Add testcase for PR46168.

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

	PR tree-optimization/46168
	* gcc.dg/graphite/pr46168.c: New.

From-SVN: r169255

gcc/testsuite/ChangeLog

 2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>
 
+	PR tree-optimization/46168
+	* gcc.dg/graphite/pr46168.c: New.
+
+2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>
+
 	PR tree-optimization/43657
 	* gcc.dg/graphite/pr43657.c: New.
 

gcc/testsuite/gcc.dg/graphite/pr46168.c

+/* { dg-do compile } */
+/* { dg-options "-O -ftree-loop-linear" } */
+
+int
+foo (int a[4096], int mi, int mj)
+{
+  int i, j, i16;
+  for (i = 0; i < mi; i++)
+    {
+      i16 = i + 16;
+      for (j = 0; j < mj; j++)
+	i16 = a[j] == i16;
+    }
+  return i16;
+}