Add another 256bit vectorizer test.

2010-10-14  H.J. Lu  <hongjiu.lu@intel.com>

	* gcc.target/i386/vect-sizes-1.c: New.

From-SVN: r165458

gcc/testsuite/ChangeLog

 2010-10-14  H.J. Lu  <hongjiu.lu@intel.com>
 
+	* gcc.target/i386/vect-sizes-1.c: New.
+
+2010-10-14  H.J. Lu  <hongjiu.lu@intel.com>
+
 	PR middle-end/46011
 	* gcc.target/i386/vectorize4-avx.c: Scan 256bit AVX register
 	and xfail.

gcc/testsuite/gcc.target/i386/vect-sizes-1.c

+/* { dg-do compile } */
+/* { dg-options "-O3 -ffast-math -mavx" } */
+
+double a[1024];
+
+void dependence_distance_4 (void)
+{
+  int i;
+  for (i = 0; i < 1020; ++i)
+    a[i + 4] = a[i] + a[i + 4];
+}
+
+/* { dg-final { scan-assembler "vmovapd\[ \\t\]+\[^\n\]*%ymm" } } */