Add testcase for PR46215.

2011-01-18  Sebastian Pop  <sebastian.pop@amd.com>

	PR tree-optimization/46215
	* gcc.dg/graphite/pr46215.c: New.

From-SVN: r169256

gcc/testsuite/ChangeLog

 2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>
 
+	PR tree-optimization/46215
+	* gcc.dg/graphite/pr46215.c: New.
+
+2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>
+
 	PR tree-optimization/46168
 	* gcc.dg/graphite/pr46168.c: New.
 

gcc/testsuite/gcc.dg/graphite/pr46215.c

+/* { dg-do compile } */
+/* { dg-options "-O -fstrict-overflow -fno-tree-ch -ftree-loop-linear" } */
+
+extern int y[], x1[], x2[];
+void
+foo (long n)
+{
+  int i, j;
+  for (i = 0; i < n; i++)
+    for (j = 0; j < n; j += 2)
+      y[i] = x1[i + j] * x2[i + j];
+}