   unsigned Count,
+                                                   InvalidatedSymbols *IS) {
   R = R->getBaseRegion();
 
   if (!(isa<VarRegion>(R) || isa<ObjCIvarRegion>(R)))
       return state;
 
+  if (IS) {
+    BindingsTy B = GetBindings(state->getStore());
+    if (BindingsTy::data_type *Val = B.lookup(R)) {
+      if (SymbolRef Sym = Val->getAsSymbol())
+        IS->insert(Sym);
+    }
+  }
+
   QualType T = cast<TypedRegion>(R)->getValueType(R->getContext());
   SVal V = ValMgr.getConjuredSymbolVal(R, E, T, Count);
   return Bind(state, loc::MemRegionVal(R), V);