Retro68/gcc/libgomp/testsuite/libgomp.c-c++-common/task-reduction-6.c
Wolfgang Thaller 6fbf4226da gcc-9.1
2019-06-20 20:10:10 +02:00

126 lines
2.6 KiB
C

#include <omp.h>
#include <stdlib.h>
struct S { unsigned long long int s, t; };
void
rbar (struct S *p, struct S *o)
{
p->s = 1;
if (o->t != 5)
abort ();
p->t = 9;
}
static inline void
rbaz (struct S *o, struct S *i)
{
if (o->t != 5 || i->t != 9)
abort ();
o->s *= i->s;
}
#pragma omp declare reduction (+: struct S : omp_out.s += omp_in.s) \
initializer (omp_priv = { 0, 3 })
#pragma omp declare reduction (*: struct S : rbaz (&omp_out, &omp_in)) \
initializer (rbar (&omp_priv, &omp_orig))
struct S g = { 0, 7 };
struct S h = { 1, 5 };
int
foo (int *a, int *b)
{
int x = 0;
#pragma omp taskloop reduction (+:x) in_reduction (+:b[0])
for (int i = 0; i < 64; i++)
{
x += a[i];
*b += a[i] * 2;
}
return x;
}
unsigned long long int
bar (int *a, unsigned long long int *b)
{
unsigned long long int x = 1;
#pragma omp taskloop reduction (*:x) in_reduction (*:b[0])
for (int i = 0; i < 64; i++)
{
#pragma omp task in_reduction (*:x)
x *= a[i];
#pragma omp task in_reduction (*:b[0])
*b *= (3 - a[i]);
}
return x;
}
void
baz (int i, int *a, int *c)
{
#pragma omp task in_reduction (*:h) in_reduction (+:g)
{
g.s += 7 * a[i];
h.s *= (3 - c[i]);
if ((g.t != 7 && g.t != 3) || (h.t != 5 && h.t != 9))
abort ();
}
}
int
main ()
{
int i, j, a[64], b = 0, c[64];
unsigned long long int d = 1, e;
int r = 0, t;
struct S m = { 0, 7 };
struct S n = { 1, 5 };
for (i = 0; i < 64; i++)
{
a[i] = 2 * i;
c[i] = 1 + ((i % 3) != 1);
}
#pragma omp parallel reduction (task, +:b) reduction(+:r) \
reduction(task,*:d) reduction (task, +: g, m) \
reduction (task, *: h, n) shared(t)
{
#pragma omp master
{
j = foo (a, &b);
t = omp_get_num_threads ();
}
r++;
#pragma omp single nowait
e = bar (c, &d);
#pragma omp master
#pragma omp taskloop in_reduction (+: g, m) in_reduction (*: h, n)
for (i = 0; i < 64; ++i)
{
g.s += 3 * a[i];
h.s *= (3 - c[i]);
m.s += 4 * a[i];
n.s *= c[i];
if ((g.t != 7 && g.t != 3) || (h.t != 5 && h.t != 9)
|| (m.t != 7 && m.t != 3) || (n.t != 5 && n.t != 9))
abort ();
baz (i, a, c);
}
}
if (n.s != (1ULL << 43) || n.t != 5)
abort ();
if (j != 63 * 64 || b != 63 * 64 * 2)
abort ();
if (e != (1ULL << 43) || d != (1ULL << 21))
abort ();
if (g.s != 63 * 64 * 10 || g.t != 7)
abort ();
if (h.s != (1ULL << 42) || h.t != 5)
abort ();
if (m.s != 63 * 64 * 4 || m.t != 7)
abort ();
if (r != t)
abort ();
return 0;
}