2006-12-13 Jakub Jelinek <jakub@redhat.com>

[pf3gnuchains/gcc-fork.git] / gcc / tree-scalar-evolution.h

diff --git a/gcc/tree-scalar-evolution.h b/gcc/tree-scalar-evolution.h
index ad3ddd5..464fe8f 100644 (file)
--- a/gcc/tree-scalar-evolution.h
+++ b/gcc/tree-scalar-evolution.h
@@ -22,7 +22,8 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
 #ifndef GCC_TREE_SCALAR_EVOLUTION_H
 #define GCC_TREE_SCALAR_EVOLUTION_H
 
-extern tree number_of_iterations_in_loop (struct loop *);
+extern tree number_of_latch_executions (struct loop *);
+extern tree number_of_exit_cond_executions (struct loop *);
 extern tree get_loop_exit_condition (struct loop *);
 
 extern void scev_initialize (void);
@@ -36,4 +37,12 @@ unsigned int scev_const_prop (void);
 
 extern bool simple_iv (struct loop *, tree, tree, affine_iv *, bool);
 
+/* Returns the loop of the polynomial chrec CHREC.  */
+
+static inline struct loop *
+get_chrec_loop (tree chrec)
+{
+  return get_loop (CHREC_VARIABLE (chrec));
+}
+
 #endif  /* GCC_TREE_SCALAR_EVOLUTION_H  */