gcc/testsuite/gcc.dg/vect/bb-slp-3.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 16
   7
   8 unsigned int out[N];
   9 unsigned int in[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
  10
  11 int i;
  12 __attribute__ ((noinline)) int
  13 main1 ()
  14 {
  15   unsigned int *pin = &in[0];
  16   unsigned int *pout = &out[0];
  17
  18   *pout++ = *pin++;
  19   *pout++ = *pin++;
  20   *pout++ = *pin++;
  21   *pout++ = *pin++;
  22
  23   if (i)
  24     __asm__ volatile ("" : : : "memory");
  25
  26   /* Check results.  */
  27   if (out[0] != in[0]
  28       || out[1] != in[1]
  29       || out[2] != in[2]
  30       || out[3] != in[3])
  31     abort();
  32
  33   return 0;
  34 }
  35
  36 int main (void)
  37 {
  38   check_vect ();
  39
  40   main1 ();
  41
  42   return 0;
  43 }
  44
  45 /* { dg-final { scan-tree-dump-times "basic block vectorized" 1 "slp" } } */
  46 /* { dg-final { cleanup-tree-dump "slp" } } */
  47