Subversion Repositories openrisc_2011-10-31

/* { dg-do compile } */

/* { dg-options "-O2 -ftree-parallelize-loops=4 -fdump-tree-parloops-details -fdump-tree-optimized" } */

#include <stdarg.h>

#include <stdlib.h>

#define N 1600

#define DIFF 242

unsigned char ub[N] = {1,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};

unsigned char uc[N] = {1,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};

__attribute__ ((noinline)) void

main1 (unsigned char x, unsigned char max_result, unsigned char min_result)

{

  int i;

  unsigned char udiff = 2;

  unsigned char umax = x;

  unsigned char umin = x;

  for (i = 0; i < N; i++) {

    udiff += (unsigned char)(ub[i] - uc[i]);

  }

  for (i = 0; i < N; i++) {

    umax = umax < uc[i] ? uc[i] : umax;

  }

  for (i = 0; i < N; i++) {

    umin = umin > uc[i] ? uc[i] : umin;

  }

  /* check results:  */

  if (udiff != DIFF)

    abort ();

  if (umax != max_result)

    abort ();

  if (umin != min_result)

    abort ();

}

 __attribute__((noinline))

 void init_arrays ()

 {

   int i;

   for (i=16; i<N; i++)

     {

       ub[i] = 1;

       uc[i] = 1;

     }

}

int main (void)

{

  init_arrays();

  main1 (100, 100, 1);

  main1 (0, 15, 0);

  return 0;

}

/* { dg-final { scan-tree-dump-times "Detected reduction" 3 "parloops" } } */

/* { dg-final { scan-tree-dump-times "SUCCESS: may be parallelized" 4 "parloops" } } */

/* { dg-final { cleanup-tree-dump "parloops" } } */

/* { dg-final { cleanup-tree-dump "optimized" } } */