54 lines
1.0 KiB
C
54 lines
1.0 KiB
C
/* Verify that 'acc_map_data' does not copy data to, and 'acc_unmap_data' does
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not copy data from the device. */
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/* { dg-skip-if "" { *-*-* } { "*" } { "-DACC_MEM_SHARED=0" } } */
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#include <stdlib.h>
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#include <string.h>
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#include <openacc.h>
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int
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main ()
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{
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const int c0 = 9;
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const int c1 = 40;
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const int c2 = 47;
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const size_t N = 256;
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unsigned char *h = (unsigned char *) malloc (N);
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void *d = acc_malloc (N);
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memset (h, c0, N); // H <- c0
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acc_memcpy_to_device (d, h, N); // D <- H = c0
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memset (h, c1, N); // H <- c1
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acc_map_data (h, d, N);
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for (size_t i = 0; i < N; ++i)
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if (h[i] != c1)
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abort ();
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acc_memcpy_from_device (h, d, N); // H <- D = c0
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for (size_t i = 0; i < N; ++i)
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if (h[i] != c0)
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abort ();
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memset (h, c2, N); // H <- c2
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acc_unmap_data (h);
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for (size_t i = 0; i < N; ++i)
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if (h[i] != c2)
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abort ();
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acc_memcpy_from_device (h, d, N); // H <- D = c0
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for (size_t i = 0; i < N; ++i)
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if (h[i] != c0)
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abort ();
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acc_free (d);
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free (h);
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return 0;
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}
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