gcc/testsuite/gcc.dg/vect/slp-42.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target vect_int } */
   3
   4 int p[4096], q[4096];
   5
   6 void foo (int n)
   7 {
   8   int i;
   9   for (i = 0; i < n; ++i)
  10     {
  11       p[i*4+0] = q[i*8+0] + q[i*8+4];
  12       p[i*4+1] = q[i*8+1] + q[i*8+5];
  13       p[i*4+2] = q[i*8+2] + q[i*8+6];
  14       p[i*4+3] = q[i*8+3] + q[i*8+7];
  15     }
  16 }
  17
  18 /* { dg-final { scan-tree-dump "vectorizing stmts using SLP" "vect" { xfail vect_variable_length } } } */
  19 /* { dg-final { scan-tree-dump "vectorized 1 loops" "vect" } } */