new testcase for MVE

From-SVN: r124038

gcc/testsuite/ChangeLog

 2007-04-22  Revital Eres  <eres@il.ibm.com>
 
+        * gcc.dg/var-expand2.c: New test.
+
+2007-04-22  Revital Eres  <eres@il.ibm.com>
+
 	* gcc.dg/var-expand3.c: New test.
 
 2007-04-21  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

gcc/testsuite/gcc.dg/var-expand2.c

+/* { dg-do run } */
+/* { dg-options "-O2 -funroll-loops -ffast-math -fvariable-expansion-in-unroller" } */
+
+extern void abort (void);
+
+float array[10] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
+
+int
+foo (int n)
+{
+  unsigned i;
+  float accum = 0;
+
+  for (i = 0; i < n; i++)
+    accum += array[i];
+
+  if (accum != 55)
+    abort ();
+
+  return 0;
+}
+
+int
+main (void)
+{
+  return foo (10);
+}
+
+