bb-slp-6.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 __attribute__ ((noinline)) int
  12 main1 (unsigned int x, unsigned int y)
  13 {
  14   int i;
  15   unsigned int *pin = &in[0];
  16   unsigned int *pout = &out[0];
  17   unsigned int a0, a1, a2, a3;
  18
  19   a0 = *pin++ + 23;
  20   a1 = *pin++ + 142;
  21   a2 = *pin++ + 2;
  22   a3 = *pin++ + 31;
  23
  24   *pout++ = a0 * x;
  25   *pout++ = a1 * y;
  26   *pout++ = a2 * x;
  27   *pout++ = a3 * y;
  28
  29   /* Check results.  */
  30   if (out[0] != (in[0] + 23) * x
  31       || out[1] != (in[1] + 142) * y
  32       || out[2] != (in[2] + 2) * x
  33       || out[3] != (in[3] + 31) * y)
  34     abort();
  35
  36   return 0;
  37 }
  38
  39 int main (void)
  40 {
  41   check_vect ();
  42
  43   main1 (2, 3);
  44
  45   return 0;
  46 }
  47
  48 /* { dg-final { scan-tree-dump-times "basic block vectorized using SLP" 1 "slp" { target vect_int_mult } } } */
  49 /* { dg-final { cleanup-tree-dump "slp" } } */
  50