Add testcase for PR46404.

2010-12-15  Sebastian Pop  <sebastian.pop@amd.com>

	PR tree-optimization/46404
	* gcc.dg/graphite/pr46404.c: New.

From-SVN: r167876

gcc/testsuite/ChangeLog

+2010-12-15  Sebastian Pop  <sebastian.pop@amd.com>
+
+	PR tree-optimization/46404
+	* gcc.dg/graphite/pr46404.c: New.
+
 2010-12-15  Jakub Jelinek  <jakub@redhat.com>
 
 	PR fortran/46945

gcc/testsuite/gcc.dg/graphite/pr46404.c

+/* { dg-options "-O -fgraphite-identity -fno-tree-scev-cprop" } */
+
+int l[200];
+
+void
+foo (void)
+{
+  int i = 0;
+  for (; i < 100; i++)
+    ;
+  for (; i; i--)
+    l[i];
+}