An auto variable can't appear in its own initializer.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74312 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaExpr.cpp b/lib/Sema/SemaExpr.cpp
index 3d22321..2f84306 100644
--- a/lib/Sema/SemaExpr.cpp
+++ b/lib/Sema/SemaExpr.cpp
@@ -627,6 +627,12 @@
Sema::BuildDeclRefExpr(NamedDecl *D, QualType Ty, SourceLocation Loc,
bool TypeDependent, bool ValueDependent,
const CXXScopeSpec *SS) {
+ if (Context.getCanonicalType(Ty) == Context.UndeducedAutoTy) {
+ Diag(Loc,
+ diag::err_auto_variable_cannot_appear_in_own_initializer)
+ << D->getDeclName();
+ return ExprError();
+ }
if (const VarDecl *VD = dyn_cast<VarDecl>(D)) {
if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(CurContext)) {