extern alias_set_type new_alias_set (void);
extern alias_set_type get_alias_set (tree);
+extern alias_set_type get_deref_alias_set (tree);
extern alias_set_type get_varargs_alias_set (void);
extern alias_set_type get_frame_alias_set (void);
extern bool component_uses_parent_alias_set (const_tree);
extern int alias_sets_conflict_p (alias_set_type, alias_set_type);
extern int alias_sets_must_conflict_p (alias_set_type, alias_set_type);
extern int objects_must_conflict_p (tree, tree);
-extern int nonoverlapping_memrefs_p (const_rtx, const_rtx);
-extern bool insn_alias_sets_conflict_p (rtx, rtx);
+extern int nonoverlapping_memrefs_p (const_rtx, const_rtx, bool);
/* This alias set can be used to force a memory to conflict with all
other memories, creating a barrier across which no memory reference