tree-data-ref.c (conflict_fn): Assert that the number of affine relations in the…

tree-data-ref.c (conflict_fn): Assert that the number of affine relations in the conflict function is valid.

	* tree-data-ref.c (conflict_fn): Assert that the number of affine
	relations in the conflict function is valid.

From-SVN: r121259

gcc/ChangeLog

+2007-01-28  Zdenek Dvorak <dvorakz@suse.cz>
+
+	* tree-data-ref.c (conflict_fn): Assert that the number of affine
+	relations in the conflict function is valid.
+
 2007-01-27  Ian Lance Taylor  <iant@google.com>
 
 	* common.opt: Add fstrict-overflow.

gcc/tree-data-ref.c

@@ -2418,6 +2418,7 @@ conflict_fn (unsigned n, ...)
   conflict_function *ret = XCNEW (conflict_function);
   va_list ap;
 
+  gcc_assert (0 < n && n <= MAX_DIM);
   va_start(ap, n);
 		       
   ret->n = n;