mirror of git://gcc.gnu.org/git/gcc.git
101 lines
4.2 KiB
C
101 lines
4.2 KiB
C
/* Test "big" private data. */
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/* { dg-additional-options -fno-inline } for stable results regarding OpenACC 'routine'. */
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/* { dg-additional-options -fopt-info-all-omp }
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{ dg-additional-options --param=openacc-privatization=noisy }
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{ dg-additional-options -foffload=-fopt-info-all-omp }
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{ dg-additional-options -foffload=--param=openacc-privatization=noisy }
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for testing/documenting aspects of that functionality. */
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/* { dg-additional-options -Wopenacc-parallelism } for testing/documenting
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aspects of that functionality. */
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/* For GCN offloading compilation, we (expectedly) run into a
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'gang-private data-share memory exhausted' error: the default
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'-mgang-private-size' is too small. Raise it so that 'uint32_t x[344]' plus
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some internal-use data fits in:
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{ dg-additional-options -foffload-options=amdgcn-amdhsa=-mgang-private-size=1555 { target openacc_radeon_accel_selected } } */
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/* It's only with Tcl 8.5 (released in 2007) that "the variable 'varName'
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passed to 'incr' may be unset, and in that case, it will be set to [...]",
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so to maintain compatibility with earlier Tcl releases, we manually
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initialize counter variables:
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{ dg-line l_dummy[variable c_compute 0 c_loop 0] }
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{ dg-message dummy {} { target iN-VAl-Id } l_dummy } to avoid
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"WARNING: dg-line var l_dummy defined, but not used". */
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#include <assert.h>
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#include <stdint.h>
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/* Based on 'private-variables.c:loop_g_5'. */
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/* To demonstrate PR105421 "GCN offloading, raised '-mgang-private-size':
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'HSA_STATUS_ERROR_MEMORY_APERTURE_VIOLATION'", a 'struct' indirection, for
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example, has been necessary in combination with a separate routine. */
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struct data
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{
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uint32_t *x;
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uint32_t *arr;
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uint32_t i;
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};
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#pragma acc routine worker
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static void
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loop_g_5_r(struct data *data)
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{
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uint32_t *x = data->x;
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uint32_t *arr = data->arr;
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uint32_t i = data->i;
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#pragma acc loop /* { dg-line l_loop[incr c_loop] } */
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/* { dg-note {variable 'j' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop$c_loop } */
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/* { dg-optimized {assigned OpenACC worker vector loop parallelism} {} { target *-*-* } l_loop$c_loop } */
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for (int j = 0; j < 320; j++)
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arr[i * 320 + j] += x[(i * 320 + j) % 344];
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}
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void loop_g_5()
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{
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uint32_t x[344], i, arr[320 * 320];
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for (i = 0; i < 320 * 320; i++)
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arr[i] = i;
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#pragma acc parallel copy(arr)
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{
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#pragma acc loop gang private(x) /* { dg-line l_loop[incr c_loop] } */
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/* { dg-note {variable 'x' in 'private' clause is candidate for adjusting OpenACC privatization level} {} { target *-*-* } l_loop$c_loop }
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{ dg-note {variable 'x' ought to be adjusted for OpenACC privatization level: 'gang'} {} { target *-*-* } l_loop$c_loop }
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{ dg-note {variable 'x' adjusted for OpenACC privatization level: 'gang'} {} { target { ! openacc_host_selected } } l_loop$c_loop } */
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/* { dg-note {variable 'i' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop$c_loop } */
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/* { dg-note {variable 'data' declared in block is candidate for adjusting OpenACC privatization level} {} { target *-*-* } l_loop$c_loop }
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{ dg-note {variable 'data' ought to be adjusted for OpenACC privatization level: 'gang'} {} { target *-*-* } l_loop$c_loop }
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{ dg-note {variable 'data' adjusted for OpenACC privatization level: 'gang'} {} { target { ! openacc_host_selected } } l_loop$c_loop } */
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/* { dg-note {variable 'j' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop$c_loop } */
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/* { dg-optimized {assigned OpenACC gang loop parallelism} {} { target *-*-* } l_loop$c_loop } */
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for (i = 0; i < 320; i++)
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{
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for (int j = 0; j < 344; j++)
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x[j] = j * (2 + i);
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struct data data = { x, arr, i };
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loop_g_5_r(&data); /* { dg-line l_compute[incr c_compute] } */
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/* { dg-optimized {assigned OpenACC worker vector loop parallelism} {} { target *-*-* } l_compute$c_compute } */
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}
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}
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for (i = 0; i < 320 * 320; i++)
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assert(arr[i] == i + (i % 344) * (2 + (i / 320)));
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}
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int main ()
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{
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loop_g_5();
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return 0;
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}
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