2008-05-14 Paul Thomas <pault@gcc.gnu.org>

[pf3gnuchains/gcc-fork.git] / gcc / lambda.h

diff --git a/gcc/lambda.h b/gcc/lambda.h
index e7a75fd..641b3bc 100644 (file)
--- a/gcc/lambda.h
+++ b/gcc/lambda.h
@@ -206,8 +206,10 @@ lambda_loopnest gcc_loopnest_to_lambda_loopnest (struct loop *,
                                                  struct obstack *);
 void lambda_loopnest_to_gcc_loopnest (struct loop *,
                                      VEC(tree,heap) *, VEC(tree,heap) *,
+                                     VEC(tree,heap) **,
                                       lambda_loopnest, lambda_trans_matrix,
                                       struct obstack *);
+void remove_iv (tree);
 
 static inline void lambda_vector_negate (lambda_vector, lambda_vector, int);
 static inline void lambda_vector_mult_const (lambda_vector, lambda_vector, int, int);
@@ -467,5 +469,22 @@ build_linear_expr (tree type, lambda_vector coefs, VEC (tree, heap) *ivs)
   return expr;
 }
 
+/* Returns the dependence level for a vector DIST of size LENGTH.
+   LEVEL = 0 means a lexicographic dependence, i.e. a dependence due
+   to the sequence of statements, not carried by any loop.  */
+
+
+static inline unsigned
+dependence_level (lambda_vector dist_vect, int length)
+{
+  int i;
+
+  for (i = 0; i < length; i++)
+    if (dist_vect[i] != 0)
+      return i + 1;
+
+  return 0;
+}
+
 #endif /* LAMBDA_H  */