gcc/testsuite/gcc.dg/vect/slp-7.c

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

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

#define N 8 

unsigned int in[N*8]  __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {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};
unsigned short in2[N*16]  __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63};

int
main1 ()
{
  int i;
  unsigned int out[N*8], ia[N*2];
  unsigned short sa[N], out2[N*16];

  for (i = 0; i < N; i++)
    {
      out[i*8] = in[i*8] + 5;
      out[i*8 + 1] = in[i*8 + 1] + 6;
      out[i*8 + 2] = in[i*8 + 2] + 7;
      out[i*8 + 3] = in[i*8 + 3] + 8;
      out[i*8 + 4] = in[i*8 + 4] + 9;
      out[i*8 + 5] = in[i*8 + 5] + 10;
      out[i*8 + 6] = in[i*8 + 6] + 11;
      out[i*8 + 7] = in[i*8 + 7] + 12;

      ia[i] = in[i]; 
    }

  /* check results:  */
  for (i = 0; i < N; i++)
    {
      if (out[i*8] !=  in[i*8] + 5
         || out[i*8 + 1] != in[i*8 + 1] + 6
         || out[i*8 + 2] != in[i*8 + 2] + 7
         || out[i*8 + 3] != in[i*8 + 3] + 8
         || out[i*8 + 4] != in[i*8 + 4] + 9
         || out[i*8 + 5] != in[i*8 + 5] + 10
         || out[i*8 + 6] != in[i*8 + 6] + 11
         || out[i*8 + 7] != in[i*8 + 7] + 12
         || ia[i] != in[i])
	abort ();
    }

  for (i = 0; i < N*2; i++)
    {
      out[i*4] = in[i*4] + 1; 
      out[i*4 + 1] = in[i*4 + 1] + 2;
      out[i*4 + 2] = in[i*4 + 2] + 3;
      out[i*4 + 3] = in[i*4 + 3] + 4;

      ia[i] = in[i];
    }

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

  for (i = 0; i < N; i++)
    {
      out2[i*16] = in2[i*16] * 2;
      out2[i*16 + 1] = in2[i*16 + 1] * 3;
      out2[i*16 + 2] = in2[i*16 + 2] * 4;
      out2[i*16 + 3] = in2[i*16 + 3] * 3;
      out2[i*16 + 4] = in2[i*16 + 4] * 2;
      out2[i*16 + 5] = in2[i*16 + 5] * 3;
      out2[i*16 + 6] = in2[i*16 + 6] * 2;
      out2[i*16 + 7] = in2[i*16 + 7] * 4;
      out2[i*16 + 8] = in2[i*16 + 8] * 2;
      out2[i*16 + 9] = in2[i*16 + 9] * 5;
      out2[i*16 + 10] = in2[i*16 + 10] * 2;
      out2[i*16 + 11] = in2[i*16 + 11] * 3;
      out2[i*16 + 12] = in2[i*16 + 12] * 4;
      out2[i*16 + 13] = in2[i*16 + 13] * 4;
      out2[i*16 + 14] = in2[i*16 + 14] * 3;
      out2[i*16 + 15] = in2[i*16 + 15] * 2;
    }

  /* check results:  */
  for (i = 0; i < N; i++)
    {
      if (out2[i*16] !=  in2[i*16] * 2
         || out2[i*16 + 1] != in2[i*16 + 1] * 3
         || out2[i*16 + 2] != in2[i*16 + 2] * 4
         || out2[i*16 + 3] != in2[i*16 + 3] * 3
         || out2[i*16 + 4] != in2[i*16 + 4] * 2
         || out2[i*16 + 5] != in2[i*16 + 5] * 3
         || out2[i*16 + 6] != in2[i*16 + 6] * 2
         || out2[i*16 + 7] != in2[i*16 + 7] * 4
         || out2[i*16 + 8] != in2[i*16 + 8] * 2
         || out2[i*16 + 9] != in2[i*16 + 9] * 5
         || out2[i*16 + 10] != in2[i*16 + 10] * 2
         || out2[i*16 + 11] != in2[i*16 + 11] * 3
         || out2[i*16 + 12] != in2[i*16 + 12] * 4
         || out2[i*16 + 13] != in2[i*16 + 13] * 4
         || out2[i*16 + 14] != in2[i*16 + 14] * 3
         || out2[i*16 + 15] != in2[i*16 + 15] * 2)
        abort ();
    }


  return 0;
}

int main (void)
{
  check_vect ();

  main1 ();

  return 0;
}

/* { dg-final { scan-tree-dump-times "vectorized 3 loops" 1 "vect"  { target vect_short_mult } } }*/
/* { dg-final { scan-tree-dump-times "vectorized 2 loops" 1 "vect"  { target { ! { vect_short_mult } } } } }*/
/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 3 "vect"  { target vect_short_mult } } } */
/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 2 "vect"  { target { ! { vect_short_mult } } } } } */