gcc/testsuite/gcc.dg/vect/pr97678.c

   1 /* { dg-require-effective-target vect_int } */
   2 /* { dg-require-effective-target vect_int_mult } */
   3 /* { dg-require-effective-target vect_pack_trunc } */
   4 /* { dg-additional-options "-mavx2" { target avx2_runtime } } */
   5
   6 #include "tree-vect.h"
   7
   8 int
   9 main ()
  10 {
  11   unsigned int i = 0;
  12   unsigned short b[158 * 2];
  13
  14   check_vect ();
  15
  16   for (i = 0; i < 158; i++)
  17     {
  18       b[i * 2] = i * 7;
  19       b[i * 2 + 1] = i * 8;
  20     }
  21
  22 #pragma GCC novector
  23   for (i = 0; i < 158; ++i)
  24     if (b[i*2] != (unsigned short)(i*7)
  25         || b[i*2+1] != (unsigned short)(i*8))
  26       abort ();
  27
  28   return 0;
  29 }
  30
  31 /* The init loop should be vectorized with SLP.  */
  32 /* We don't yet support SLP inductions for variable length vectors.  */
  33 /* { dg-final { scan-tree-dump "vectorizing stmts using SLP" "vect" { xfail vect_variable_length } } } */