gcc-4_9-branch/gcc/testsuite/gcc.dg/vect/vect-pre-interact.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target vect_float } */
   3
   4 /* This checks that PRE doesn't create situations that prevent vectorization.
   5    I.e. PR39300, PR35229.  */
   6 float res[1024], data[1025];
   7
   8 void foo (void)
   9 {
  10   int i;
  11   for (i = 0; i < 1024; ++i)
  12     res[i] = data[i] + data[i + 1];
  13 }
  14
  15 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail { vect_no_align && { ! vect_hw_misalign } } } } } */
  16 /* { dg-final { cleanup-tree-dump "vect" } } */