[PATCH 7/8] tree: Define TYPE_REF_IS_LVALUE

[Ken Matsui <kmatsui@gcc.gnu.org>]

This patch defines TYPE_REF_IS_LVALUE to determine if a type is a C++
lvalue reference.

gcc/ChangeLog:

	* tree.h (TYPE_REF_IS_LVALUE): Define.

Signed-off-by: Ken Matsui <kmatsui@gcc.gnu.org>
---
 gcc/tree.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/gcc/tree.h b/gcc/tree.h
index 347e676e737..0b2cb894241 100644
--- a/gcc/tree.h
+++ b/gcc/tree.h
@@ -1054,6 +1054,10 @@ extern void omp_clause_range_check_failed (const_tree, const char *, int,
 #define TYPE_REF_IS_RVALUE(NODE) \
   (REFERENCE_TYPE_CHECK (NODE)->base.private_flag)
 
+/* True if reference type NODE is a C++ lvalue reference.  */
+#define TYPE_REF_IS_LVALUE(NODE) \
+  (TYPE_REF_P (NODE) && !TYPE_REF_IS_RVALUE (NODE))
+
 /* Nonzero in a _DECL if the use of the name is defined as a
    deprecated feature by __attribute__((deprecated)).  */
 #define TREE_DEPRECATED(NODE) \
-- 
2.41.0