gcc/testsuite/gcc.dg/vect/slp-11c.c

/* { dg-require-effective-target vect_int } */
/* { dg-require-effective-target vect_float } */

#include <stdarg.h>
#include "tree-vect.h"

#define N 8

int
main1 ()
{
  int i;
  unsigned int in[N*8] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63};
  float out[N*8];

  /* Different operations - not SLPable.  */
  for (i = 0; i < N*4; i++)
    {
      out[i*2] = ((float) in[i*2] * 2 + 6) ;
      out[i*2 + 1] = (float) (in[i*2 + 1] * 3 + 7);
    }

  /* check results:  */
  for (i = 0; i < N*4; i++)
    {
      if (out[i*2] !=  ((float) in[i*2] * 2 + 6)
         || out[i*2 + 1] != (float) (in[i*2 + 1] * 3 + 7))
        abort ();
    }


  return 0;
}

int main (void)
{
  check_vect ();

  main1 ();

  return 0;
}

/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { { vect_uintfloat_cvt && vect_strided2 } && vect_int_mult } } } } */
/* { dg-final { scan-tree-dump-times "vectorized 0 loops" 1 "vect" { target { ! { { vect_uintfloat_cvt && vect_strided2 } && vect_int_mult } } } } } */
/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 0  "vect"  } } */