Handle the case where 'element' in ObjCforCollectionstmt is not a DeclStmt or DeclRefExpr.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59290 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/LiveVariables.cpp b/lib/Analysis/LiveVariables.cpp
index 98b1ee2..7b04beb 100644
--- a/lib/Analysis/LiveVariables.cpp
+++ b/lib/Analysis/LiveVariables.cpp
@@ -184,18 +184,21 @@
// This represents a 'kill' for the variable.
Stmt* Element = S->getElement();
- DeclRefExpr *DR = 0;
+ DeclRefExpr* DR = 0;
VarDecl* VD = 0;
if (DeclStmt* DS = dyn_cast<DeclStmt>(Element))
VD = cast<VarDecl>(DS->getSolitaryDecl());
else {
- DR = cast<DeclRefExpr>(Element);
- VD = cast<VarDecl>(DR->getDecl());
+ Expr* ElemExpr = cast<Expr>(Element)->IgnoreParens();
+ if ((DR = dyn_cast<DeclRefExpr>(ElemExpr)))
+ VD = cast<VarDecl>(DR->getDecl());
}
- LiveState(VD, AD) = Dead;
- if (AD.Observer && DR) { AD.Observer->ObserverKill(DR); }
+ if (VD) {
+ LiveState(VD, AD) = Dead;
+ if (AD.Observer && DR) { AD.Observer->ObserverKill(DR); }
+ }
}