HOST_WIDE_INT));
#ifdef TREE_CODE
extern HOST_WIDE_INT get_alias_set PARAMS ((tree));
-extern HOST_WIDE_INT (*lang_get_alias_set) PARAMS ((tree));
+extern HOST_WIDE_INT lang_get_alias_set PARAMS ((tree));
#endif
extern HOST_WIDE_INT new_alias_set PARAMS ((void));
\f
extern rtx validize_mem PARAMS ((rtx));
#ifdef TREE_CODE
+/* Given REF, either a MEM or a REG, and T, either the type of X or
+ the expression corresponding to REF, set RTX_UNCHANGING_P if
+ appropriate. */
+extern void maybe_set_unchanging PARAMS ((rtx, tree));
+
/* Given REF, a MEM, and T, either the type of X or the expression
corresponding to REF, set the memory attributes. OBJECTP is nonzero
if we are making a new object of this type. */