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

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