extern tree instantiate_parameters (struct loop *, tree);
extern void gather_stats_on_scev_database (void);
extern void scev_analysis (void);
-extern bool simple_iv (struct loop *, tree, tree, tree *, tree *, bool);
-void scev_const_prop (void);
+unsigned int scev_const_prop (void);
+
+extern bool simple_iv (struct loop *, tree, tree, affine_iv *, bool);
#endif /* GCC_TREE_SCALAR_EVOLUTION_H */