Fix a silly mistake in ComplexExprEvaluator::ZeroInitialization. <rdar://problem/10691092>.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148157 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 3 insertions, 1 deletions

diff --git a/lib/AST/ExprConstant.cpp b/lib/AST/ExprConstant.cpp
index 0cae13850d..912b111d61 100644
--- a/lib/AST/ExprConstant.cpp
+++ b/lib/AST/ExprConstant.cpp
@@ -4914,7 +4914,7 @@ static bool EvaluateComplex(const Expr *E, ComplexValue &Result,
 }
 
 bool ComplexExprEvaluator::ZeroInitialization(const Expr *E) {
-  QualType ElemTy = cast<ComplexType>(E->getType())->getElementType();
+  QualType ElemTy = E->getType()->getAs<ComplexType>()->getElementType();
   if (ElemTy->isRealFloatingType()) {
     Result.makeComplexFloat();
     APFloat Zero = APFloat::getZero(Info.Ctx.getFloatTypeSemantics(ElemTy));
diff --git a/test/SemaCXX/constant-expression-cxx11.cpp b/test/SemaCXX/constant-expression-cxx11.cpp
index 71ce75887b..d80339fe5f 100644
--- a/test/SemaCXX/constant-expression-cxx11.cpp
+++ b/test/SemaCXX/constant-expression-cxx11.cpp
@@ -998,4 +998,6 @@ namespace ComplexConstexpr {
   constexpr _Complex int test4 = {4};
   constexpr _Complex int test5 = 4;
   constexpr _Complex int test6 = {5,6};
+  typedef _Complex float fcomplex;
+  constexpr fcomplex test7 = fcomplex();
 }