gcc/testsuite/gcc.dg/vect/tsvc/vect-tsvc-s351.c

/*  This file is distributed under the University of Illinois Open Source
    License. See license.txt for details.  */

/* { dg-additional-options "--param vect-epilogues-nomask=0" } */
/* { dg-require-effective-target vect_float } */

#include "tsvc.h"

real_t s351(struct args_t * func_args)
{
//    loop rerolling
//    unrolled saxpy

    initialise_arrays(__func__);

    real_t alpha = c[0];
    for (int nl = 0; nl < 8*iterations; nl++) {
        for (int i = 0; i < LEN_1D; i += 5) {
            a[i] += alpha * b[i];
            a[i + 1] += alpha * b[i + 1];
            a[i + 2] += alpha * b[i + 2];
            a[i + 3] += alpha * b[i + 3];
            a[i + 4] += alpha * b[i + 4];
        }
        dummy(a, b, c, d, e, aa, bb, cc, 0.);
    }

    return calc_checksum(__func__);
}

int main (int argc, char **argv)
{
  int n1 = 1;
  int n3 = 1;
  int* ip;
  real_t s1,s2;
  init(&ip, &s1, &s2);

  run(&s351, "s351", NULL);

  return 0;
}

/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */