Function calls and ObjC message expressions can be used in a lvalue context if they return a structure. E.g foo().x == 1. We don't really support, however, such temporaries yet in the environment or the store.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57760 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/GRExprEngine.cpp b/lib/Analysis/GRExprEngine.cpp
index ee71417..103ec14 100644
--- a/lib/Analysis/GRExprEngine.cpp
+++ b/lib/Analysis/GRExprEngine.cpp
@@ -445,7 +445,18 @@
// Note that we have a similar problem for bitfields, since they don't
// have "locations" in the sense that we can take their address.
Dst.Add(Pred);
- return;
+ return;
+
+ case Stmt::CallExprClass:
+ case Stmt::ObjCMessageExprClass:
+ // Function calls and message expressions that return temporaries
+ // that are objects can be called in this context. We need to
+ // enhance our support of struct return values, so right now just
+ // do a regular visit.
+ assert (!Ex->getType()->isIntegerType());
+ assert (!Ex->getType()->isPointerType());
+ Visit(Ex, Pred, Dst);
+
}
}