Subversion Repositories openrisc

/* { 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 2558402

unsigned int ub[N];

unsigned int uc[N];

 /* Reduction of unsigned-int.  */

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

 {

   int i;

   unsigned int udiff = 2;

   unsigned int umax = x;

   unsigned int umin = x;

   /* Summation.  */

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

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

   }

   /* Maximum.  */

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

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

   }

   /* Minimum.  */

   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;

   ub[0] = 1;

   uc[0] = 1;

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

     {

       ub[i] = i * 3;

       uc[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" } } */