gcc/testsuite/gcc.dg/vect/slp-8.c

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

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

#define N 32

int ib[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};

int main1 ()
{
  int i;
  float fa[N];

  /* int -> float */
  for (i = 0; i < N/4; i++)
    {
      fa[4*i] = (float) ib[4*i];	
      fa[4*i + 1] = (float) ib[4*i + 1];	
      fa[4*i + 2] = (float) ib[4*i + 2];	
      fa[4*i + 3] = (float) ib[4*i + 3];	
    }

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

  return 0;
}

int main (void)
{ 
  check_vect ();
  
  return main1 ();
}

/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target powerpc*-*-* i?86-*-* x86_64-*-* } } } */
/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" { target powerpc*-*-* i?86-*-* x86_64-*-* } } } */