PR15884: In the 'taking the address of a temporary' extension, materialize the
temporary to an lvalue before taking its address. This removes a weird special
case from the AST representation, and allows the constant expression evaluator
to deal with it without (broken) hacks.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180866 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaExpr.cpp b/lib/Sema/SemaExpr.cpp
index 173ee1e..9f4f6d0 100644
--- a/lib/Sema/SemaExpr.cpp
+++ b/lib/Sema/SemaExpr.cpp
@@ -8306,6 +8306,9 @@
<< op->getType() << op->getSourceRange();
if (sfinae)
return QualType();
+ // Materialize the temporary as an lvalue so that we can take its address.
+ OrigOp = op = new (S.Context)
+ MaterializeTemporaryExpr(op->getType(), OrigOp.take(), true);
} else if (isa<ObjCSelectorExpr>(op)) {
return S.Context.getPointerType(op->getType());
} else if (lval == Expr::LV_MemberFunction) {