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/* { 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 121

signed char b[N] = {1,2,3,6,8,10,12,14,16,18,20,22,24,26,28,30};

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

__attribute__ ((noinline))

void main1 (signed char x, signed char max_result, signed char min_result)

{

  int i;

  signed char diff = 2;

  signed char max = x;

  signed char min = x;

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

    diff += (signed char)(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;

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

     {

       b[i] = 1;

       c[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" 2 "parloops" } } */

/* { dg-final { scan-tree-dump-times "SUCCESS: may be parallelized" 3 "parloops" } } */

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

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