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121 lines
2.1 KiB
C
121 lines
2.1 KiB
C
/* { dg-require-effective-target offload_device_nonshared_as } */
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#include <stdlib.h>
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#include <assert.h>
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#define N 40
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int sum;
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int var1 = 1;
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int var2 = 2;
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#pragma omp declare target
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int D[N];
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#pragma omp end declare target
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void enter_data (int *X)
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{
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#pragma omp target enter data map(to: var1, var2, X[:N]) map(alloc: sum)
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}
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void exit_data_0 (int *D)
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{
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#pragma omp target exit data map(delete: D[:N])
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}
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void exit_data_1 ()
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{
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#pragma omp target exit data map(from: var1)
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}
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void exit_data_2 (int *X)
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{
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#pragma omp target exit data map(from: var2) map(release: X[:N], sum)
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}
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void exit_data_3 (int *p)
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{
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#pragma omp target exit data map(from: p[:0])
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}
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void test_nested ()
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{
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int X = 0, Y = 0, Z = 0;
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#pragma omp target data map(from: X, Y, Z)
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{
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#pragma omp target data map(from: X, Y, Z)
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{
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#pragma omp target map(from: X, Y, Z)
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X = Y = Z = 1337;
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assert (X == 0);
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assert (Y == 0);
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assert (Z == 0);
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#pragma omp target exit data map(from: X) map(release: Y)
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assert (X == 0);
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assert (Y == 0);
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#pragma omp target exit data map(release: Y) map(delete: Z)
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assert (Y == 0);
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assert (Z == 0);
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}
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assert (X == 1337);
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assert (Y == 0);
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assert (Z == 0);
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#pragma omp target map(from: X)
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X = 2448;
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assert (X == 2448);
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assert (Y == 0);
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assert (Z == 0);
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X = 4896;
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}
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assert (X == 4896);
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assert (Y == 0);
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assert (Z == 0);
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}
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int main ()
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{
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int *X = malloc (N * sizeof (int));
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int *Y = malloc (N * sizeof (int));
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X[10] = 10;
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Y[20] = 20;
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enter_data (X);
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exit_data_0 (D); /* This should have no effect on D. */
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#pragma omp target map(alloc: var1, var2, X[:N]) map(to: Y[:N]) map(always from: sum)
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{
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var1 += X[10];
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var2 += Y[20];
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sum = var1 + var2;
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D[sum]++;
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}
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assert (var1 == 1);
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assert (var2 == 2);
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assert (sum == 33);
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exit_data_1 ();
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assert (var1 == 11);
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assert (var2 == 2);
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/* Increase refcount of already mapped X[0:N]. */
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#pragma omp target enter data map(alloc: X[16:1])
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exit_data_2 (X);
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assert (var2 == 22);
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exit_data_3 (X + 5); /* Unmap X[0:N]. */
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free (X);
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free (Y);
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test_nested ();
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return 0;
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}
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