decl2.c (cp_check_const_attributes): New.

	* decl2.c (cp_check_const_attributes): New.
	(cplus_decl_attributes): Call cp_check_const_attributes.

From-SVN: r171010

1 files changed, 21 insertions, 0 deletions

diff --git a/gcc/cp/decl2.c b/gcc/cp/decl2.c
index eb5d4f5..f62f913 100644
--- a/gcc/cp/decl2.c
+++ b/gcc/cp/decl2.c
@@ -1264,6 +1264,25 @@ cp_reconstruct_complex_type (tree type, tree bottom)
   return cp_build_qualified_type (outer, cp_type_quals (type));
 }
 
+/* Replaces any constexpr expression that may be into the attributes
+   arguments with their reduced value.  */
+
+static void
+cp_check_const_attributes (tree attributes)
+{
+  tree attr;
+  for (attr = attributes; attr; attr = TREE_CHAIN (attr))
+    {
+      tree arg;
+      for (arg = TREE_VALUE (attr); arg; arg = TREE_CHAIN (arg))
+	{
+	  tree expr = TREE_VALUE (arg);
+	  if (EXPR_P (expr))
+	    TREE_VALUE (arg) = maybe_constant_value (expr);
+	}
+    }
+}
+
 /* Like decl_attributes, but handle C++ complexity.  */
 
 void
@@ -1284,6 +1303,8 @@ cplus_decl_attributes (tree *decl, tree attributes, int flags)
 	return;
     }
 
+  cp_check_const_attributes (attributes);
+
   if (TREE_CODE (*decl) == TEMPLATE_DECL)
     decl = &DECL_TEMPLATE_RESULT (*decl);