Remove a special case for OSAtomic functions. We can already bind and retrieve

with the same binding key. The only trick here is that sometimes the Symbolic
region is stored in with an LocAsInteger wrapper. We unwrap that in 
SVal::getAsLocSymbol().


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111734 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Checker/RegionStore.cpp

@@ -1326,14 +1326,8 @@ Store RegionStoreManager::Bind(Store store, Loc L, SVal V) {
       if (const TypedRegion *superR =
             dyn_cast<TypedRegion>(ER->getSuperRegion())) {
         QualType superTy = superR->getValueType();
-        QualType erTy = ER->getValueType();
-
-        if (IsAnyPointerOrIntptr(superTy, Ctx) &&
-            IsAnyPointerOrIntptr(erTy, Ctx)) {
-          V = ValMgr.getSValuator().EvalCast(V, superTy, erTy);
-          return Bind(store, loc::MemRegionVal(superR), V);
-        }
         // For now, just invalidate the fields of the struct/union/class.
+        // This is for test: undef-buffers.c
         // FIXME: Precisely handle the fields of the record.
         if (superTy->isStructureOrClassType())
           return KillStruct(store, superR, UnknownVal());

lib/Checker/SVals.cpp

@@ -62,6 +62,9 @@ const FunctionDecl *SVal::getAsFunctionDecl() const {
 ///  wraps a symbol, return that SymbolRef.  Otherwise return 0.
 // FIXME: should we consider SymbolRef wrapped in CodeTextRegion?
 SymbolRef SVal::getAsLocSymbol() const {
+  if (const nonloc::LocAsInteger *X = dyn_cast<nonloc::LocAsInteger>(this))
+    return X->getLoc().getAsLocSymbol();
+
   if (const loc::MemRegionVal *X = dyn_cast<loc::MemRegionVal>(this)) {
     const MemRegion *R = X->StripCasts();
     if (const SymbolicRegion *SymR = dyn_cast<SymbolicRegion>(R))