1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/cp/pt.cc b/gcc/cp/pt.cc
index 9a21467b..b6a450c 100644
--- a/gcc/cp/pt.cc
+++ b/gcc/cp/pt.cc
@@ -24706,6 +24706,8 @@ unify (tree tparms, tree targs, tree parm, tree arg, int strict,
       /* Type INTEGER_CST can come from ordinary constant template args.  */
     case INTEGER_CST:
     case REAL_CST:
+      if (!same_type_p (TREE_TYPE (parm), TREE_TYPE (arg)))
+	return unify_template_argument_mismatch (explain_p, parm, arg);
       while (CONVERT_EXPR_P (arg))
 	arg = TREE_OPERAND (arg, 0);