re PR target/68482 (No vectorization for x86-64)

2015-11-23  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/68482
	* gcc.dg/vect/pr68482.c: New testcase.

From-SVN: r230740

gcc/testsuite/ChangeLog

 2015-11-23  Richard Biener  <rguenther@suse.de>
 
+	PR tree-optimization/68482
+	* gcc.dg/vect/pr68482.c: New testcase.
+
+2015-11-23  Richard Biener  <rguenther@suse.de>
+
 	PR tree-optimization/68445
 	* gcc.dg/vect/pr68445.c: New testcase.
 

gcc/testsuite/gcc.dg/vect/pr68482.c

+/* { dg-do compile } */
+/* { dg-require-effective-target vect_int } */
+
+void test(int* input, int* out, unsigned x1, unsigned x2)
+{
+  unsigned i, j;
+  unsigned end = x1;
+
+  for(i = j = 0; i < 1000; i++) {
+      int sum = 0;
+      end += x2;
+      for( ; j < end; j++)
+	sum += input[j];
+      out[i] = sum;
+  }
+}
+
+/* { dg-final { scan-tree-dump "vectorized 1 loops" "vect" } } */