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/* Test of worker-private variables declared on a loop directive. */
/* { dg-additional-options "--param=openacc-kernels=decompose" } */
/* { dg-additional-options "-fopt-info-omp-all" }
{ dg-additional-options "-foffload=-fopt-info-omp-all" } */
/* { dg-additional-options "--param=openacc-privatization=noisy" }
{ dg-additional-options "-foffload=--param=openacc-privatization=noisy" }
Prune a few: uninteresting:
{ dg-prune-output {note: variable 'D\.[0-9]+' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} } */
/* It's only with Tcl 8.5 (released in 2007) that "the variable 'varName'
passed to 'incr' may be unset, and in that case, it will be set to [...]",
so to maintain compatibility with earlier Tcl releases, we manually
initialize counter variables:
{ dg-line l_dummy[variable c_compute 0 c_loop_i 0 c_loop_j 0 c_loop_k 0] }
{ dg-message "dummy" "" { target iN-VAl-Id } l_dummy } to avoid
"WARNING: dg-line var l_dummy defined, but not used". */
#include <assert.h>
int
main (int argc, char* argv[])
{
int x = 5, i, arr[32 * 32];
for (i = 0; i < 32 * 32; i++)
arr[i] = i;
#pragma acc kernels copy(arr)
{
int j;
/* { dg-note {forwarded loop nest in OpenACC 'kernels' region to 'parloops' for analysis} {} { target *-*-* } .+1 } */
#pragma acc loop gang(num:32) /* { dg-line l_loop_i[incr c_loop_i] } */
/* { dg-note {variable 'j' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i$c_loop_i } */
/* { dg-note {variable 'i' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i$c_loop_i } */
for (i = 0; i < 32; i++)
{
#pragma acc loop worker(num:32) private(x) /* { dg-line l_loop_j[incr c_loop_j] } */
/* { dg-note {variable 'x' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_j$c_loop_j } */
/* { dg-note {variable 'j' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_j$c_loop_j } */
for (j = 0; j < 32; j++)
{
x = i ^ j * 3;
/* Try to ensure 'x' accesses doesn't get optimized into a
temporary. */
__asm__ __volatile__ ("");
arr[i * 32 + j] += x;
}
}
/* { dg-optimized {assigned OpenACC seq loop parallelism} {} { target *-*-* } l_loop_i$c_loop_i } */
}
for (i = 0; i < 32 * 32; i++)
assert (arr[i] == i + ((i / 32) ^ (i % 32) * 3));
return 0;
}
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