d88a695158
The host data might not be computed yet (by an earlier asynchronous compute region, for example. libgomp/ * target.c (gomp_coalesce_buf_add): Update comment. (gomp_copy_host2dev, gomp_map_vars_internal): Don't expect to see 'aq && cbuf'. (gomp_map_vars_internal): Only 'if (!aq)', do 'gomp_coalesce_buf_add'. * testsuite/libgomp.oacc-c-c++-common/async-data-1-2.c: Remove XFAIL. Co-Authored-By: Julian Brown <julian@codesourcery.com>
100 lines
1.6 KiB
C
100 lines
1.6 KiB
C
/* Verify back to back 'async' operations, two data mappings.
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Make sure that despite two data mappings, this isn't using the libgomp
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'cbuf' buffering.
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*/
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#include <stdlib.h>
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#define N 128
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static void
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t1 (void)
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{
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unsigned int *a, *b;
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int i;
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int nbytes;
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nbytes = N * sizeof (unsigned int);
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a = (unsigned int *) malloc (nbytes);
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b = (unsigned int *) malloc (nbytes);
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for (i = 0; i < N; i++)
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b[i] = a[i] = 3;
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#pragma acc parallel async copy (a[0:N], b[0:N])
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for (int ii = 0; ii < N; ii++)
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b[ii] += (a[ii] += 1);
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#pragma acc parallel async copy (a[0:N], b[0:N])
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for (int ii = 0; ii < N; ii++)
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b[ii] += (a[ii] += 1);
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#pragma acc wait
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for (i = 0; i < N; i++)
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{
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if (a[i] != 5)
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abort ();
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if (b[i] != 12)
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abort ();
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}
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}
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static void
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t2 (void)
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{
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unsigned int *a, *b;
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int i;
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int nbytes;
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nbytes = N * sizeof (unsigned int);
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a = (unsigned int *) malloc (nbytes);
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b = (unsigned int *) malloc (nbytes);
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#pragma acc data copyin (a[0:N], b[0:N])
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{
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for (i = 0; i < N; i++)
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b[i] = a[i] = 3;
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#pragma acc update async device (a[0:N], b[0:N])
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#pragma acc parallel async present (a[0:N], b[0:N])
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for (int ii = 0; ii < N; ii++)
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b[ii] += (a[ii] += 1);
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#pragma acc update async host (a[0:N], b[0:N])
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#pragma acc update async device (a[0:N], b[0:N])
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#pragma acc parallel async present (a[0:N], b[0:N])
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for (int ii = 0; ii < N; ii++)
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b[ii] += (a[ii] += 1);
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#pragma acc update async host (a[0:N], b[0:N])
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#pragma acc wait
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}
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for (i = 0; i < N; i++)
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{
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if (a[i] != 5)
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abort ();
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if (b[i] != 12)
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abort ();
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}
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}
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int
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main (void)
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{
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t1 ();
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t2 ();
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return 0;
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}
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