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/* Test OpenACC 'kernels' construct decomposition. */
/* { dg-additional-options "-fopt-info-omp-all" } */
/* { dg-additional-options "--param=openacc-kernels=decompose" }
/* { dg-additional-options "-O2" } for 'parloops'. */
/* { dg-additional-options "--param=openacc-privatization=noisy" }
Prune a few: uninteresting, and potentially varying depending on GCC configuration (data types):
{ dg-prune-output {note: variable 'D\.[0-9]+' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} } */
/* { dg-additional-options "-Wopenacc-parallelism" } for testing/documenting
aspects of that functionality. */
/* See also '../../gfortran.dg/goacc/kernels-decompose-2.f95'. */
/* 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 c_part 0] }
{ dg-message "dummy" "" { target iN-VAl-Id } l_dummy } to avoid
"WARNING: dg-line var l_dummy defined, but not used". */
#pragma acc routine gang
extern int
f_g (int);
#pragma acc routine worker
extern int
f_w (int);
#pragma acc routine vector
extern int
f_v (int);
#pragma acc routine seq
extern int
f_s (int);
int
main ()
{
int x, y, z;
#define N 10
int a[N], b[N], c[N];
#pragma acc kernels /* { dg-line l_compute[incr c_compute] } */
/* { dg-note {OpenACC 'kernels' decomposition: variable 'z' in 'copy' clause requested to be made addressable} {} { target *-*-* } l_compute$c_compute }
{ dg-note {variable 'z' made addressable} {} { target *-*-* } l_compute$c_compute } */
/* { dg-note {OpenACC 'kernels' decomposition: variable 'y' in 'copy' clause requested to be made addressable} {} { target *-*-* } l_compute$c_compute }
{ dg-note {variable 'y' made addressable} {} { target *-*-* } l_compute$c_compute } */
/* { dg-note {OpenACC 'kernels' decomposition: variable 'x' in 'copy' clause requested to be made addressable} {} { target *-*-* } l_compute$c_compute }
{ dg-note {variable 'x' made addressable} {} { target *-*-* } l_compute$c_compute } */
/* { dg-note {variable 'x\.0' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_compute$c_compute } */
{
/* { dg-note {beginning 'gang-single' part in OpenACC 'kernels' region} {} { target *-*-* } .+1 } */
x = 0;
y = x < 10;
z = x++;
;
}
{
int i;
#pragma acc kernels /* { dg-line l_compute[incr c_compute] } */
/* { dg-note {OpenACC 'kernels' decomposition: variable 'i' in 'copy' clause requested to be made addressable} {} { target *-*-* } l_compute$c_compute }
{ dg-note {variable 'i' made addressable} {} { target *-*-* } l_compute$c_compute } */
/* { dg-optimized {assigned OpenACC gang loop parallelism} {} { target *-*-* } l_compute$c_compute } */
/* { dg-note {beginning 'parloops' part in OpenACC 'kernels' region} {} { target *-*-* } .+1 } */
for (i = 0; i < N; i++)
a[i] = 0;
}
#pragma acc kernels /* { dg-line l_compute[incr c_compute] } */
/* { dg-note {beginning 'gang-single' part in OpenACC 'kernels' region} {} { target *-*-* } l_compute$c_compute } */
/* { dg-note {OpenACC 'kernels' decomposition: variable 'i' declared in block requested to be made addressable} {} { target *-*-* } l_compute$c_compute }
{ dg-note {variable 'i' made addressable} {} { target *-*-* } l_compute$c_compute } */
/* { dg-note {variable 'i' declared in block is candidate for adjusting OpenACC privatization level} {} { target *-*-* } l_compute$c_compute } */
{
int i;
}
#pragma acc kernels /* { dg-line l_compute[incr c_compute] } */
/* { dg-note {OpenACC 'kernels' decomposition: variable 'i' declared in block requested to be made addressable} {} { target *-*-* } l_compute$c_compute }
{ dg-note {variable 'i' made addressable} {} { target *-*-* } l_compute$c_compute } */
/* { dg-note {variable 'i' declared in block is candidate for adjusting OpenACC privatization level} {} { target *-*-* } l_compute$c_compute } */
/* { dg-optimized {assigned OpenACC gang loop parallelism} {} { target *-*-* } l_compute$c_compute } */
/* { dg-note {beginning 'parloops' part in OpenACC 'kernels' region} {} { target *-*-* } .+1 } */
for (int i = 0; i < N; i++)
a[i] = 0;
#pragma acc kernels loop /* { dg-line l_loop_i[incr c_loop_i] } */
/* { dg-note {forwarded loop nest in OpenACC 'kernels' region to 'parloops' for analysis} {} { target *-*-* } l_loop_i$c_loop_i } */
/* { dg-note {variable 'i' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i$c_loop_i } */
/* { dg-note {variable 'i' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i$c_loop_i } */
/* { dg-optimized "assigned OpenACC seq loop parallelism" "" { target *-*-* } l_loop_i$c_loop_i } */
for (int i = 0; i < N; i++)
b[i] = a[N - i - 1];
#pragma acc kernels /* { dg-line l_compute[incr c_compute] } */
/* { dg-note {OpenACC 'kernels' decomposition: variable 'z' in 'copy' clause requested to be made addressable} {} { target *-*-* } l_compute$c_compute }
{ dg-note {variable 'z' already made addressable} {} { target *-*-* } l_compute$c_compute } */
{
#pragma acc loop /* { dg-line l_loop_i[incr c_loop_i] } */
/* { dg-note {forwarded loop nest in OpenACC 'kernels' region to 'parloops' for analysis} {} { target *-*-* } l_loop_i$c_loop_i } */
/* { dg-note {variable 'i' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i$c_loop_i } */
/* { dg-note {variable 'i' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i$c_loop_i } */
/* { dg-optimized "assigned OpenACC seq loop parallelism" "" { target *-*-* } l_loop_i$c_loop_i } */
for (int i = 0; i < N; i++)
b[i] = a[N - i - 1];
#pragma acc loop /* { dg-line l_loop_i[incr c_loop_i] } */
/* { dg-note {forwarded loop nest in OpenACC 'kernels' region to 'parloops' for analysis} {} { target *-*-* } l_loop_i$c_loop_i } */
/* { dg-note {variable 'i' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i$c_loop_i } */
/* { dg-note {variable 'i' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i$c_loop_i } */
/* { dg-optimized "assigned OpenACC seq loop parallelism" "" { target *-*-* } l_loop_i$c_loop_i } */
for (int i = 0; i < N; i++)
c[i] = a[i] * b[i];
/* { dg-note {beginning 'gang-single' part in OpenACC 'kernels' region} {} { target *-*-* } .+1 } */
a[z] = 0;
#pragma acc loop /* { dg-line l_loop_i[incr c_loop_i] } */
/* { dg-note {forwarded loop nest in OpenACC 'kernels' region to 'parloops' for analysis} {} { target *-*-* } l_loop_i$c_loop_i } */
/* { dg-note {variable 'i' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i$c_loop_i } */
/* { dg-note {variable 'i' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i$c_loop_i } */
/* { dg-optimized "assigned OpenACC seq loop parallelism" "" { target *-*-* } l_loop_i$c_loop_i } */
for (int i = 0; i < N; i++)
c[i] += a[i];
#pragma acc loop seq /* { dg-line l_loop_i[incr c_loop_i] } */
/* { dg-note {parallelized loop nest in OpenACC 'kernels' region} {} { target *-*-* } l_loop_i$c_loop_i } */
/* { dg-note {variable 'i' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i$c_loop_i } */
/* { dg-note {variable 'i' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i$c_loop_i } */
/* { dg-optimized "assigned OpenACC seq loop parallelism" "" { target *-*-* } l_loop_i$c_loop_i } */
for (int i = 0 + 1; i < N; i++)
c[i] += c[i - 1];
}
#pragma acc kernels /* { dg-line l_compute[incr c_compute] } */
/* { dg-note {OpenACC 'kernels' decomposition: variable 'y' in 'copy' clause requested to be made addressable} {} { target *-*-* } l_compute$c_compute }
{ dg-note {variable 'y' already made addressable} {} { target *-*-* } l_compute$c_compute } */
/* { dg-note {variable 'j' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_compute$c_compute } */
/*TODO What does this mean?
TODO { dg-optimized "assigned OpenACC worker vector loop parallelism" "" { target *-*-* } l_compute$c_compute } */
{
#pragma acc loop independent /* { dg-line l_loop_i[incr c_loop_i] } */
/* { dg-note {variable 'i' 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 } */
/* { dg-note {variable 'j' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i$c_loop_i } */
/* { dg-optimized "assigned OpenACC gang loop parallelism" "" { target *-*-* } l_loop_i$c_loop_i } */
/* { dg-note {parallelized loop nest in OpenACC 'kernels' region} {} { target *-*-* } l_loop_i$c_loop_i } */
for (int i = 0; i < N; ++i)
#pragma acc loop independent /* { dg-line l_loop_j[incr c_loop_j] } */
/* { dg-note {variable 'j' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_j$c_loop_j } */
/* { dg-note {variable 'k' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_j$c_loop_j } */
/* { dg-optimized "assigned OpenACC worker loop parallelism" "" { target *-*-* } l_loop_j$c_loop_j } */
for (int j = 0; j < N; ++j)
#pragma acc loop independent /* { dg-line l_loop_k[incr c_loop_k] } */
/* { dg-note {variable 'k' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_k$c_loop_k } */
/* { dg-warning "insufficient partitioning available to parallelize loop" "" { target *-*-* } l_loop_k$c_loop_k } */
/* { dg-optimized "assigned OpenACC seq loop parallelism" "" { target *-*-* } l_loop_k$c_loop_k } */
for (int k = 0; k < N; ++k)
a[(i + j + k) % N]
= b[j]
+ f_v (c[k]); /* { dg-optimized "assigned OpenACC vector loop parallelism" } */
/*TODO Should the following turn into "gang-single" instead of "parloops"?
TODO The problem is that the first STMT is 'if (y <= 4) goto <D.2547>; else goto <D.2548>;', thus "parloops". */
/* { dg-note {beginning 'parloops' part in OpenACC 'kernels' region} {} { target *-*-* } .+1 } */
if (y < 5)
#pragma acc loop independent /* { dg-line l_loop_j[incr c_loop_j] } */
/* { dg-note {variable 'j' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_j$c_loop_j } */
/* { dg-missed "unparallelized loop nest in OpenACC 'kernels' region: it's executed conditionally" "" { target *-*-* } l_loop_j$c_loop_j } */
for (int j = 0; j < N; ++j)
b[j] = f_w (c[j]);
}
#pragma acc kernels /* { dg-line l_compute[incr c_compute] } */
/* { dg-note {OpenACC 'kernels' decomposition: variable 'y' in 'copy' clause requested to be made addressable} {} { target *-*-* } l_compute$c_compute }
{ dg-note {variable 'y' already made addressable} {} { target *-*-* } l_compute$c_compute } */
/* { dg-bogus "warning: region contains gang partitioned code but is not gang partitioned" "TODO 'kernels'" { xfail *-*-* } l_compute$c_compute } */
{
y = f_g (a[5]); /* { dg-line l_part[incr c_part] } */
/*TODO If such a construct is placed in its own part (like it is, here), can't this actually use gang paralelism, instead of "gang-single"?
{ dg-note {beginning 'gang-single' part in OpenACC 'kernels' region} {} { target *-*-* } l_part$c_part } */
/* { dg-optimized "assigned OpenACC gang worker vector loop parallelism" "" { target *-*-* } l_part$c_part } */
#pragma acc loop independent /* { dg-line l_loop_j[incr c_loop_j] } */
/* { dg-note {parallelized loop nest in OpenACC 'kernels' region} {} { target *-*-* } l_loop_j$c_loop_j } */
/* { dg-note {variable 'j' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_j$c_loop_j } */
/* { dg-note {variable 'j' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_j$c_loop_j } */
/* { dg-optimized "assigned OpenACC gang loop parallelism" "" { target *-*-* } l_loop_j$c_loop_j } */
for (int j = 0; j < N; ++j)
b[j] = y + f_w (c[j]); /* { dg-optimized "assigned OpenACC worker vector loop parallelism" } */
}
#pragma acc kernels /* { dg-line l_compute[incr c_compute] } */
/* { dg-note {OpenACC 'kernels' decomposition: variable 'z' in 'copy' clause requested to be made addressable} {} { target *-*-* } l_compute$c_compute }
{ dg-note {variable 'z' already made addressable} {} { target *-*-* } l_compute$c_compute } */
/* { dg-note {OpenACC 'kernels' decomposition: variable 'y' in 'copy' clause requested to be made addressable} {} { target *-*-* } l_compute$c_compute }
{ dg-note {variable 'y' already made addressable} {} { target *-*-* } l_compute$c_compute } */
{
/* { dg-note {beginning 'gang-single' part in OpenACC 'kernels' region} {} { target *-*-* } .+1 } */
y = 3;
#pragma acc loop independent /* { dg-line l_loop_j[incr c_loop_j] } */
/* { dg-note {parallelized loop nest in OpenACC 'kernels' region} {} { target *-*-* } l_loop_j$c_loop_j } */
/* { dg-note {variable 'j' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_j$c_loop_j } */
/* { dg-note {variable 'j' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_j$c_loop_j } */
/* { dg-optimized "assigned OpenACC gang worker loop parallelism" "" { target *-*-* } l_loop_j$c_loop_j } */
for (int j = 0; j < N; ++j)
b[j] = y + f_v (c[j]); /* { dg-optimized "assigned OpenACC vector loop parallelism" } */
/* { dg-note {beginning 'gang-single' part in OpenACC 'kernels' region} {} { target *-*-* } .+1 } */
z = 2;
}
/* { dg-note {beginning 'gang-single' part in OpenACC 'kernels' region} {} { target *-*-* } .+1 } */
#pragma acc kernels
;
return 0;
}
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