Implement support for null non-type template arguments for non-type
template parameters of pointer, pointer-to-member, or nullptr_t
type in C++11. Fixes PR9700 / <rdar://problem/11193097>.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154219 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/ExprConstant.cpp b/lib/AST/ExprConstant.cpp
index 0d8490e..4ef169d 100644
--- a/lib/AST/ExprConstant.cpp
+++ b/lib/AST/ExprConstant.cpp
@@ -1743,8 +1743,10 @@
// parameters are constant expressions even if they're non-const.
// In C, such things can also be folded, although they are not ICEs.
const VarDecl *VD = dyn_cast<VarDecl>(D);
- if (const VarDecl *VDef = VD->getDefinition(Info.Ctx))
- VD = VDef;
+ if (VD) {
+ if (const VarDecl *VDef = VD->getDefinition(Info.Ctx))
+ VD = VDef;
+ }
if (!VD || VD->isInvalidDecl()) {
Info.Diag(Conv);
return false;