gcc/testsuite/gcc.dg/vect/bb-slp-19.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 short out[N];
   9 unsigned short 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 short *pin = &in[0];
  16   unsigned short *pout = &out[0];
  17
  18   *pout++ = *pin++;
  19   *pout++ = *pin++;
  20   *pout++ = *pin++;
  21   *pout++ = *pin++;
  22   *pout++ = *pin++;
  23   *pout++ = *pin++;
  24   *pout++ = *pin++;
  25   *pout++ = *pin++;
  26   *pout++ = *pin++;
  27
  28   if (i)
  29     __asm__ volatile ("" : : : "memory");
  30
  31   /* Check results.  */
  32   if (out[0] != in[0]
  33       || out[1] != in[1]
  34       || out[2] != in[2]
  35       || out[3] != in[3]
  36       || out[4] != in[4]
  37       || out[5] != in[5]
  38       || out[6] != in[6]
  39       || out[7] != in[7]
  40       || out[8] != in[8])
  41     abort();
  42
  43   return 0;
  44 }
  45
  46 int main (void)
  47 {
  48   check_vect ();
  49
  50   main1 ();
  51
  52   return 0;
  53 }
  54
  55 /* { dg-final { scan-tree-dump-times "optimized: basic block" 1 "slp2" } } */
  56