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 2558400

int b[N];

int c[N];

/* Reduction of signed-int.  */

__attribute__ ((noinline))

void main1 (int x, int max_result, int min_result)

{

  int i;

  int diff = 0;

  int max = x;

  int min = x;

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

    diff += (b[i] - c[i]);

  }

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

    max = max < c[i] ? c[i] : max;

  }

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

    min = min > c[i] ? c[i] : min;

  }

  /* check results:  */

  if (diff != DIFF)

    abort ();

  if (max != max_result)

    abort ();

  if (min != min_result)

    abort ();

}

 __attribute__((noinline))

 void init_arrays ()

 {

   int i;

   b[0] = 1;

   c[0] = 1;

   for (i=1; i<N; i++)

     {

       b[i] = i * 3;

       c[i] = i;

     }

}

int main (void)

{

  init_arrays ();

  main1 (2000, 2000, 1);

  main1 (0, 1599, 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" } } */