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/* 
 * Copyright © 2012 Intel Corporation
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
 *
 * Author: Benjamin Segovia <benjamin.segovia@intel.com>
 */

#include "utest_helper.hpp"

static void cpu(int global_id, int *src, int *dst) {
  int i;
  int final[16];
  for (i = 0; i < 16; ++i) {
    int array[16], j;
    for (j = 0; j < 16; ++j)
      array[j] = global_id;
    for (j = 0; j < src[0]; ++j)
      array[j] = 1+src[j];
    final[i] = array[i];
  }
  dst[global_id] = final[global_id];
}

void compiler_array0(void)
{
  const size_t n = 16;
  int cpu_dst[16], cpu_src[16];

  // Setup kernel and buffers
  OCL_CREATE_KERNEL("compiler_array0");
  OCL_CREATE_BUFFER(buf[0], 0, n * sizeof(uint32_t), NULL);
  OCL_CREATE_BUFFER(buf[1], 0, n * sizeof(uint32_t), NULL);
  OCL_SET_ARG(0, sizeof(cl_mem), &buf[0]);
  OCL_SET_ARG(1, sizeof(cl_mem), &buf[1]);
  globals[0] = 16;
  locals[0] = 16;

  // Run random tests
  for (uint32_t pass = 0; pass < 8; ++pass) {
    OCL_MAP_BUFFER(0);
    for (int32_t i = 0; i < (int32_t) n; ++i)
      cpu_src[i] = ((int32_t*)buf_data[0])[i] = rand() % 16;
    OCL_UNMAP_BUFFER(0);

    // Run the kernel on GPU
    OCL_NDRANGE(1);

    // Run on CPU
    for (int32_t i = 0; i <(int32_t) n; ++i) cpu(i, cpu_src, cpu_dst);

    // Compare
    OCL_MAP_BUFFER(1);
    for (int32_t i = 0; i < 11; ++i)
      OCL_ASSERT(((int32_t*)buf_data[1])[i] == cpu_dst[i]);
    OCL_UNMAP_BUFFER(1);
  }
}

MAKE_UTEST_FROM_FUNCTION(compiler_array0);