From de6e81ea961219d0726db67776d11ce75a4cae1b Mon Sep 17 00:00:00 2001
From: Thomas Schwinge <thomas@codesourcery.com>
Date: Tue, 15 Feb 2022 23:03:49 +0100
Subject: [PATCH] OpenACC 'kernels' decomposition: Move 'TREE_ADDRESSABLE'
setting into OMP lowering [PR100280]
... in preparation for later changes. No functional change.
Follow-up to commit 9b32c1669aad5459dd053424f9967011348add83
"OpenACC 'kernels' decomposition: Mark variables used in
synthesized data clauses as addressable [PR100280]".
PR middle-end/100280
gcc/
* tree.h (OMP_CLAUSE_MAP_DECL_MAKE_ADDRESSABLE): New.
* tree-core.h: Document it.
* omp-low.cc (scan_sharing_clauses) <OMP_CLAUSE_MAP>: Handle
'OMP_CLAUSE_MAP_DECL_MAKE_ADDRESSABLE'.
* omp-oacc-kernels-decompose.cc (maybe_build_inner_data_region):
Set 'OMP_CLAUSE_MAP_DECL_MAKE_ADDRESSABLE' instead of
'TREE_ADDRESSABLE'.
gcc/testsuite/
* c-c++-common/goacc/classify-kernels-unparallelized.c: Adjust.
* c-c++-common/goacc/classify-kernels.c: Likewise.
* c-c++-common/goacc/kernels-decompose-2.c: Likewise.
* c-c++-common/goacc/kernels-decompose-pr100280-1.c: Likewise.
* c-c++-common/goacc/kernels-decompose-pr104061-1-2.c: Likewise.
* c-c++-common/goacc/kernels-decompose-pr104061-1-3.c: Likewise.
* c-c++-common/goacc/kernels-decompose-pr104061-1-4.c: Likewise.
* c-c++-common/goacc/kernels-decompose-pr104132-1.c: Likewise.
* c-c++-common/goacc/kernels-decompose-pr104133-1.c: Likewise.
libgomp/
* testsuite/libgomp.oacc-c-c++-common/f-asyncwait-1.c: Adjust.
* testsuite/libgomp.oacc-c-c++-common/kernels-decompose-1.c:
Likewise.
---
gcc/omp-low.cc | 31 +++++++++++++++++++
gcc/omp-oacc-kernels-decompose.cc | 5 +--
.../goacc/classify-kernels-unparallelized.c | 3 +-
.../c-c++-common/goacc/classify-kernels.c | 3 +-
.../c-c++-common/goacc/kernels-decompose-2.c | 6 ++--
.../goacc/kernels-decompose-pr100280-1.c | 3 +-
.../goacc/kernels-decompose-pr104061-1-2.c | 3 +-
.../goacc/kernels-decompose-pr104061-1-3.c | 3 +-
.../goacc/kernels-decompose-pr104061-1-4.c | 3 +-
.../goacc/kernels-decompose-pr104132-1.c | 3 +-
.../goacc/kernels-decompose-pr104133-1.c | 3 +-
gcc/tree-core.h | 3 ++
gcc/tree.h | 5 +++
.../libgomp.oacc-c-c++-common/f-asyncwait-1.c | 9 ++++--
.../kernels-decompose-1.c | 3 +-
15 files changed, 70 insertions(+), 16 deletions(-)
@@ -1495,6 +1495,37 @@ scan_sharing_clauses (tree clauses, omp_context *ctx)
if (ctx->outer)
scan_omp_op (&OMP_CLAUSE_SIZE (c), ctx->outer);
decl = OMP_CLAUSE_DECL (c);
+ /* If requested, make 'decl' addressable. */
+ if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP
+ && OMP_CLAUSE_MAP_DECL_MAKE_ADDRESSABLE (c))
+ {
+ gcc_checking_assert (DECL_P (decl));
+
+ gcc_checking_assert (!TREE_ADDRESSABLE (decl));
+ TREE_ADDRESSABLE (decl) = 1;
+
+ if (dump_enabled_p ())
+ {
+ location_t loc = OMP_CLAUSE_LOCATION (c);
+ const dump_user_location_t d_u_loc
+ = dump_user_location_t::from_location_t (loc);
+ /* PR100695 "Format decoder, quoting in 'dump_printf' etc." */
+#if __GNUC__ >= 10
+# pragma GCC diagnostic push
+# pragma GCC diagnostic ignored "-Wformat"
+#endif
+ dump_printf_loc (MSG_NOTE, d_u_loc,
+ "variable %<%T%>"
+ " made addressable\n",
+ decl);
+#if __GNUC__ >= 10
+# pragma GCC diagnostic pop
+#endif
+ }
+
+ /* Done. */
+ OMP_CLAUSE_MAP_DECL_MAKE_ADDRESSABLE (c) = 0;
+ }
/* Global variables with "omp declare target" attribute
don't need to be copied, the receiver side will use them
directly. However, global variables with "omp declare target link"
@@ -847,7 +847,8 @@ maybe_build_inner_data_region (location_t loc, gimple *body,
/* See <https://gcc.gnu.org/PR100280>. */
if (!TREE_ADDRESSABLE (v))
{
- TREE_ADDRESSABLE (v) = 1;
+ /* Request that OMP lowering make 'v' addressable. */
+ OMP_CLAUSE_MAP_DECL_MAKE_ADDRESSABLE (new_clause) = 1;
if (dump_enabled_p ())
{
@@ -861,7 +862,7 @@ maybe_build_inner_data_region (location_t loc, gimple *body,
dump_printf_loc (MSG_NOTE, d_u_loc,
"OpenACC %<kernels%> decomposition:"
" variable %<%T%> declared in block"
- " made addressable\n",
+ " requested to be made addressable\n",
v);
#if __GNUC__ >= 10
# pragma GCC diagnostic pop
@@ -29,7 +29,8 @@ extern unsigned int f (unsigned int);
void KERNELS ()
{
#pragma acc kernels copyin (a[0:N], b[0:N]) copyout (c[0:N]) /* { dg-line l_compute1 } */
- /* { dg-note {OpenACC 'kernels' decomposition: variable 'i' declared in block made addressable} {} { target *-*-* } l_compute1 } */
+ /* { dg-note {OpenACC 'kernels' decomposition: variable 'i' declared in block requested to be made addressable} {} { target *-*-* } l_compute1 } */
+ /* { dg-note {variable 'i' made addressable} {} { target *-*-* } l_compute1 } */
/* { dg-note {variable 'i' declared in block is candidate for adjusting OpenACC privatization level} {} { target *-*-* } l_compute1 } */
/* { dg-note {variable '[abc]\.[0-9]+' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_compute1 } */
/* { dg-optimized {assigned OpenACC seq loop parallelism} {} { target *-*-* } l_compute1 } */
@@ -25,7 +25,8 @@ extern unsigned int *__restrict c;
void KERNELS ()
{
#pragma acc kernels copyin (a[0:N], b[0:N]) copyout (c[0:N]) /* { dg-line l_compute1 } */
- /* { dg-note {OpenACC 'kernels' decomposition: variable 'i' declared in block made addressable} {} { target *-*-* } l_compute1 } */
+ /* { dg-note {OpenACC 'kernels' decomposition: variable 'i' declared in block requested to be made addressable} {} { target *-*-* } l_compute1 } */
+ /* { dg-note {variable 'i' made addressable} {} { target *-*-* } l_compute1 } */
/* { dg-note {variable 'i' declared in block is candidate for adjusting OpenACC privatization level} {} { target *-*-* } l_compute1 } */
/* { dg-note {variable '[abc]\.[0-9]+' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_compute1 } */
/* { dg-optimized {assigned OpenACC gang loop parallelism} {} { target *-*-* } l_compute1 } */
@@ -66,14 +66,16 @@ main ()
#pragma acc kernels /* { dg-line l_compute[incr c_compute] } */
/* { dg-note {beginning 'gang-single' part in OpenACC 'kernels' region} {} { target *-*-* } l_compute$c_compute } */
- /* { dg-note {OpenACC 'kernels' decomposition: variable 'i' declared in block made addressable} {} { target *-*-* } l_compute$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$c_compute } */
{
int i;
}
#pragma acc kernels /* { dg-line l_compute[incr c_compute] } */
- /* { dg-note {OpenACC 'kernels' decomposition: variable 'i' declared in block made addressable} {} { target *-*-* } l_compute$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$c_compute } */
/* { dg-optimized {assigned OpenACC gang loop parallelism} {} { target *-*-* } l_compute$c_compute } */
/* { dg-note {beginning 'parloops' part in OpenACC 'kernels' region} {} { target *-*-* } .+1 } */
@@ -10,7 +10,8 @@ void
foo (void) /* { dg-line l_f_1 } */
{
#pragma acc kernels /* { dg-line l_k_1 } */
- /* { dg-note {OpenACC 'kernels' decomposition: variable 'i' declared in block made addressable} {} { target *-*-* } l_k_1 } */
+ /* { dg-note {OpenACC 'kernels' decomposition: variable 'i' declared in block requested to be made addressable} {} { target *-*-* } l_k_1 } */
+ /* { dg-note {variable 'i' made addressable} {} { target *-*-* } l_k_1 } */
/* { dg-note {variable 'i' declared in block is candidate for adjusting OpenACC privatization level} {} { target *-*-* } l_k_1 } */
/* { dg-optimized {assigned OpenACC seq loop parallelism} {} { target *-*-* } l_k_1 } */
/* { dg-bogus {note: beginning 'parloops' part in OpenACC 'kernels' region} {TODO location} { xfail *-*-* } l_f_1 }
@@ -16,7 +16,8 @@ foo (void)
{
/* { dg-bogus {sorry, unimplemented: 'gimple_debug' not yet supported} TODO { xfail *-*-* } .+1 } */
#pragma acc kernels /* { dg-line l_compute1 } */
- /* { dg-bogus {note: OpenACC 'kernels' decomposition: variable 'k' declared in block made addressable} {w/ debug} { xfail *-*-* } l_compute1 } */
+ /* { dg-bogus {note: OpenACC 'kernels' decomposition: variable 'k' declared in block requested to be made addressable} {w/ debug} { xfail *-*-* } l_compute1 } */
+ /* { dg-bogus {note: variable 'k' made addressable} {w/ debug} { xfail *-*-* } l_compute1 } */
/* { dg-note {variable 'arr_0\.0' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { xfail *-*-* } l_compute1 } */
{
/* { dg-bogus {note: beginning 'gang-single' part in OpenACC 'kernels' region} {w/ debug} { xfail c++ } .-1 }
@@ -23,7 +23,8 @@ foo (void)
{
/* { dg-bogus {sorry, unimplemented: 'gimple_debug' not yet supported} {} { target *-*-* } .+1 } suppressed via '-fcompare-debug'. */
#pragma acc kernels /* { dg-line l_compute1 } */
- /* { dg-bogus {note: OpenACC 'kernels' decomposition: variable 'k' declared in block made addressable} {w/ debug} { xfail *-*-* } l_compute1 } */
+ /* { dg-bogus {note: OpenACC 'kernels' decomposition: variable 'k' declared in block requested to be made addressable} {w/ debug} { xfail *-*-* } l_compute1 } */
+ /* { dg-bogus {note: variable 'k' made addressable} {w/ debug} { xfail *-*-* } l_compute1 } */
/* { dg-bogus {note: variable 'k' declared in block is candidate for adjusting OpenACC privatization level} {w/ debug} { xfail *-*-* } l_compute1 } */
/* { dg-note {variable 'arr_0\.0' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_compute1 } */
{
@@ -21,7 +21,8 @@ foo (void)
{
/* { dg-bogus {sorry, unimplemented: 'gimple_debug' not yet supported} {} { target *-*-* } .+1 } suppressed via '-fcompare-debug'. */
#pragma acc kernels /* { dg-line l_compute1 } */
- /* { dg-bogus {note: OpenACC 'kernels' decomposition: variable 'k' declared in block made addressable} {w/ debug} { xfail *-*-* } l_compute1 } */
+ /* { dg-bogus {note: OpenACC 'kernels' decomposition: variable 'k' declared in block requested to be made addressable} {w/ debug} { xfail *-*-* } l_compute1 } */
+ /* { dg-bogus {note: variable 'k' made addressable} {w/ debug} { xfail *-*-* } l_compute1 } */
/* { dg-bogus {note: variable 'k' declared in block is candidate for adjusting OpenACC privatization level} {w/ debug} { xfail *-*-* } l_compute1 } */
/* { dg-note {variable 'arr_0\.0' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_compute1 } */
{
@@ -18,7 +18,8 @@ void
foo (void)
{
#pragma acc kernels /* { dg-line l_compute1 } */
- /* { dg-note {OpenACC 'kernels' decomposition: variable 'k' declared in block made addressable} {} { target *-*-* } l_compute1 } */
+ /* { dg-note {OpenACC 'kernels' decomposition: variable 'k' declared in block requested to be made addressable} {} { target *-*-* } l_compute1 } */
+ /* { dg-note {variable 'k' made addressable} {} { target *-*-* } l_compute1 } */
/* { dg-note {variable 'k' declared in block is candidate for adjusting OpenACC privatization level} {} { target *-*-* } l_compute1 } */
{
int k;
@@ -18,7 +18,8 @@ void
foo (void)
{
#pragma acc kernels /* { dg-line l_compute1 } */
- /* { dg-note {OpenACC 'kernels' decomposition: variable 'k' declared in block made addressable} {} { target *-*-* } l_compute1 } */
+ /* { dg-note {OpenACC 'kernels' decomposition: variable 'k' declared in block requested to be made addressable} {} { target *-*-* } l_compute1 } */
+ /* { dg-note {variable 'k' made addressable} {} { target *-*-* } l_compute1 } */
/* { dg-note {variable 'k' declared in block is candidate for adjusting OpenACC privatization level} {} { target *-*-* } l_compute1 } */
/* { dg-note {variable 'arr_0\.0' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_compute1 } */
/* { dg-note {variable 'arr_0\.1' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_compute1 } */
@@ -1155,6 +1155,9 @@ struct GTY(()) tree_base {
PREDICT_EXPR_OUTCOME in
PREDICT_EXPR
+ OMP_CLAUSE_MAP_DECL_MAKE_ADDRESSABLE in
+ OMP_CLAUSE
+
static_flag:
TREE_STATIC in
@@ -1699,6 +1699,11 @@ class auto_suppress_location_wrappers
#define OMP_CLAUSE_MAP_RUNTIME_IMPLICIT_P(NODE) \
(OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_MAP)->base.deprecated_flag)
+/* Flag that 'OMP_CLAUSE_DECL (NODE)' is to be made addressable during OMP
+ lowering. */
+#define OMP_CLAUSE_MAP_DECL_MAKE_ADDRESSABLE(NODE) \
+ (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_MAP)->base.addressable_flag)
+
/* True on an OMP_CLAUSE_USE_DEVICE_PTR with an OpenACC 'if_present'
clause. */
#define OMP_CLAUSE_USE_DEVICE_PTR_IF_PRESENT(NODE) \
@@ -260,7 +260,8 @@ main (void)
#pragma acc data copy (a[0:N]) copy (b[0:N]) copy (c[0:N]) copy (d[0:N])
{
#pragma acc kernels async (1) /* { dg-line l_compute[incr c_compute] } */
- /* { dg-note {OpenACC 'kernels' decomposition: variable 'i' declared in block made addressable} "" { 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 } */
/* { dg-optimized "assigned OpenACC seq loop parallelism" "" { target { ! __OPTIMIZE__ } } l_compute$c_compute }
{ dg-optimized "assigned OpenACC gang loop parallelism" "" { target { __OPTIMIZE__ } } l_compute$c_compute } */
@@ -269,7 +270,8 @@ main (void)
b[i] = (a[i] * a[i] * a[i]) / a[i];
#pragma acc kernels async (1) /* { dg-line l_compute[incr c_compute] } */
- /* { dg-note {OpenACC 'kernels' decomposition: variable 'i' declared in block made addressable} "" { 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 } */
/* { dg-optimized "assigned OpenACC seq loop parallelism" "" { target { ! __OPTIMIZE__ } } l_compute$c_compute }
{ dg-optimized "assigned OpenACC gang loop parallelism" "" { target { __OPTIMIZE__ } } l_compute$c_compute } */
@@ -313,7 +315,8 @@ main (void)
#pragma acc data copy (a[0:N], b[0:N], c[0:N], d[0:N], e[0:N])
{
#pragma acc kernels async (1) /* { dg-line l_compute[incr c_compute] } */
- /* { dg-note {OpenACC 'kernels' decomposition: variable 'i' declared in block made addressable} "" { 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 } */
/* { dg-optimized "assigned OpenACC seq loop parallelism" "" { target { ! __OPTIMIZE__ } } l_compute$c_compute }
{ dg-optimized "assigned OpenACC gang loop parallelism" "" { target { __OPTIMIZE__ } } l_compute$c_compute } */
@@ -32,7 +32,8 @@ int main()
{
/* { dg-note {beginning 'gang-single' part in OpenACC 'kernels' region} {} { target *-*-* } .+1 } */
int c = 234;
- /* { dg-note {OpenACC 'kernels' decomposition: variable 'c' declared in block made addressable} "" { target *-*-* } l_compute$c_compute } */
+ /* { dg-note {OpenACC 'kernels' decomposition: variable 'c' declared in block requested to be made addressable} "" { target *-*-* } l_compute$c_compute } */
+ /* { dg-note {variable 'c' made addressable} {} { target *-*-* } l_compute$c_compute } */
/* { dg-note {variable 'c' declared in block is candidate for adjusting OpenACC privatization level} "" { target *-*-* } l_compute$c_compute } */
#pragma acc loop independent gang /* { dg-line l_loop_i[incr c_loop_i] } */
--
2.34.1