Add transfer function support for BlockExpr.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89829 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/GRExprEngine.cpp b/lib/Analysis/GRExprEngine.cpp
index 255a663..11ea5f8 100644
--- a/lib/Analysis/GRExprEngine.cpp
+++ b/lib/Analysis/GRExprEngine.cpp
@@ -420,6 +420,10 @@
       VisitAsmStmt(cast<AsmStmt>(S), Pred, Dst);
       break;
 
+    case Stmt::BlockExprClass:
+      VisitBlockExpr(cast<BlockExpr>(S), Pred, Dst);
+      break;
+
     case Stmt::BinaryOperatorClass: {
       BinaryOperator* B = cast<BinaryOperator>(S);
 
@@ -1059,6 +1063,14 @@
 // Transfer functions: Loads and stores.
 //===----------------------------------------------------------------------===//
 
+void GRExprEngine::VisitBlockExpr(BlockExpr *BE, ExplodedNode *Pred,
+                                  ExplodedNodeSet &Dst) {
+  CanQualType T = getContext().getCanonicalType(BE->getType());
+  SVal V = ValMgr.getBlockPointer(BE->getBlockDecl(), T);
+  MakeNode(Dst, BE, Pred, GetState(Pred)->BindExpr(BE, V),
+           ProgramPoint::PostLValueKind);
+}
+
 void GRExprEngine::VisitDeclRefExpr(DeclRefExpr *Ex, ExplodedNode *Pred,
                                     ExplodedNodeSet &Dst, bool asLValue) {