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42 lines
1.0 KiB
C
42 lines
1.0 KiB
C
/* { dg-do run { target openacc_nvidia_accel_selected } } */
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/* { dg-set-target-env-var "GOMP_OPENACC_DIM" ":2:" } */
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/* { dg-additional-options "-foffload=-fdump-tree-oaccdevlow" } */
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/* { dg-set-target-env-var "GOMP_DEBUG" "1" } */
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#include <stdlib.h>
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#define N 1024
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unsigned int a[N];
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unsigned int b[N];
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unsigned int c[N];
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unsigned int n = N;
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int
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main (void)
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{
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for (unsigned int i = 0; i < n; ++i)
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{
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a[i] = i % 3;
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b[i] = i % 5;
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}
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#pragma acc parallel vector_length (128) copyin (a,b) copyout (c)
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{
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#pragma acc loop worker
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for (unsigned int i = 0; i < 4; i++)
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#pragma acc loop vector
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for (unsigned int j = 0; j < n / 4; j++)
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c[(i * N / 4) + j] = a[(i * N / 4) + j] + b[(i * N / 4) + j];
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}
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for (unsigned int i = 0; i < n; ++i)
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if (c[i] != (i % 3) + (i % 5))
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abort ();
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return 0;
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}
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/* { dg-final { scan-offload-tree-dump "__attribute__\\(\\(oacc function \\(1, 0, 128\\)" "oaccdevlow" } } */
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/* { dg-output "nvptx_exec: kernel main\\\$_omp_fn\\\$0: launch gangs=1, workers=2, vectors=128" } */
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