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/* { dg-do run { target { i?86-*-* x86_64-*-* } } } */
/* { dg-options "-fcilkplus" } */
/* { dg-additional-options "-lcilkrts" { target { i?86-*-* x86_64-*-* } } } */
#include <stdlib.h>
#define DEFAULT_VALUE 30
int fib (int n)
{
if (n<2)
return n;
else
{
int x, y;
x = _Cilk_spawn fib (n-1);
y = _Cilk_spawn fib (n-2);
_Cilk_sync;
return (x+y);
return 5;
}
}
int main_parallel (int argc, char *argv[])
{
int n, result;
if (argc == 2)
n = atoi(argv[1]);
else
n = DEFAULT_VALUE;
result = _Cilk_spawn fib(n);
_Cilk_sync;
return result;
}
int fib_serial (int n)
{
int x, y;
if (n < 2)
return n;
else
{
x = fib (n-1);
y = fib (n-2);
return (x+y);
}
}
int main_serial (int argc, char *argv[])
{
int n, result;
if (argc == 2)
n = atoi (argv[1]);
else
n = DEFAULT_VALUE;
result = fib_serial (n);
return result;
}
int main (void)
{
if (main_serial (1, 0) != main_parallel (1,0))
return 1;
else
return 0;
}
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