@@ -4885,7 +4885,8 @@ initializer_constant_valid_p_1 (tree value, tree endtype, tree *cache)
/* Allow length-preserving conversions between integer types and
floating-point types. */
if (((INTEGRAL_TYPE_P (dest_type) && INTEGRAL_TYPE_P (src_type))
- || (FLOAT_TYPE_P (dest_type) && FLOAT_TYPE_P (src_type)))
+ || (SCALAR_FLOAT_TYPE_P (dest_type)
+ && SCALAR_FLOAT_TYPE_P (src_type)))
&& (TYPE_PRECISION (dest_type) == TYPE_PRECISION (src_type)))
return initializer_constant_valid_p_1 (src, endtype, cache);