re PR middle-end/39308 (ICE when compiling with -O[s123] -floop-interchange)

2009-02-27  Sebastian Pop  <sebastian.pop@amd.com>

	PR middle-end/39308
	* graphite.c (graphite_loop_normal_form): Do not call 
	number_of_iterations_exit from a gcc_assert.

From-SVN: r144470

gcc/ChangeLog

+2009-02-27  Sebastian Pop  <sebastian.pop@amd.com>
+
+	PR middle-end/39308
+	* graphite.c (graphite_loop_normal_form): Do not call 
+	number_of_iterations_exit from a gcc_assert.
+
 2009-02-27  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
 
 	* gcc/config/s390/s390.c: (s390_swap_cmp): Look for conditional

gcc/graphite.c

@@ -2382,8 +2382,10 @@ graphite_loop_normal_form (loop_p loop)
   tree nit;
   gimple_seq stmts;
   edge exit = single_dom_exit (loop);
+  bool known_niter = number_of_iterations_exit (loop, exit, &niter, false);
+
+  gcc_assert (known_niter);
 
-  gcc_assert (number_of_iterations_exit (loop, exit, &niter, false));
   nit = force_gimple_operand (unshare_expr (niter.niter), &stmts, true,
 			      NULL_TREE);
   if (stmts)