Viewing file:  task-reduction-14.C (1.3 KB) -rw-r--r--
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#include <omp.h>
#include <stdlib.h>
struct A { A (); ~A (); A (const A &); static int cnt1, cnt2, cnt3; int a; };
int A::cnt1;
int A::cnt2;
int A::cnt3;
A::A () : a (0)
{
#pragma omp atomic
cnt1++;
}
A::A (const A &x) : a (x.a)
{
#pragma omp atomic
cnt2++;
}
A::~A ()
{
#pragma omp atomic
cnt3++;
}
#pragma omp declare reduction (+: A: omp_out.a += omp_in.a)
void
foo (int x)
{
A a, b[2];
int d = 1;
long int e[2] = { 1L, 1L };
int c = 0;
#pragma omp parallel
{
if (x && omp_get_thread_num () == 0)
{
for (int i = 0; i < 10000000; ++i)
asm volatile ("");
c = 1;
#pragma omp cancel parallel
}
#pragma omp for reduction (task, +: a, b) reduction (task, *: d, e)
for (int i = 0; i < 64; i++)
#pragma omp task in_reduction (+: a, b) in_reduction (*: d, e)
{
a.a++;
b[0].a += 2;
b[1].a += 3;
d *= ((i & 7) == 0) + 1;
e[0] *= ((i & 7) == 3) + 1;
e[1] *= ((i & 3) == 2) + 1;
}
if (x && omp_get_cancellation ())
abort ();
}
if (!c)
{
if (a.a != 64 || b[0].a != 128 || b[1].a != 192)
abort ();
if (d != 256 || e[0] != 256L || e[1] != 65536L)
abort ();
}
}
int
main ()
{
int c1 = A::cnt1, c2 = A::cnt2, c3 = A::cnt3;
volatile int zero = 0;
foo (zero);
if (A::cnt1 + A::cnt2 - c1 - c2 != A::cnt3 - c3)
abort ();
}
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