fix folding of '*doubleArray'

llvm-svn: 59647
diff --git a/clang/lib/AST/ExprConstant.cpp b/clang/lib/AST/ExprConstant.cpp
index ef8e2d4..6b71d11 100644
--- a/clang/lib/AST/ExprConstant.cpp
+++ b/clang/lib/AST/ExprConstant.cpp
@@ -972,6 +972,9 @@
 }
 
 bool FloatExprEvaluator::VisitUnaryOperator(const UnaryOperator *E) {
+  if (E->getOpcode() == UnaryOperator::Deref)
+    return false;
+
   if (!EvaluateFloat(E->getSubExpr(), Result, Info))
     return false;